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Cheap flights from Washington, D.C. Dulles Intl Airport to Ontario from C$ 131

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — YYZ
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Dulles Intl to Ontario

Keep the following information in mind while searching for Dulles Intl to Ontario flight deals. Data was last updated 21 February 2025.

Round-trip from

C$ 266

One-way from

C$ 131

Popular in

August

Cheapest in

April

Average price

C$ 452

Good round-trip deal

C$ 347 or less

Good one-way deal

C$ 163 or less
Porter Airlines
  • Porter Airlines
  • 19/3-19/3
  • Nonstop
  • 2h 59m total
  • Washington, D.C. to Ontario
Search Deals
Air Transat
  • Air Transat
  • 1/4
  • Nonstop
  • 1h 30m total
  • Washington, D.C. to Ontario
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Ontario.
Search Deals
Price to beat on a 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 21 February 2025.

Wed 19/31:45 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
Wed 19/38:55 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 19/2C$ 266
Tue 8/47:00 a.m.IAD - YTZ
Nonstop1h 30mMultiple Airlines
Tue 8/48:55 p.m.YTZ - IAD
Nonstop1h 29mMultiple Airlines
Deal found 20/2C$ 294
Tue 8/412:40 p.m.IAD - YYZ
Nonstop1h 39mAir Canada
Tue 8/45:05 p.m.YYZ - IAD
1 stop4h 10mAir Canada
Deal found 20/2C$ 317
Wed 19/312:37 p.m.IAD - YYZ
Nonstop1h 41mMultiple Airlines
Wed 19/34:20 p.m.YYZ - IAD
1 stop5h 03mMultiple Airlines
Deal found 19/2C$ 328
Sun 6/41:53 p.m.IAD - YTZ
1 stop5h 57mAir Canada
Sun 13/410:25 a.m.YTZ - IAD
1 stop4h 48mAir Canada
Deal found 20/2C$ 347
Sat 26/47:00 a.m.IAD - YTZ
Nonstop1h 30mAir Transat
Sun 27/48:55 p.m.YTZ - IAD
Nonstop1h 29mAir Transat
Deal found 20/2C$ 357
Sun 25/58:22 a.m.IAD - YYZ
Nonstop1h 42mUnited Airlines
Sun 25/512:05 p.m.YYZ - IAD
1 stop4h 21mUnited Airlines
Deal found 19/2C$ 358
Mon 24/36:00 a.m.IAD - YYZ
1 stop5h 55mDelta
Thu 27/312:15 p.m.YYZ - IAD
1 stop7h 04mDelta
Deal found 20/2C$ 366
Wed 30/43:55 p.m.IAD - YUL
Nonstop1h 55mMultiple Airlines
Sat 3/510:45 a.m.YUL - IAD
1 stop4h 21mMultiple Airlines
Deal found 20/2C$ 376
Sat 5/44:07 p.m.IAD - YOW
1 stop6h 05mAir Canada
Sat 12/45:15 a.m.YOW - IAD
1 stop4h 26mAir Canada
Deal found 19/2C$ 379
Tue 8/47:00 a.m.IAD - YUL
1 stop8h 17mPorter Airlines
Wed 9/48:55 a.m.YUL - IAD
1 stop4h 04mPorter Airlines
Deal found 20/2C$ 382
Mon 7/43:30 p.m.IAD - YYZ
Nonstop1h 39mWestJet
Mon 14/412:10 p.m.YYZ - IAD
1 stop7h 43mWestJet
Deal found 20/2C$ 385

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 629,999 searches. Data last updated 21 February 2025.

Fly from

Dulles Intl

Fly to

Ontario

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 19/3

1:45 p.m.-3:15 p.m.

Nonstop1h 30m

Toronto Island

Wed 19/3

8:55 p.m.-10:24 p.m.

Nonstop1h 29m

C$ 266

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Tue 8/4

7:00 a.m.-8:30 a.m.

Nonstop1h 30m

Toronto Island

Tue 8/4

8:55 p.m.-10:24 p.m.

