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Cheap Flights from Washington D.C. to Bangkok

Compare Washington D.C. to Bangkok flight deals

Find the cheapest month or even day of the year to fly to Bangkok

Book the best Bangkok fare with no extra fees

Flight deals from Washington D.C. to Bangkok

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Bangkok? Find the lowest prices on one-way and return tickets right here.
Bangkok.677 € per passenger.Departing Tue, 4 Nov, returning Tue, 2 Dec.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Washington Ronald Reagan on Tue, 4 Nov, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Korean Air, departs from Bangkok Suvarnabhumi on Tue, 2 Dec, arriving in Washington Dulles.Price includes taxes and charges.From 677 €, select.
Bangkok.712 € per passenger.Departing Fri, 17 Oct, returning Mon, 27 Oct.Return flight with Air China.Outbound indirect flight with Air China, departs from Washington Dulles on Fri, 17 Oct, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Air China, departs from Bangkok Suvarnabhumi on Mon, 27 Oct, arriving in Washington Dulles.Price includes taxes and charges.From 712 €, select.
Bangkok.712 € per passenger.Departing Fri, 7 Nov, returning Fri, 21 Nov.Return flight with Air China.Outbound indirect flight with Air China, departs from Washington Dulles on Fri, 7 Nov, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Air China, departs from Bangkok Suvarnabhumi on Fri, 21 Nov, arriving in Washington Dulles.Price includes taxes and charges.From 712 €, select.
Bangkok.720 € per passenger.Departing Tue, 9 Sep, returning Tue, 16 Sep.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Washington Dulles on Tue, 9 Sep, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Korean Air, departs from Bangkok Suvarnabhumi on Tue, 16 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 720 €, select.
Bangkok.722 € per passenger.Departing Mon, 28 Jul, returning Thu, 28 Aug.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Washington Dulles on Mon, 28 Jul, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Korean Air, departs from Bangkok Suvarnabhumi on Thu, 28 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 722 €, select.
Bangkok.722 € per passenger.Departing Tue, 26 Aug, returning Tue, 9 Sep.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Washington Dulles on Tue, 26 Aug, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Korean Air, departs from Bangkok Suvarnabhumi on Tue, 9 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 722 €, select.
Bangkok.722 € per passenger.Departing Mon, 18 Aug, returning Thu, 28 Aug.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Washington Dulles on Mon, 18 Aug, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Korean Air, departs from Bangkok Suvarnabhumi on Thu, 28 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 722 €, select.
Bangkok.778 € per passenger.Departing Tue, 3 Mar, returning Tue, 24 Mar.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 3 Mar, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Turkish Airlines, departs from Bangkok Suvarnabhumi on Tue, 24 Mar, arriving in Washington Dulles.Price includes taxes and charges.From 778 €, select.

Find the cheapest month to fly from Washington D.C. to Bangkok

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Bangkok flights are currently cheapest in October.
Jun
from 1.009 €
Jul
from 830 €
Aug
from 722 €
Sep
from 720 €
Oct
from 712 €
Nov
from 712 €
Dec
from 797 €
Jan
from 850 €
Feb
from 795 €
Mar
from 778 €
Apr
from 813 €
May
from 869 €

Alternative Washington D.C. to Bangkok routes

Looking for the cheapest, fastest or easiest route from Washington D.C. to Bangkok? You could fly into the following airports instead.

Washington D.C. to Bangkok: Flight information

The things to know before you go.
Cheapest flight found677 €
Cheapest month to flyNovember

Finding cheap flights from Washington D.C. to Bangkok: Frequently asked questions

There are 2 airports in Bangkok: Don Mueang and Bangkok Suvarnabhumi.
The best price we found for a return flight from Washington D.C. to Bangkok is 677 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington D.C. to Bangkok. But we found flights with one or more stops from 677 €.
As of June 2025, there are no flights flying from Washington D.C. to Bangkok.
The cheapest month to fly from Washington D.C. to Bangkok is usually June 2025.
If you're flying from Washington D.C., the cheapest airport near Bangkok is Bangkok Suvarnabhumi – which is 28.5 km away from the centre of Bangkok. We've found flights into this airport from 677 €.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Bangkok on Tuesday, 4 November 2025.
No airlines currently offer direct flights between Washington D.C. and Bangkok. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Bangkok but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Bangkok is around 40 days in advance, so don’t leave your flight to the last minute.
In June, the average temperature is usually around 29°C. April is typically the warmest month in Bangkok, when it usually averages around 35°C. You can expect the least rain in December. The coldest month is November, with temperatures averaging 22°C. The rainiest month is September.
The cheapest airline that flies to Bangkok is Korean Air .

Travelling from Washington DC to Bangkok: what you need to know

  • Organising your flight from Washington DC to Bangkok begins with finding the right airport to start your journey. Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) and Baltimore/Wash International Thurgood Marshall Airport (BWI) are the main terminals in Washington DC.

  • Suvarnabhumi Airport (BKK) and Don Mueang International Airport (DMK) are Bangkok's primary gateways.

  • Bangkok is 11 hours ahead of Washington DC and is in the UTC+7 timezone.

  • Leave plenty of time to get on your Washington DC to Bangkok flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • Peak months like February or holiday periods such as Christmas and New Year will mean longer queues at security and check-in. Be on the safe side and head to the terminal even earlier. Arriving two hours before domestic flights and four hours ahead of an international departure is a smart idea.

