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

Delta, Korean Air, and China Airlines are the most popular carriers 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 September 2026, there are 2 operators 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.

$473 Cheap Flights from Chiang Mai to Seattle in 2026

Discover deals from 900+ travel sites with momondo.

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.

12:20 am - 9:05 amCNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

11:00 am - 10:45 pmSEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

$778Korean Air

Wed, Nov 4 - Mon, Nov 9

12:20 am - 9:05 amCNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

11:00 am - 10:45 pmSEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

$800Korean Air

Wed, Nov 4 - Mon, Nov 9

12:20 am - 9:05 amCNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

11:00 am - 10:45 pmSEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

$809Korean Air

Wed, Nov 4 - Mon, Nov 9

12:20 am - 9:05 amCNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

11:00 am - 10:45 pmSEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

$810Korean Air

Wed, Nov 4 - Mon, Nov 9

11:25 am - 6:10 pmCNX Chiang Mai-SEA Seattle/Tacoma Intl

21h 45m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 9:25 amSEA Seattle/Tacoma Intl-CNX Chiang Mai

42h 15m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$998China Airlines

Thu, Nov 5 - Sun, Nov 8

11:25 am - 6:10 pmCNX Chiang Mai-SEA Seattle/Tacoma Intl

21h 45m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 9:25 amSEA Seattle/Tacoma Intl-CNX Chiang Mai

42h 15m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,008China Airlines

Thu, Nov 5 - Sun, Nov 8

11:25 am - 6:10 pmCNX Chiang Mai-SEA Seattle/Tacoma Intl

21h 45m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 9:25 amSEA Seattle/Tacoma Intl-CNX Chiang Mai

42h 15m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,010China Airlines

Thu, Nov 5 - Sun, Nov 8

12:10 pm - 5:30 pmCNX Chiang Mai-SEA Seattle/Tacoma Intl

20h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

12:10 am - 7:00 pmSEA Seattle/Tacoma Intl-CNX Chiang Mai

27h 50m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,044EVA Air

Thu, Nov 5 - Sun, Nov 8

12:10 pm - 5:30 pmCNX Chiang Mai-SEA Seattle/Tacoma Intl

20h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

12:10 am - 7:00 pmSEA Seattle/Tacoma Intl-CNX Chiang Mai

27h 50m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,054EVA Air

Thu, Nov 5 - Sun, Nov 8

12:10 pm - 5:30 pmCNX Chiang Mai-SEA Seattle/Tacoma Intl

20h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl

12:10 am - 7:00 pmSEA Seattle/Tacoma Intl-CNX Chiang Mai

27h 50m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

$1,056EVA Air

Thu, Nov 5 - Sun, Nov 8

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China Airlines flights from Chiang Mai to Seattle

Our best China Airlines deals on Chiang Mai to Seattle flight tickets

China Airlines

Nov 5

CNX11:25 amChiang Mai

21h 45m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

Nov 8

SEA12:10 amSeattle/Tacoma Intl

42h 15m

2 stops

CNX9:25 amChiang Mai

$998

China Airlines

Nov 5

CNX11:25 amChiang Mai

21h 45m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

Nov 8

SEA12:10 amSeattle/Tacoma Intl

42h 15m

2 stops

CNX9:25 amChiang Mai

$1,008

China Airlines

Nov 5

CNX11:25 amChiang Mai

21h 45m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

Nov 8

SEA12:10 amSeattle/Tacoma Intl

42h 15m

2 stops

CNX9:25 amChiang Mai

$1,010

EVA Air flights from Chiang Mai to Seattle

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

EVA Air

Nov 5

CNX12:10 pmChiang Mai

20h 20m

2 stops

SEA5:30 pmSeattle/Tacoma Intl

Nov 8

SEA12:10 amSeattle/Tacoma Intl

27h 50m

2 stops

CNX7:00 pmChiang Mai

$1,044

EVA Air

Nov 5

CNX12:10 pmChiang Mai

20h 20m

2 stops

SEA5:30 pmSeattle/Tacoma Intl

Nov 8

SEA12:10 amSeattle/Tacoma Intl

27h 50m

2 stops

CNX7:00 pmChiang Mai

$1,054

EVA Air

Nov 5

CNX12:10 pmChiang Mai

20h 20m

2 stops

SEA5:30 pmSeattle/Tacoma Intl

Nov 8

SEA12:10 amSeattle/Tacoma Intl

27h 50m

2 stops

CNX7:00 pmChiang Mai

$1,056

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 11/4

12:20 am-9:05 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 11/9

11:00 am-10:45 pm

1 stop20h 45m

$778

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 11/4

12:20 am-9:05 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 11/9

11:00 am-10:45 pm

1 stop20h 45m

$800

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 11/4

12:20 am-9:05 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 11/9

11:00 am-10:45 pm

1 stop20h 45m

$809

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 11/4

12:20 am-9:05 am

1 stop23h 45m

Seattle/Tacoma Intl

Mon 11/9

11:00 am-10:45 pm

1 stop20h 45m

$810

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 11/5

11:25 am-6:10 pm

1 stop21h 45m

Seattle/Tacoma Intl

Sun 11/8

12:10 am-9:25 am

2 stops42h 15m

$998

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 11/5

11:25 am-6:10 pm

1 stop21h 45m

Seattle/Tacoma Intl

Sun 11/8

12:10 am-9:25 am

2 stops42h 15m

$1,008

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 11/5

11:25 am-6:10 pm

1 stop21h 45m

Seattle/Tacoma Intl

Sun 11/8

12:10 am-9:25 am

2 stops42h 15m

$1,010

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 11/5

12:10 pm-5:30 pm

2 stops20h 20m

Seattle/Tacoma Intl

Sun 11/8

12:10 am-7:00 pm

2 stops27h 50m

$1,044

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 11/5

12:10 pm-5:30 pm

2 stops20h 20m

Seattle/Tacoma Intl

Sun 11/8

12:10 am-7:00 pm

2 stops27h 50m

$1,054

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 11/5

12:10 pm-5:30 pm

2 stops20h 20m

Seattle/Tacoma Intl

Sun 11/8

12:10 am-7:00 pm

2 stops27h 50m

$1,056

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 September 2026, prices for Chiang Mai to Seattle flights are approximately 10% 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

Best Price Found	$473
Fastest flight time	19h 55m
Direct flights	None

The best one-way flight to Seattle from Chiang Mai in the past 72 hours is $473. The best round-trip flight deal from Chiang Mai to Seattle found on momondo in the last 72 hours is $778.

The fastest flight from Chiang Mai to Seattle takes 19h 55m

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

Search flight deals

Frequently asked questions about flying from Chiang Mai to Seattle

How far is Chiang Mai to Seattle/Tacoma Intl by plane?
Seattle/Tacoma Intl is 7178.6 mi away from Chiang Mai. 19h 55m 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 September 2026, there are 2 operators 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 China Airlines, representing 58% of all bookings. The subsequent popular airline is EVA Air at 42%.

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
EVA Air	PriceFrom $816	Free Cancellation	Rating 8.5 1,522 reviews		Search EVA Air flights
China Airlines	PriceFrom $898	Free Cancellation	Rating 8.3 844 reviews		Search China Airlines flights

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SeaTac

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Renton

Kent

Olympia

Redmond

Lakewood

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Fife

Tukwila

Puyallup

Lynnwood

Cle Elum

Marysville

Kirkland

Centralia

Lacey

Shoreline

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.