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$108+ Cheap flights from Dulles Intl (IAD) to Ontario

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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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Cheap flight deals from Dulles Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Round-trip from

$236
(Flightnetwork)

One-way from

$108
(Mytrip)
From Washington, D.C. Dulles Intl to Ontario
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One-way flight from Washington, D.C. Dulles Intl to Ontario
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Find flight deals from Dulles Intl to Ontario

Cheapest flights from Dulles Intl to Ontario
Explore the most affordable flight options available from Dulles Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This Cheapflightsfares deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/301:45 pmIAD - YTZ
Nonstop1h 30mPorter Airlines
Mon 1/611:30 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 12/21$364
This Trip.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:00 amIAD - YUL
1 stop8h 15mPorter Airlines
Wed 1/86:55 amYUL - IAD
1 stop5h 54mPorter Airlines
Deal found 12/21$413
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2812:38 pmIAD - YYZ
Nonstop1h 40mUnited Airlines
Sat 1/117:40 pmYYZ - IAD
Nonstop1h 41mUnited Airlines
Deal found 12/21$415
This Air Canada deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3012:49 pmIAD - YYZ
1 stop7h 36mAir Canada
Fri 1/36:15 amYYZ - IAD
Nonstop1h 50mAir Canada
Deal found 12/21$463
This United deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:17 pmIAD - YYZ
Nonstop1h 40mMultiple Airlines
Sun 1/56:15 amYYZ - IAD
Nonstop1h 50mMultiple Airlines
Deal found 12/21$480
This Trip.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:00 amIAD - YOW
1 stop4h 11mPorter Airlines
Sun 2/28:35 amYOW - IAD
1 stop4h 14mPorter Airlines
Deal found 12/21$487
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/278:20 amIAD - YOW
1 stop11h 49mMultiple Airlines
Fri 1/38:35 amYOW - IAD
1 stop4h 24mMultiple Airlines
Deal found 12/21$527
This Mytrip deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/271:45 pmIAD - YUL
1 stop4h 15mMultiple Airlines
Thu 1/93:55 pmYUL - IAD
3 stops24h 20mMultiple Airlines
Deal found 12/21$533
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/278:20 amIAD - YTZ
2 stops14h 03mMultiple Airlines
Wed 1/111:30 amYTZ - IAD
Nonstop1h 29mMultiple Airlines
Deal found 12/21$536
This Priceline deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2612:30 pmIAD - YYZ
1 stop3h 44mWestJet
Tue 1/147:45 amYYZ - IAD
1 stop4h 06mWestJet
Deal found 12/20$546
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/295:10 pmIAD - YOW
Nonstop1h 44mUnited Airlines
Mon 2/35:50 pmYOW - IAD
1 stop4h 30mUnited Airlines
Deal found 12/21$625
This Booking.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/247:00 amIAD - YTZ
Nonstop1h 30mAir Transat
Thu 12/268:55 pmYTZ - IAD
Nonstop1h 29mAir Transat
Deal found 12/21$670

Find flights from Dulles Intl to Ontario within your budget

Customize your flight search to find flights from Dulles Intl 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 2,558,603 searches. Data last updated December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Mon 2/17

2:10 pm-3:40 pm

Nonstop1h 30m

Toronto Island

Tue 2/25

11:20 am-12:49 pm

Nonstop1h 29m

$236

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 2/22

2:35 pm-4:06 pm

Nonstop1h 31m

Toronto Pearson Intl

Tue 2/25

12:15 pm-1:51 pm

Nonstop1h 36m

$256

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 1/11

3:55 pm-9:50 pm

1 stop5h 55m

Toronto Island

Mon 1/13

11:20 am-12:49 pm

Nonstop1h 29m

$275

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Fri 2/14

2:10 pm-7:25 pm

1 stop5h 15m

Montreal Pierre Elliott Trudeau Intl

Sun 2/16

6:50 am-12:49 pm

1 stop5h 59m

$280

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sat 1/18

12:05 pm-5:14 pm

1 stop5h 09m

Toronto Pearson Intl

Sat 1/25

5:15 pm-10:36 pm

1 stop5h 21m

$296

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Fri 2/14

2:10 pm-6:34 pm

1 stop4h 24m

Ottawa

Mon 2/17

9:30 am-12:49 pm

1 stop3h 19m

$300

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 1/19

12:35 pm-5:29 pm

1 stop4h 54m

Toronto Pearson Intl

Sun 1/19

7:40 pm-9:21 pm

Nonstop1h 41m

$302

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 2/4

12:38 pm-2:18 pm

Nonstop1h 40m

Toronto Pearson Intl

Tue 2/11

10:00 am-11:41 am

Nonstop1h 41m

$304

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 2/4

8:15 am-9:58 am

Nonstop1h 43m

Toronto Pearson Intl

Tue 2/11

10:10 am-3:50 pm

1 stop5h 40m

$312

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Fri 1/10

12:31 pm-4:12 pm

1 stop3h 41m

Toronto Pearson Intl

Sun 1/12

6:30 am-1:46 pm

1 stop7h 16m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 54 results
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Best time to book a flight from Dulles Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Dulles Intl 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 Dulles Intl to Ontario

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

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario (average of $243). Flying from Washington, D.C. Dulles Intl Airport to Region of Ontario in July is currently the most expensive (average of $359). 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 IAD to ON?

Find hourly flight availability from Dulles Intl 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 December 22, 2024.

When flying from Washington, D.C. Dulles Intl Airport to Region of Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Region of Ontario

Explore weekly flight availability from Dulles Intl 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 December 22, 2024.

The most flights from IAD to CAON are scheduled on a Friday (19 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (17 on average).

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 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 December 22, 2024.
Peruse reviews from past customers who have flown with Air Canada, United Airlines and WestJet from Washington, D.C. to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,597 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,597 reviews
Delta
8.0
Very good
8,597 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines
7.9
Good
283 reviews
Delta
8.0
Very good
8,597 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat
7.8
Good
384 reviews
Delta
8.0
Very good
8,597 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,028 reviews
Delta
8.0
Very good
8,597 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,597 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Region of Ontario one-way?

    The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $108. However, be on the lookout for offers from Air Canada and Delta, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Region of Ontario for a low price.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Region of Ontario?

    The most popular flight routes from Washington, D.C. Dulles Intl Airport to Region of Ontario are Washington, D.C. Dulles Intl - Toronto Pearson Intl, Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl and Washington, D.C. Dulles Intl - Toronto Island.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Region of Ontario?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario consider choosing ANA (92%), Jazz (92%) or United Airlines (91%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Region of Ontario?

    On average you can expect to pay $1,363 for a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario. The cheapest flight overall is $112 while the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl) is currently priced at $244.

  • Can I find deals for flights from Dulles Intl to Ontario that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to Ontario?

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

  • Can I find deals for business class flights from Dulles Intl to Ontario?

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Region of Ontario (average of $243). Flying from Washington, D.C. Dulles Intl Airport to Region of Ontario in July is currently the most expensive (average of $359). 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.

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Alternative routes for Dulles Intl to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Baltimore to Victoria flights
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Reagan-National to St. John's flights
Reagan-National to Charlottetown flights
Baltimore to Charlottetown flights
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Top 5 airlines flying from Dulles Intl to Ontario

Discover the top 5 airlines that operate flights from Dulles Intl 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 2,558,603 searches. Data last updated December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$122Average$448FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$139Average$457FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$195Average$363FlexibilityNo cancel feeOn-time52%
Air TransatCheapest$250Average$329FlexibilityNo cancel feeOn-time50%
WestJetCheapest$311Average$478FlexibilityNo cancel feeOn-time60%
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