What are the cheapest airlines to fly from Thailand to Washington, D.C. Reagan-National Airport one-way?

The cheapest airlines for a one-way flight from Thailand to Washington, D.C. Reagan-National Airport are Air Canada ($651), Philippine Airlines ($736), and American Airlines ($762).

What is the cheapest month to book a flight from Thailand to Washington, D.C. Reagan-National Airport?

Currently, September is the cheapest month in which you can book a flight from Thailand to Washington, D.C. Reagan-National Airport (average of $273). Flying from Thailand to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $340). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far in advance should I book a flight from Thailand to Washington, D.C. Reagan-National Airport?

To save on the cost of your flight from Thailand to Washington, D.C. Reagan-National Airport, book at least 51 days before your planned departure. Booking around this time can save you about 9% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,042 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,162.

What is the cheapest month to fly from Thailand to Washington, D.C. Reagan-National Airport?

Flights from Thailand to Washington, D.C. Reagan-National Airport lean towards being more expensive in August. Prices are generally better when you fly from Thailand to Washington, D.C. Reagan-National Airport in May, with the cheapest ticket starting at $968.

What is the cheapest time of day to fly from TH to DCA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thailand to Washington, D.C. Reagan-National Airport as you normally would.

Can I find deals for flights from Thailand to Reagan-National that include hotel bookings?

Yes. In addition to deals on Thailand to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Thailand to Reagan-National?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Reagan-National.

Can I find deals for business class flights from Thailand to Reagan-National?

Yes. Cheapflights offers flight deals from Thailand to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$1,998+ Flights from Thailand to Washington, D.C. Reagan-National Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Thailand to Reagan-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Thailand to Reagan-National

Round-trip from	$1,090 (United Airlines)
One-way from	$619 (Kiwi.com)

From Thailand to Washington, D.C. Reagan-National

Search Deals

One-way flight from Thailand to Washington, D.C. Reagan-National

Search Deals

Find flight deals from Thailand to Reagan-National

Cheapest flights from Thailand to Reagan-National
Explore the most affordable flight options available from Thailand to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Sat 12/2812:15 amCNX - DCA

2 stops26h 19mDelta

Sun 1/510:00 pmDCA - CNX

2 stops37h 05mDelta

Deal found 12/18

$1,695

Fri 12/272:00 amBKK - DCA

2 stops32h 40mQatar Airways

Mon 2/36:00 pmDCA - BKK

2 stops30h 50mQatar Airways

Deal found 12/18

$1,797

Wed 12/2511:40 amBKK - DCA

2 stops33h 44mCathay Pacific

Mon 1/139:29 amDCA - BKK

2 stops38h 36mCathay Pacific

Deal found 12/18

$1,825

Mon 12/238:05 amBKK - DCA

2 stops24h 43mJapan Airlines

Wed 1/156:55 amDCA - BKK

2 stops34h 10mJapan Airlines

Deal found 12/18

$4,258

Tue 12/249:30 pmBKK - DCA

2 stops28h 51mDelta

Thu 1/167:59 amDCA - BKK

2 stops28h 46mDelta

Deal found 12/18

$4,679

Mon 12/239:55 amBKK - DCA

2 stops24h 45mAmerican Airlines

Mon 1/138:00 amDCA - BKK

2 stops27h 35mAmerican Airlines

Deal found 12/18

$4,685

Sun 12/2210:05 pmBKK - DCA

2 stops28h 50mMultiple Airlines

Tue 1/76:55 amDCA - BKK

2 stops28h 40mMultiple Airlines

Deal found 12/18

$4,709

Best flights from Thailand to Reagan-National
Discover carefully curated flight deals from Thailand to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 19, 2024.

