What are the cheapest airlines to fly from District of Columbia to Toronto one-way?

The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from Air Canada and Air Transat, as they are both options that can get you from District of Columbia to Toronto for a low price.

In terms of precipitation, rainfall in Toronto 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 Toronto when rainfall is around 2.0 in.

If weather is an important factor for your trip to Toronto, 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).

What are the most popular routes from District of Columbia to Toronto?

When deciding which route to take from District of Columbia to Toronto consider Washington, D.C. Dulles Intl - Toronto Pearson Intl, Washington, D.C. Reagan-National - Toronto Pearson Intl or Washington, D.C. Dulles Intl - Toronto Island as they are the most popular.

What are the cheapest flights from District of Columbia to Toronto?

On average you can expect to pay $1,406 for a flight from District of Columbia to Toronto. The cheapest flight overall is $872 while the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl) is currently priced at $216.

What are the most popular airlines that fly from District of Columbia to Toronto?

Before booking your flight from District of Columbia to Toronto check out the most popular airlines for this route: Air Canada, Delta or Porter Airlines.

How far in advance should I book a flight from District of Columbia to Toronto?

Travelers have found it’s best to book a flight 37 days in advance to save up to 128% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 37 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from District of Columbia to Toronto 1-2 weeks in advance for as low as $292, or $617 for flights within the next 24 hours.

What is the cheapest month to fly from District of Columbia to Toronto?

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, June can be a great choice for travel to Toronto. Flights to Toronto from District of Columbia in June are about $283 on average during June, but can be found for as low as $132.

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

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

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

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

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

Yes. Cheapflights offers flight deals from District of Columbia to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$75+ Flights from District of Columbia to Toronto

Q: How much does it cost to fly round-trip from District of Columbia to Toronto?

Airfare is below average for this route at the moment. District of Columbia to Toronto flights typically cost between $302 and $528 in September. The cheapest round-trip price found within the last 3 days was $218 on Multiple Airlines (Sep 13-Sep 20).

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Cheap flight deals from District of Columbia to Toronto

Round-trip from	$190 (Kiwi.com)
One-way from	$75 (Trip.com)
Popular in	November
Cheapest in	June
Average price	$304
Good round-trip deal	$217 or less
Good one-way deal	$85 or less

From District of Columbia to Toronto (YTO)

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One-way flight from District of Columbia to Toronto (YTO)

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Highest demand for flights based on searches. 4% potential increase in price ($13 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Price to beat on a round-trip flight from District of Columbia to Toronto (YTO).

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Price to beat on a one-way flight from District of Columbia to Toronto (YTO).

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Find flight deals from District of Columbia to Toronto

Cheapest flights from District of Columbia to Toronto
Explore the most affordable flight options available from District of Columbia to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Thu 9/44:20 pmIAD - YTZ

Nonstop1h 33mPorter Airlines

Sun 9/78:45 amYTZ - IAD

Nonstop1h 31mPorter Airlines

Deal found 7/31

$190

Thu 9/46:00 amDCA - YYZ

1 stop5h 39mAir Canada

Sun 9/76:30 amYYZ - DCA

1 stop5h 38mAir Canada

Deal found 7/30

$212

Wed 8/2712:55 pmDCA - YTZ

1 stop5h 50mAir Canada

Sat 8/303:25 pmYTZ - DCA

1 stop6h 23mAir Canada

Deal found 7/31

$214

Wed 9/32:25 pmIAD - YYZ

Nonstop1h 32mAir Canada

Sat 10/2512:10 pmYYZ - IAD

Nonstop1h 28mAir Canada

Deal found 7/29

$217

Wed 8/279:35 amIAD - YTZ

1 stop5h 11mMultiple Airlines

Fri 8/291:25 pmYTZ - IAD

Nonstop1h 31mMultiple Airlines

Deal found 7/31

$218

Wed 9/35:30 pmDCA - YYZ

1 stop5h 28mDelta

Fri 10/243:35 pmYYZ - DCA

1 stop7h 23mDelta

Deal found 7/29

$242

Wed 9/36:15 pmIAD - YYZ

1 stop4h 43mDelta

Thu 10/236:00 amYYZ - IAD

1 stop5h 57mDelta

Deal found 7/29

$242

Tue 8/199:35 amIAD - YTZ

1 stop5h 11mAir Canada

Fri 8/293:25 pmYTZ - IAD

1 stop5h 36mAir Canada

Deal found 7/29

$247

Sun 9/2112:41 pmIAD - YYZ

Nonstop1h 38mUnited Airlines

Sun 9/216:00 pmYYZ - IAD

1 stop4h 39mUnited Airlines

Deal found 7/31

$254

Sat 9/135:22 pmIAD - YYZ

Nonstop1h 43mLufthansa

Sat 9/207:00 amYYZ - IAD

1 stop4h 55mLufthansa

Deal found 7/30

$273

Thu 9/43:55 pmIAD - YYZ

1 stop8h 03mMultiple Airlines

Sun 9/78:10 amYYZ - IAD

Nonstop1h 28mMultiple Airlines

Deal found 7/31

$285

Fri 9/196:45 pmIAD - YHM

1 stop29h 55mWestJet

Mon 9/226:00 amYHM - IAD

1 stop11h 50mWestJet

Deal found 7/30

$468

Best flights from District of Columbia to Toronto
Discover carefully curated flight deals from District of Columbia to Toronto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2025.

