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Cheap flights from Washington to Chiang Mai from $395

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 11/4. 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 to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
China Airlines Logo
12:10 am - 10:25 amSEA-CNX
19h 15m1 stop
China Airlines Logo
11:25 am - 6:10 pmCNX-SEA
21h 45m1 stop
$767China Airlines
Find Deal
Tue, Jan 27 - Thu, Feb 12
China Airlines Logo
12:10 am - 10:25 amSEA-CNX
19h 15m1 stop
China Airlines Logo
11:25 am - 6:10 pmCNX-SEA
21h 45m1 stop
$768China Airlines
Find Deal
Mon, Jan 26 - Thu, Feb 12
Multiple Airlines Logo
11:45 pm - 9:00 pmSEA-CNX
30h 15m2 stops
Multiple Airlines Logo
7:45 pm - 4:05 pmCNX-SEA
58h 20m2 stops
$774Multiple Airlines
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Fri, Jan 16 - Sat, Mar 21
Multiple Airlines Logo
11:45 pm - 9:00 pmSEA-CNX
30h 15m2 stops
Multiple Airlines Logo
10:10 am - 3:05 pmCNX-SEA
19h 55m2 stops
$776Multiple Airlines
Find Deal
Thu, Jan 29 - Sat, Feb 7
Delta Logo
12:35 pm - 10:55 pmSEA-CNX
20h 20m1 stop
Delta Logo
12:15 am - 2:20 pmCNX-SEA
28h 05m1 stop
$795Delta
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Sun, Mar 8 - Tue, Mar 10
Korean Air Logo
12:00 pm - 10:55 pmSEA-CNX
20h 55m1 stop
Korean Air Logo
12:15 am - 10:00 amCNX-SEA
23h 45m1 stop
$798Korean Air
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Sat, Mar 14 - Fri, Mar 20
Korean Air Logo
7:20 am - 10:55 pmSEA-CNX
25h 35m2 stops
Korean Air Logo
12:15 am - 10:00 amCNX-SEA
23h 45m1 stop
$804Korean Air
Find Deal
Sun, Mar 8 - Tue, Mar 10
EVA Air Logo
12:30 am - 10:25 amSEA-CNX
19h 55m1 stop
EVA Air Logo
11:35 am - 7:30 pmCNX-SEA
21h 55m1 stop
$839EVA Air
Find Deal
Tue, Mar 31 - Wed, Apr 15
EVA Air Logo
12:10 am - 10:35 amSEA-CNX
19h 25m1 stop
EVA Air Logo
11:50 am - 6:10 pmCNX-SEA
21h 20m1 stop
$865EVA Air
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Wed, Jan 28 - Wed, Feb 11
Delta Logo
5:30 am - 10:55 pmPDX-CNX
26h 25m2 stops
Delta Logo
12:15 am - 8:47 pmCNX-PDX
35h 32m2 stops
$928Delta
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Wed, Feb 18 - Wed, Mar 4

China Airlines flights from State of Washington to Chiang Mai

Our best China Airlines deals on State of Washington to Chiang Mai flight tickets
China Airlines
Jan 27
SEA12:10 amSeattle/Tacoma Intl
19h 15m
1 stop
CNX10:25 amChiang Mai
Feb 12
CNX11:25 amChiang Mai
21h 45m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
$767
Find similar
China Airlines
Jan 26
SEA12:10 amSeattle/Tacoma Intl
19h 15m
1 stop
CNX10:25 amChiang Mai
Feb 12
CNX11:25 amChiang Mai
21h 45m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
$768
Find similar
China Airlines
Jan 27
SEA12:10 amSeattle/Tacoma Intl
19h 15m
1 stop
CNX10:25 amChiang Mai
Feb 14
CNX11:25 amChiang Mai
21h 45m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
$802
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Delta flights from State of Washington to Chiang Mai

