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C$629 Cheap Flights from Washington Dulles (IAD) to Bangkok (BKKT)

Compare Washington Dulles to Bangkok flight deals

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Flight deals from Washington Dulles to Bangkok

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Bangkok? If you want to travel next month, return fares start from C$1,491. Find the lowest prices on one-way and return tickets right here.
Bangkok.C$629 per passenger.Departing Tue., Aug. 4.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Washington Dulles on Tue., Aug. 4, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$629, select.
Bangkok.C$655 per passenger.Departing Fri., Sep. 4.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Washington Dulles on Fri., Sep. 4, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$655, select.
Bangkok.C$665 per passenger.Departing Thu., Oct. 1.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Washington Dulles on Thu., Oct. 1, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$665, select.
Bangkok.C$677 per passenger.Departing Tue., Nov. 17.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Washington Dulles on Tue., Nov. 17, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$677, select.
Bangkok.C$688 per passenger.Departing Wed., Jul. 29.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Washington Dulles on Wed., Jul. 29, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$688, select.
Bangkok.C$694 per passenger.Departing Tue., Feb. 9.One-way flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Washington Dulles on Tue., Feb. 9, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$694, select.
Bangkok.C$694 per passenger.Departing Sun., Jan. 10.One-way flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Washington Dulles on Sun., Jan. 10, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$694, select.
Bangkok.C$697 per passenger.Departing Thu., Apr. 8.One-way flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Washington Dulles on Thu., Apr. 8, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$697, select.
Bangkok.C$700 per passenger.Departing Mon., Mar. 1.One-way flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Washington Dulles on Mon., Mar. 1, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$700, select.
Bangkok.C$805 per passenger.Departing Sun., Dec. 6.One-way flight with ITA Airways.Outbound indirect flight with ITA Airways, departs from Washington Dulles on Sun., Dec. 6, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$805, select.
Bangkok.C$849 per passenger.Departing Sun., Jun. 28.One-way flight with Air Premia.Outbound indirect flight with Air Premia, departs from Washington Dulles on Sun., Jun. 28, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$849, select.
Bangkok.C$1,007 per passenger.Departing Tue., May 26.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Washington Dulles on Tue., May 26, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$1,007, select.
Bangkok.C$1,409 per passenger.Departing Wed., May 12.One-way flight with Emirates.Outbound indirect flight with Emirates, departs from Washington Dulles on Wed., May 12, arriving in Bangkok Suvarnabhumi.Price includes taxes and charges.From C$1,409, select.

Find the cheapest month to fly from Washington Dulles to Bangkok

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Bangkok flights are currently cheapest in August.
May
from C$1,007
Jun.
from C$849
Jul.
from C$688
Aug.
from C$629
Sep.
from C$655
Oct.
from C$665
Nov.
from C$677
Dec.
from C$805
Jan.
from C$694
Feb.
from C$694
Mar.
from C$700
Apr.
from C$697

Alternative Washington Dulles to Bangkok routes

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

Don Mueang

21km from central Bangkok
Closest
from C$796
Search flights

Bangkok Suvarnabhumi

29km from central Bangkok
Cheapest
from C$629
Search flights

Washington D.C. to Bangkok: Flight information

The things to know before you go.
Cheapest flight foundC$629
Cheapest month to flyAugust

Finding cheap flights from Washington Dulles 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 Dulles to Bangkok is C$1,193. 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 Dulles to Bangkok. But we found flights with one or more stops from C$1,193.
As of May 2026, there are no flights flying from Washington Dulles to Bangkok.
The cheapest month to fly from Washington Dulles to Bangkok is usually August.
If you're flying from Washington Dulles Airport, 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 C$1,193.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Bangkok on Thursday, August 27, 2026.
No airlines currently offer direct flights between Washington Dulles Airport 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 May, the average temperature is usually around 30°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.
Currently, Etihad Airways offers the cheapest flight tickets to Bangkok.

Travelling from Washington Dulles International Airport (IAD) to Bangkok: what you need to know

  • The timezone in Bangkok is UTC+7. The city is 11 hours ahead of Washington DC, where Washington Dulles International Airport is located.