Thu 9/44:20 pmIAD - YTZ

Nonstop1h 33mPorter Airlines

Sun 9/78:45 amYTZ - IAD

Nonstop1h 31mPorter Airlines

Deal found 7/31

$190

Thu 9/46:00 amDCA - YYZ

1 stop5h 39mAir Canada

Sun 9/76:30 amYYZ - DCA

1 stop5h 38mAir Canada

Deal found 7/30

$212

Wed 8/279:35 amIAD - YTZ

1 stop5h 11mMultiple Airlines

Fri 8/291:25 pmYTZ - IAD

Nonstop1h 31mMultiple Airlines

Deal found 7/31

$218

Wed 9/35:30 pmDCA - YYZ

1 stop5h 28mDelta

Fri 10/243:35 pmYYZ - DCA

1 stop7h 23mDelta

Deal found 7/29

$242

Sun 9/2112:41 pmIAD - YYZ

Nonstop1h 38mUnited Airlines

Sun 9/216:00 pmYYZ - IAD

1 stop4h 39mUnited Airlines

Deal found 7/31

$254

Thu 9/112:54 pmDCA - YYZ

Nonstop1h 39mAmerican Airlines

Sat 9/205:17 pmYYZ - DCA

Nonstop1h 42mAmerican Airlines

Deal found 7/30

$262

Sat 9/135:22 pmIAD - YYZ

Nonstop1h 43mLufthansa

Sat 9/207:00 amYYZ - IAD

1 stop4h 55mLufthansa

Deal found 7/30

$273

Wed 8/2712:55 pmDCA - YTZ

1 stop5h 50mAir Canada

Sat 8/303:25 pmYTZ - DCA

1 stop6h 23mAir Canada

Deal found 7/31

$214

Fri 9/196:45 pmIAD - YHM

1 stop29h 55mWestJet

Mon 9/226:00 amYHM - IAD

1 stop11h 50mWestJet

Deal found 7/30

$468

Wed 9/32:25 pmIAD - YYZ

Nonstop1h 32mAir Canada

Sat 10/2512:10 pmYYZ - IAD

Nonstop1h 28mAir Canada

Deal found 7/29

$217

Wed 9/36:00 amIAD - YYZ

1 stop7h 32mDelta

Sat 10/259:45 amYYZ - IAD

1 stop6h 44mDelta

Deal found 7/29

$242

Thu 9/43:55 pmIAD - YYZ

1 stop8h 03mMultiple Airlines

Sun 9/78:10 amYYZ - IAD

Nonstop1h 28mMultiple Airlines

Deal found 7/31

$285

Last-minute flights from District of Columbia to Toronto
Discover last-minute flight deals from District of Columbia to Toronto. Data last updated August 1, 2025 and is based on user searches.