Nonstop1h 29m

C$ 294

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Tue 8/4

12:40 p.m.-2:19 p.m.

Nonstop1h 39m

Toronto Pearson Intl

Tue 8/4

5:05 p.m.-9:15 p.m.

1 stop4h 10m

C$ 317

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 19/3

12:37 p.m.-2:18 p.m.

Nonstop1h 41m

Toronto Pearson Intl

Wed 19/3

4:20 p.m.-9:23 p.m.

1 stop5h 03m

C$ 328

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sun 6/4

1:53 p.m.-7:50 p.m.

1 stop5h 57m

Toronto Island

Sun 13/4

10:25 a.m.-3:13 p.m.

1 stop4h 48m

C$ 347

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Sat 26/4

7:00 a.m.-8:30 a.m.

Nonstop1h 30m

Toronto Island

Sun 27/4

8:55 p.m.-10:24 p.m.

Nonstop1h 29m

C$ 357

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 25/5

8:22 a.m.-10:04 a.m.

Nonstop1h 42m

Toronto Pearson Intl

Sun 25/5

12:05 p.m.-4:26 p.m.

1 stop4h 21m

C$ 358

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Mon 24/3

6:00 a.m.-11:55 a.m.

1 stop5h 55m

Toronto Pearson Intl

Thu 27/3

12:15 p.m.-7:19 p.m.

1 stop7h 04m

C$ 366

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Wed 30/4

3:55 p.m.-5:50 p.m.

Nonstop1h 55m

Montreal Pierre Elliott Trudeau Intl

Sat 3/5

10:45 a.m.-3:06 p.m.

1 stop4h 21m

C$ 376

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

Tue 8/4

7:00 a.m.-3:17 p.m.

1 stop8h 17m

Montreal Pierre Elliott Trudeau Intl

Wed 9/4

8:55 a.m.-12:59 p.m.

1 stop4h 04m

C$ 382

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 57 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 C$ 167). Flying from Washington, D.C. Dulles Intl Airport 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 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 21 February 2025.

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

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 21 February 2025.

The most flights from IAD to CAON are scheduled on a Wednesday (19 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (13 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 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 21 February 2025.
See what other customers who have flown with Delta, Porter Airlines and Air Transat from Washington, D.C. to Ontario have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

Air Transat
7.8
Good
380 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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
8,219 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 Air Transat, with whom users have recently found tickets for as low as C$ 131. However, be on the lookout for offers from Porter Airlines and Air Canada, 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?

    When deciding which route to take from Washington, D.C. Dulles Intl Airport to Region of Ontario consider Washington, D.C. Dulles Intl - Toronto Pearson Intl, Washington, D.C. Dulles Intl - Montreal Pierre Elliott Trudeau Intl or Washington, D.C. Dulles Intl - Toronto Island as they are the most popular.

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

    Before booking your flight to Region of Ontario from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: ANA (79%), Copa Airlines (78%), Air Canada( 77%).

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

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Region of Ontario? While on average our users pay C$ 700, our data indicates the cheapest price to be C$ 127. The most popular route (Washington, D.C. Dulles Intl - Toronto Pearson Intl), is priced around C$ 320.

  • 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 C$ 167). Flying from Washington, D.C. Dulles Intl Airport 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 Dulles Intl to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Pierre Elliott Trudeau Intl flights
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Baltimore to Saskatoon flights
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Dulles Intl to London flights

Top 3 airlines flying from Dulles Intl to Ontario

Discover the top 3 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 629,999 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 183AverageC$ 533FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 194AverageC$ 455FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Porter AirlinesCheapestC$ 287AverageC$ 547FlexibilityNo cancel feeOn-time52%
Search Porter 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 Dulles Intl to Ontario?

Cheapflights makes it easy to find Dulles Intl to Ontario 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 Dulles Intl to Ontario?

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

Yes, we can. To see specific flights from Dulles Intl to Ontario 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 Dulles Intl to Ontario become cheaper?

Not ready to book yet? You can track prices for flights from Dulles Intl to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

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