What are the cheapest airlines flying from Chiang Mai to Seattle round-trip?

Currently priced at ฿23,104, Asiana Airlines will fly you from Chiang Mai to Seattle and back. In addition to Asiana Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Korean Air and เดลต้า - these airlines can fly you to your destination from ฿26,160 and ฿26,788, respectively. Asiana Airlines is currently priced 30% below the average price you’ll pay for this route.

What is the cheapest day to fly from Chiang Mai to Seattle?

Travellers seeking maximum savings on their Chiang Mai to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 are the most popular airlines that fly from Chiang Mai to Seattle?

The most popular airlines flying from Chiang Mai to Seattle are EVA Air, เดลต้า and Korean Air. Something to consider prior to booking your flight.

What is the cheapest day to fly return from Chiang Mai to Seattle?

Flights from Chiang Mai to Seattle are generally found to be more expensive on Thursday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

What is the cheapest month to fly from Chiang Mai to Seattle?

February is one of the best times of the year to fly to Seattle from Chiang Mai. Prices for February average ฿33,201 per person but you can even find prices for as low as ฿26,444. The most expensive prices can be found in the month of August. Opting for a February flight can save you 104% on your journey compared to booking in August

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

It’s typically best to fly out from Chiang Mai to Seattle at midday. Doing so could potentially save you 1% on the flight price compared to flying in the morning, which is usually more expensive.

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.

฿14,257+ Flights from Chiang Mai to Seattle

Cheap flight deals from Chiang Mai to Seattle

Round-trip from	฿25,507
One-way from	฿14,257
Popular in	August
Cheapest in	February
Average price	฿67,759

China Airlines
21/12-10/1
2 total stops
47h 10m total
Chiang Mai to Seattle

Search Deals

22/1
2 total stops
26h 30m total
Chiang Mai to Seattle

Search Deals

Highest demand for flights based on searches. 33% potential increase in price (฿535,582 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 11% potential price decrease (฿111,753 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Chiang Mai to Seattle

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 17 August 2025.

Sun 21/1211:25CNX - SEA

1 stop21h 45mChina Airlines

Tue 30/1200:10SEA - CNX

1 stop19h 15mChina Airlines

Deal found 16/8฿25,507

Sat 20/1216:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Sun 11/123:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 16/8฿25,895

Sat 20/1216:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Sun 28/1223:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 16/8฿26,994

Tue 11/1116:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Thu 4/1223:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 15/8฿27,059

Sat 20/1200:15CNX - SEA

1 stop23h 45mKorean Air

Tue 13/111:00SEA - CNX

1 stop21h 05mKorean Air

Deal found 16/8฿27,253

Sat 8/1100:15CNX - SEA

1 stop23h 45mKorean Air

Mon 1/1211:00SEA - CNX

1 stop21h 05mKorean Air

Deal found 15/8฿27,285

Sat 20/1211:50CNX - SEA

1 stop20h 50mEVA Air

Sat 10/100:10SEA - CNX

1 stop19h 25mEVA Air

Deal found 16/8฿27,382

Mon 22/1217:35CNX - SEA

1 stop15h 35mChina Airlines

Sun 11/100:10SEA - CNX

1 stop19h 15mChina Airlines

Deal found 16/8฿27,511

Sat 20/1216:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Thu 1/123:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 16/8฿27,964

Sun 21/1207:05CNX - SEA

2 stops26h 30mMultiple Airlines

Wed 31/1221:30SEA - CNX

2 stops28h 20mMultiple Airlines

Deal found 16/8฿28,222

Mon 22/1217:35CNX - SEA

1 stop15h 35mChina Airlines

Thu 8/100:10SEA - CNX

1 stop19h 15mChina Airlines

Deal found 16/8฿28,675

Mon 10/1117:35CNX - SEA

1 stop15h 35mChina Airlines

Sat 29/1100:10SEA - CNX

1 stop25h 25mChina Airlines

Deal found 15/8฿28,740

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 17 August 2025.

