What are the cheapest airlines to fly from Region of Ontario to Portland one-way?

The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 194. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Region of Ontario to Portland for a low price.

What are the most popular routes from Region of Ontario to Portland?

Most travellers choose Toronto Pearson Intl - Portland, Montreal Pierre Elliott Trudeau Intl - Portland or Toronto Region of Waterloo Intl - Portland when deciding on the best route from Region of Ontario to Portland.

What are the cheapest flights from Region of Ontario to Portland?

While on average a flight from Region of Ontario to Portland is generally C$ 1,048, our data shows the cheapest flight currently is C$ 947. When looking at the most popular route, (Toronto Pearson Intl - Portland), you can expect to pay C$ 323 for that flight.

What are the most popular airlines that fly from Region of Ontario to Portland?

The most popular airlines flying from Region of Ontario to Portland are American Airlines, Air Canada and Alaska Airlines. Something to consider prior to booking your flight.

How far in advance should I book a flight from Region of Ontario to Portland?

To save on the cost of your flight from Region of Ontario to Portland, book at least 28 days before your planned departure. Booking around this time can save you about 58% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 404 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 595.

What is the cheapest month to fly from Region of Ontario to Portland?

Flights from Region of Ontario to Portland lean towards being more expensive in March. Prices are generally better when you fly from Region of Ontario to Portland in September, with the cheapest ticket starting at C$ 254.

What airport do you fly into for flights to Portland from Ontario?

Located just 9.7 km from the city centre, Portland (PDX) is the airport most travelers will use when flying to Portland from Ontario.

Can I find deals for flights from Ontario to Portland that include hotel bookings?

Yes. In addition to deals on Ontario to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Portland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Portland.

Can I find deals for business class flights from Ontario to Portland?

Yes. Cheapflights offers flight deals from Ontario to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 194+ Flights from Ontario to Portland

Cheap flight deals from Ontario to Portland

Round-trip from	C$ 386
One-way from	C$ 194
Popular in	March
Cheapest in	September
Average price	C$ 768
Good one-way deal	C$ 1,019 or less

WestJet
20/8-27/8
3 total stops
17h 38m total
Ontario to Portland

Search Deals

WestJet
2/7
1 total stop
9h 52m total
Ontario to Portland

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 107 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Price to beat on a one-way flight from Ontario to Portland.

Search Deals

Find flight deals from Ontario to Portland

Cheapest flights from Ontario to Portland
Explore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Tue 22/76:00 a.m.YHM - PDX

1 stop9h 52mWestJet

Mon 28/71:45 p.m.PDX - YHM

1 stop7h 56mWestJet

Deal found 28/3C$ 386

Wed 20/86:10 a.m.YOW - PDX

2 stops9h 42mWestJet

Wed 27/81:45 p.m.PDX - YOW

1 stop7h 56mWestJet

Deal found 26/3C$ 386

Mon 21/78:00 a.m.YYZ - PDX

1 stop7h 52mWestJet

Mon 4/81:45 p.m.PDX - YYZ

2 stops13h 06mWestJet

Deal found 27/3C$ 400

Thu 1/58:00 a.m.YYZ - PDX

1 stop7h 52mMultiple Airlines

Tue 6/57:01 p.m.PDX - YYZ

1 stop21h 58mMultiple Airlines

Deal found 27/3C$ 404

Mon 28/46:10 p.m.YOW - PDX

1 stop26h 55mMultiple Airlines

Wed 30/42:32 p.m.PDX - YOW

1 stop23h 13mMultiple Airlines

Deal found 26/3C$ 409

Fri 4/77:00 a.m.YUL - PDX

1 stop8h 52mWestJet

Tue 22/71:45 p.m.PDX - YUL

1 stop7h 58mWestJet

Deal found 28/3C$ 413

Thu 8/56:00 a.m.YKF - PDX

3 stops33h 42mMultiple Airlines

Tue 13/55:40 p.m.PDX - YKF

3 stops28h 06mMultiple Airlines

Deal found 27/3C$ 416

Fri 9/56:00 a.m.YHM - PDX

1 stop9h 52mMultiple Airlines

Mon 12/55:40 p.m.PDX - YHM

2 stops28h 01mMultiple Airlines

Deal found 27/3C$ 430

Wed 25/66:15 a.m.YYZ - PDX

2 stops11h 30mAir Canada

Sun 29/63:25 p.m.PDX - YYZ

2 stops11h 19mAir Canada

Deal found 27/3C$ 436

Wed 30/411:34 a.m.YYZ - PDX

1 stop13h 14mDelta

Wed 7/55:25 a.m.PDX - YYZ

1 stop8h 15mDelta

Deal found 27/3C$ 443

Tue 12/88:40 a.m.YYZ - PDX

1 stop16h 46mUnited Airlines

Thu 21/87:45 a.m.PDX - YYZ

1 stop13h 59mUnited Airlines

Deal found 26/3C$ 446

Fri 4/78:05 a.m.YUL - PDX

2 stops19h 35mUnited Airlines

Tue 15/72:12 p.m.PDX - YUL

1 stop17h 28mUnited Airlines

Deal found 27/3C$ 450

Best flights from Ontario to Portland
Discover carefully curated flight deals from Ontario to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 March 2025.

