$493 Cheap Flights from Washington (DCA) to Bangkok (BKK)
Popular airlines from Ronald Reagan Washington National Airport (DCA) to Suvarnabhumi Intl. Airport (BKK)
Cathay PacificCathay Pacific
British AirwaysBritish Airways
UnitedUnited
FinnairFinnair
Japan AirlinesJapan Airlines
Qatar AirwaysQatar Airways
Korean AirKorean Air
Cheap Flights from Washington to Bangkok (DCA-BKK)
Alternative airports near Bangkok
Prices were available within the past 7 days. Prices and availability are subject to change.
Find the cheapest month to fly from Washington (DCA) to Bangkok (BKK)
February is typically the cheapest month to flyFebruary is typically the cheapest month to fly
Book with confidence
Washington (DCA) to Bangkok (BKK) at a glance
Travel from Washington (DCA) to Bangkok (BKK) with a range of airlines offering this international long-haul route. Check out various options for flights from Washington to Bangkok to find the best itinerary that aligns with your budget and travel plans. As you prepare to explore Bangkok's renowned attractions and vibrant neighborhoods, gather all the essential details for your journey from Ronald Reagan Washington National Airport (DCA) to Suvarnabhumi International Airport (BKK).
- Fastest flight duration: around 22 hours in-flight, plus roughly 5h 15m total layover with two or more stops
- Route distance: roughly 8,800 miles (14,160 km)
- Flights per week: around 8 departures on average
- Typical fares (one-way): economy tickets often range from $410–$1370, depending on seasonality and how far ahead you book
Flights from Ronald Reagan Washington National Airport (DCA) to Suvarnabhumi International Airport (BKK)
Based on recent traveler bookings, here are the top airlines favored for journeys from Washington to Bangkok, often selected for their multi-stop services. Popular layover options include Hong Kong International Airport (HKG) with a layover of approximately 2 hours and 45 minutes, Incheon International Airport (ICN) at about 2 hours and 30 minutes, and Logan International Airport (BOS) with a 2-hour layover. These choices offer travelers the flexibility to balance price, total travel time, and cabin class for the best itinerary.
- Cathay Pacific: This full-service airline provides multi-stop journeys, with one-way ticket prices generally falling between $625 and $1725. It operates around 30% of flights on this route, featuring an in-flight duration of 22 hours and an overall travel time of approximately 26 hours and 45 minutes, including layovers.
- Korean Air: A reliable full-service option, Korean Air’s multi-stop flights typically have one-way fares ranging from $430 to $1055. It constitutes about 16% of departures on this route, with a flight time of 22 hours and a total travel duration of roughly 26 hours and 45 minutes, accounting for layovers.
- Air India: As a full-service provider, Air India offers multi-stop services with one-way fares usually priced between $410 and $1560. This airline represents around 10% of the departures on this route, featuring an in-flight time of 22 hours and a total trip length of about 26 hours and 45 minutes, including layover times.
- Delta: Delta is a full-service carrier with multi-stop service, offering one-way fares that typically range from $510 to $1305. It covers approximately 7% of the departures on this particular route, with an in-flight duration of 22 hours and a complete travel time of around 26 hours and 45 minutes, factoring in layovers.
- EVA Airways: This full-service airline provides multi-stop flight options, with one-way fares generally between $645 and $1220. EVA Airways accounts for about 6% of the departures on this route, with a flight time of 22 hours and a total journey time of approximately 26 hours and 45 minutes, including layover durations.
Travelers flying from Washington to Bangkok can enhance their journey by upgrading to Emirates' business class service, offering a premium experience on this route.
Alternative route from Washington (DCA) to Bangkok (BKK)
- Washington to Bangkok (IAD-BKK): Located approximately 23 miles from Ronald Reagan Washington National Airport (DCA), Washington Dulles International Airport (IAD) serves as the starting point for this route. One-way economy fares generally fall between $440 and $1150, influenced by the season and when tickets are booked. Travelers can choose from one-stop and multi-stop flights, with common layover points at Hamad International Airport (DOH) and Abu Dhabi International Airport (AUH). Major airlines operating on this route include Qatar Airways and Etihad Airways. Additionally, options for business and first class service are available.
