CA $557 Cheap Flights from Washington (IAD) to Bangkok (BKK)

View CA $557 flight on Fri, Apr 24, 2026Opens in a new window

Popular airlines from Washington Dulles International Airport (IAD) to Suvarnabhumi International Airport (BKK)

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Cheap flights from Washington (IAD) to Bangkok (BKK)

Prices were available within the past 7 days and start at CA $557 for one-way flights and CA $1,044 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Fri, Apr 24 - Fri, May 1
IAD
Washington
BKK
Bangkok
CA $1,044 Roundtrip, found 6 days ago
CA $1,044
Roundtrip
found 6 days ago
Select Etihad Airways flight, departing Fri, Apr 24 from Washington to Bangkok, returning Fri, May 1, priced at CA $1,044 found 6 days ago
Qatar Airways
Thu, Apr 16 - Fri, May 1
IAD
Washington
BKK
Bangkok
CA $1,332 Roundtrip, found 2 hours ago
CA $1,332
Roundtrip
found 2 hours ago
Select Qatar Airways flight, departing Thu, Apr 16 from Washington to Bangkok, returning Fri, May 1, priced at CA $1,332 found 2 hours ago
EVA Airways
Tue, Sep 1 - Wed, Sep 30
IAD
Washington
BKK
Bangkok
CA $1,386 Roundtrip, found 6 days ago
CA $1,386
Roundtrip
found 6 days ago
Select EVA Airways flight, departing Tue, Sep 1 from Washington to Bangkok, returning Wed, Sep 30, priced at CA $1,386 found 6 days ago
American Airlines
Mon, Apr 20 - Mon, Apr 27
IAD
Washington
BKK
Bangkok
CA $1,467 Roundtrip, found 2 days ago
CA $1,467
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Apr 20 from Washington to Bangkok, returning Mon, Apr 27, priced at CA $1,467 found 2 days ago
Turkish Airlines
Wed, Sep 9 - Fri, Sep 25
IAD
Washington
BKK
Bangkok
CA $1,758 Roundtrip, found 4 days ago
CA $1,758
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Wed, Sep 9 from Washington to Bangkok, returning Fri, Sep 25, priced at CA $1,758 found 4 days ago
Emirates
Thu, Apr 23 - Sun, May 3
IAD
Washington
BKK
Bangkok
CA $1,797 Roundtrip, found 3 days ago
CA $1,797
Roundtrip
found 3 days ago
Select Emirates flight, departing Thu, Apr 23 from Washington to Bangkok, returning Sun, May 3, priced at CA $1,797 found 3 days ago
Air China
Fri, Apr 24 - Fri, May 1
IAD
Washington
BKK
Bangkok
CA $1,900 Roundtrip, found 6 days ago
CA $1,900
Roundtrip
found 6 days ago
Select Air China flight, departing Fri, Apr 24 from Washington to Bangkok, returning Fri, May 1, priced at CA $1,900 found 6 days ago
Swiss International Air Lines
Wed, Sep 9 - Fri, Sep 25
IAD
Washington
BKK
Bangkok
CA $2,074 Roundtrip, found 4 days ago
CA $2,074
Roundtrip
found 4 days ago
Select Swiss International Air Lines flight, departing Wed, Sep 9 from Washington to Bangkok, returning Fri, Sep 25, priced at CA $2,074 found 4 days ago
JetBlue Airways
Mon, Apr 20 - Mon, Apr 27
IAD
Washington
BKK
Bangkok
CA $2,097 Roundtrip, found 2 days ago
CA $2,097
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Mon, Apr 20 from Washington to Bangkok, returning Mon, Apr 27, priced at CA $2,097 found 2 days ago
Saudia
Fri, May 8 - Fri, Aug 21
IAD
Washington
BKK
Bangkok
CA $2,223 Roundtrip, found 2 days ago
CA $2,223
Roundtrip
found 2 days ago
Select Saudia flight, departing Fri, May 8 from Washington to Bangkok, returning Fri, Aug 21, priced at CA $2,223 found 2 days ago

Alternative airports near Bangkok

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Suvarnabhumi Intl. BKK. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from CA $1,335
BKK
Suvarnabhumi Intl.
Cheapest
Average driving time to city centre23 min
Flights from CA $1,335

Find the cheapest month to fly from Washington (IAD) to Bangkok (BKK)

April is typically the cheapest month to fly

From CA $1,043 - CA $2,343 per traveller.

Frequently asked questions

How much is a flight from IAD to Suvarnabhumi Intl. Airport (BKK)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between Dulles Intl. Airport and Suvarnabhumi Airport was CA $1,044. Great fares don't last long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Suvarnabhumi Airport?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from IAD to Bangkok Airport that have flexible change policies?
Flights from Dulles Intl. Airport to Suvarnabhumi Intl. Airport (BKK) offering flexible change policies are available from several carriers. Simply use our "No change fees" filter while searching. You'll only need to pay the difference in ticket price, with no extra fees to worry about.
How many hours is the flight from IAD to Suvarnabhumi Airport?
Averaging 19 hours and 27 minutes, the flight from Washington Dulles Intl. Airport (IAD) to Suvarnabhumi Intl. Airport (BKK) is a long one. To make your trip more enjoyable, pack a quality neck pillow and a set of noise-cancelling earphones.
How far is the flight from Washington Dulles Intl. Airport (IAD) to Bangkok Airport?
With a flight distance of 14,200 kilometres between IAD and Bangkok Airport, this is a long-haul flight. Remember to keep well hydrated and move your legs every now and then.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Bangkok Airport?
Flying nonstop between Washington Dulles Intl. Airport (IAD) and Bangkok Airport isn't possible right now. However, you'll still be able to book a flight to Bang Phli with at least one stop.
Are Dulles Intl. Airport to Suvarnabhumi Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up an awesome last-minute deal from Dulles Intl. Airport to Bangkok Airport, but it's also possible to miss out altogether! As many airlines release prices up to a year in advance, it's worth keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares air carrier prices and updates flight deals frequently, so you can rest assured you're always seeing the latest offers.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air Canada, Air China, Alaska Airlines, All Nippon Airways, American Airlines, Austrian Airlines, British Airways, Delta, EVA Airways, Emirates, Ethiopian Airlines, Etihad Airways, ITA Airways, JetBlue Airways, Korean Air, Lufthansa, Qatar Airways, Royal Jordanian, Saudia, Swiss International Air Lines
Roundtrip price
CA $1,044
Distance
14075 km

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