Wed 20/86:10 a.m.YOW - PDX

2 stops9h 42mWestJet

Wed 27/81:45 p.m.PDX - YOW

1 stop7h 56mWestJet

Deal found 26/3C$ 386

Thu 1/58:00 a.m.YYZ - PDX

1 stop7h 52mMultiple Airlines

Tue 6/57:01 p.m.PDX - YYZ

1 stop21h 58mMultiple Airlines

Deal found 27/3C$ 404

Wed 25/66:15 a.m.YYZ - PDX

2 stops11h 30mAir Canada

Sun 29/63:25 p.m.PDX - YYZ

2 stops11h 19mAir Canada

Deal found 27/3C$ 436

Wed 30/411:34 a.m.YYZ - PDX

1 stop13h 14mDelta

Wed 7/55:25 a.m.PDX - YYZ

1 stop8h 15mDelta

Deal found 27/3C$ 443

Tue 12/88:40 a.m.YYZ - PDX

1 stop16h 46mUnited Airlines

Thu 21/87:45 a.m.PDX - YYZ

1 stop13h 59mUnited Airlines

Deal found 26/3C$ 446

Fri 18/43:14 p.m.YYZ - PDX

1 stop10h 48mAmerican Airlines

Wed 23/411:52 p.m.PDX - YYZ

1 stop9h 43mAmerican Airlines

Deal found 27/3C$ 476

Mon 14/44:45 p.m.YYZ - PDX

1 stop10h 10mAlaska Airlines

Mon 28/45:35 p.m.PDX - YYZ

2 stops18h 25mAlaska Airlines

Deal found 27/3C$ 605

Mon 21/78:00 a.m.YYZ - PDX

1 stop7h 52mWestJet

Mon 4/81:45 p.m.PDX - YYZ

2 stops13h 06mWestJet

Deal found 27/3C$ 400

Mon 28/46:10 p.m.YOW - PDX

1 stop26h 55mMultiple Airlines

Wed 30/42:32 p.m.PDX - YOW

1 stop23h 13mMultiple Airlines

Deal found 26/3C$ 409

Mon 5/56:00 a.m.YHM - PDX

1 stop9h 52mWestJet

Thu 8/51:45 p.m.PDX - YHM

1 stop7h 56mWestJet

Deal found 26/3C$ 404

Fri 4/78:05 a.m.YUL - PDX

2 stops19h 35mUnited Airlines

Tue 15/72:12 p.m.PDX - YUL

1 stop17h 28mUnited Airlines

Deal found 27/3C$ 450

Mon 5/54:25 p.m.YUL - PDX

1 stop9h 30mAir Canada

Wed 7/53:25 p.m.PDX - YUL

2 stops12h 45mAir Canada

Deal found 28/3C$ 456

Last-minute flights from Ontario to Portland
Discover last-minute flight deals from Ontario to Portland. Data last updated 28 March 2025 and is based on user searches.

