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Cheap flights from Washington, D.C. Dulles Intl Airport to Thailand from $429

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. Dulles Intl Airport to Thailand departing on 9/8. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Thailand

Cheap round-trip flights

Air China Logo
11:00 pm - 6:05 pmIAD-BKK
32h 05m1 stop
Air China Logo
7:30 pm - 6:30 pmBKK-IAD
35h 00m1 stop
$887Air China
Find Deal
Tue, Oct 28 - Mon, Nov 10
Turkish Airlines Logo
2:30 pm - 4:20 amIAD-BKK
26h 50m1 stop
Turkish Airlines Logo
10:10 am - 7:15 pmBKK-IAD
45h 05m1 stop
$888Turkish Airlines
Find Deal
Tue, Oct 28 - Mon, Nov 10
Etihad Airways Logo
10:05 pm - 7:20 amIAD-BKK
22h 15m1 stop
Etihad Airways Logo
9:30 am - 4:10 pmBKK-IAD
41h 40m1 stop
$893Etihad Airways
Find Deal
Mon, Aug 25 - Mon, Sep 8
Qatar Airways Logo
11:00 am - 7:50 pmIAD-BKK
21h 50m1 stop
Qatar Airways Logo
2:30 am - 3:40 pmBKK-IAD
24h 10m1 stop
$896Qatar Airways
Find Deal
Thu, Aug 28 - Thu, Sep 11
Etihad Airways Logo
10:05 pm - 6:30 amIAD-BKK
21h 25m1 stop
Etihad Airways Logo
2:55 am - 4:10 pmBKK-IAD
24h 15m1 stop
$900Etihad Airways
Find Deal
Sun, Sep 14 - Thu, Sep 18
Qatar Airways Logo
11:00 am - 7:20 pmIAD-BKK
21h 20m1 stop
Qatar Airways Logo
8:00 pm - 3:40 pmBKK-IAD
30h 40m1 stop
$934Qatar Airways
Find Deal
Thu, Aug 28 - Sat, Sep 13
Korean Air Logo
11:50 am - 9:40 pmIAD-HKT
45h 50m1 stop
Korean Air Logo
11:20 pm - 11:17 pmHKT-IAD
35h 57m2 stops
$1,118Korean Air
Find Deal
Sun, Nov 9 - Mon, Nov 17
Emirates Logo
10:55 am - 11:35 amIAD-KBV
37h 40m1 stop
Emirates Logo
12:40 pm - 8:40 amKBV-IAD
31h 00m1 stop
$1,122Emirates
Find Deal
Wed, Oct 1 - Wed, Oct 8
Emirates Logo
10:55 am - 12:00 pmIAD-HKT
38h 05m1 stop
Emirates Logo
7:55 pm - 8:40 amHKT-IAD
23h 45m1 stop
$1,131Emirates
Find Deal
Wed, Oct 1 - Wed, Oct 8
Korean Air Logo
5:25 pm - 9:55 pmIAD-CNX
41h 30m2 stops
Korean Air Logo
11:15 pm - 10:55 amCNX-IAD
22h 40m1 stop
$1,505Korean Air
Find Deal
Mon, Sep 1 - Tue, Sep 30

Air China flights from Washington, D.C. Dulles Intl Airport to Thailand

Our best Air China deals on Washington, D.C. Dulles Intl Airport to Thailand flight tickets
Air China
Oct 28
IAD11:00 pmWashington, D.C. Dulles Intl
32h 05m
1 stop
BKK6:05 pmBangkok Suvarnabhumi
Nov 10
BKK7:30 pmBangkok Suvarnabhumi
35h 00m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$887
Find similar
Air China
Oct 21
IAD11:00 pmWashington, D.C. Dulles Intl
31h 45m
1 stop
HKT5:45 pmPhuket City
Oct 30
HKT6:25 pmPhuket City
36h 05m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$981
Find similar
Air China
Oct 21
IAD11:00 pmWashington, D.C. Dulles Intl
31h 45m
1 stop
HKT5:45 pmPhuket City
Oct 30
HKT6:25 pmPhuket City
36h 05m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$986
Find similar

Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to Thailand

Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Thailand flight tickets
Turkish Airlines
Oct 28
IAD2:30 pmWashington, D.C. Dulles Intl
26h 50m
1 stop
BKK4:20 amBangkok Suvarnabhumi
Nov 10
BKK10:10 amBangkok Suvarnabhumi
45h 05m
1 stop
IAD7:15 pmWashington, D.C. Dulles Intl
$888
Find similar
Turkish Airlines
Oct 28
IAD2:30 pmWashington, D.C. Dulles Intl
26h 50m
1 stop
BKK4:20 amBangkok Suvarnabhumi
Nov 12
BKK5:50 amBangkok Suvarnabhumi
25h 25m
1 stop
IAD7:15 pmWashington, D.C. Dulles Intl
$898
Find similar
Turkish Airlines
Sep 12
IAD1:30 pmWashington, D.C. Dulles Intl
38h 55m
1 stop
BKK3:25 pmBangkok Suvarnabhumi
Sep 19
BKK6:45 amBangkok Suvarnabhumi
40h 00m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$904
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Thailand that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 10/28