Sun 1/267:10 amBKK - DCA

2 stops26h 49mUnited Airlines

Sat 2/159:00 amDCA - BKK

2 stops27h 05mUnited Airlines

Deal found 12/18

$1,090

Sat 2/19:55 amBKK - DCA

2 stops24h 44mJapan Airlines

Sun 8/36:59 amDCA - BKK

2 stops35h 51mJapan Airlines

Deal found 12/18

$1,184

Wed 4/28:05 amBKK - DCA

2 stops24h 03mAir Canada

Wed 10/16:00 amDCA - BKK

2 stops28h 55mAir Canada

Deal found 12/18

$1,185

Thu 2/131:00 amBKK - DCA

2 stops25h 59mDelta

Thu 2/276:59 amDCA - BKK

2 stops29h 46mDelta

Deal found 12/19

$1,325

Sat 3/297:50 amBKK - DCA

2 stops26h 32mFinnair

Sun 9/287:45 pmDCA - BKK

2 stops46h 45mFinnair

Deal found 12/18

$1,416

Fri 3/289:55 amBKK - DCA

2 stops23h 41mMultiple Airlines

Mon 4/216:50 pmDCA - BKK

3 stops33h 00mMultiple Airlines

Deal found 12/18

$1,452

Tue 2/1812:15 amCNX - DCA

2 stops34h 04mKorean Air

Wed 2/266:59 amDCA - CNX

2 stops28h 06mKorean Air

Deal found 12/18

$1,546

Wed 4/302:30 amBKK - DCA

2 stops27h 23mQatar Airways

Thu 5/86:00 pmDCA - BKK

2 stops32h 10mQatar Airways

Deal found 12/19

$1,632

Sat 3/297:15 pmBKK - DCA

2 stops25h 44mCathay Pacific

Sat 9/277:45 pmDCA - BKK

2 stops28h 45mCathay Pacific

Deal found 12/18

$2,077

Sun 12/293:20 pmCNX - DCA

2 stops32h 16mDelta

Sun 1/510:00 pmDCA - CNX

2 stops37h 05mDelta

Deal found 12/18

$1,820

Sat 2/112:00 pmBKK - DCA

3 stops44h 59mSingapore Airlines

Sun 8/39:30 amDCA - BKK

3 stops36h 05mSingapore Airlines

Deal found 12/18

$4,597

Mon 3/247:10 amBKK - DCA

2 stops24h 47mANA

Thu 5/83:30 pmDCA - BKK

2 stops26h 05mANA

Deal found 12/18

$4,655

Last-minute flights from Thailand to Reagan-National
Discover last-minute flight deals from Thailand to Reagan-National. Data last updated December 19, 2024 and is based on user searches.