Mon 31/33:44 p.m.YUL - PDX

1 stop10h 16mAmerican Airlines

Thu 3/411:59 p.m.PDX - YUL

1 stop11h 56mAmerican Airlines

Deal found 27/3C$ 555

Tue 1/43:00 p.m.YYZ - PDX

1 stop9h 54mUnited Airlines

Thu 3/46:00 a.m.PDX - YYZ

2 stops13h 48mUnited Airlines

Deal found 26/3C$ 577

Tue 1/48:10 p.m.YOW - PDX

2 stops39h 37mMultiple Airlines

Sun 6/46:50 p.m.PDX - YOW

1 stop18h 55mMultiple Airlines

Deal found 27/3C$ 667

Tue 1/412:20 p.m.YYZ - PDX

1 stop12h 26mDelta

Wed 2/412:59 a.m.PDX - YYZ

1 stop9h 36mDelta

Deal found 26/3C$ 710

Tue 1/412:40 p.m.YUL - PDX

2 stops14h 04mDelta

Tue 8/411:00 p.m.PDX - YUL

1 stop9h 33mDelta

Deal found 27/3C$ 542

Fri 4/44:31 p.m.YUL - PDX

1 stop9h 05mUnited Airlines

Sun 6/411:30 p.m.PDX - YUL

1 stop15h 20mUnited Airlines

Deal found 28/3C$ 540

Fri 4/410:15 a.m.YUL - PDX

2 stops11h 30mAir Canada

Sun 6/410:10 a.m.PDX - YUL

2 stops10h 41mAir Canada

Deal found 28/3C$ 570

Fri 4/412:48 p.m.YUL - PDX

2 stops14h 08mDelta

Sat 5/412:59 a.m.PDX - YUL

2 stops12h 53mDelta

Deal found 27/3C$ 622

Fri 4/46:05 a.m.YUL - PDX

1 stop17h 34mWestJet

Sat 5/412:59 a.m.PDX - YUL

1 stop19h 39mWestJet

Deal found 28/3C$ 945

Sat 5/47:25 p.m.YYZ - PDX

1 stop16h 22mMultiple Airlines

Mon 7/49:27 p.m.PDX - YYZ

1 stop15h 50mMultiple Airlines

Deal found 26/3C$ 480

Sat 5/46:15 a.m.YOW - PDX

2 stops44h 29mWestJet

Mon 7/45:40 a.m.PDX - YOW

2 stops15h 29mWestJet

Deal found 26/3C$ 992

Sat 5/44:45 p.m.YYZ - PDX

2 stops16h 35mAlaska Airlines

Mon 7/47:41 p.m.PDX - YYZ

2 stops12h 09mAlaska Airlines

Deal found 26/3C$ 1,233

One-way flights from Ontario to Portland
Search for one-way flight options from Ontario to Portland. Find affordable one-way fares based on user searches. Data last updated 28 March 2025.

Wed 2/76:00 a.m.YKF - PDX

1 stop9h 52mWestJet

Deal found 27/3C$ 194

Mon 5/511:00 a.m.YYZ - PDX

3 stops29h 37mMultiple Airlines

Deal found 27/3C$ 219

Wed 2/76:30 a.m.YYZ - PDX

1 stop9h 22mWestJet

Deal found 27/3C$ 227

Thu 24/77:00 a.m.YUL - PDX

1 stop8h 52mWestJet

Deal found 28/3C$ 236

Sat 10/55:15 a.m.YQT - PDX

2 stops16h 02mAir Canada

Deal found 26/3C$ 240

Fri 9/512:20 p.m.YOW - PDX

2 stops27h 20mMultiple Airlines

Deal found 27/3C$ 246

Tue 6/57:00 a.m.YUL - PDX

2 stops32h 40mMultiple Airlines

Deal found 27/3C$ 250

Tue 24/61:30 p.m.YUL - PDX

2 stops12h 26mAir Canada

Deal found 28/3C$ 257

Sun 31/89:00 a.m.YYZ - PDX

3 stops16h 38mUnited Airlines

Deal found 27/3C$ 263

Tue 24/68:05 a.m.YUL - PDX

1 stop17h 30mUnited Airlines

Deal found 28/3C$ 264

Thu 10/712:45 p.m.YUL - PDX

1 stop11h 59mDelta

Deal found 27/3C$ 267

Mon 5/57:00 p.m.YYZ - PDX

1 stop8h 31mAir Canada

Deal found 27/3C$ 272

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HamiltonPortland

YHM - PDX

YHMPDX

Hamilton

Tue 22/7

6:00 a.m.-12:52 p.m.

1 stop9h 52m

Portland

Mon 28/7

1:45 p.m.-12:41 a.m.

1 stop7h 56m

C$ 386

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Wed 20/8

6:10 a.m.-12:52 p.m.

2 stops9h 42m

Portland

Wed 27/8

1:45 p.m.-12:41 a.m.

1 stop7h 56m

C$ 386

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Mon 21/7

8:00 a.m.-12:52 p.m.

1 stop7h 52m

Portland

Mon 4/8

1:45 p.m.-5:51 a.m.

2 stops13h 06m

C$ 400

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Thu 1/5

8:00 a.m.-12:52 p.m.

1 stop7h 52m

Portland

Tue 6/5

7:01 p.m.-7:59 p.m.

1 stop21h 58m

C$ 404

OttawaPortland

YOW - PDX

YOWPDX

Ottawa

Mon 28/4

6:10 p.m.-6:05 p.m.

1 stop26h 55m

Portland

Wed 30/4

2:32 p.m.-4:45 p.m.

1 stop23h 13m

C$ 409

MontrealPortland

YUL - PDX

YULPDX

Montreal Pierre Elliott Trudeau Intl

Fri 4/7

7:00 a.m.-12:52 p.m.

1 stop8h 52m

Portland

Tue 22/7

1:45 p.m.-12:43 a.m.

1 stop7h 58m

C$ 413

TorontoPortland

YKF - PDX

YKFPDX

Toronto Region of Waterloo Intl

Thu 8/5

6:00 a.m.-12:42 p.m.

3 stops33h 42m

Portland

Tue 13/5

5:40 p.m.-12:46 a.m.

