What is the cheapest airline that flies from Chiang Mai to Seattle/Tacoma Intl?

Delta is the most popular carrier operating from Chiang Mai to Seattle/Tacoma Intl

When did momondo last update prices for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport were last updated today.

How many operators does momondo search for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport?

As of February 2026, there is 1 operator available to choose from for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Chiang Mai Airport to Seattle/Tacoma Intl Airport?

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 Chiang Mai Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$510 Cheap Flights from Chiang Mai to Seattle in 2026

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Find the cheapest flights from Chiang Mai to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:35 am - 6:50 pm

CNX

SEA

21h 15m

1 stop

1:10 am - 10:25 am

SEA

CNX

19h 15m

1 stop

$789EVA Air

Tue, May 19 - Sat, Jul 18

6:35 am - 2:55 pm

CNX

SEA

46h 20m

2 stops

12:55 am - 4:55 pm

SEA

CNX

26h 00m

2 stops

$796Multiple Airlines

Mon, Apr 6 - Sun, Apr 12

8:00 pm - 6:50 pm

CNX

SEA

36h 50m

2 stops

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$842EVA Air

Wed, May 13 - Tue, Jun 30

11:35 am - 6:50 pm

CNX

SEA

21h 15m

1 stop

2:10 am - 1:45 pm

SEA

CNX

21h 35m

2 stops

$843EVA Air

Tue, May 19 - Sun, Jul 19

11:55 am - 7:30 pm

CNX

SEA

21h 35m

2 stops

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$845EVA Air

Wed, May 13 - Tue, Jun 30

8:00 pm - 7:30 pm

CNX

SEA

37h 30m

2 stops

1:10 am - 10:35 am

SEA

CNX

19h 25m

1 stop

$846EVA Air

Mon, Apr 20 - Thu, Oct 29

8:00 pm - 7:30 pm

CNX

SEA

37h 30m

2 stops

1:30 am - 10:25 am

SEA

CNX

18h 55m

1 stop

$852EVA Air

Mon, Apr 6 - Sun, Apr 12

11:35 am - 7:30 pm

CNX

SEA

21h 55m

1 stop

1:30 am - 1:45 pm

SEA

CNX

22h 15m

2 stops

$866EVA Air

Tue, Apr 7 - Mon, Apr 13

11:35 am - 7:30 pm

CNX

SEA

21h 55m

1 stop

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$868EVA Air

Wed, May 13 - Tue, Jun 30

11:20 am - 7:15 pm

CNX

SEA

21h 55m

1 stop

1:55 am - 10:20 am

SEA

CNX

18h 25m

1 stop

$871China Airlines

Tue, May 19 - Mon, Jul 20

EVA Air flights from Chiang Mai to Seattle

Our best EVA Air deals on Chiang Mai to Seattle flight tickets

EVA Air

May 19

CNX11:35 amChiang Mai

21h 15m

1 stop

SEA6:50 pmSeattle/Tacoma Intl

Jul 18

SEA1:10 amSeattle/Tacoma Intl

19h 15m

1 stop

CNX10:25 amChiang Mai

$789

EVA Air

May 13

CNX8:00 pmChiang Mai

36h 50m

2 stops

SEA6:50 pmSeattle/Tacoma Intl

Jun 30

SEA12:50 amSeattle/Tacoma Intl

19h 35m

1 stop

CNX10:25 amChiang Mai

$842

EVA Air

May 19

CNX11:35 amChiang Mai

21h 15m

1 stop

SEA6:50 pmSeattle/Tacoma Intl

Jul 19

SEA2:10 amSeattle/Tacoma Intl

21h 35m

2 stops

CNX1:45 pmChiang Mai

$843

Air Canada flights from Chiang Mai to Seattle

Our best Air Canada deals on Chiang Mai to Seattle flight tickets

Air Canada

May 22

CNX11:15 amChiang Mai

36h 00m

2 stops

SEA9:15 amSeattle/Tacoma Intl

Jul 19

SEA9:55 amSeattle/Tacoma Intl

40h 40m

2 stops

CNX4:35 pmChiang Mai

$968

Air Canada

Aug 5

CNX11:15 amChiang Mai

45h 17m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Sep 4

SEA5:40 amSeattle/Tacoma Intl

44h 55m

2 stops

CNX4:35 pmChiang Mai

$1,023

Fly from

Fly to

Route

Depart

Return

Price

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/19

11:35 am-6:50 pm

1 stop21h 15m

Seattle/Tacoma Intl

Sat 7/18

1:10 am-10:25 am

1 stop19h 15m

$789

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 4/6

6:35 am-2:55 pm

2 stops46h 20m

Seattle/Tacoma Intl

Sun 4/12

12:55 am-4:55 pm

2 stops26h 00m

