Cheap Flights to Washington Dulles Intl.

View ₩178,700 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines to Washington Dulles Intl. Airport (IAD)

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How much is the cheapest flight to Washington Dulles Intl.?

Prices were available within the past 7 days and start at ₩178,700 for one-way flights and ₩331,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Oct 7 - Wed, Oct 8
YYZ
Toronto
IAD
Washington
₩331,800 Roundtrip, found 21 hours ago
₩331,800
Roundtrip
found 21 hours ago
Select Air Canada flight, departing Tue, Oct 7 from Toronto to Washington, returning Wed, Oct 8, priced at ₩331,800 found 21 hours ago
United
Sat, Oct 25 - Sun, Nov 2
YYZ
Toronto
IAD
Washington
₩339,400 Roundtrip, found 2 days ago
₩339,400
Roundtrip
found 2 days ago
Select United flight, departing Sat, Oct 25 from Toronto to Washington, returning Sun, Nov 2, priced at ₩339,400 found 2 days ago
Delta
Tue, Oct 7 - Wed, Oct 8
YYZ
Toronto
IAD
Washington
₩348,200 Roundtrip, found 21 hours ago
₩348,200
Roundtrip
found 21 hours ago
Select Delta flight, departing Tue, Oct 7 from Toronto to Washington, returning Wed, Oct 8, priced at ₩348,200 found 21 hours ago
American Airlines
Thu, Oct 2 - Wed, Oct 8
SEA
Seattle
IAD
Washington
₩495,500 Roundtrip, found 5 days ago
₩495,500
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Oct 2 from Seattle to Washington, returning Wed, Oct 8, priced at ₩495,500 found 5 days ago
WestJet
Tue, Oct 7 - Wed, Oct 8
YYZ
Toronto
IAD
Washington
₩623,700 Roundtrip, found 21 hours ago
₩623,700
Roundtrip
found 21 hours ago
Select WestJet flight, departing Tue, Oct 7 from Toronto to Washington, returning Wed, Oct 8, priced at ₩623,700 found 21 hours ago

Find the cheapest month to fly from Columbus (CMH) to Washington (IAD)

August is typically the cheapest month to fly

From ₩151,231 - ₩641,159 per traveler.

Searching for cheap flights to Washington Dulles Intl.? No travel company presents more choices than Expedia if you're looking to compare flights to Washington Dulles Intl.. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Chantilly. Expedia provides the cheapest flights to many destinations in Chantilly and you may find even greater savings if you combine your flight with a hotel stay in Washington Dulles Intl..

Flights to Washington Dulles Intl. information
Destination airport
Washington Dulles Intl.
Destination airport IATA code
IAD
Destination city name
Washington
Airlines serving
Air Canada, Air China, Air France, Alaska Airlines, All Nippon Airways, American Airlines, British Airways, Delta, Emirates, Ethiopian Airlines, Etihad Airways, Hawaiian Airlines, KLM, Korean Air, Lufthansa, Qatar Airways, Swiss International Air Lines, Turkish Airlines, United, WestJet
Roundtrip price
₩218,300
Popular airline
Delta

Trending flights to Washington Dulles Intl.

Prices were available within the past 7 days and start at ₩178,700 for one-way flights and ₩331,800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Fri, Sep 19 - Wed, Sep 24
ICN
Seoul
IAD
Washington
₩654,100 Roundtrip, found 4 days ago
₩654,100
Roundtrip
found 4 days ago
Select Air Canada flight, departing Fri, Sep 19 from Seoul to Washington, returning Wed, Sep 24, priced at ₩654,100 found 4 days ago
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