3 stops28h 06m

C$ 416

HamiltonPortland

YHM - PDX

YHMPDX

Hamilton

Fri 9/5

6:00 a.m.-12:52 p.m.

1 stop9h 52m

Portland

Mon 12/5

5:40 p.m.-12:41 a.m.

2 stops28h 01m

C$ 430

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 25/6

6:15 a.m.-2:45 p.m.

2 stops11h 30m

Portland

Sun 29/6

3:25 p.m.-5:44 a.m.

2 stops11h 19m

C$ 436

TorontoPortland

YYZ - PDX

YYZPDX

Toronto Pearson Intl

Wed 30/4

11:34 a.m.-9:48 p.m.

1 stop13h 14m

Portland

Wed 7/5

5:25 a.m.-4:40 p.m.

1 stop8h 15m

C$ 443

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 45 results

...

Best time to book a flight from Ontario to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Portland

What is the cheapest month to book a flight from Region of Ontario to Portland?

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Portland (average of C$ 259). Flying from Region of Ontario to Portland in December is currently the most expensive (average of C$ 444). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to PDX?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Portland as you normally would.

Rainfall in Portland by month

In terms of precipitation, rainfall in Portland ranges from 18.0 - 142.0 mm per month. November is typically the wettest month, when rainfall can reach 142.0 mm. July is typically the driest time to visit Portland when rainfall is around 18.0 mm.

Temperature in Portland by month

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Portland

See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Ontario to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,798 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,896 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,603 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

WestJet

7.2

Good

2,785 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What airport do you fly into for flights to Portland from Ontario?
Located just 9.7 km from the city centre, Portland (PDX) is the airport most travelers will use when flying to Portland from Ontario.
What are the cheapest airlines to fly from Region of Ontario to Portland one-way?
The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 194. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Region of Ontario to Portland for a low price.
What are the most popular routes from Region of Ontario to Portland?
Most travellers choose Toronto Pearson Intl - Portland, Montreal Pierre Elliott Trudeau Intl - Portland or Toronto Region of Waterloo Intl - Portland when deciding on the best route from Region of Ontario to Portland.
What are the cheapest flights from Region of Ontario to Portland?
While on average a flight from Region of Ontario to Portland is generally C$ 1,048, our data shows the cheapest flight currently is C$ 947. When looking at the most popular route, (Toronto Pearson Intl - Portland), you can expect to pay C$ 323 for that flight.
Can I find deals for flights from Ontario to Portland that include hotel bookings?
Yes. In addition to deals on Ontario to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Portland.
Can I find deals for business class flights from Ontario to Portland?
Yes. Cheapflights offers flight deals from Ontario to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Region of Ontario to Portland?
Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Portland (average of C$ 259). Flying from Region of Ontario to Portland in December is currently the most expensive (average of C$ 444). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Seaside

Tillamook

Beaverton

Camas

Vancouver

Cannon Beach

Lincoln City

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Ontario to Portland

Airline	Cheapest	Average	Flexibility	On-time
WestJet	CheapestC$ 285	AverageC$ 513	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Alaska Airlines	CheapestC$ 289	AverageC$ 478	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Delta	CheapestC$ 381	AverageC$ 511	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 381	AverageC$ 668	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	CheapestC$ 383	AverageC$ 671	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
American Airlines	CheapestC$ 416	AverageC$ 615	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Ontario to Portland?

Cheapflights makes it easy to find Ontario to Portland flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Portland?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Portland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Portland with no change fees?

Yes, we can. To see specific flights from Ontario to Portland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to Portland become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ontario to Portland from C$ 194

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Portland

Keep the following information in mind while searching for Ontario to Portland flight deals. Data was last updated 28 March 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Find flight deals from Ontario to Portland

Cheapest flights from Ontario to PortlandExplore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Explore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Portland that are best for you.

Best time to book a flight from Ontario to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Portland

What is the cheapest month to book a flight from Region of Ontario to Portland?

What is the cheapest time of day to fly from ON to PDX?

Find hourly flight availability from Ontario to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

Reviews of airlines servicing Portland

See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Ontario to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Portland from Ontario?

What are the cheapest airlines to fly from Region of Ontario to Portland one-way?

What are the most popular routes from Region of Ontario to Portland?

What are the cheapest flights from Region of Ontario to Portland?

Can I find deals for flights from Ontario to Portland that include hotel bookings?

How can I find direct flights from Ontario to Portland?

Can I find deals for business class flights from Ontario to Portland?

What is the cheapest month to book a flight from Region of Ontario to Portland?

Travelling to a place near Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Portland

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to Portland

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Portland?

Why should you use Cheapflights to find cheap flight tickets from Ontario to Portland?

Can Cheapflights find flights from Ontario to Portland with no change fees?

Can Cheapflights notify me if prices for flights from Ontario to Portland become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Ontario to Portland
Explore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.