Mon 12/239:55 amBKK - DCA

2 stops24h 45mAmerican Airlines

Mon 1/138:00 amDCA - BKK

2 stops27h 35mAmerican Airlines

Deal found 12/18

$4,685

Tue 12/249:30 pmBKK - DCA

2 stops28h 51mDelta

Thu 1/167:59 amDCA - BKK

2 stops28h 46mDelta

Deal found 12/18

$4,679

Tue 12/2410:05 pmBKK - DCA

2 stops28h 19mAmerican Airlines

Mon 1/67:29 amDCA - BKK

2 stops28h 06mAmerican Airlines

Deal found 12/18

$4,685

Tue 12/2410:05 pmBKK - DCA

2 stops28h 54mMultiple Airlines

Tue 1/148:00 amDCA - BKK

2 stops27h 35mMultiple Airlines

Deal found 12/18

$4,701

Wed 12/2511:40 amBKK - DCA

2 stops33h 44mCathay Pacific

Mon 1/139:29 amDCA - BKK

2 stops38h 36mCathay Pacific

Deal found 12/18

$1,825

Wed 12/258:05 amBKK - DCA

2 stops25h 54mJapan Airlines

Tue 1/148:00 amDCA - BKK

2 stops27h 35mJapan Airlines

Deal found 12/18

$4,704

Fri 12/272:00 amBKK - DCA

2 stops32h 40mQatar Airways

Mon 2/36:00 pmDCA - BKK

2 stops30h 50mQatar Airways

Deal found 12/18

$1,797

Sat 12/2812:15 amCNX - DCA

2 stops26h 19mDelta

Sun 1/510:00 pmDCA - CNX

2 stops37h 05mDelta

Deal found 12/18

$1,695

Wed 1/81:00 amBKK - DCA

2 stops23h 49mDelta

Tue 1/146:09 amDCA - BKK

2 stops29h 11mDelta

Deal found 12/18

$2,024

Wed 1/158:35 amBKK - DCA

2 stops37h 54mAir Canada

Thu 2/136:00 amDCA - BKK

2 stops36h 15mAir Canada

Deal found 12/18

$1,370

Thu 1/163:15 pmBKK - DCA

2 stops34h 06mANA

Mon 1/278:30 amDCA - BKK

2 stops32h 40mANA

Deal found 12/18

$4,817

Fri 1/173:00 pmBKK - DCA

2 stops43h 39mFinnair

Tue 2/187:05 pmDCA - BKK

2 stops47h 00mFinnair

Deal found 12/18

$1,611

One-way flights from Thailand to Reagan-National
Search for one-way flight options from Thailand to Reagan-National. Find affordable one-way fares based on user searches. Data last updated December 19, 2024.

Tue 12/246:45 pmBKK - DCA

3 stops53h 23mMultiple Airlines

Deal found 12/18

$619

Wed 2/1210:50 pmCNX - DCA

3 stops34h 10mMultiple Airlines

Deal found 12/18

$627

Thu 1/238:00 amBKK - DCA

2 stops38h 29mAir Canada

Deal found 12/18

$651

Sun 4/2710:55 pmBKK - DCA

2 stops52h 34mPhilippine Airlines

Deal found 12/19

$736

Tue 12/2410:05 pmBKK - DCA

2 stops28h 54mAmerican Airlines

Deal found 12/18

$762

Tue 12/249:55 amBKK - DCA

2 stops42h 34mJapan Airlines

Deal found 12/18

$767

Tue 3/258:10 amBKK - DCA

2 stops45h 38mQatar Airways

Deal found 12/18

$904

Sun 3/231:00 amBKK - DCA

2 stops29h 17mDelta

Deal found 12/17

$906

Tue 2/1112:15 amCNX - DCA

2 stops31h 45mDelta

Deal found 12/17

$906

Fri 5/99:35 amBKK - DCA

3 stops41h 32mUnited Airlines

Deal found 12/18

$946

Wed 1/221:00 amBKK - DCA

2 stops29h 00mKorean Air

Deal found 12/18

$1,004

Sun 1/127:50 amBKK - DCA

2 stops26h 49mFinnair

Deal found 12/17

$1,073

Find flights from Thailand to Reagan-National within your budget

Fly from

Fly to

Route

Depart

Return

Price

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sun 1/26

7:10 am-9:59 pm

2 stops26h 49m

Washington, D.C. Reagan-National

Sat 2/15

9:00 am-12:05 am

2 stops27h 05m

$1,090

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 2/1

9:55 am-10:39 pm

2 stops24h 44m

Washington, D.C. Reagan-National

Sun 8/3

6:59 am-5:50 am

2 stops35h 51m

$1,184

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 4/2

8:05 am-9:08 pm

2 stops24h 03m

Washington, D.C. Reagan-National

Wed 10/1

6:00 am-9:55 pm

2 stops28h 55m

$1,185

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Thu 2/13

1:00 am-2:59 pm

2 stops25h 59m

Washington, D.C. Reagan-National

Thu 2/27

6:59 am-12:45 am

2 stops29h 46m

$1,325

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 3/29

7:50 am-11:22 pm

2 stops26h 32m

Washington, D.C. Reagan-National

Sun 9/28

7:45 pm-5:30 am

2 stops46h 45m

$1,416

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Fri 3/28

9:55 am-10:36 pm

2 stops23h 41m

Washington, D.C. Reagan-National

Mon 4/21

6:50 pm-2:50 pm

3 stops33h 00m

$1,452

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Tue 2/18

12:15 am-10:19 pm

2 stops34h 04m

Washington, D.C. Reagan-National

Wed 2/26

6:59 am-11:05 pm

2 stops28h 06m

$1,546

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Wed 4/30

2:30 am-6:53 pm

2 stops27h 23m

Washington, D.C. Reagan-National

Thu 5/8

6:00 pm-1:10 pm

2 stops32h 10m

$1,632

Chiang MaiWashington, D.C.