How to find the cheapest flights from Washington DC to Bangkok

  • Booking ahead of time is often the key to scoring a cheap Washington DC to Bangkok flight. Flight prices rise as demand increases, so the nearer your departure date, the more expensive your ticket may be.

  • If you can be flexible with your travel plans, try using the 'Whole month' tool. It'll show you the lowest price across every month when looking for your plane ticket from Washington DC to Bangkok.

  • Snapping up a cheap flight from Washington DC to Bangkok couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as there's a better deal.

  • Find an affordable Washington DC to Bangkok flight with the help of our filters. Choose your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Flying from Washington DC

Ronald Reagan National Airport (DCA)

  • Travelling from central Washington DC to DCA takes about 45 minutes on public transport. If you ride-share, drive or get a cab, you'll cover the 6 kilometres in 15 minutes or so, depending on traffic.

  • In search of a convenient hotel near Ronald Reagan National Airport? If you've booked an early flight from Washington DC to Bangkok, these stays will have you sleeping moments from check-in:

  • 76.44% of flights that leave from Ronald Reagan National Airport make it to their destination on time.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Make the most of your holiday with a stopover on your Washington DC to Bangkok flight. Visit family or friends or cross another city off your list. Whatever you want to do, check out these stops between Washington Dulles International Airport and Bangkok:

    • Indira Gandhi International Airport (DEL)

    • Charles de Gaulle Airport (CDG)

    • London Heathrow Airport (LHR)

  • You can reach IAD from the centre of Washington DC in about 50 minutes by car, depending on traffic. The journey by public transport will take roughly 1 hour 10 minutes to travel the 40 kilometres or so.

  • Start your holiday sooner with an additional night away from home. Before catching your flight from Washington DC to Bangkok, unwind in one of these hotels close to Washington Dulles International Airport:

  • Washington Dulles International Airport has an on-time performance of 74.39%. This figure provides insight into how frequently flights departing from this airport land at their destination on schedule.

  • IAD is located at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Whether just for a couple of hours or several days, a stopover can make your whole trip feel a little more stress-free. When flying out of Baltimore/Wash International Thurgood Marshall Airport (BWI), you can book a ticket from Washington DC to Bangkok with a stop at London Heathrow Airport (LHR).

  • The journey time to BWI from central Washington DC is around 1 hour 30 minutes by public transport. If you're in a car, it'll take you roughly 50 minutes to cover the 40 kilometres or so.

  • Relax in bed for a little longer and still make your Washington DC to Bangkok flight with plenty of time to spare. These accommodation options near Baltimore/Wash International Thurgood Marshall Airport make departure day effortless if you're flying out first thing:

  • Flights departing from BWI arrive at their final stop within the scheduled time frame 77.13% of the time.

Arriving in Bangkok

Suvarnabhumi Airport (BKK)

  • The distance from Suvarnabhumi Airport (BKK) to central Bangkok is approximately 27 kilometres. It'll take you around 35 minutes to reach the centre driving.

  • If you're taking public transport, expect a journey time of roughly 1 hour 5 minutes.

  • The last thing you want is a long journey to your hotel if you're arriving on a late flight from Washington DC to Bangkok. Stay at one of these accommodation options near BKK instead:

  • Explore without limits with a Suvarnabhumi Airport rental car. Pick up your wheels from Chic Car Rent, asap car hire or Hertz and see more of Bangkok and beyond.

  • Booking your ride from Suvarnabhumi Airport around four weeks ahead increases your chances of getting a good deal.

Don Mueang International Airport (DMK)

  • Don Mueang International Airport (DMK) is roughly 21 kilometres from the centre of Bangkok. Following your flight from Washington DC to Bangkok, it'll take you approximately 30 minutes to reach the heart of the city in a ride-share or cab.

  • The trip will take roughly 1 hour 5 minutes on public transport.

  • Hang the 'Do not disturb' sign on your door and unwind at a hotel near DMK. Here are a few options where you can kick back after your flight from Washington DC to Bangkok:

  • No need to worry about public transport schedules or slow-moving cab lines. Pick up a Don Mueang International Airport rental car and let the journey unfold your way. Check out the availability and rates from Chic Car Rent, asap car hire and Hertz.

  • Call dibs on the best options. Securing your ride from DMK three weeks ahead of time often means better prices and a greater selection of vehicles.

Best time to go to Bangkok

  • It's time to plan your trip dates for your flight from Washington DC to Bangkok. July is the most popular month to visit Bangkok. If you prefer a more low-key vibe, go in April.

  • When booking your Washington DC to Bangkok tickets, consider what kind of weather you prefer. April is the warmest month in Bangkok, with temperatures ranging from 26ºC (79ºF) to 37ºC (99ºF).

  • If you'd rather travel in cooler conditions, look for a cheap flight from Washington DC to Bangkok in December when temperatures average between 19ºC (66ºF) and 33ºC (91ºF).

More about Bangkok

Explore more of Thailand

  • Udon Thani is just one of the many places in Thailand waiting to be discovered once you've seen the sights of Bangkok. Around 467 kilometres to the north-east, popular attractions include Nong Prajak Public Park, Krom Luang Prachaksinlapakhom Monument and Chinesisches Tor.

  • Chon Buri is another sought-after destination in Thailand and is around 64 kilometres south-east of Bangkok. No journey is complete without visiting Wat Ton Son, Forest and Phra Phutthasihing Hall.

Plan the rest of your trip from Washington D.C. to Bangkok

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.