Question 1

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

Accepted Answer

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $1,078 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Washington, D.C. for as low as $963 on momondo.

Question 2

Which layover airport offers the lowest fares from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Accepted Answer

Flights via Beijing (PEK) offer the lowest average round-trip price of $643.

Question 3

What is the cheapest airline that flies from Washington, D.C. to Bangkok Suvarnabhumi?

Accepted Answer

Etihad Airways, Qatar Airways, and United Airlines are the most popular carriers operating from Washington, D.C. to Bangkok Suvarnabhumi

Question 4

How long does it take to fly to Bangkok Suvarnabhumi Airport?

Accepted Answer

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Bangkok Suvarnabhumi Airport you fly into. For example, flying from Washington, D.C. to Bangkok Suvarnabhumi Airport takes 22h 24m on average. On the other hand, flying from Baltimore to Bangkok Suvarnabhumi Airport takes 27h 29m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Question 5

Which layover airport has the shortest travel time from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Accepted Answer

Flights connecting via Dubai (DXB) have the shortest average one-way travel time: 20h 10m.

Question 6

What airlines fly to Bangkok Suvarnabhumi Airport?

Accepted Answer

Qatar Airways, Etihad Airways and United Airlines are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Washington, D.C. according to our data. Qatar Airways is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 16 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

Question 7

Which airport is the most popular layover for flights between Washington, D.C. and Bangkok Suvarnabhumi Airport?

Accepted Answer

Doha (DOH) was the most common stop: 35% of momondo users choosing 1-stop flights on this route connected there.

Question 8

Which layover airport has the shortest connection time from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Accepted Answer

Dubai (DXB) has the shortest average layover time for this route: 1h 21m.

Question 9

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

Accepted Answer

The month of September is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Washington, D.C., with most prices found around $917. The month of April is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Washington, D.C. averaging around $934.

Question 10

How have Washington, D.C. to Bangkok Suvarnabhumi Airport flight prices changed over time?

Accepted Answer

As of April 2026, prices for Washington, D.C. to Bangkok Suvarnabhumi Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

Question 11

What is the typical price of a round-trip flight between Washington, D.C. and Bangkok Suvarnabhumi Airport?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $1,179 to $856.
The lowest price recently found on this route was $848.

Question 12

What is the best way to get in and out of airports in Washington, D.C and Bangkok?

Accepted Answer

If you will be departing from Washington Dulles International Airport for your flight from Washington, D.C. to Bangkok, one of the best ways to get from downtown Washington, D.C. to the airport is on the Metro Washington, D.C. Line 5A bus, which offers direct service from downtown Washington, D.C. to Washington Dulles International Airport. If you will be departing from Washington Reagan-National for Washington, D.C. to Bangkok flights, Metro Washington, D.C. Blue Line train is a good way to get to the airport from downtown Washington, D.C. Finally, if you will be taking one-way flights out of Baltimore/Washington from Washington, D.C. to Bangkok, a good option is to take the Northeast Regional Train to the BWI Amtrak/MARC Station, and then take the airport shuttle bus from that station to the airport. One option for getting to the center of Bangkok from the airport after cheap flights from Washington, D.C. to Bangkok is on the Airport Rail Link City Line, which offers service to downtown Bangkok from the airport terminal building. You can also ride on the bus service operated by Airport LimoBus Express to get directly from the airport terminal building to the center of town.

Which cities can you get to from Bangkok Suvarnabhumi?

In addition to being a good airport choice for those travelers who are heading to the center of Bangkok, this airport also serves a number of communities in smaller towns that surround Bangkok. These include Nakhon Pathom, Samut Songkhram, Chon Buri, Rayong, Supja Buri, Nakhon Nayok, and Ratchaburi.

Question 13

Which airlines fly direct from Washington D.C. to Bangkok?

Accepted Answer

Unfortunately, there are no direct flights from Washington, D.C. to Bangkok. However, there are a number of excellent one- and two-stop flights from Washington D.C. to Bangkok that can make this trip quite convenient. Etihad Airways offers a one-stop flight from Washington Dulles International Airport (IAD) to Bangkok Suvarnabhumi (BKK) with a layover at Abu Dhabi International (AUH). If you would prefer to depart from Washington Reagan-National Airport (DCA), Qatar Airways offers a two-stop flight with layovers at Chicago O' Hare International Airport (ORD) and Doha Hamad International (DOH). Finally, if you would like to travel from Baltimore/Washington Airport (BWI), there is a two-stop flight on Qatar Airways that has layovers at Chicago O' Hare International Airport and Doha Hamad International.

