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

The cheapest airlines for a one-way flight from State of Washington to Region of Ontario are WestJet (C$ 171), United Airlines (C$ 179), and Alaska Airlines (C$ 184).

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 23 days in advance, which can save you up to 84% on flights from State of Washington to Region of Ontario compared to booking the week you need them. Waiting 23 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 745. For sooner than that we have options available in the next 3 days from C$ 755.

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

January is one of the best times of the year to fly to Region of Ontario from State of Washington. Prices for January average C$ 714 per person but you can even find prices for as low as C$ 179. The most expensive prices can be found in the month of March. Opting for a January flight can save you 28% on your journey compared to booking in March

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

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

How can I find direct flights from Washington to Ontario?

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

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

Yes. Cheapflights offers flight deals from Washington to Ontario 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$ 171+ Flights from Washington to Ontario

Find flights from Washington to Ontario within your budget

Fly from

Fly to

Route

Depart

Return

Price

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 17/1

7:27 a.m.-3:05 p.m.

Nonstop4h 38m

Toronto Pearson Intl

Fri 24/1

7:55 a.m.-2:21 p.m.

1 stop9h 26m

C$ 348

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 17/1

7:27 a.m.-3:05 p.m.

Nonstop4h 38m

Toronto Pearson Intl

Mon 20/1

4:20 p.m.-6:43 p.m.

Nonstop5h 23m

C$ 359

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 31/1

3:15 p.m.-5:58 a.m.

2 stops11h 43m

Toronto Pearson Intl

Mon 3/2

8:00 a.m.-2:21 p.m.

1 stop9h 21m

C$ 365

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 17/1

6:05 a.m.-1:50 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Fri 24/1

7:05 p.m.-9:30 p.m.

Nonstop5h 25m

C$ 416

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 9/12

12:50 a.m.-1:41 p.m.

1 stop9h 51m

Toronto Pearson Intl

Thu 12/12

6:15 p.m.-12:21 a.m.

1 stop9h 06m

C$ 442

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Fri 10/1

8:30 p.m.-3:05 p.m.

1 stop15h 35m

Toronto Pearson Intl

Sat 18/1

4:20 p.m.-9:09 p.m.

1 stop7h 49m

C$ 442

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Fri 14/2

6:05 a.m.-1:50 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Sun 23/2

8:05 a.m.-12:55 a.m.

1 stop19h 50m

C$ 446

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 24/1

11:30 a.m.-12:45 a.m.

2 stops10h 15m

Ottawa

Tue 28/1

6:15 a.m.-2:21 p.m.

1 stop11h 06m

C$ 460

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 24/1

3:15 p.m.-1:51 p.m.

1 stop19h 36m

Ottawa

Tue 28/1

6:15 a.m.-2:21 p.m.

1 stop11h 06m

C$ 477

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Mon 16/12

6:05 a.m.-3:59 p.m.

1 stop6h 54m

Toronto Pearson Intl

Tue 7/1

2:45 p.m.-10:51 p.m.

1 stop11h 06m

C$ 479

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/11

Showing 1-10 of 60 results

...

Cheap flight deals from Washington to Ontario

Find flight deals from Washington to Ontario

Cheapest flights from Washington to Ontario
Explore the most affordable flight options available from Washington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Wed 11/127:22 a.m.SEA - YYZ

