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Find cheap United Airlines flights to Washington, D.C. Dulles Intl Airport

CMH — IAD
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from Canada to Dulles Intl
Explore the most affordable United Airlines flight options available from Canada to Dulles Intl. Find the lowest fares with prices last updated on 27 July 2026.

Sat 8/89:35 a.m.
YYZ
-
IAD
Nonstop1h 36m
United Airlines
Sat 8/810:14 p.m.
IAD
-
YYZ
Nonstop1h 40m
United Airlines
Deal found 24/7C$ 354
Thu 13/812:45 p.m.
YYZ
-
IAD
Nonstop1h 37m
United Airlines
Sun 16/85:17 p.m.
IAD
-
YYZ
Nonstop1h 45m
United Airlines
Deal found 23/7C$ 365
Tue 11/812:45 p.m.
YYZ
-
IAD
Nonstop1h 37m
United Airlines
Tue 18/88:20 a.m.
IAD
-
YYZ
1 stop12h 24m
United Airlines
Deal found 22/7C$ 389

Flights to Washington, D.C. Dulles Intl Airport with United Airlines at a glance

Find detailed information about United Airlines flights from Canada to Dulles Intl. Explore the options provided by United Airlines to plan your journey from Canada to Dulles Intl. Data last updated 27 July 2026.

Popular in

July

Cheapest in

February

Average price

C$ 502

Round-trip from

C$ 334

One-way from

C$ 214

Good round-trip deal

C$ 558 or less
Highest demand for flights to Washington, D.C. Dulles Intl Airport with United Airlines; 15% potential price increase.
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Best time to find cheap flights to Washington, D.C. Dulles Intl Airport with United Airlines; 2% potential price drop.
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Average price for flights to Washington, D.C. Dulles Intl Airport with United Airlines (round-trip).
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United Airlines
  • United Airlines
  • 13/9-13/9
  • 1 total stop
  • 6h 24m total
  • Canada to Washington, D.C.
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United Airlines
  • United Airlines
  • 12/8
  • Nonstop
  • 1h 37m total
  • Canada to Washington, D.C.
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Price to beat on a round-trip flight from Canada to Washington, D.C. Dulles Intl Airport with United Airlines.
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Cheapflights Insights

Find cheap United Airlines flights to Washington, D.C. Dulles Intl Airport

How long is the flight to Washington, D.C. Dulles Intl Airport with United Airlines?

On average, United Airlines flights from Canada to Washington, D.C. Dulles Intl Airport take 2 hours 27 minutes. Flights to Washington, D.C. Dulles Intl Airport from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

United Airlines weekly flight availability to Washington, D.C. Dulles Intl Airport

The most flights to Washington, D.C. Dulles Intl Airport operated by United Airlines are scheduled on a Saturday (19 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (18 on average).

When is the cheapest time to fly to Washington, D.C. Dulles Intl Airport with United Airlines?

Users looking for the cheapest United Airlines fares to Washington, D.C. Dulles Intl Airport should consider flying on Monday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.

FAQs about flights to Washington, D.C. Dulles Intl Airport with United Airlines

  • Which airport do United Airlines flights arrive at when travelling to Washington, D.C. Dulles Intl Airport?

    United Airlines flights on this route tend to land at Washington, D.C. Dulles Intl Airport.

  • Is United Airlines the cheapest airline for a flight to Washington, D.C. Dulles Intl Airport?

    Flight prices will depend on factors like date, time, and cabin class, so it is worth comparing flights before booking. Based on Cheapflights data, the cheapest average round-trip price for flights to Washington, D.C. Dulles Intl Airport tends to be with American Airlines.

  • Are there alternative airlines other than United Airlines that fly to Washington, D.C. Dulles Intl Airport?

    Air Canada, Porter Airlines and WestJet all fly to Washington, D.C. Dulles Intl Airport and offer an alternative to United Airlines.

  • How much is a flight to Washington, D.C. Dulles Intl Airport with United Airlines?

    The average price for a round-trip with United Airlines is C$ 554, while a one-way flight costs around C$ 364.

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Reviews of United Airlines

See what Cheapflights users have to say about their United Airlines experience.
United Airlines
7.4
Good
10,000 reviews
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Overview

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Popular United Airlines flights

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