How to find the best prices for flights from Washington (DCA) to Bangkok (BKK)
Getting some of the best deals on flights from Washington to Bangkok is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually available when booking 2 to 8 weeks in advance, although most travelers tend to book within 2 weeks. Morning departures from 5 AM to 12 PM often provide lower prices and are the most popular. Additionally, flying on Tuesday typically offers cheaper rates, while Friday remains the most popular travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Suvarnabhumi International Airport from Ronald Reagan Washington National Airport
Bangkok welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Ronald Reagan Washington National Airport is roughly a 10-minute drive (covering about 5 miles) from central Washington. Bangkok city center is approximately a 20-minute drive (covering about 21 miles) from Suvarnabhumi International Airport, depending on traffic. Here's how to reach Bangkok efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Bangkok, with private rides that can be arranged in advance.
- Car rental: Renting a car from Suvarnabhumi International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Suvarnabhumi International Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Suvarnabhumi International Airport, Suvarnabhumi Airport Station, a metro station, is located about 0.6 miles away on foot, providing convenient access to the city.
Washington to Bangkok Flights
The cheapest times to fly from Washington to Bangkok
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Bangkok are during the month of August. You can find some of the cheapest flights from Washington to Bangkok with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Washington to Bangkok
Sunday is one of the best days to book for cheap flights from Washington to Bangkok: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Washington to Bangkok
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Bangkok in 2026. You can also book with separate airlines for your outbound and return journeys, from $493 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Bangkok flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Bangkok airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently Asked Questions
How much does a flight from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) cost?
You can find cheap one-way flights from $493 and cheap return flights $960 Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) with Expedia. One-way flights typically cost between $659 and $6972, and return flights often range between $1435 and $9760. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
The cheapest month to fly from DCA to BKK is August when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
Enter DCA to BKK and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
Royal Jordanian is one of the cheapest airlines offering connecting flights from Washington, DC (DCA) to Bangkok (BKK) with a layover in John F. Kennedy Intl. (JFK), starting from around $2021. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
The earliest flight from Ronald Reagan Washington National Airport (DCA) to Suvarnabhumi International Airport (BKK) typically departs at around 6:00 AM. This seasonal service is operated by American Airlines and Cathay Pacific, allowing you to start your journey early and make the most of your time in Bangkok. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
The most popular departure times for flights from Washington, DC (DCA) to Bangkok (BKK) are in the early morning, from 6am to 9am. About 33% of passengers prefer this time window. Many major carriers, including Delta Airlines and American Airlines, offer flights during this window. This timing is favored as it allows travelers to start their day early and arrive in Bangkok ready to explore.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
A flight from DCA to BKK with a layover takes around 24 hours 50 minutes, with the route covering approximately 8,805 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
You can fly business class between DCA and BKK. Airlines that offer business class service on this route include:
- Emirates
- Delta Air Lines
- American Airlines
- United Airlines
- Air Canada
First class is available with Emirates.
How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Bangkok from Ronald Reagan Washington National (DCA)?
From Ronald Reagan Washington National (DCA), you can fly into Suvarnabhumi Intl. (BKK) to reach Bangkok. Some flights may connect through major hubs like Logan Intl. (BOS), O'Hare Intl. (ORD), John F. Kennedy Intl. (JFK) before reaching Bangkok. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) Bangkok Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to Bangkok (BKK-Suvarnabhumi Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport | Ronald Reagan Washington National Airport |
|---|---|
Destination airport | Suvarnabhumi Intl. Airport |
Distance | 8,803 miles away |
Airlines serving | Cathay Pacific, British Airways, United, Finnair, Japan Airlines, Qatar Airways, Korean Air, Air Canada, Etihad Airways, American Airlines, Delta, All Nippon Airways, Starlux Airlines, Emirates, Qantas Airways, Alaska Airlines, KLM, China Eastern Airlines, Air France, Gulf Air, LOT-Polish Airlines, Royal Jordanian |
Popular airline | Cathay Pacific |
Roundtrip price | $960 |