Sun 21/1211:25CNX - SEA

1 stop21h 45mChina Airlines

Sat 10/100:10SEA - CNX

1 stop25h 25mChina Airlines

Deal found 16/8฿25,507

Sat 20/1216:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Sun 11/123:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 16/8฿25,895

Sat 20/1200:15CNX - SEA

1 stop23h 45mKorean Air

Tue 13/111:00SEA - CNX

1 stop21h 05mKorean Air

Deal found 16/8฿27,253

Sun 21/1211:25CNX - SEA

1 stop21h 45mChina Airlines

Tue 30/1200:10SEA - CNX

1 stop19h 15mChina Airlines

Deal found 16/8฿25,507

Sat 20/1216:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Sun 28/1223:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 16/8฿26,994

Sat 20/1200:15CNX - SEA

1 stop23h 45mKorean Air

Mon 29/1211:00SEA - CNX

1 stop21h 05mKorean Air

Deal found 16/8฿27,253

Sun 21/1211:25CNX - SEA

1 stop21h 45mChina Airlines

Sun 28/1200:10SEA - CNX

1 stop19h 15mChina Airlines

Deal found 16/8฿25,507

Tue 11/1116:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Tue 2/1223:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 15/8฿27,059

Sun 21/1200:15CNX - SEA

1 stop23h 45mKorean Air

Tue 13/111:00SEA - CNX

1 stop21h 05mKorean Air

Deal found 16/8฿27,253

Tue 11/1116:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Thu 4/1223:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 15/8฿27,059

Sun 21/1200:15CNX - SEA

1 stop23h 45mKorean Air

Mon 29/1211:00SEA - CNX

1 stop21h 05mKorean Air

Deal found 16/8฿27,253

Tue 11/1116:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Sun 30/1123:45SEA - CNX

1 stop25h 10mSTARLUX Airlines

Deal found 15/8฿27,059

Last-minute flights from Chiang Mai to Seattle
Discover last-minute flight deals from Chiang Mai to Seattle. Data last updated 17 August 2025 and is based on user searches.

Mon 18/823:15CNX - SEA

1 stop27h 30mMultiple Airlines

Thu 4/914:15SEA - CNX

1 stop19h 25mMultiple Airlines

Deal found 15/8฿32,975

Thu 21/823:30CNX - SEA

2 stops33h 45mMultiple Airlines

Tue 2/914:15SEA - CNX

1 stop19h 25mMultiple Airlines

Deal found 15/8฿32,037

Thu 21/823:30CNX - SEA

2 stops33h 45mMultiple Airlines

Mon 1/912:50SEA - CNX

1 stop20h 50mMultiple Airlines

Deal found 15/8฿33,136

Thu 21/823:30CNX - SEA

2 stops33h 45mMultiple Airlines

Fri 5/912:50SEA - CNX

1 stop19h 05mMultiple Airlines

Deal found 15/8฿34,656

Mon 29/900:45CNX - SEA

1 stop25h 45mAsiana Airlines

Tue 7/1014:15SEA - CNX

1 stop19h 25mAsiana Airlines

Deal found 16/8฿30,000

Tue 30/911:35CNX - SEA

1 stop21h 55mEVA Air

Mon 6/1001:30SEA - CNX

1 stop18h 55mEVA Air

Deal found 16/8฿30,453

Tue 30/917:20CNX - SEA

1 stop36h 50mMultiple Airlines

Mon 6/1001:15SEA - CNX

2 stops27h 55mMultiple Airlines

Deal found 16/8฿31,617

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 17 August 2025.

