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 $1,166 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 $1,052 on momondo.

Question 2

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

Accepted Answer

Flights connecting via Doha (DOH) have the shortest average one-way travel time: 22h 27m.

Question 3

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

Accepted Answer

As of December 2025, prices for Washington, D.C. to Bangkok Suvarnabhumi Airport flights are approximately 45% cheaper when compared to flights at the same time last year.

Question 4

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: 39% of momondo users choosing 1-stop flights on this route connected there.

Question 5

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 $602.

Question 6

What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?

Accepted Answer

The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Saturday when prices can be found for as low as $1,210. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,354.

Question 7

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

Accepted Answer

Japan Airlines, Delta, and Korean Air are the most popular carriers operating from Washington, D.C. to Bangkok Suvarnabhumi

Question 8

Can stopping save me money on Washington, D.C. to Bangkok Suvarnabhumi Airport flights?

Accepted Answer

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. to Bangkok Suvarnabhumi Airport flight.

Question 9

What airlines fly to Bangkok Suvarnabhumi Airport?

Accepted Answer

Qatar Airways, Etihad Airways and Turkish 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 45% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 18 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

Question 10

What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?

Accepted Answer

Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the evening. Flights from Washington, D.C. to Bangkok Suvarnabhumi Airport during this time can be as low as $1,143. In the morning is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $1,365 per ticket.

Question 11

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 23h 35m on average. On the other hand, flying from Baltimore to Bangkok Suvarnabhumi Airport takes 26h 35m 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 12

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 $1,267 to $2,463.
The lowest price recently found on this route was $876.

Question 13

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

Accepted Answer

Incheon (ICN) has the shortest average layover time for this route: 2h 58m.

Question 14

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 $963. The month of October is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Washington, D.C. averaging around $1,025.

Question 15

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 16

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 17

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 18

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 19

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

Accepted Answer

There are 18 operators available for flights from Washington, D.C. to Bangkok Suvarnabhumi Airport as of December 2025.

Question 20

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 21

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
United Airlines	PriceFrom $216	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Air China	PriceFrom $565	Free Cancellation	Rating 7.2 127 reviews	Search Air China flights
Air India	PriceFrom $702	Free Cancellation	Rating 5.5 2,947 reviews	Search Air India flights
Etihad Airways	PriceFrom $797	Free Cancellation	Rating 7.4 1,331 reviews	Search Etihad Airways flights
Korean Air	PriceFrom $802	Free Cancellation	Rating 8.4 1,184 reviews	Search Korean Air flights
Qatar Airways	PriceFrom $839	Free Cancellation	Rating 7.4 3,677 reviews	Search Qatar Airways flights
Turkish Airlines	PriceFrom $874	Free Cancellation	Rating 7.3 4,089 reviews	Search Turkish Airlines flights
ANA	PriceFrom $895	Free Cancellation	Rating 8.4 1,021 reviews	Search ANA flights
JetBlue	PriceFrom $900	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
Alaska Airlines	PriceFrom $920	Free Cancellation	Rating 8.0 11,431 reviews	Search Alaska Airlines flights

Cheap flights from Washington, D.C. to Bangkok from $378

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 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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?

What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?

What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?

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

Can stopping save me money on Washington, D.C. to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 14% on your flight if you consider stops on a Washington, D.C. to Bangkok Suvarnabhumi Airport flight.

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

As of December 2025, prices for Washington, D.C. to Bangkok Suvarnabhumi Airport flights are approximately 45% cheaper when compared to flights at the same time last year.

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

Japan Airlines, Delta, and Korean Air are the most popular carriers operating 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?

Doha (DOH) was the most common stop: 39% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Beijing (PEK) offer the lowest average round-trip price of $602.

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

Flights connecting via Doha (DOH) have the shortest average one-way travel time: 22h 27m.

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

Incheon (ICN) has the shortest average layover time for this route: 2h 58m.

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

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

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

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