฿12,242 Find Cheap Flights to Washington, D.C. – Compare and Save

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Everything you should know

Cheapest return flight
฿27,512
Typical prices: ฿36,069-฿41,878
Thai Airways
Sun 28/10Sun 4/11
BKK - IAD • 1 stop
Cheapest one-way flight
฿12,242
Typical prices: ฿22,297-฿36,159
เอทิฮัดแอร์เวย์
Tue 13/11
CNX - IAD • 1 stop
Top airlines
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
Top routes
BKK - WAS
Cheapest • 13% average savings
CNX - WAS
Most popular
Insights
Insights
When to book
15 weeks
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 12% price drop
May
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Washington, D.C.

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Washington, D.C.

Fri 30 Oct - Fri 6 Nov
Multiple Airlines Logo
14:30 - 10:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
30h 35m2 stops Krabi Abu Dhabi Zayed Intl
Multiple Airlines Logo
23:35 - 21:25IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 50m1 stop Incheon Intl
฿26,713Multiple Airlines
Fri 30 Oct - Fri 6 Nov
ซาอุเดียแอร์ไลน์ Logo
15:20 - 14:50BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
34h 30m1 stop Jeddah King Abdulaziz Intl
ซาอุเดียแอร์ไลน์ Logo
17:50 - 13:40IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
31h 50m1 stop Riyadh King Khaled Intl
฿27,245ซาอุเดียแอร์ไลน์
Wed 28 Oct - Wed 4 Nov
Thai Airways Logo
08:10 - 21:55BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
24h 45m1 stop Taipei City Taiwan Taoyuan Intl
Thai Airways Logo
23:55 - 16:50IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
28h 55m1 stop Taipei City Taiwan Taoyuan Intl
฿27,512Thai Airways
Mon 21 Dec - Thu 7 Jan
เอทิฮัดแอร์เวย์ Logo
08:30 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 35m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
14:35 - 06:35IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
28h 00m1 stop Abu Dhabi Zayed Intl
฿32,801เอทิฮัดแอร์เวย์
Mon 21 Dec - Sun 10 Jan
เอทิฮัดแอร์เวย์ Logo
08:30 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 35m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
14:35 - 11:45IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
33h 10m1 stop Abu Dhabi Zayed Intl
฿32,801เอทิฮัดแอร์เวย์
Sun 20 Dec - Tue 12 Jan
เอทิฮัดแอร์เวย์ Logo
02:55 - 09:05BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
42h 10m1 stop Abu Dhabi Zayed Intl
เอทิฮัดแอร์เวย์ Logo
14:35 - 18:00IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
39h 25m1 stop Abu Dhabi Zayed Intl
฿32,834เอทิฮัดแอร์เวย์
Mon 9 Nov - Sun 22 Nov
United Airlines Logo
09:10 - 09:10BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 00m1 stop Tokyo Haneda
United Airlines Logo
13:15 - 11:30IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
34h 15m3 stops Chicago O'Hare Intl Los Angeles Hong Kong Intl
฿34,165United Airlines
Thu 12 Nov - Mon 16 Nov
United Airlines Logo
09:10 - 09:10BKK  Bangkok Suvarnabhumi-IAD Washington, D.C. Dulles Intl
36h 00m1 stop Tokyo Haneda
United Airlines Logo
06:11 - 05:10IAD  Washington, D.C. Dulles Intl-BKK Bangkok Suvarnabhumi
34h 59m2 stops Chicago O'Hare Intl Tokyo Haneda
฿34,198United Airlines
Tue 10 Nov - Sat 14 Nov
Korean Air Logo
23:15 - 15:44BKK  Bangkok Suvarnabhumi-BWI Baltimore/Washington
28h 29m2 stops Incheon Intl Atlanta Hartsfield-Jackson
Korean Air Logo
07:05 - 00:20BWI  Baltimore/Washington-BKK Bangkok Suvarnabhumi
29h 15m2 stops Atlanta Hartsfield-Jackson Incheon Intl
฿37,891Korean Air
Wed 4 Nov - Mon 9 Nov
Korean Air Logo
00:20 - 17:31CNX  Chiang Mai-BWI Baltimore/Washington
29h 11m2 stops Incheon Intl Boston Logan Intl
Korean Air Logo
07:05 - 22:45BWI  Baltimore/Washington-CNX Chiang Mai
27h 40m2 stops Atlanta Hartsfield-Jackson Incheon Intl
฿37,891Korean Air
Booking Insights

Price, demand, and travel trends for Thailand to Washington, D.C. flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Thailand to Washington, D.C. with more confidence.

