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C$ 108+ Cheap flights from Washington, D.C. Dulles Intl Airport

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — YUL
11 ene. — 18 ene.1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Dulles Intl

Discover essential information about flights departing from Dulles Intl, including flight schedules, destinations, airlines operating at the Dulles Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 12 diciembre 2025.

Cheapest airline

Air Canada

Good round-trip deal

C$ 272 or less

Good one-way deal

C$ 98 or less
On average, Air Canada currently has the cheapest one-way flight from Washington, D.C. Dulles Intl (avg. price of C$ 378).
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl.
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Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl
Explore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 12 diciembre 2025.

jue. 23/411:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
dom. 26/43:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 10/12C$ 294
jue. 8/19:00 a.m.IAD - YYZ
Nonstop1h 29mAir Canada
lun. 12/16:55 p.m.YYZ - IAD
Nonstop1h 31mAir Canada
Deal found 11/12C$ 294
vie. 13/311:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
dom. 15/38:55 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 10/12C$ 295
mié. 7/111:35 a.m.IAD - YTZ
Nonstop1h 34mMultiple Airlines
jue. 8/18:50 a.m.YTZ - IAD
Nonstop1h 29mMultiple Airlines
Deal found 11/12C$ 297
dom. 25/111:35 a.m.IAD - YTZ
Nonstop1h 34mMultiple Airlines
dom. 1/28:50 a.m.YTZ - IAD
Nonstop1h 32mMultiple Airlines
Deal found 10/12C$ 299
jue. 12/26:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
lun. 23/28:50 a.m.YTZ - IAD
Nonstop1h 32mPorter Airlines
Deal found 10/12C$ 301
jue. 26/211:40 a.m.IAD - YTZ
Nonstop1h 30mMultiple Airlines
dom. 1/33:45 p.m.YTZ - IAD
Nonstop1h 29mMultiple Airlines
Deal found 11/12C$ 302
lun. 5/111:35 a.m.IAD - YTZ
Nonstop1h 34mPorter Airlines
mié. 7/18:50 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 11/12C$ 303
mié. 22/46:30 p.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
sáb. 25/411:00 a.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 10/12C$ 305
jue. 26/211:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
vie. 6/33:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 11/12C$ 306
sáb. 24/19:45 a.m.IAD - YYZ
1 stop4h 55mAir Canada
sáb. 31/14:00 p.m.YYZ - IAD
1 stop4h 54mAir Canada
Deal found 10/12C$ 306
lun. 6/411:40 a.m.IAD - YTZ
Nonstop1h 30mPorter Airlines
mar. 14/43:45 p.m.YTZ - IAD
Nonstop1h 29mPorter Airlines
Deal found 10/12C$ 308

Find flights from Dulles Intl within your budget

 
Find flights departing from Dulles Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 12 diciembre 2025. In the last 7 days, Cheapflights users made a total of 629,999 searches

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

jue. 23/4

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

dom. 26/4

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 294

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

vie. 24/4

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

dom. 26/4

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

Nonstop1h 29m

C$ 295

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

jue. 26/2

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

vie. 6/3

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 306

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

jue. 8/1

9:45 a.m.-2:55 p.m.

1 stop5h 10m

Toronto Island

lun. 12/1

3:30 p.m.-8:54 p.m.

1 stop5h 24m

C$ 310

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

dom. 11/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

dom. 25/1

8:50 a.m.-10:19 a.m.

Nonstop1h 29m

C$ 316

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

dom. 1/3

6:30 p.m.-8:00 p.m.

Nonstop1h 30m

Toronto Island

jue. 5/3

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

Nonstop1h 29m

C$ 330

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

mar. 17/2

9:00 a.m.-10:29 a.m.

Nonstop1h 29m

Toronto Pearson Intl

mar. 24/2

2:15 p.m.-3:49 p.m.

Nonstop1h 34m

C$ 330

Washington, D.C.Toronto

IAD - YYZ

IADYYZ

Washington, D.C. Dulles Intl

dom. 1/3

9:00 a.m.-10:29 a.m.

Nonstop1h 29m

Toronto Pearson Intl

jue. 5/3

2:15 p.m.-3:46 p.m.

Nonstop1h 31m

C$ 330

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

vie. 2/1

11:35 a.m.-1:09 p.m.

Nonstop1h 34m

Toronto Island

lun. 5/1

3:45 p.m.-5:14 p.m.

Nonstop1h 29m

C$ 330

Washington, D.C.Toronto

IAD - YTZ

IADYTZ

Washington, D.C. Dulles Intl

jue. 16/4

11:40 a.m.-1:10 p.m.

Nonstop1h 30m

Toronto Island

vie. 17/4

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

Nonstop1h 29m

C$ 331

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl

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

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

When is the best time to book a flight from Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Pierre Elliott Trudeau Intl. Price data was last updated on 5 December 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of C$ 154). Flying from Washington, D.C. Dulles Intl Airport in August will prove the most costly (average of C$ 352). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Washington, D.C. Dulles Intl Airport?

For flights departing from Washington, D.C. Dulles Intl Airport check dates and pricing for the following: Air Canada, Porter Airlines. These airlines depart to the following popular destinations: Montreal.