Our best Delta deals on State of Washington to Chiang Mai flight tickets
Delta
Mar 8
SEA12:35 pmSeattle/Tacoma Intl
20h 20m
1 stop
CNX10:55 pmChiang Mai
Mar 10
CNX12:15 amChiang Mai
28h 05m
1 stop
SEA2:20 pmSeattle/Tacoma Intl
$795
Find similar
Delta
Feb 18
PDX5:30 amPortland
26h 25m
2 stops
CNX10:55 pmChiang Mai
Mar 4
CNX12:15 amChiang Mai
35h 32m
2 stops
PDX8:47 pmPortland
$928
Find similar
Delta
Feb 17
PDX7:45 pmPortland
36h 10m
2 stops
CNX10:55 pmChiang Mai
Feb 25
CNX12:15 amChiang Mai
47h 22m
2 stops
PDX8:37 amPortland
$939
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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 October 8, 2025.
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

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Tue 1/27

12:10 am-10:25 am

1 stop19h 15m

Chiang Mai

Thu 2/12

11:25 am-6:10 pm

1 stop21h 45m

$767

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Mon 1/26

12:10 am-10:25 am

1 stop19h 15m

Chiang Mai

Thu 2/12

11:25 am-6:10 pm

1 stop21h 45m

$768

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Fri 1/16

11:45 pm-9:00 pm

2 stops30h 15m

Chiang Mai

Sat 3/21

7:45 pm-4:05 pm

2 stops58h 20m

$774

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Thu 1/29

11:45 pm-9:00 pm

2 stops30h 15m

Chiang Mai

Sat 2/7

10:10 am-3:05 pm

2 stops19h 55m

$776

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sun 3/8

12:35 pm-10:55 pm

1 stop20h 20m

Chiang Mai

Tue 3/10

12:15 am-2:20 pm

1 stop28h 05m

$795

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sat 3/14

12:00 pm-10:55 pm

1 stop20h 55m

Chiang Mai

Fri 3/20

12:15 am-10:00 am

1 stop23h 45m

$798

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sun 3/8

7:20 am-10:55 pm

2 stops25h 35m

Chiang Mai

Tue 3/10

12:15 am-10:00 am

1 stop23h 45m

$804

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Tue 3/31

12:30 am-10:25 am

1 stop19h 55m

Chiang Mai

Wed 4/15

11:35 am-7:30 pm

1 stop21h 55m

$839

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Wed 1/28

12:10 am-10:35 am

1 stop19h 25m

Chiang Mai

Wed 2/11

11:50 am-6:10 pm

1 stop21h 20m

$865

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 2/18

5:30 am-10:55 pm

2 stops26h 25m

Chiang Mai

Wed 3/4

12:15 am-8:47 pm

2 stops35h 32m

$928

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 March, then you should wait until September to fly from State of Washington, when ticket prices are also cheap, with an average price of $772.

What is the cheapest day to depart on your flight to Chiang Mai?

The cheapest day to depart from State of Washington to Chiang Mai is on a Tuesday. Travelers who choose to depart for Chiang Mai on a Tuesday will often find tickets for as low as $882. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from State of Washington to Chiang Mai for around $1,415.

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

Flying to Chiang Mai from State of Washington in the morning is the least expensive time of day to depart. momondo users have found prices as low as $929 when looking at flights departing in the morning. Flights to Chiang Mai are more costly in the evening, with an average ticket price of $1,057. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Chiang Mai?

You are more likely to see cheaper flights to Chiang Mai from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Chiang Mai for around $986 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chiang Mai from State of Washington for as low as $753 on momondo.

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

You could potentially save up to 8% 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

Direct flights

None
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

  • 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
Asiana AirlinesPriceFrom $663Free CancellationRating
8.2
486 reviews
Search Asiana Airlines flights
China AirlinesPriceFrom $730Free CancellationRating
8.3
767 reviews
Search China Airlines flights
Singapore AirlinesPriceFrom $768Free CancellationRating
8.1
1,376 reviews
Search Singapore Airlines flights
Korean AirPriceFrom $814Free CancellationRating
8.4
1,147 reviews
Search Korean Air flights
EVA AirPriceFrom $865Free CancellationRating
8.4
1,248 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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