  • To ensure you catch your flight from IAD to Bangkok, leave plenty of time to navigate the airport and find your gate. Arriving two hours before international departures and one hour before domestic flights is the standard rule.

  • Travelling during a peak month like July? Popular periods (like spring break, summer and Thanksgiving) can easily add another hour at check-in and security. Be extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • Stopovers are the perfect opportunity to break up your journey — and perhaps even tour another city. When searching for flights from IAD to Bangkok, deselect the 'Direct flights only' box to see where you can stop along the way. Some popular options include:

    • London Heathrow Airport (LHR)

    • Charles de Gaulle Airport (CDG)

    • Indira Gandhi International Airport (DEL)

  • To visit Thailand for tourism purposes, you will require an e-visa if you hold a passport from United States. However, visa rules can change and you may need other documents depending on the duration and purpose of your visit. Always check the most up-to-date guidelines before booking your cheap ticket from Washington Dulles International Airport to Bangkok.

  • Travelling from central Washington DC to IAD takes approximately 3 hours and 26 minutes on public transport. If you ride-share, drive or grab a cab, you'll cover the 56 kilometres in 51 minutes or so, depending on traffic.

  • Want a handy hotel close to IAD? If you're boarding an early flight from Washington Dulles International Airport to Bangkok, these stays will put you moments from your check-in counter:

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Bangkok

  • C$629 is the cheapest price we've seen for a one-way ticket from Washington Dulles International Airport to Bangkok. For a return flight on this route, the best price is C$1,193. Depending on the availability when you book, these fares may change.

  • To score cheap tickets from IAD to Bangkok, book as early as possible. Airlines usually offer their most competitively priced fares when flights are first made available.

  • Finding cheap tickets from Washington Dulles International Airport to Bangkok is easier if you're flexible with your travel plans. Check out the 'Whole month' search tool to show the best prices across the month and bag a great deal.

  • Locking in a cheap ticket from IAD to Bangkok couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when the price has dropped.

  • Use the filters to tailor your flights from Washington Dulles International Airport to Bangkok. Simply select your ideal arrival and departure times, airlines and number of stops. Or sort your results by 'Cheapest' to find the best deals.

Airports in Bangkok

Suvarnabhumi Airport (BKK)

  • Suvarnabhumi Airport (BKK) is around 32 kilometres from the centre of Bangkok. With your own car rental or in a cab, the drive is around 35 minutes.

  • If you're travelling by public transport, expect a journey of about 1 hour and 6 minutes.

  • If you're arriving on a late flight from Washington Dulles International Airport to Bangkok, nothing beats the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and sleeping soon after at one of these accommodation options near BKK:

Don Mueang International Airport (DMK)

  • Once your flight from Washington Dulles International Airport to Bangkok has arrived, you can make your way to the city centre in around 30 minutes by car. Central Bangkok is approximately 27 kilometres from Don Mueang International Airport (DMK).

  • You can also opt for public transport, which will take approximately 1 hour and 5 minutes.

  • Hang up the 'Do not disturb' sign and unwind at a hotel close to DMK. Here are a few options where you can kick back after your flight from IAD to Bangkok:

Best time to go to Bangkok

  • July is the most popular month to hop on a flight from Washington Dulles International Airport to Bangkok while April is the quietest. To work out the best time to visit Bangkok, consider the pace you prefer to travel at.

  • Lock in your flight from Washington Dulles International Airport to Bangkok for April to experience the city during its warmest month. You can expect temperatures to range from 26ºC to 37ºC.

  • December has average temperatures of between 19ºC and 33ºC. Search for cheap flights from IAD to Bangkok around that time if you want to travel in cooler conditions.

More about Bangkok

  • Once you've booked your flight from Washington Dulles International Airport to Bangkok, think about where you'll stay in this city. Make one of these accommodation options your base for exploring Bangkok:

  • Grand Palace and Wat Arun are just two of the top attractions to put on your Bangkok must-do list. Keep the momentum going by heading to Wat Phra Kaew.

Complete your Bangkok trip with a car rental

  • Finding you a cheap flight from Washington Dulles International Airport to Bangkok isn't our only cool trick. Check out our car rentals in Bangkok and explore the city on your own terms. We search for deals from trusted car rental providers and put them all in one place. You can instantly compare offers and then book with no fees.

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.