Nonstop4h 33mAlaska Airlines

Fri 13/124:20 p.m.YYZ - SEA

Nonstop5h 19mAlaska Airlines

Deal found 20/11C$ 386

Wed 25/123:15 p.m.SEA - YYZ

2 stops11h 45mWestJet

Tue 14/17:55 a.m.YYZ - SEA

1 stop9h 26mWestJet

Deal found 20/11C$ 398

Wed 25/123:15 p.m.SEA - YYZ

2 stops11h 45mMultiple Airlines

Tue 14/17:05 p.m.YYZ - SEA

Nonstop5h 25mMultiple Airlines

Deal found 20/11C$ 410

Wed 25/126:05 a.m.SEA - YYZ

Nonstop4h 45mUnited Airlines

Tue 14/17:05 p.m.YYZ - SEA

Nonstop5h 25mUnited Airlines

Deal found 20/11C$ 425

Mon 9/1212:50 a.m.SEA - YYZ

1 stop9h 51mDelta

Thu 12/126:15 p.m.YYZ - SEA

1 stop9h 06mDelta

Deal found 20/11C$ 442

Mon 30/126:05 a.m.SEA - YYZ

Nonstop4h 45mAir Canada

Tue 7/111:00 p.m.YYZ - SEA

1 stop13h 50mAir Canada

Deal found 19/11C$ 458

Mon 16/126:05 a.m.GEG - YYZ

1 stop6h 54mDelta

Tue 7/12:45 p.m.YYZ - GEG

1 stop11h 06mDelta

Deal found 21/11C$ 479

Wed 25/122:55 p.m.PDX - YYZ

1 stop12h 51mMultiple Airlines

Sun 5/17:25 p.m.YYZ - PDX

1 stop25h 34mMultiple Airlines

Deal found 19/11C$ 488

Sun 8/126:46 a.m.PDX - YUL

2 stops14h 42mMultiple Airlines

Thu 12/125:35 p.m.YUL - PDX

1 stop19h 12mMultiple Airlines

Deal found 20/11C$ 488

Wed 4/123:15 p.m.SEA - YKF

1 stop7h 01mWestJet

Sat 7/126:30 a.m.YKF - SEA

1 stop11h 08mWestJet

Deal found 20/11C$ 493

Wed 27/115:00 a.m.PDX - YYZ

1 stop6h 55mAlaska Airlines

Fri 13/124:20 p.m.YYZ - PDX

1 stop9h 35mAlaska Airlines

Deal found 20/11C$ 507

Sat 7/1210:45 p.m.PDX - YUL

1 stop10h 01mDelta

Fri 13/1212:50 p.m.YUL - PDX

1 stop12h 13mDelta

Deal found 20/11C$ 548

Best flights from Washington to Ontario
Discover carefully curated flight deals from Washington to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 21 November 2024.

Fri 17/17:27 a.m.SEA - YYZ

Nonstop4h 38mMultiple Airlines

Fri 24/17:55 a.m.YYZ - SEA

1 stop9h 26mMultiple Airlines

Deal found 20/11C$ 348

Fri 17/17:27 a.m.SEA - YYZ

Nonstop4h 38mAlaska Airlines

Mon 20/14:20 p.m.YYZ - SEA

Nonstop5h 23mAlaska Airlines

Deal found 21/11C$ 359

Fri 31/13:15 p.m.SEA - YYZ

2 stops11h 43mWestJet

Mon 3/28:00 a.m.YYZ - SEA

1 stop9h 21mWestJet

Deal found 20/11C$ 365

Fri 17/16:05 a.m.SEA - YYZ

Nonstop4h 45mAir Canada

Fri 24/17:05 p.m.YYZ - SEA

Nonstop5h 25mAir Canada

Deal found 20/11C$ 416

Mon 9/1212:50 a.m.SEA - YYZ

1 stop9h 51mDelta

Thu 12/126:15 p.m.YYZ - SEA

1 stop9h 06mDelta

Deal found 20/11C$ 442

Fri 14/26:05 a.m.SEA - YYZ

Nonstop4h 45mUnited Airlines

Sun 23/28:05 a.m.YYZ - SEA

1 stop19h 50mUnited Airlines

Deal found 20/11C$ 446

Thu 9/16:15 p.m.PDX - YYZ

2 stops18h 15mAmerican Airlines

Wed 15/111:31 a.m.YYZ - PDX

2 stops11h 40mAmerican Airlines

Deal found 20/11C$ 486

Sat 4/17:05 p.m.SEA - YYZ

2 stops23h 20mFrontier

Sat 11/16:00 a.m.YYZ - SEA

1 stop11h 24mFrontier

Deal found 20/11C$ 648

Mon 9/1211:55 p.m.SEA - YUL

3 stops19h 50mPorter Airlines

Tue 17/126:35 p.m.YUL - SEA

2 stops22h 40mPorter Airlines

Deal found 19/11C$ 822

Fri 10/18:30 p.m.GEG - YYZ

1 stop15h 35mAlaska Airlines

Sat 18/14:20 p.m.YYZ - GEG

1 stop7h 49mAlaska Airlines

Deal found 20/11C$ 442

Fri 24/111:30 a.m.SEA - YOW

2 stops10h 15mWestJet

Tue 28/16:15 a.m.YOW - SEA

1 stop11h 06mWestJet

Deal found 20/11C$ 460

Fri 24/13:15 p.m.SEA - YOW

1 stop19h 36mMultiple Airlines

Tue 28/16:15 a.m.YOW - SEA

1 stop11h 06mMultiple Airlines

Deal found 20/11C$ 477

Direct flights from Washington to Ontario
Explore direct flight options from Washington to Ontario based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 November 2024.