Air Canada
Air Canada
From C$ 157
Porter Airlines
Porter Airlines
From C$ 232
Etihad Airways
Etihad Airways
From C$ 984
United Airlines
United Airlines
From C$ 182

What are popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

From Washington, D.C. Dulles Intl Airport you can expect to find greater availability for the following destinations: London (332 flights per day), Detroit (330 flights per day) and Orlando (276 flights per day).

Toronto
Toronto
From C$ 131
Montreal
Montreal
From C$ 332
Abu Dhabi Zayed Intl
Abu Dhabi Zayed Intl
From C$ 482
Istanbul
Istanbul
From C$ 283

What is the cheapest place to fly to from Washington, D.C. Dulles Intl Airport?

The cheapest city to fly to from Washington, D.C. Dulles Intl Airport is Atlanta Hartsfield-Jackson, with prices starting at C$ 82. Explore other affordable destinations below.

Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From C$ 82
San Salvador El Salvador Intl
San Salvador El Salvador Intl
From C$ 98
Toronto
Toronto
From C$ 131
Ottawa
Ottawa
From C$ 224

Airline reviews for flights from Dulles Intl

Get insights into the airlines that provide service from Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Dulles Intl. In the last 7 days, Cheapflights users made a total of 629,999 searches.
Get a feel of what it's like to fly with Porter Airlines and Air Canada from Washington, D.C. Dulles Intl Airport 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
8.0
Very good
398 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Porter Airlines
8.0
Very good
398 reviews
Porter Airlines
8.0
Very good
398 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out
Air Canada
7.1
Good
10,516 reviews
Porter Airlines
8.0
Very good
398 reviews
Check prices

Entertainment

7.0

Food

7.6

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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Alternate flight departure points to Dulles Intl

Consider leaving from one of these other departure points that are located a short distance from Dulles Intl. Flight origins were last updated on 12 diciembre 2025.
Flights from Reagan-National

Related info for your journey

Access useful and relevant information related to your journey from Dulles Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 12 diciembre 2025.

  • What are the most popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

    This month, the top selected destinations from Washington, D.C. Dulles Intl Airport are Mumbai, Ahmedabad, Cairo. Throughout the year, Mumbai, Cairo, Ahmedabad are some of the top choices made by users flying from Washington, D.C. Dulles Intl Airport.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to anywhere?

    Users have flown out of Washington, D.C. Dulles Intl Airport for as low as C$ 82 to Atlanta (prices may vary depending on the airline and departure time). On average, users have booked flights for C$ 833 to fly from Washington, D.C. Dulles Intl Airport.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to anywhere?

    According to our data, users have found Frontier, Air Canada, and United Airlines to have the cheapest round-trip prices from Washington, D.C. Dulles Intl Airport. Some of the destinations and prices are as follows: Frontier flights from Washington, D.C. Dulles Intl Airport to Atlanta Hartsfield-Jackson (C$ 62). Air Canada flights from Washington, D.C. Dulles Intl Airport to Toronto (C$ 157). United Airlines flights from Washington, D.C. Dulles Intl Airport to Vancouver Intl (C$ 182).

  • What is the cheapest premium economy flight from Washington, D.C. Dulles Intl Airport?

    Options for some of the cheapest premium economy flights from Washington, D.C. Dulles Intl Airport we have found on Cheapflights are as follows:
    Fly from Washington, D.C. Dulles Intl to Toronto Island Airport starting at C$ 756
    Fly from Washington, D.C. Dulles Intl to Los Angeles starting at C$ 1,033
    Fly from Washington, D.C. Dulles Intl to Atlanta starting at C$ 1,129
    Fly from Washington, D.C. Dulles Intl to Miami starting at C$ 1,262

  • What is the cheapest first class flight from Washington, D.C. Dulles Intl Airport?

    If you’re looking to fly first-class from Washington, D.C. Dulles Intl Airport to anywhere, put Atlanta on your list as prices start at C$ 1,008 for this destination.

  • What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport?

    At the present moment the cheapest month to fly from Washington, D.C. Dulles Intl Airport is currently March; with August being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Washington, D.C. Dulles Intl Airport?

    Check out the cheapest flights from Washington, D.C. Dulles Intl Airport to embark to:
    Travel from Washington, D.C. to Toronto from C$ 261 round trip
    Travel from Washington, D.C. to Montreal from C$ 321 round trip
    Travel from Washington, D.C. to Vancouver from C$ 335 round trip
    Travel from Washington, D.C. to Calgary from C$ 367 round trip
    Travel from Washington, D.C. to Ottawa from C$ 375 round trip

  • How does Cheapflights help users find flights from Dulles Intl?

    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 from Dulles Intl today with Cheapflights!

  • Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

    Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

    Need flexible booking options for your flight from Dulles Intl ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

    Yes, Cheapflights offers price alerts on flights from Dulles Intl so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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How does Cheapflights help users find flights from Dulles Intl?

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 from Dulles Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Need flexible booking options for your flight from Dulles Intl ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

Yes, Cheapflights offers price alerts on flights from Dulles Intl so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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