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Cheap flights from Washington to Chiang Mai from $443

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 to Chiang Mai departing on 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
Korean Air Logo
12:00 pm - 10:55 pm
SEA
-
CNX
20h 55m
1 stop
Korean Air Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
$811Korean Air
Tue, Oct 27 - Wed, Nov 11
Korean Air Logo
7:20 am - 10:55 pm
SEA
-
CNX
25h 35m
2 stops
Korean Air Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
$816Korean Air
Tue, Oct 27 - Sun, Nov 15
Korean Air Logo
12:00 pm - 10:55 pm
SEA
-
CNX
20h 55m
1 stop
Korean Air Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
$824Korean Air
Fri, Oct 30 - Sat, Nov 14
Korean Air Logo
4:15 pm - 10:55 pm
SEA
-
CNX
40h 40m
2 stops
Korean Air Logo
12:15 am - 8:31 pm
CNX
-
SEA
35h 16m
2 stops
$827Korean Air
Tue, Oct 27 - Wed, Nov 11
Korean Air Logo
7:20 am - 10:55 pm
SEA
-
CNX
25h 35m
2 stops
Korean Air Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
$829Korean Air
Sat, Oct 31 - Sun, Nov 15
Korean Air Logo
12:00 pm - 10:55 pm
SEA
-
CNX
20h 55m
1 stop
Korean Air Logo
12:15 am - 3:25 pm
CNX
-
SEA
30h 10m
2 stops
$835Korean Air
Fri, Oct 30 - Wed, Nov 11
Korean Air Logo
12:00 pm - 10:55 pm
SEA
-
CNX
20h 55m
1 stop
Korean Air Logo
12:15 am - 9:00 am
CNX
-
SEA
23h 45m
1 stop
$836Korean Air
Fri, Oct 30 - Thu, Nov 12
Korean Air Logo
7:20 am - 10:55 pm
SEA
-
CNX
25h 35m
2 stops
Korean Air Logo
12:15 am - 8:31 pm
CNX
-
SEA
35h 16m
2 stops
$840Korean Air
Sat, Oct 31 - Mon, Nov 9
Multiple Airlines Logo
9:32 pm - 2:20 pm
PDX
-
CNX
49h 48m
2 stops
Multiple Airlines Logo
3:35 pm - 4:34 pm
CNX
-
PDX
39h 59m
2 stops
$963Multiple Airlines
Wed, Nov 4 - Wed, Nov 18
Multiple Airlines Logo
5:50 pm - 2:20 pm
PDX
-
CNX
53h 30m
2 stops
Multiple Airlines Logo
3:35 pm - 8:50 pm
CNX
-
PDX
44h 15m
2 stops
$974Multiple Airlines
Wed, Nov 4 - Wed, Nov 18

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EVA Air flights from State of Washington to Chiang Mai

Our best EVA Air deals on State of Washington to Chiang Mai flight tickets
EVA Air
Sep 16
SEA1:30 amSeattle/Tacoma Intl
18h 55m
1 stop
CNX10:25 amChiang Mai
Nov 11
CNX11:50 amChiang Mai
21h 20m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
$1,058
EVA Air
Jun 23
SEA12:50 amSeattle/Tacoma Intl
22h 55m
2 stops
CNX1:45 pmChiang Mai
Aug 6
CNX10:10 amChiang Mai
23h 40m
2 stops
SEA7:50 pmSeattle/Tacoma Intl
$1,693
EVA Air
Jun 23
SEA12:50 amSeattle/Tacoma Intl
19h 35m
1 stop
CNX10:25 amChiang Mai
Aug 6
CNX10:10 amChiang Mai
23h 40m
2 stops
SEA7:50 pmSeattle/Tacoma Intl
$1,704

Air Canada flights from State of Washington to Chiang Mai

Our best Air Canada deals on State of Washington to Chiang Mai flight tickets
Air Canada
Jul 12
PDX7:45 pmPortland
30h 50m
2 stops
CNX4:35 pmChiang Mai
Aug 19
CNX5:50 pmChiang Mai
29h 41m
2 stops
PDX9:31 amPortland
$1,330
Air Canada
Sep 28
PDX7:45 pmPortland
23h 00m
2 stops
CNX8:45 amChiang Mai
Oct 2
CNX11:30 amChiang Mai
45h 36m
2 stops
PDX7:06 pmPortland
$1,336
Air Canada
Sep 28
PDX7:45 pmPortland
23h 00m
2 stops
CNX8:45 amChiang Mai
Oct 2
CNX11:30 amChiang Mai
45h 36m
2 stops
PDX7:06 pmPortland
$1,337

