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District of Columbia

$124+ Cheap flights from Ontario to District of Columbia

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — IAD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to District of Columbia

Keep the following information in mind while searching for Ontario to District of Columbia flight deals. Data was last updated September 15, 2025.

Round-trip from

$185
(SmartFares)

One-way from

$124
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$236

Good round-trip deal

$193 or less

Good one-way deal

$126 or less
From Ontario to District of Columbia
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One-way flight from Ontario to District of Columbia
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Highest demand for flights based on searches. 6% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Ontario to District of Columbia.
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Price to beat on a one-way flight from Ontario to District of Columbia.
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Find flight deals from Ontario to District of Columbia

Cheapest flights from Ontario to District of Columbia
Explore the most affordable flight options available from Ontario to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This SmartFares deal was found by Cheapflights users on 9/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Mon 10/2011:35 amIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 9/14$185
This Booking.com deal was found by Cheapflights users on 9/13. 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 10/288:55 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Tue 11/411:40 amIAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 9/13$189
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 10/2611:40 amIAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 9/13$190
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sat 10/41:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 10/511:35 amIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 9/13$192
This Trip.com deal was found by Cheapflights users on 9/13. 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 10/288:15 amYYZ - DCA
1 stop4h 04mAir Canada
Tue 11/46:50 pmDCA - YYZ
Nonstop1h 37mAir Canada
Deal found 9/13$195
This SmartFares deal was found by Cheapflights users on 9/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Fri 10/244:20 pmIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 9/12$195
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Sat 10/46:30 amYYZ - DCA
1 stop5h 38mAir Canada
Sat 10/116:50 pmDCA - YYZ
Nonstop1h 32mAir Canada
Deal found 9/13$196
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Tue 10/288:55 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Mon 11/311:40 amIAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 9/13$197
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Sun 10/128:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 10/1911:35 amIAD - YTZ
Nonstop1h 33mPorter Airlines
Deal found 9/14$198
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/238:45 amYTZ - IAD
Nonstop1h 31mPorter Airlines
Wed 11/511:40 amIAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 9/13$199
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/251:35 pmYTZ - IAD
Nonstop1h 31mPorter Airlines
Sun 10/2611:40 amIAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 9/14$200
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sun 11/238:55 amYTZ - IAD
Nonstop1h 29mPorter Airlines
Tue 12/211:40 amIAD - YTZ
Nonstop1h 30mPorter Airlines
Deal found 9/13$201

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to District of Columbia 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 September 15, 2025.
Use the filters below to find and compare flights from Ontario to District of Columbia that are best for you.

Fly from

Ontario

Fly to

District of Columbia

Route

Depart

Return

Price

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 10/18

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 10/19

11:35 am-1:08 pm

Nonstop1h 33m

$185

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 11/27

8:55 am-10:24 am

Nonstop1h 29m

Washington, D.C. Dulles Intl

Wed 12/3

11:40 am-1:10 pm

Nonstop1h 30m

$192

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 10/4

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 10/5

11:35 am-1:08 pm

Nonstop1h 33m

$193

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 10/25

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sun 10/26

6:30 pm-8:00 pm

Nonstop1h 30m

$194

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Sat 10/25

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Mon 10/27

6:30 pm-8:00 pm

Nonstop1h 30m

$194

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Tue 10/21

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Fri 10/24

4:20 pm-5:53 pm

Nonstop1h 33m

$194

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Fri 10/17

8:45 am-10:16 am

Nonstop1h 31m

Washington, D.C. Dulles Intl

Tue 10/21

4:20 pm-5:53 pm

Nonstop1h 33m

$194

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Wed 10/15

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Thu 10/16

11:35 am-1:08 pm

Nonstop1h 33m

$195

TorontoWashington, D.C.

YTZ - IAD

YTZIAD

Toronto Island

Thu 10/9

1:35 pm-3:06 pm

Nonstop1h 31m

Washington, D.C. Dulles Intl

Sat 10/11

4:20 pm-5:53 pm

Nonstop1h 33m

$195

TorontoWashington, D.C.

YTZ - DCA

YTZDCA

Toronto Island

Sat 10/4

5:25 pm-9:51 pm

1 stop4h 26m

Washington, D.C. Reagan-National

Sun 10/5

12:55 pm-6:46 pm

1 stop5h 51m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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 District of Columbia

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

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to District of Columbia (average of $292). Flying from Region of Ontario to District of Columbia in April is currently the most expensive (average of $337). 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 DC?

Find hourly flight availability from Ontario to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Region of Ontario to District of Columbia, 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 Region of Ontario to District of Columbia

Explore weekly flight availability from Ontario to District of Columbia. 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 September 15, 2025.

The most flights from CAON to USDC are scheduled on a Thursday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated September 15, 2025.
Get a feel of what it's like to fly with Porter Airlines, Air Transat, and United Airlines from Ontario to District of Columbia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
7.9
Good
363 reviews

Food

7.6

Overall

7.9

Comfort

7.9

Crew

8.6

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Porter Airlines
7.9
Good
363 reviews
Porter Airlines
7.9
Good
363 reviews

Food

7.6

Overall

7.9

Comfort

7.9

Crew

8.6

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Transat
7.7
Good
438 reviews
Porter Airlines
7.9
Good
363 reviews

Food

7.6

Overall

7.9

Comfort

7.9

Crew

8.6

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
United Airlines
7.4
Good
8,931 reviews
Porter Airlines
7.9
Good
363 reviews

Food

7.6

Overall

7.9

Comfort

7.9

Crew

8.6

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews

Food

7.6

Overall

7.9

Comfort

7.9

Crew

8.6

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.
Air Canada
7.1
Good
10,000 reviews
Porter Airlines
7.9
Good
363 reviews

Food

7.6

Overall

7.9

Comfort

7.9

Crew

8.6

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Sep 2025

YYZ - OPO

Very disappointing, booked with Porter airlines and changed to Air Transit last minute. Old plane, cramped seating, even the aisle was the narrowest I’ve ever seen. Very uncomfortable flight. Full meal at 130 am and only a small piece of banana bread in the morning… should be opposite.

Related info for your journey

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

  • How long is the flight from Region of Ontario to District of Columbia?

    Departing from Region of Ontario to District of Columbia will take you 1h 31m. There are 339 mi between Region of Ontario and District of Columbia. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Region of Ontario to District of Columbia one-way?

    For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as $124. Users have also found prices from $133 and $135 on Air Canada and United Airlines, respectively.

  • Can I find deals for flights from Ontario to District of Columbia that include hotel bookings?

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

  • How can I find direct flights from Ontario to District of Columbia?

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

  • Can I find deals for business class flights from Ontario to District of Columbia?

    Yes. Cheapflights offers flight deals from Ontario to District of Columbia 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 District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Region of Ontario to District of Columbia (average of $292). Flying from Region of Ontario to District of Columbia in April is currently the most expensive (average of $337). 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 Ontario to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Ontario to District of Columbia

Discover the top 6 airlines that operate flights from Ontario to District of Columbia. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$158Average$363FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$174Average$322FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$184Average$333FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$213Average$349FlexibilityNo cancel feeOn-time71%
DeltaCheapest$221Average$368FlexibilityNo cancel feeOn-timeN/A
WestJetCheapest$290Average$361FlexibilityNo cancel feeOn-time60%

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