11:00 pm-6:05 pm

1 stop32h 05m

Bangkok Suvarnabhumi

Mon 11/10

7:30 pm-6:30 pm

1 stop35h 00m

$887

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Tue 10/28

2:30 pm-4:20 am

1 stop26h 50m

Bangkok Suvarnabhumi

Mon 11/10

10:10 am-7:15 pm

1 stop45h 05m

$888

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Mon 8/25

10:05 pm-7:20 am

1 stop22h 15m

Bangkok Suvarnabhumi

Mon 9/8

9:30 am-4:10 pm

1 stop41h 40m

$893

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 8/28

11:00 am-7:50 pm

1 stop21h 50m

Bangkok Suvarnabhumi

Thu 9/11

2:30 am-3:40 pm

1 stop24h 10m

$896

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Sun 9/14

10:05 pm-6:30 am

1 stop21h 25m

Bangkok Suvarnabhumi

Thu 9/18

2:55 am-4:10 pm

1 stop24h 15m

$900

Washington, D.C.Bangkok

IAD - BKK

IADBKK

Washington, D.C. Dulles Intl

Thu 8/28

11:00 am-7:20 pm

1 stop21h 20m

Bangkok Suvarnabhumi

Sat 9/13

8:00 pm-3:40 pm

1 stop30h 40m

$934

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Sun 11/9

11:50 am-9:40 pm

1 stop45h 50m

Phuket City

Mon 11/17

11:20 pm-11:17 pm

2 stops35h 57m

$1,118

Washington, D.C.Krabi

IAD - KBV

IADKBV

Washington, D.C. Dulles Intl

Wed 10/1

10:55 am-11:35 am

1 stop37h 40m

Krabi

Wed 10/8

12:40 pm-8:40 am

1 stop31h 00m

$1,122

Washington, D.C.Phuket City

IAD - HKT

IADHKT

Washington, D.C. Dulles Intl

Wed 10/1

10:55 am-12:00 pm

1 stop38h 05m

Phuket City

Wed 10/8

7:55 pm-8:40 am

1 stop23h 45m

$1,131

Washington, D.C.Chiang Mai

IAD - CNX

IADCNX

Washington, D.C. Dulles Intl

Mon 9/1

5:25 pm-9:55 pm

2 stops41h 30m

Chiang Mai

Tue 9/30

11:15 pm-10:55 am

1 stop22h 40m

$1,505

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Thailand from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Thailand

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Thailand?

The month of August is, on average, the cheapest month to fly to Thailand from Washington, D.C. Dulles Intl Airport, with most prices found around $1,017. If you are unable to visit Thailand during the month of August, then departing from Washington, D.C. Dulles Intl Airport during the month September is also very affordable. Most momondo users find prices during this month for around $1,045.

What is the cheapest day to depart on your flight to Thailand?

The cheapest day to depart on your flight to Thailand is on a Saturday when prices can be found for as low as $1,182. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Thailand is Friday, with ticket prices averaging around $1,353.

What is the cheapest time of day to depart on your flight to Thailand?

Flying to Thailand from Washington, D.C. Dulles Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,113 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Thailand is in the morning when prices are around $1,342.

How far in advance should I book a flight to Thailand?

You are more likely to see cheaper flights to Thailand from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,232 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Washington, D.C. Dulles Intl Airport for as low as $1,009 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Thailand flights?

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Thailand flight.

Cheap Washington, D.C. Dulles Intl Airport to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Thailand

Best Price Found

$429

Fastest flight time

20h 35m

Direct flights

None

Airports in Thailand

6 airports
The best one-way flight to Thailand from Washington, D.C. Dulles Intl Airport in the past 72 hours is $429. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Thailand found on momondo in the last 72 hours is $887.
The fastest flight from Washington, D.C. Dulles Intl Airport to Thailand takes 20h 35m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Thailand. Popular non-direct routes for this connection are Washington, D.C. Dulles Intl Airport - Bangkok Suvarnabhumi Airport, Washington, D.C. Dulles Intl Airport - Bangkok Don Mueang Intl Airport and Washington, D.C. Dulles Intl Airport - Phuket City Airport.
There are 6 airports near Thailand: Phuket City (HKT), Bangkok Suvarnabhumi (BKK), Bangkok Don Mueang Intl (DMK), Chiang Mai (CNX), Ko Samui (USM), Krabi (KBV)
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  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Thailand?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Thailand are updated daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Thailand?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Thailand?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Thailand.

  • What documentation or ID do you need to fly to Thailand?

    The required travel and health documents for your Thailand trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Thailand. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Thailand

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Thailand with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom $565Free CancellationRating
7.3
95 reviews
Search Air China flights
SAUDIAPriceFrom $590Free CancellationRating
7.4
625 reviews
Search SAUDIA flights
Air IndiaPriceFrom $700Free CancellationRating
5.5
2,930 reviews
Search Air India flights
Korean AirPriceFrom $741Free CancellationRating
8.4
1,131 reviews
Search Korean Air flights
ANAPriceFrom $896Free CancellationRating
8.4
934 reviews
Search ANA flights
Etihad AirwaysPriceFrom $914Free CancellationRating
7.4
1,233 reviews
Search Etihad Airways flights
Turkish AirlinesPriceFrom $916Free CancellationRating
7.3
3,945 reviews
Search Turkish Airlines flights
DeltaPriceFrom $928Free CancellationRating
8.0
7,981 reviews
Search Delta flights
Alaska AirlinesPriceFrom $936Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $939Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Thailand?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Thailand from Washington, D.C..

Can I find flights from Washington, D.C. to Thailand with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Thailand from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Thailand?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Thailand from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Thailand right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Thailand flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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