฿19,836 Find Cheap Flights to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest return fare
฿28,681
Typical prices: ฿40,290-฿36,063
United Airlines
Mon 21/9Tue 20/10
BKK - IAD • 2 stops
Cheapest one-way flight
฿19,836
Multiple Airlines
Tue 1/9
BKK - BWI • 2 stops
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 4% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 47% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Washington, D.C. that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Washington, D.C.

Mon 21 Sep - Tue 20 Oct
United Airlines Logo
07:00 - 05:25
BKK
-
IAD
33h 25m
2 stops
United Airlines Logo
12:15 - 04:35
IAD
-
BKK
29h 20m
1 stop
฿28,681United Airlines
Mon 21 Sep - Mon 5 Oct
United Airlines Logo
07:00 - 05:25
BKK
-
IAD
33h 25m
2 stops
United Airlines Logo
08:20 - 04:35
IAD
-
BKK
33h 15m
2 stops
฿28,746United Airlines
Mon 21 Sep - Tue 20 Oct
United Airlines Logo
07:00 - 05:25
BKK
-
IAD
33h 25m
2 stops
United Airlines Logo
12:58 - 09:35
IAD
-
BKK
33h 37m
2 stops
฿28,811United Airlines
Sun 20 Sep - Sun 27 Sep
ซาอุเดียแอร์ไลน์ Logo
15:25 - 15:45
BKK
-
IAD
35h 20m
1 stop
ซาอุเดียแอร์ไลน์ Logo
18:50 - 13:45
IAD
-
BKK
31h 55m
1 stop
฿29,591ซาอุเดียแอร์ไลน์
Mon 21 Sep - Mon 5 Oct
Multiple Airlines Logo
19:10 - 17:15
BKK
-
BWI
57h 05m
2 stops
Multiple Airlines Logo
21:30 - 06:55
BWI
-
BKK
46h 25m
2 stops
฿36,290Multiple Airlines
Wed 18 Nov - Wed 9 Dec
Multiple Airlines Logo
20:05 - 18:45
BKK
-
BWI
34h 40m
2 stops
Multiple Airlines Logo
20:35 - 19:55
BWI
-
BKK
35h 20m
2 stops
฿37,038Multiple Airlines
Wed 8 Jul - Wed 15 Jul
Japan Airlines Logo
21:40 - 19:43
BKK
-
BWI
33h 03m
2 stops
Japan Airlines Logo
05:44 - 23:00
BWI
-
BKK
30h 16m
2 stops
฿43,119Japan Airlines
Wed 8 Jul - Wed 15 Jul
Japan Airlines Logo
21:40 - 19:43
BKK
-
BWI
33h 03m
2 stops
Japan Airlines Logo
10:28 - 15:10
BWI
-
BKK
41h 42m
2 stops
฿44,745Japan Airlines
Thu 24 Sep - Mon 28 Sep
Emirates Logo
23:50 - 08:40
DMK
-
IAD
43h 50m
1 stop
Emirates Logo
10:55 - 20:45
IAD
-
DMK
22h 50m
1 stop
฿48,257Emirates
Thu 24 Sep - Mon 28 Sep
Emirates Logo
23:50 - 08:40
DMK
-
IAD
43h 50m
1 stop
Emirates Logo
10:55 - 20:45
IAD
-
DMK
22h 50m
1 stop
฿48,322Emirates
Booking Insights

KAYAK's insights & trends for flights to Washington, D.C.

Get data-powered insights and trends into flights to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Washington, D.C. is April, where tickets cost ฿15,349 on average for return flights. On the other hand, the most expensive months are January and December, where the average cost of tickets from Thailand is ฿36,713 and ฿34,079 respectively. For one-way flights, the best month to travel is June with an average price of ฿13,755.

How far in advance should I book a flight to Washington, D.C.?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure, which saves you about 4% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Washington, D.C. Reagan-National Airport (DCA), with an average flight price of ฿5,351.

Good to know – Book Cheap Washington, D.C. Plane Tickets

Low seasonOctober
Cheapest flight฿19,836
Best time to beat the crowds (35% less expensive on average)
Most popular time to fly (54% more expensive on average)
Flight from Bangkok to Baltimore

When to book flights to Washington, D.C.

Are your dates flexible? Find out the best times to travel to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Washington, D.C. based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Washington, D.C. flights

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    Washington, D.C. is served by 2 major airports. Reagan Washington National Airport (6 km) is the closest to the centre of Washington, D.C. and Washington Dulles Airport is 36 km from the centre.

  • How does KAYAK find such low prices on flights to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Washington, D.C.

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Reviews of the top airlines flying to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Thailand to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
เดลต้าOverall score based on 8406 reviews
8.1Boarding
7.8Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

2.0 MediocreAnonymous, Jun 2026
RDU - LGA
Read more เดลต้า reviews

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Crew helpful. Plenty of food although not great but ok. Good time.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Towson
Fairfax
Arlington
Silver Spring

Everything you need to know for your flight to Washington, D.C.

Cabin class types available on flights to Washington, D.C.

Cabin classes available on flights to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.