What is the cheapest flight to Washington, D.C.?

Bangkok Suvarnabhumi Airport to Washington, D.C. is the cheapest route at ฿27,512 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.

How much is a flight to Washington, D.C.?

A return flight to Washington, D.C. costs ฿39,085 on average, based on data over the past 12 months on KAYAK. Return fares from Bangkok Suvarnabhumi Airport average ฿38,943, while Chiang Mai runs a bit higher at ฿40,055.

What is the cheapest day to fly to Washington, D.C.?

Tuesday is the cheapest day to fly to Washington, D.C. at ฿37,026 return on average over the past 12 months on KAYAK. Monday is the most expensive at ฿41,384.

What is the cheapest month to fly to Washington, D.C.?

  • March is the cheapest month to fly to Washington, D.C. with an average price of ฿34,431 return.
  • February (฿41,184) and August (฿41,084) are the most expensive.
  • Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Washington, D.C.?

Morning flights to Washington, D.C. are the cheapest at ฿34,963 return on average. Afternoon flights are the most expensive at ฿40,186.

What is a good deal for flights to Washington, D.C.?

Flights under ฿36,069 are considered a good deal. 25% of KAYAK users found return flights to Washington, D.C. at or below these prices, with the lowest fares from:

  • Chiang Mai ฿35,097
.

When are flights to Washington, D.C. the cheapest?

Flights to Washington, D.C. are cheapest 15 weeks before departure. Booking in this window typically costs about 24% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for flights to Washington, D.C.

Low season

January

Cheapest flight

฿12,242
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (2% more expensive on average)
Flights from Chiang Mai to Washington, D.C. Dulles Intl Airport

When to book flights to Washington, D.C.

Are your dates flexible? Find out the best times to travel to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Washington, D.C., answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • What is the difference between the most popular and the most frequent airline at Washington, D.C.?

    Qatar Airways operates the most flights from Thailand to Washington, D.C. at 0 per week, and for this route Qatar Airways is also the airline most often selected by KAYAK users searching for flights from Thailand to Washington, D.C.. The two are sometimes different because flight volume reflects an airline's schedule, while popularity reflects traveller choice.

  • Which airports serve Washington, D.C.?

    Flights to Washington, D.C. arrive at: Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD).

  • Which airports serve Washington, D.C. and the surrounding area?

    Flights to Washington, D.C. can arrive at several major airports serving the metro area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Nearby alternatives within 80.5 km of Washington, D.C. include Washington, D.C. Reagan-National (DCA), Fort Meade Tipton (FME) and Baltimore/Washington (BWI). These airports are not in Washington, D.C. itself but may be useful depending on your route, airline, and onward travel plans.

  • Where can I fly from to get the cheapest fares to Washington, D.C.?

    Based on fares booked in the past 5 days, the cheapest flights to Washington, D.C. are from:
    • Bangkok, from ฿27,512 return

  • How do I know if a flight to Washington, D.C. is a good deal?

    A good deal on a flight to Washington, D.C. is around ฿36,069 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How expensive are last-minute flights to Washington, D.C.?

    Last-minute fares to Washington, D.C. – booked within 2 weeks of departure – run 6% above the average return fare of ฿39,085.

Your guide to booking Washington, D.C. flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For the best chance at a low fare to Washington, D.C., aim to book around 15 weeks before you fly. That window historically saves about 24% versus last-minute pricing based on KAYAK booking data over the last 12 months.
  • For flights to Washington, D.C., recent KAYAK data shows that stronger deals tend to be around ฿36,069 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to Washington, D.C. in March. Return fares historically average ฿34,431 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to morning to save up to ฿5,223 per return. Morning flights to Washington, D.C. average ฿34,963 compared to ฿40,186 for midday flights. See the time-of-day chart above for the full breakdown.
  • Once you arrive in Washington, D.C., a few great places to start are Vietnam Veterans Memorial and Nationals Park. These are popular with first-time visitors and can give you a good feel for the area.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Towson
Fairfax
Arlington
Silver Spring
Bethesda
Falls Church

More options for your flight to Washington, D.C.