CNX - DCA

CNXDCA

Chiang Mai

Sun 12/29

3:20 pm-11:36 am

2 stops32h 16m

Washington, D.C. Reagan-National

Sun 1/5

10:00 pm-11:05 pm

2 stops37h 05m

$1,820

BangkokWashington, D.C.

BKK - DCA

BKKDCA

Bangkok Suvarnabhumi

Sat 3/29

7:15 pm-9:59 am

2 stops25h 44m

Washington, D.C. Reagan-National

Sat 9/27

7:45 pm-11:30 am

2 stops28h 45m

$2,077

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 32 results

Best time to book a flight from Thailand to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Thailand with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Thailand to Reagan-National

Get recent, data-driven insights about flights from Thailand to Reagan-National including ideal travel times, pricing trends, and more.

Rainfall in Reagan-National by month

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Reagan-National

To help decide which airline to fly from Thailand to Washington, D.C., see what other customers have to say about Korean Air, Japan Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air

8.4

Very good

1,021 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

ANA

8.4

Very good

839 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Japan Airlines

8.3

Very good

1,442 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Emirates

8.1

Very good

3,410 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Singapore Airlines

8.1

Very good

1,331 reviews

Korean Air

8.4

Very good

1,021 reviews

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

What are the cheapest airlines to fly from Thailand to Washington, D.C. Reagan-National Airport one-way?
The cheapest airlines for a one-way flight from Thailand to Washington, D.C. Reagan-National Airport are Air Canada ($651), Philippine Airlines ($736), and American Airlines ($762).
Can I find deals for flights from Thailand to Reagan-National that include hotel bookings?
Yes. In addition to deals on Thailand to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Thailand to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Reagan-National.
Can I find deals for business class flights from Thailand to Reagan-National?
Yes. Cheapflights offers flight deals from Thailand to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Thailand to Washington, D.C. Reagan-National Airport?
Currently, September is the cheapest month in which you can book a flight from Thailand to Washington, D.C. Reagan-National Airport (average of $273). Flying from Thailand to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $340). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Thailand to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
Japan Airlines	Cheapest$1,020	Average$1,223	FlexibilityNo cancel fee	On-time79%
ANA	Cheapest$1,404	Average$1,404	FlexibilityNo cancel fee	On-time80%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$619+ Cheap flights from Thailand to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Thailand to Reagan-National with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Thailand to Reagan-National

Round-trip from

One-way from

Find flight deals from Thailand to Reagan-National

Cheapest flights from Thailand to Reagan-NationalExplore the most affordable flight options available from Thailand to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Explore the most affordable flight options available from Thailand to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

Find flights from Thailand to Reagan-National within your budget

Best time to book a flight from Thailand to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Thailand with our price prediction graph.

Travel insights for flights from Thailand to Reagan-National

Get recent, data-driven insights about flights from Thailand to Reagan-National including ideal travel times, pricing trends, and more.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

Reviews of airlines servicing Reagan-National

To help decide which airline to fly from Thailand to Washington, D.C., see what other customers have to say about Korean Air, Japan Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Thailand to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Thailand to Washington, D.C. Reagan-National Airport one-way?

Can I find deals for flights from Thailand to Reagan-National that include hotel bookings?

How can I find direct flights from Thailand to Reagan-National?

Can I find deals for business class flights from Thailand to Reagan-National?

What is the cheapest month to book a flight from Thailand to Washington, D.C. Reagan-National Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Thailand to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Thailand to Reagan-National

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Thailand to Reagan-National
Explore the most affordable flight options available from Thailand to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.