Fri 17/17:27 a.m.SEA - YYZ

Nonstop4h 38mAlaska Airlines

Mon 20/14:20 p.m.YYZ - SEA

Nonstop5h 23mAlaska Airlines

Deal found 21/11C$ 359

Fri 17/16:05 a.m.SEA - YYZ

Nonstop4h 45mAir Canada

Fri 24/17:05 p.m.YYZ - SEA

Nonstop5h 25mAir Canada

Deal found 20/11C$ 416

Fri 17/16:05 a.m.SEA - YYZ

Nonstop4h 45mUnited Airlines

Tue 21/17:05 p.m.YYZ - SEA

Nonstop5h 25mUnited Airlines

Deal found 21/11C$ 471

Mon 10/36:05 a.m.SEA - YYZ

Nonstop4h 45mMultiple Airlines

Fri 14/37:05 p.m.YYZ - SEA

Nonstop5h 25mMultiple Airlines

Deal found 20/11C$ 654

Last-minute flights from Washington to Ontario
Discover last-minute flight deals from Washington to Ontario. Data last updated 21 November 2024 and is based on user searches.

Wed 27/115:00 a.m.PDX - YYZ

1 stop6h 55mAlaska Airlines

Fri 13/124:20 p.m.YYZ - PDX

1 stop9h 35mAlaska Airlines

Deal found 20/11C$ 507

Wed 27/116:20 a.m.PDX - YYZ

1 stop9h 46mDelta

Fri 13/125:04 p.m.YYZ - PDX

2 stops9h 25mDelta

Deal found 20/11C$ 553

Wed 27/115:28 p.m.SEA - YYZ

1 stop10h 18mMultiple Airlines

Thu 28/1111:25 a.m.YYZ - SEA

2 stops16h 33mMultiple Airlines

Deal found 20/11C$ 695

Wed 27/112:10 p.m.GEG - YYZ

1 stop6h 24mDelta

Sat 30/112:55 p.m.YYZ - GEG

1 stop11h 22mDelta

Deal found 20/11C$ 872

Wed 27/119:35 p.m.SEA - YTZ

2 stops19h 30mMultiple Airlines

Sun 1/121:50 p.m.YTZ - SEA

2 stops20h 44mMultiple Airlines

Deal found 20/11C$ 894

Thu 28/1112:15 p.m.GEG - YYZ

2 stops29h 39mWestJet

Sun 1/1210:40 p.m.YYZ - GEG

2 stops22h 45mWestJet

Deal found 20/11C$ 851

Sat 30/117:15 p.m.SEA - YYZ

1 stop8h 24mAir Canada

Sat 14/127:45 p.m.YYZ - SEA

Nonstop5h 25mAir Canada

Deal found 20/11C$ 805

Sat 30/117:13 a.m.SEA - YYZ

Nonstop4h 42mAlaska Airlines

Sun 15/124:20 p.m.YYZ - SEA

Nonstop5h 19mAlaska Airlines

Deal found 20/11C$ 847

Sat 30/116:05 a.m.SEA - YYZ

Nonstop4h 45mUnited Airlines

Tue 17/1212:45 p.m.YYZ - SEA

1 stop15h 05mUnited Airlines

Deal found 20/11C$ 889

Sun 1/121:50 a.m.PDX - YYZ

1 stop17h 54mAmerican Airlines

Mon 9/125:14 p.m.YYZ - PDX

1 stop8h 38mAmerican Airlines

Deal found 20/11C$ 637

Sun 1/1210:29 p.m.PDX - YUL

2 stops35h 01mMultiple Airlines

Wed 4/126:00 a.m.YUL - PDX

1 stop7h 57mMultiple Airlines

Deal found 20/11C$ 848

Sun 1/121:15 p.m.SEA - YYZ

1 stop8h 25mWestJet

Sun 15/1210:35 p.m.YYZ - SEA

1 stop18h 46mWestJet

Deal found 20/11C$ 862

One-way flights from Washington to Ontario
Search for one-way flight options from Washington to Ontario. Find affordable one-way fares based on user searches. Data last updated 21 November 2024.

