How long is the flight from Chiang Mai to Seattle?

A quick flight from Chiang Mai to Seattle can take about 21h 20m. Korean Air provides one of the quickest options available for as low as ฿29,760. The distance from Chiang Mai to Seattle is about 11571 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What is the cheapest time of day to fly from CNX to SEA?

When flying from Chiang Mai to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Chiang Mai to Seattle that include hotel bookings?

Yes. In addition to deals on Chiang Mai to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Chiang Mai to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Seattle.

Can I find deals for business class flights from Chiang Mai to Seattle?

Yes. Cheapflights offers flight deals from Chiang Mai to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

฿15,738+ Cheap Flights from Chiang Mai to Seattle

Cheap flight deals from Chiang Mai to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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Cheapest flights from Chiang Mai to Seattle
Explore the most affordable flight options available from Chiang Mai to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Tue 8/1200:20 -

1 stop23h 45m

Tue 29/1211:00 -

1 stop20h 45m

Deal found 9/9฿26,592

Wed 4/1100:20 -

1 stop23h 45m

Mon 9/1111:00 -

1 stop20h 45m

Deal found 10/9฿26,625

Sat 24/1011:35 -

1 stop21h 05m

Sat 31/1023:50 -

1 stop20h 45m

Deal found 9/9฿29,562

Wed 9/1211:50 -

1 stop21h 20m

Tue 29/1200:10 -

1 stop19h 25m

Deal found 9/9฿29,595

Wed 9/1217:00 -

2 stops31h 09m

Tue 29/1223:45 -

1 stop25h 15m

Deal found 9/9฿30,090

Thu 10/1200:20 -

2 stops31h 58m

Tue 29/1219:55 -

2 stops59h 50m

Deal found 9/9฿30,287

Mon 5/1011:35 -

1 stop21h 45m

Tue 27/1001:10 -

1 stop19h 25m

Deal found 10/9฿31,046

Mon 5/1010:10 -

2 stops20h 00m

Tue 27/1000:45 -

2 stops28h 15m

Deal found 10/9฿33,026

Find flight deals from Chiang Mai to Seattle

Round-trip from	฿26,592
One-way from	฿15,738

Korean Air
8/12-29/12
2 total stops
44h 30m total
Chiang Mai to Seattle

Search Deals

เดลต้า
23/12-31/12
1 total stop
26h 36m total
Chiang Mai to Seattle

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Mai to Seattle that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Mon 21/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,738

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 24/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,738

Fastest return journey

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 24/12

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,771

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 18/11

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,771

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Sat 5/12

00:20-11:56

1 stop26h 36m

Seattle/Tacoma Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿15,804

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 10/12

00:20-14:10

1 stop28h 50m

Seattle/Tacoma Intl

Tue 29/12

11:00-22:45

1 stop20h 45m

฿26,592

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Wed 4/11

00:20-09:05

1 stop23h 45m

Seattle/Tacoma Intl

Mon 9/11

11:00-22:45

1 stop20h 45m

฿26,625

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Mon 25/1

11:50-18:10

1 stop21h 20m

Seattle/Tacoma Intl

Sat 17/4

01:30-10:25

1 stop18h 55m

฿29,760

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Thu 10/12

00:20-17:18

2 stops31h 58m

Seattle/Tacoma Intl

Tue 29/12

19:55-22:45

2 stops59h 50m

฿30,287

Chiang MaiSeattle

CNX Chiang Mai - SEA Seattle/Tacoma Intl

CNXSEA

Chiang Mai

Tue 8/12

00:20-14:14

2 stops52h 54m

Seattle/Tacoma Intl

Tue 29/12

19:55-22:45

2 stops59h 50m

฿30,287

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 12 resultsSorted by cheapest first

Best time to book a flight from Chiang Mai to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Chiang Mai with our price prediction graph.

CNX-SEA

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Chiang Mai to Seattle?
A quick flight from Chiang Mai to Seattle can take about 21h 20m. Korean Air provides one of the quickest options available for as low as ฿29,760. The distance from Chiang Mai to Seattle is about 11571 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Chiang Mai to Seattle that include hotel bookings?
Yes. In addition to deals on Chiang Mai to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chiang Mai to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Seattle.
Can I find deals for business class flights from Chiang Mai to Seattle?
Yes. Cheapflights offers flight deals from Chiang Mai to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Cheapflights helps you search for flights from Chiang Mai to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Chiang Mai.

Can Cheapflights find flights from Chiang Mai to Seattle with no change fees?

Yes! Cheapflights helps users easily find flights from Chiang Mai to Seattle with no change fees.

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Cheap flights from Chiang Mai to Seattle from ฿15,738

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Mai to Seattle

Cheapest flights from Chiang Mai to SeattleExplore the most affordable flight options available from Chiang Mai to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Explore the most affordable flight options available from Chiang Mai to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Best flights from Chiang Mai to SeattleDiscover carefully curated flight deals from Chiang Mai to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Discover carefully curated flight deals from Chiang Mai to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Chiang Mai to SeattleDiscover last-minute flight deals from Chiang Mai to Seattle. Data last updated 11 September 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Seattle. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Chiang Mai to SeattleSearch for one-way flight options from Chiang Mai to Seattle. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Search for one-way flight options from Chiang Mai to Seattle. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

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Best time to book a flight from Chiang Mai to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Chiang Mai with our price prediction graph.

Related info for your journey

How long is the flight from Chiang Mai to Seattle?

Can I find deals for flights from Chiang Mai to Seattle that include hotel bookings?

How can I find direct flights from Chiang Mai to Seattle?

Can I find deals for business class flights from Chiang Mai to Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Mai to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Chiang Mai to Seattle by cabin class

Find flights from Chiang Mai to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Chiang Mai and Seattle flights

Browse other Chiang Mai and Seattle flight options. Last updated on 11 September 2026.

Other flights from Chiang Mai

Browse through other flights departing from Chiang Mai. Flights are based on user searches made on Cheapflights and were last updated on 11 September 2026.

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How does Cheapflights help users find flights from Chiang Mai to Seattle?

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Can Cheapflights notify me if prices for flights from Chiang Mai to Seattle become cheaper?

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Cheapest flights from Chiang Mai to Seattle
Explore the most affordable flight options available from Chiang Mai to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Best flights from Chiang Mai to Seattle
Discover carefully curated flight deals from Chiang Mai to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Chiang Mai to Seattle
Discover last-minute flight deals from Chiang Mai to Seattle. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Chiang Mai to Seattle
Search for one-way flight options from Chiang Mai to Seattle. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.