Fri 8/86:10 amDCA - YYZ

1 stop4h 06mAmerican Airlines

Tue 8/125:18 pmYYZ - DCA

Nonstop1h 41mAmerican Airlines

Deal found 7/29

$435

Sat 8/95:28 pmDCA - YYZ

1 stop5h 30mDelta

Tue 8/1212:14 pmYYZ - DCA

1 stop6h 38mDelta

Deal found 7/30

$430

Sat 8/96:00 amIAD - YYZ

1 stop8h 45mDelta

Tue 8/126:04 amYYZ - IAD

1 stop5h 58mDelta

Deal found 7/29

$430

Sat 8/91:00 pmDCA - YYZ

1 stop4h 19mUnited Airlines

Fri 8/151:00 pmYYZ - DCA

1 stop9h 42mUnited Airlines

Deal found 7/30

$472

Sun 8/1011:35 amIAD - YTZ

Nonstop1h 33mPorter Airlines

Fri 8/221:25 pmYTZ - IAD

Nonstop1h 31mPorter Airlines

Deal found 7/31

$338

Sun 8/1011:35 amIAD - YTZ

Nonstop1h 33mMultiple Airlines

Fri 8/151:25 pmYTZ - IAD

Nonstop1h 31mMultiple Airlines

Deal found 7/30

$355

Sun 8/102:25 pmIAD - YYZ

Nonstop1h 36mAir Canada

Thu 8/2112:15 pmYYZ - IAD

Nonstop1h 27mAir Canada

Deal found 7/30

$356

Sun 8/106:00 amDCA - YTZ

1 stop5h 46mAir Canada

Fri 8/225:25 pmYTZ - DCA

1 stop4h 23mAir Canada

Deal found 7/31

$391

Sun 8/108:35 amIAD - YYZ

1 stop5h 12mUnited Airlines

Thu 8/2110:05 amYYZ - IAD

Nonstop1h 40mUnited Airlines

Deal found 7/30

$445

Sun 8/102:25 pmIAD - YYZ

Nonstop1h 36mMultiple Airlines

Sat 8/164:00 pmYYZ - IAD

2 stops18h 14mMultiple Airlines

Deal found 7/30

$456

Mon 8/116:50 pmDCA - YYZ

Nonstop1h 34mAir Canada

Thu 8/147:25 amYYZ - DCA

Nonstop1h 32mAir Canada

Deal found 7/31

$368

Mon 8/119:35 amIAD - YTZ

1 stop5h 11mAir Canada

Tue 8/263:25 pmYTZ - IAD

1 stop5h 36mAir Canada

Deal found 7/31

$391

One-way flights from District of Columbia to Toronto
Search for one-way flight options from District of Columbia to Toronto. Find affordable one-way fares based on user searches. Data last updated August 1, 2025.

Thu 9/1811:35 amIAD - YTZ

Nonstop1h 33mPorter Airlines

Deal found 7/29

$75

Sat 9/2711:00 amDCA - YYZ

Nonstop1h 32mAir Canada

Deal found 7/29

$84

Wed 9/32:25 pmIAD - YYZ

Nonstop1h 32mAir Canada

Deal found 7/29

$84

Fri 9/1211:35 amIAD - YTZ

Nonstop1h 33mAir Transat

Deal found 7/29

$88

Sat 9/136:00 amDCA - YYZ

1 stop3h 22mDelta

Deal found 7/29

$93

Sat 9/66:00 amIAD - YYZ

1 stop5h 20mDelta

Deal found 7/29

$93

Sun 8/319:40 amDCA - YTZ

1 stop5h 06mAir Canada

Deal found 7/30

$97

Mon 10/69:35 amIAD - YTZ

1 stop5h 10mAir Canada

Deal found 7/31

$99

Fri 10/310:08 amDCA - YYZ

Nonstop1h 51mAmerican Airlines

Deal found 7/30

$106

Sat 9/138:28 amIAD - YYZ

Nonstop1h 36mUnited Airlines

Deal found 7/30

$106

Sat 10/258:18 pmIAD - YYZ

1 stop18h 02mMultiple Airlines

Deal found 7/31

$107

Sat 9/1311:00 amDCA - YYZ

Nonstop1h 32mUnited Airlines

Deal found 7/30

$133

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Toronto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Thu 9/4

4:20 pm-5:53 pm

Nonstop1h 33m

Toronto Island

Sun 9/7

8:45 am-10:16 am

Nonstop1h 31m

$190

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 9/4

6:00 am-11:39 am

1 stop5h 39m

Toronto Pearson Intl

Sun 9/7

6:30 am-12:08 pm

1 stop5h 38m

$212

Washington, D.C.Toronto

DCA - YTZ

DCAYTZ

Washington, D.C. Reagan-National

Wed 8/27

12:55 pm-6:45 pm

1 stop5h 50m

Toronto Island

Sat 8/30

3:25 pm-9:48 pm

1 stop6h 23m

$214

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 9/3

2:25 pm-3:57 pm

Nonstop1h 32m

Toronto Pearson Intl

Sat 10/25

12:10 pm-1:38 pm

Nonstop1h 28m

$217

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Wed 8/27

9:35 am-2:46 pm

1 stop5h 11m

Toronto Island

Fri 8/29

1:25 pm-2:56 pm

Nonstop1h 31m

$218

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Wed 9/3

5:30 pm-10:58 pm

1 stop5h 28m

Toronto Pearson Intl

Fri 10/24

3:35 pm-10:58 pm

1 stop7h 23m

$242

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Wed 9/3

6:00 am-1:32 pm

1 stop7h 32m

Toronto Pearson Intl

Sat 10/25

9:45 am-4:29 pm

1 stop6h 44m

$242

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

Tue 8/19

9:35 am-2:46 pm

1 stop5h 11m

Toronto Island

Fri 8/29

3:25 pm-9:01 pm

1 stop5h 36m

$247

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

Sun 9/21

12:41 pm-2:19 pm

Nonstop1h 38m

Toronto Pearson Intl

Sun 9/21

6:00 pm-10:39 pm

1 stop4h 39m

$254

Washington, D.C.Toronto

DCA - YYZ

DCAYYZ

Washington, D.C. Reagan-National

Thu 9/11

2:54 pm-4:33 pm

Nonstop1h 39m

Toronto Pearson Intl

Sat 9/20

5:17 pm-6:59 pm

Nonstop1h 42m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 36 results

Best time to book a flight from District of Columbia to Toronto

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

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

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Toronto (average of $243). Flying from District of Columbia to Toronto in August is currently the most expensive (average of $348). 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 DC to YTO?