Question 14

What are the benefits of the different airports in Washington, D.C and Bangkok?

Accepted Answer

Because there are three different airports in the Washington, D.C. area that all offer service to the airport in Bangkok, the choice of which one to use really comes down to the airport that is most convenient for you, depending on your departure point in the Washington, D.C. area. Since the shortest flight route generally departs from Washington Dulles International Airport, this is usually the most convenient airport to use, but since it is located well to the west of Washington, D.C., this may not be a good choice for you if you live east of the Washington, D.C. area. If you live in downtown Washington, D.C., by far the most convenient airport for you will be Washington Reagan-National, and if you live in the suburbs anywhere to the north and east of Washington, D.C., then Baltimore/Washington will likely be a good airport choice for you. One of the nice features at the airport in Bangkok is that there is a hotel that has a location right on the airport property, plus all of the major car rental companies have a location right at the airport.

Question 15

When did momondo last update prices for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Accepted Answer

Prices for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport refresh daily.

Question 16

How many operators does momondo search for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Accepted Answer

There are 16 operators available for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport as of April 2026.

Question 17

How old do you have to be to fly from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Bangkok Suvarnabhumi Airport.

Question 18

What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

Accepted Answer

The travel and health documents you'll need for your trip to Bangkok Suvarnabhumi Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bangkok Suvarnabhumi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Fastest flight time	20h 45m
Direct flights	None

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom $565	Free Cancellation	Rating 7.3 146 reviews	Search Air China flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.2 85 reviews	Search AIR PREMIA flights
Etihad Airways	PriceFrom $785	Free Cancellation	Rating 7.3 1,429 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,204 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $823	Free Cancellation	Rating 7.4 3,725 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $835	Free Cancellation	Rating 7.3 4,305 reviews	Search Turkish Airlines flights
ANA	PriceFrom $893	Free Cancellation	Rating 8.4 1,171 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,929 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 7.9 12,226 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $933	Free Cancellation	Rating 7.4 9,577 reviews	Search United Airlines flights

Cheap flights from Washington, D.C. to Bangkok from $437

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Bangkok departing on 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Washington, D.C. to Bangkok

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Etihad Airways flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Our best Etihad Airways deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets

Qatar Airways flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Our best Qatar Airways deals on Washington, D.C. to Bangkok Suvarnabhumi Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Bangkok Suvarnabhumi Airport that are best for you.

See travel insights to Bangkok from

How to get the cheapest flight ticket from Washington, D.C. to Bangkok Suvarnabhumi Airport

What is the typical price of a round-trip flight between Washington, D.C. and Bangkok Suvarnabhumi Airport?

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

How have Washington, D.C. to Bangkok Suvarnabhumi Airport flight prices changed over time?

What is the cheapest airline that flies from Washington, D.C. to Bangkok Suvarnabhumi?

What airlines fly to Bangkok Suvarnabhumi Airport?

Which airport is the most popular layover for flights between Washington, D.C. and Bangkok Suvarnabhumi Airport?

Which layover airport offers the lowest fares from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Which layover airport has the shortest travel time from Washington, D.C. to Bangkok Suvarnabhumi Airport?

Which layover airport has the shortest connection time from Washington, D.C. to Bangkok Suvarnabhumi Airport?

How long does it take to fly to Bangkok Suvarnabhumi Airport?

When to book flights from Washington, D.C. to Bangkok Suvarnabhumi Airport

Cheap Washington, D.C. to Bangkok Suvarnabhumi Airport (WAS to BKK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Bangkok Suvarnabhumi Airport

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. to Bangkok Suvarnabhumi Airport

Best airlines flying from Washington, D.C. to Bangkok Suvarnabhumi Airport

Compare and see reviews for airlines that fly from Washington, D.C. to Bangkok Suvarnabhumi Airport with momondo

Traveling to a place near Bangkok?

Why use momondo?

An easier way to manage your Bangkok Suvarnabhumi Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Bangkok

Popular cities in Thailand

Popular flights according to clicks in the last 7 days on momondo

Washington, D.C. flight routes

According to popular flight searches on momondo this year

Bangkok Suvarnabhumi Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Bangkok

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Bangkok

List of cabin classes available on flights landing in Bangkok. Availability may vary depending on flight origin and airline.

Complete your trip to Bangkok

Explore popular destinations other users love

According to popular flight searches on momondo this year