Wed 11/123:15 p.m.SEA - YYZ

2 stops11h 45mWestJet

Deal found 20/11C$ 171

Wed 4/127:16 p.m.PDX - YYZ

1 stop8h 30mMultiple Airlines

Deal found 20/11C$ 175

Mon 30/126:05 a.m.SEA - YYZ

Nonstop4h 45mUnited Airlines

Deal found 19/11C$ 179

Tue 11/29:07 p.m.PDX - YYZ

1 stop14h 58mAlaska Airlines

Deal found 20/11C$ 184

Sat 1/211:05 p.m.SEA - YYZ

1 stop9h 54mDelta

Deal found 21/11C$ 184

Thu 26/127:15 p.m.SEA - YYZ

1 stop7h 54mAir Canada

Deal found 20/11C$ 186

Tue 7/110:18 p.m.SEA - YYZ

1 stop9h 47mAmerican Airlines

Deal found 20/11C$ 194

Wed 4/124:00 p.m.SEA - YYZ

1 stop11h 46mMultiple Airlines

Deal found 19/11C$ 201

Wed 4/123:15 p.m.SEA - YOW

1 stop30h 31mWestJet

Deal found 20/11C$ 205

Thu 5/125:10 a.m.PDX - YYZ

1 stop7h 44mDelta

Deal found 20/11C$ 207

Thu 9/112:13 p.m.SEA - YUL

2 stops17h 47mMultiple Airlines

Deal found 20/11C$ 211

Wed 4/127:16 p.m.PDX - YTZ

2 stops23h 09mMultiple Airlines

Deal found 20/11C$ 218

Best time to book a flight from Washington to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Washington 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.

Travel insights for flights from Washington to Ontario

Get recent, data-driven insights about flights from Washington to Ontario including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from State of Washington to Region of Ontario (average of C$ 178). Flying from State of Washington to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 WA to ON?

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

Weekly flight availability from State of Washington to Region of Ontario

The most flights from USWA to CAON are scheduled on a Thursday (5 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Ontario by month

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

If weather is an important factor for your trip to Region of Ontario, 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 -6.0 C).

Reviews of airlines servicing Ontario

See what other customers who have flown with Alaska Airlines, Delta and WestJet from Washington to Ontario 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

9,458 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines

8.0

Very good

9,458 reviews

Alaska Airlines

8.0

Very good

9,458 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta

8.0

Very good

8,758 reviews

Alaska Airlines

8.0

Very good

9,458 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Porter Airlines

7.8

Good

286 reviews

Alaska Airlines

8.0

Very good

9,458 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Virgin Atlantic

7.5

Good

663 reviews

Alaska Airlines

8.0

Very good

9,458 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines

7.4

Good

9,172 reviews

Alaska Airlines

8.0

Very good

9,458 reviews

Check prices

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

What are the cheapest airlines to fly from State of Washington to Region of Ontario one-way?
The cheapest airlines for a one-way flight from State of Washington to Region of Ontario are WestJet (C$ 171), United Airlines (C$ 179), and Alaska Airlines (C$ 184).
Can I find deals for flights from Washington to Ontario that include hotel bookings?
Yes. In addition to deals on Washington to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Ontario.
Can I find deals for business class flights from Washington to Ontario?
Yes. Cheapflights offers flight deals from Washington to Ontario 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 State of Washington to Region of Ontario?
Currently, October is the cheapest month in which you can book a flight from State of Washington to Region of Ontario (average of C$ 178). Flying from State of Washington to Region of Ontario in July is currently the most expensive (average of C$ 258). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington to Ontario

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Complete your trip

Region of Ontario car rentals

Toronto Pearson Intl Airport car rentals

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Direct flights to Canada

Find a return flight route from Ontario

Washington to Ontario flights

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Portland to Ottawa flights

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Seattle to London flights

Walla Walla to Pierre Elliott Trudeau Intl flights

Pasco to Pierre Elliott Trudeau Intl flights

Bellingham to Pearson Intl flights

Top 3 airlines flying from Washington to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 228	AverageC$ 826	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Alaska Airlines	CheapestC$ 379	AverageC$ 661	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
United Airlines	CheapestC$ 485	AverageC$ 777	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Washington today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from Washington to Ontario by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to Ontario from Washington shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Washington to Ontario and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Washington to Ontario from C$ 171

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find flights from Washington to Ontario within your budget

Cheap flight deals from Washington to Ontario

Find flight deals from Washington to Ontario

Cheapest flights from Washington to OntarioExplore the most affordable flight options available from Washington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Explore the most affordable flight options available from Washington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Best time to book a flight from Washington to Ontario

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

Travel insights for flights from Washington to Ontario

Get recent, data-driven insights about flights from Washington to Ontario including ideal travel times, pricing trends, and more.

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

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

Find hourly flight availability from Washington to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 November 2024.

Weekly flight availability from State of Washington to Region of Ontario

Explore weekly flight availability from Washington to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 November 2024.

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

See what other customers who have flown with Alaska Airlines, Delta and WestJet from Washington to Ontario 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 Washington to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

How can I find direct flights from Washington to Ontario?

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

What is the cheapest month to book a flight from State of Washington to Region of 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 Washington to Ontario

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

Top 3 airlines flying from Washington to Ontario

Fly with Cheapflights

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Cheapest flights from Washington to Ontario
Explore the most affordable flight options available from Washington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.