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Chiang Mai 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 June 21, 2026.
Use the filters below to find and compare flights from Washington to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Tue 10/27

12:00 pm-10:55 pm

1 stop20h 55m

Chiang Mai

Wed 11/11

12:15 am-9:00 am

1 stop23h 45m

$811

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Tue 10/27

7:20 am-10:55 pm

2 stops25h 35m

Chiang Mai

Sun 11/15

12:15 am-9:00 am

1 stop23h 45m

$816

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Fri 10/30

12:00 pm-10:55 pm

1 stop20h 55m

Chiang Mai

Sat 11/14

12:15 am-9:00 am

1 stop23h 45m

$824

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Tue 10/27

4:15 pm-10:55 pm

2 stops40h 40m

Chiang Mai

Wed 11/11

12:15 am-8:31 pm

2 stops35h 16m

$827

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sat 10/31

7:20 am-10:55 pm

2 stops25h 35m

Chiang Mai

Sun 11/15

12:15 am-9:00 am

1 stop23h 45m

$829

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Fri 10/30

12:00 pm-10:55 pm

1 stop20h 55m

Chiang Mai

Wed 11/11

12:15 am-3:25 pm

2 stops30h 10m

$835

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Fri 10/30

12:00 pm-10:55 pm

1 stop20h 55m

Chiang Mai

Thu 11/12

12:15 am-9:00 am

1 stop23h 45m

$836

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sat 10/31

7:20 am-10:55 pm

2 stops25h 35m

Chiang Mai

Mon 11/9

12:15 am-8:31 pm

2 stops35h 16m

$840

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 11/4

9:32 pm-2:20 pm

2 stops49h 48m

Chiang Mai

Wed 11/18

3:35 pm-4:34 pm

2 stops39h 59m

$963

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 11/4

5:50 pm-2:20 pm

2 stops53h 30m

Chiang Mai

Wed 11/18

3:35 pm-8:50 pm

2 stops44h 15m

$974

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 Chiang Mai from

How to get the cheapest flight ticket from State of Washington to Chiang Mai

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 Chiang Mai?

If you don’t want to visit Chiang Mai in January, then you should wait until September to fly from State of Washington, when ticket prices are also cheap, with an average price of $675.

Can stopping save me money on State of Washington to Chiang Mai flights?

You could potentially save up to 34% on your flight if you consider stops on a State of Washington to Chiang Mai flight.

Cheap State of Washington to Chiang Mai flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Chiang Mai

Fastest flight time

19h 05m

Direct flights

None
The fastest flight from State of Washington to Chiang Mai takes 19h 05m
There are no direct flights from State of Washington to Chiang Mai. There are no popular flight routes from State of Washington to Chiang Mai.
Search flight deals

Frequently asked questions about flying from Washington to Chiang Mai

  • When did momondo last update prices for flights from Washington to Chiang Mai Airport?

    Prices for flights from Washington to Chiang Mai Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington to Chiang Mai Airport?

  • How old do you have to be to fly from Washington to Chiang Mai Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Chiang Mai Airport.

  • What documentation or ID do you need to fly to Chiang Mai Airport?

    The necessary travel and health documents for your Chiang Mai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Chiang Mai

Compare and see reviews for airlines that fly from State of Washington to Chiang Mai with momondo
Airline
Rating
Free Cancellation
Price
China AirlinesPriceFrom $763Free CancellationRating
8.3
829 reviews
Search China Airlines flights
EVA AirPriceFrom $853Free CancellationRating
8.5
1,478 reviews
Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Chiang Mai?

It is quick and easy to find Washington to Chiang Mai flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chiang Mai that suits you.

Can I find flights from Washington to Chiang Mai with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chiang Mai from Washington with this policy.

How can momondo help me find flights from Washington to Chiang Mai?

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 Chiang Mai from Washington.

I’m not ready to book a flight from Washington to Chiang Mai right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Chiang Mai, momondo offers a useful price alert feature which will track prices for flights to Chiang Mai from Washington and alert you when they change.

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