$796

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/13

8:00 pm-6:50 pm

2 stops36h 50m

Seattle/Tacoma Intl

Tue 6/30

12:50 am-10:25 am

1 stop19h 35m

$842

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/19

11:35 am-6:50 pm

1 stop21h 15m

Seattle/Tacoma Intl

Sun 7/19

2:10 am-1:45 pm

2 stops21h 35m

$843

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/13

11:55 am-7:30 pm

2 stops21h 35m

Seattle/Tacoma Intl

Tue 6/30

12:50 am-10:25 am

1 stop19h 35m

$845

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 4/20

8:00 pm-7:30 pm

2 stops37h 30m

Seattle/Tacoma Intl

Thu 10/29

1:10 am-10:35 am

1 stop19h 25m

$846

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 4/6

8:00 pm-7:30 pm

2 stops37h 30m

Seattle/Tacoma Intl

Sun 4/12

1:30 am-10:25 am

1 stop18h 55m

$852

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 4/7

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

Mon 4/13

1:30 am-1:45 pm

2 stops22h 15m

$866

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/13

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

Tue 6/30

12:50 am-10:25 am

1 stop19h 35m

$868

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/19

11:20 am-7:15 pm

1 stop21h 55m

Seattle/Tacoma Intl

Mon 7/20

1:55 am-10:20 am

1 stop18h 25m

$871

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chiang Mai to Seattle

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

Prices

Airlines

How have Chiang Mai to Seattle flight prices changed over time?

As of February 2026, prices for Chiang Mai to Seattle flights are approximately 8% cheaper when compared to flights at the same time last year.

When to book flights from Chiang Mai to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Chiang Mai to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chiang Mai to Seattle (CNX to SEA) flight deals and tips

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

Fastest flight time	21h 35m
Direct flights	None

The fastest flight from Chiang Mai to Seattle takes 21h 35m

There are no direct flights from Chiang Mai to Seattle. There are no popular flight routes from Chiang Mai to Seattle.

Search flight deals

How far is Chiang Mai to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 7178.6 mi away from Chiang Mai. 21h 35m is a normal flight duration for this route.
When did momondo last update prices for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport?
As of February 2026, there is 1 operator available to choose from for flights from Chiang Mai Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Chiang Mai Airport to Seattle/Tacoma Intl Airport?
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 Chiang Mai Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Chiang Mai to Seattle?
momondo data reveals that the most frequently booked airline on the route from Chiang Mai to Seattle is Korean Air, representing 100% of all bookings.

Best airlines flying from Chiang Mai to Seattle

Compare and see reviews for airlines that fly from Chiang Mai to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Korean Air	PriceFrom $803	Free Cancellation	Rating 8.4 1,194 reviews		Search Korean Air flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Redmond

Puyallup

Cle Elum

Lakewood

Tukwila

Federal Way

Kirkland

Fife

Westport

Centralia

Tumwater

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chiang Mai to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Chiang Mai to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 Seattle from Chiang Mai.

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

If you are not ready to book a flight from Chiang Mai to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.