Thu 22/107:05CNX - SEA

2 stops26h 30mMultiple Airlines

Deal found 16/8฿14,257

Thu 22/116:55CNX - SEA

1 stop37h 10mSTARLUX Airlines

Deal found 16/8฿15,420

Fri 29/808:00CNX - SEA

2 stops25h 15mMultiple Airlines

Deal found 14/8฿15,582

Wed 21/100:15CNX - SEA

1 stop23h 45mKorean Air

Deal found 16/8฿17,716

Wed 21/100:15CNX - SEA

2 stops36h 39mเดลต้า

Deal found 16/8฿19,623

Fri 29/811:35CNX - SEA

1 stop22h 15mEVA Air

Deal found 14/8฿24,602

Fly from

Fly to

Route

Depart

Return

Price

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 21/12

11:25-18:10

1 stop21h 45m

Seattle/Tacoma Intl

Sat 10/1

00:10-16:35

1 stop25h 25m

฿25,507

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 21/12

11:25-18:10

1 stop21h 45m

Seattle/Tacoma Intl

Tue 30/12

00:10-10:25

1 stop19h 15m

฿25,507

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 21/12

11:25-18:10

1 stop21h 45m

Seattle/Tacoma Intl

Sun 28/12

00:10-10:25

1 stop19h 15m

฿25,507

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 20/12

16:55-15:05

1 stop37h 10m

Seattle/Tacoma Intl

Sun 11/1

23:45-15:55

1 stop25h 10m

฿25,895

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 20/12

16:55-15:05

1 stop37h 10m

Seattle/Tacoma Intl

Sun 28/12

23:45-15:55

1 stop25h 10m

฿26,994

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 11/11

16:55-15:05

1 stop37h 10m

Seattle/Tacoma Intl

Tue 2/12

23:45-15:55

1 stop25h 10m

฿27,059

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 11/11

16:55-15:05

1 stop37h 10m

Seattle/Tacoma Intl

Thu 4/12

23:45-15:55

1 stop25h 10m

฿27,059

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 11/11

16:55-15:05

1 stop37h 10m

Seattle/Tacoma Intl

Sun 30/11

23:45-15:55

1 stop25h 10m

฿27,059

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 20/12

00:15-09:00

1 stop23h 45m

Seattle/Tacoma Intl

Tue 13/1

11:00-23:05

1 stop21h 05m

฿27,253

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 20/12

00:15-09:00

1 stop23h 45m

Seattle/Tacoma Intl

Mon 29/12

11:00-23:05

1 stop21h 05m

฿27,253

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Showing 1-10 of 18 results

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.

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.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Seattle

What’s the top stopover airport for flights from Chiang Mai to Seattle?

Taipei City (TPE) – chosen by Cheapflights users on 86% of one-stop itineraries from Chiang Mai to Seattle on Cheapflights.

What’s the cheapest stopover airport for flights from Chiang Mai to Seattle?

Incheon (ICN) is the most affordable one-stop option, with an average return flight price of ฿32,488.

What’s the fastest stopover option from Chiang Mai to Seattle?

Flights via Taipei City (TPE) have the shortest average one-way travel time for one-stop routes: 21h 11m.

Which airport typically offers the quickest stopover for flights from Chiang Mai to Seattle?

Flights via Taipei City (TPE) offer the fastest connection on this route, with an average stopover time of 4h 28m.

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with EVA Air, Korean Air, andAsiana Airlines from Chiang Mai to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

EVA Air

8.4

Very Good

1,233 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

EVA Air

8.4

Very Good

1,233 reviews

EVA Air

8.4

Very Good

1,233 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Korean Air

8.4

Very Good

1,131 reviews

EVA Air

8.4

Very Good

1,233 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Asiana Airlines

8.2

Very Good

473 reviews

EVA Air

8.4

Very Good

1,233 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

เดลต้า

8.0

Very Good

7,986 reviews

EVA Air

8.4

Very Good

1,233 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Aug 2025

BKK - TPE

Related info for your journey

What are the cheapest airlines flying from Chiang Mai to Seattle round-trip?
Currently priced at ฿23,104, Asiana Airlines will fly you from Chiang Mai to Seattle and back. In addition to Asiana Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Korean Air and เดลต้า - these airlines can fly you to your destination from ฿26,160 and ฿26,788, respectively. Asiana Airlines is currently priced 30% below the average price you’ll pay for this route.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Fly from Chiang Mai to Seattle on these airlines

Korean Air flights from Chiang Mai to Seattle/Tacoma Intl

Top 4 airlines flying from Chiang Mai to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Asiana Airlines	Cheapest฿23,104	Average฿25,771	FlexibilityNo cancel fee	On-time76%	Search Asiana Airlines flights
Korean Air	Cheapest฿26,160	Average฿27,296	FlexibilityNo cancel fee	On-time81%	Search Korean Air flights
เดลต้า	Cheapest฿26,788	Average฿30,739	FlexibilityNo cancel fee	On-timeN/A	Search เดลต้า flights
EVA Air	Cheapest฿27,347	Average฿31,392	FlexibilityNo cancel fee	On-time74%	Search EVA Air flights

Fly with Cheapflights

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

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.

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

Of course! You can now track prices for flights from Chiang Mai to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Chiang Mai to Seattle from ฿14,257

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/1. 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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 17 August 2025.

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 17 August 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Seattle

What’s the top stopover airport for flights from Chiang Mai to Seattle?

Share of one-stop return flights from Chiang Mai to Seattle chosen by Cheapflights users in the past 12 months, using the same stopover each way.

What’s the cheapest stopover airport for flights from Chiang Mai to Seattle?

Average return fare for one-stop flights from Chiang Mai to Seattle, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

What’s the fastest stopover option from Chiang Mai to Seattle?

Shortest average travel time for one-stop one-way flights from Chiang Mai to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Which airport typically offers the quickest stopover for flights from Chiang Mai to Seattle?

Average stopover duration for one-stop one-way flights from Chiang Mai to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with EVA Air, Korean Air, andAsiana Airlines from Chiang Mai to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Chiang Mai to Seattle round-trip?

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.

Fly from Chiang Mai to Seattle on these airlines

Choose from the following airlines for your flight from Chiang Mai to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 17 August 2025.

Top 4 airlines flying from Chiang Mai to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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Book with Flexibility

Travel Smart

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 17 August 2025.