When flying from District of Columbia to Toronto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from District of Columbia to Toronto?

Reviews of airlines servicing Toronto

Read through reviews of airlines operating flights from District of Columbia to Toronto, such as Porter Airlines, Delta, and Air Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

318 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

Porter Airlines

8.0

Very good

318 reviews

Porter Airlines

8.0

Very good

318 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

Delta

8.0

Very good

7,981 reviews

Porter Airlines

8.0

Very good

318 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

Air Transat

7.7

Good

424 reviews

Porter Airlines

8.0

Very good

318 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

United Airlines

7.4

Good

8,900 reviews

Porter Airlines

8.0

Very good

318 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

American Airlines

7.2

Good

10,000 reviews

Porter Airlines

8.0

Very good

318 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Jul 2025

LIS - YYZ

Related info for your journey

What are the cheapest airlines to fly from District of Columbia to Toronto one-way?
The cheapest airline one-way is Porter Airlines, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from Air Canada and Air Transat, as they are both options that can get you from District of Columbia to Toronto for a low price.
What are the most popular routes from District of Columbia to Toronto?
When deciding which route to take from District of Columbia to Toronto consider Washington, D.C. Dulles Intl - Toronto Pearson Intl, Washington, D.C. Reagan-National - Toronto Pearson Intl or Washington, D.C. Dulles Intl - Toronto Island as they are the most popular.
What are the cheapest flights from District of Columbia to Toronto?
On average you can expect to pay $1,406 for a flight from District of Columbia to Toronto. The cheapest flight overall is $872 while the most popular route, (Washington, D.C. Dulles Intl - Toronto Pearson Intl) is currently priced at $216.
Can I find deals for flights from District of Columbia to Toronto that include hotel bookings?
Yes. In addition to deals on District of Columbia to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Toronto?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Toronto.
Can I find deals for business class flights from District of Columbia to Toronto?
Yes. Cheapflights offers flight deals from District of Columbia to Toronto 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 District of Columbia to Toronto?
Currently, January is the cheapest month in which you can book a flight from District of Columbia to Toronto (average of $243). Flying from District of Columbia to Toronto in August is currently the most expensive (average of $348). 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

Top 7 airlines flying from District of Columbia to Toronto

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	Cheapest$103	Average$308	FlexibilityNo cancel fee	On-time52%
Air Canada	Cheapest$118	Average$330	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$132	Average$329	FlexibilityNo cancel fee	On-time69%
Air Transat	Cheapest$176	Average$269	FlexibilityNo cancel fee	On-time50%
American Airlines	Cheapest$220	Average$372	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$242	Average$322	FlexibilityNo cancel fee	On-timeN/A
WestJet	Cheapest$278	Average$542	FlexibilityNo cancel fee	On-time60%

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$75+ Cheap flights from District of Columbia to Toronto (YTO)

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia to Toronto with Cheapflights

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Cheap flight deals from District of Columbia to Toronto

Keep the following information in mind while searching for District of Columbia to Toronto flight deals. Data was last updated August 1, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from District of Columbia to Toronto

Cheapest flights from District of Columbia to TorontoExplore the most affordable flight options available from District of Columbia to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Explore the most affordable flight options available from District of Columbia to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Toronto that are best for you.

Best time to book a flight from District of Columbia to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from District of Columbia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Toronto

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

What is the cheapest time of day to fly from DC to YTO?

Find hourly flight availability from District of Columbia to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2025.

How much does it cost to fly round-trip from District of Columbia to Toronto?

Reviews of airlines servicing Toronto

Read through reviews of airlines operating flights from District of Columbia to Toronto, such as Porter Airlines, Delta, and Air Transat. You can also see how each airline stacks up 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 District of Columbia to Toronto. 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 District of Columbia to Toronto one-way?

What are the most popular routes from District of Columbia to Toronto?

What are the cheapest flights from District of Columbia to Toronto?

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for District of Columbia to Toronto

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

Top 7 airlines flying from District of Columbia to Toronto

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Cheapest flights from District of Columbia to Toronto
Explore the most affordable flight options available from District of Columbia to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.