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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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YYZ
5 Nov — 12 Nov1
1 adult

Find flights from Washington to Ontario within your budget

Customize your flight search to find flights from Washington to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 527,020 searches. Data last updated 31 October 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 4/12

4:00 p.m.-4:35 p.m.

1 stop21h 35m

C$ 171

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 1/2

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

Nonstop4h 38m

C$ 178

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 1/2

11:05 p.m.-9:03 a.m.

1 stop6h 58m

C$ 192

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Mon 30/12

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

Nonstop4h 45m

C$ 193

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 31/12

3:05 p.m.-12:57 a.m.

1 stop6h 52m

C$ 200

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sun 29/12

12:31 a.m.-5:40 p.m.

1 stop14h 09m

C$ 207

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 13/12

3:15 p.m.-12:46 a.m.

1 stop30h 31m

C$ 227

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Wed 20/11

5:15 a.m.-6:46 a.m.

1 stop22h 31m

C$ 174

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Sun 15/12

5:00 a.m.-11:34 p.m.

2 stops15h 34m

C$ 196

PortlandToronto

PDX - YYZ

PDXYYZ

Portland

Sat 23/11

6:59 p.m.-2:55 p.m.

1 stop16h 56m

C$ 198

Flights are sorted by cheapest first

Deals found on 31/10

Showing 1-10 of 60 results
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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 31 October 2024.

Wed 4/124:00 p.m.SEA - YYZ
1 stop10h 42mMultiple Airlines
Wed 11/128:00 p.m.YYZ - SEA
1 stop15h 57mMultiple Airlines
Deal found 30/10C$ 358
Wed 4/123:15 p.m.SEA - YYZ
2 stops11h 45mWestJet
Wed 11/127:55 a.m.YYZ - SEA
1 stop9h 26mWestJet
Deal found 30/10C$ 385
Sat 7/127:22 a.m.SEA - YYZ
Nonstop4h 33mAlaska Airlines
Fri 13/124:20 p.m.YYZ - SEA
Nonstop5h 19mAlaska Airlines
Deal found 29/10C$ 399
Mon 25/115:28 p.m.SEA - YUL
1 stop20h 07mMultiple Airlines
Tue 3/125:35 p.m.YUL - SEA
1 stop24h 18mMultiple Airlines
Deal found 30/10C$ 405
Mon 2/129:20 p.m.PDX - YUL
1 stop16h 15mMultiple Airlines
Fri 6/126:45 a.m.YUL - PDX
2 stops18h 42mMultiple Airlines
Deal found 31/10C$ 426
Thu 5/125:00 a.m.PDX - YYZ
1 stop21h 42mMultiple Airlines
Tue 10/1211:25 a.m.YYZ - PDX
1 stop12h 03mMultiple Airlines
Deal found 31/10C$ 441
Fri 29/116:05 a.m.SEA - YYZ
Nonstop4h 45mAir Canada
Mon 2/127:15 p.m.YYZ - SEA
Nonstop5h 25mAir Canada
Deal found 30/10C$ 454
Mon 18/117:33 p.m.PDX - YTZ
2 stops22h 52mMultiple Airlines
Fri 22/114:10 p.m.YTZ - PDX
2 stops11h 41mMultiple Airlines
Deal found 31/10C$ 458
Tue 26/115:30 a.m.SEA - YYZ
1 stop7h 24mDelta
Tue 10/126:00 a.m.YYZ - SEA
1 stop7h 53mDelta
Deal found 30/10C$ 459
Wed 20/118:28 p.m.SEA - YOW
2 stops38h 52mMultiple Airlines
Thu 28/116:15 a.m.YOW - SEA
1 stop11h 06mMultiple Airlines
Deal found 31/10C$ 462
Thu 28/118:05 a.m.SEA - YYZ
1 stop7h 52mUnited Airlines
Thu 5/127:15 p.m.YYZ - SEA
Nonstop5h 25mUnited Airlines
Deal found 31/10C$ 467
Thu 5/125:10 a.m.PDX - YYZ
1 stop7h 44mDelta
Tue 10/125:30 p.m.YYZ - PDX
1 stop7h 33mDelta
Deal found 30/10C$ 469

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?

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 31 October 2024.

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.

Rainfall in Ontario by month

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

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

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 31 October 2024.
See what other customers who have flown with United Airlines, Delta and American Airlines 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.
8.0
Very good
9,420 reviews

Boarding

8.2

Food

7.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

8.0
Very good
9,420 reviews
8.0
Very good
9,420 reviews

Boarding

8.2

Food

7.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

8.0
Very good
8,835 reviews
8.0
Very good
9,420 reviews

Boarding

8.2

Food

7.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

7.4
Good
9,240 reviews
8.0
Very good
9,420 reviews

Boarding

8.2

Food

7.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

7.3
Good
2,804 reviews
8.0
Very good
9,420 reviews

Boarding

8.2

Food

7.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

7.2
Good
10,000 reviews
8.0
Very good
9,420 reviews

Boarding

8.2

Food

7.2

Overall

8.0

Entertainment

7.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

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

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?

    The cheapest airlines for a one-way flight from State of Washington to Region of Ontario are Alaska Airlines (C$ 178), Delta (C$ 192), and United Airlines (C$ 193).

  • 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

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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

Discover the top 3 airlines that operate flights from Washington to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 527,020 searches. Data last updated 31 October 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 378AverageC$ 661FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air CanadaCheapestC$ 526AverageC$ 897FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 538AverageC$ 808FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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 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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