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Cheap flights from Chiang Mai to Seattle from ฿16,465

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
1 Jun — 8 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Seattle

Enter your travel dates to find the best prices.

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 2 May 2026.

Mon 18/520:00
CNX
-
SEA
2 stops37h 30m
EVA Air
Sun 24/501:50
SEA
-
CNX
1 stop18h 35m
EVA Air
Deal found 1/5฿30,625
Sun 5/711:20
CNX
-
SEA
1 stop22h 25m
China Airlines
Mon 7/901:55
SEA
-
CNX
1 stop18h 25m
China Airlines
Deal found 29/4฿31,794
Wed 13/511:35
CNX
-
SEA
1 stop21h 55m
EVA Air
Tue 30/600:50
SEA
-
CNX
1 stop19h 35m
EVA Air
Deal found 2/5฿31,957
Thu 7/511:35
CNX
-
SEA
1 stop21h 15m
EVA Air
Wed 22/702:10
SEA
-
CNX
2 stops27h 00m
EVA Air
Deal found 29/4฿31,989
Tue 12/511:35
CNX
-
SEA
1 stop21h 55m
EVA Air
Tue 30/601:50
SEA
-
CNX
1 stop18h 35m
EVA Air
Deal found 29/4฿32,379
Fri 23/1020:00
CNX
-
SEA
2 stops36h 40m
EVA Air
Sat 31/1023:50
SEA
-
CNX
1 stop20h 45m
EVA Air
Deal found 28/4฿32,411
Thu 14/517:20
CNX
-
SEA
2 stops32h 41m
Multiple Airlines
Tue 30/618:36
SEA
-
CNX
2 stops31h 44m
Multiple Airlines
Deal found 29/4฿32,801
Thu 9/711:20
CNX
-
SEA
1 stop22h 25m
China Airlines
Tue 8/901:55
SEA
-
CNX
1 stop18h 25m
China Airlines
Deal found 29/4฿33,158
Wed 16/914:35
CNX
-
SEA
2 stops42h 40m
China Airlines
Sat 19/901:15
SEA
-
CNX
1 stop19h 05m
China Airlines
Deal found 29/4฿33,353

Find flight deals from Chiang Mai to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 May 2026.

Round-trip from

฿30,625

One-way from

฿16,465

Popular in

September

Cheapest in

February

Average price

฿29,294
EVA Air
  • EVA Air
  • 18/5-24/5
  • 3 total stops
  • 56h 05m total
  • Chiang Mai to Seattle
Search Deals
STARLUX Airlines
  • STARLUX Airlines
  • 1/10
  • 1 total stop
  • 36h 50m total
  • Chiang Mai to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿95,955 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿20,083 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to Seattle 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, Cheapflights users made 17,341 searches. Data last updated 2 May 2026.
Use the filters below to find and compare flights from Chiang Mai to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 6/7

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Tue 8/9

01:55-10:20

1 stop18h 25m

฿31,794

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 18/5

20:00-19:30

2 stops37h 30m

Seattle/Tacoma Intl

Sun 24/5

01:50-13:45

2 stops21h 55m

฿32,379

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 16/9

14:35-19:15

2 stops42h 40m

Seattle/Tacoma Intl

Sat 19/9

01:15-10:20

1 stop19h 05m

฿33,353

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 10/9

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Sat 12/9

01:55-19:10

2 stops27h 15m

฿33,548

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 10/9

10:10-19:40

2 stops23h 30m

Seattle/Tacoma Intl

Sat 12/9

01:30-19:10

2 stops27h 40m

฿34,295

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 16/9

10:10-19:40

2 stops23h 30m

Seattle/Tacoma Intl

Sat 19/9

00:30-19:10

2 stops28h 40m

฿34,425

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 6/8

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Tue 29/9

01:15-10:20

1 stop19h 05m

฿34,555

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 11/7

17:20-16:35

1 stop37h 15m

Seattle/Tacoma Intl

Sun 6/9

01:15-16:20

1 stop25h 05m

฿34,685

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 13/5

11:55-19:30

2 stops21h 35m

Seattle/Tacoma Intl

Tue 30/6

01:50-13:45

2 stops21h 55m

฿35,659

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 9/7

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Mon 7/9

01:55-13:45

2 stops21h 50m

฿35,789

Flights are sorted by cheapest return flights first.

Deals found on 2/5

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

How much does it cost for a return flight from Chiang Mai to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 2 May 2026.
Get a feel of what it's like to fly with EVA Air,China Airlines, andเดลต้า 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
8.5
Very Good
1,439 reviews
Check prices

Boarding

8.4

Crew

8.7

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
EVA Air
8.5
Very Good
1,439 reviews
EVA Air
8.5
Very Good
1,439 reviews
Check prices

Boarding

8.4

Crew

8.7

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
China Airlines
8.3
Very Good
819 reviews
EVA Air
8.5
Very Good
1,439 reviews
Check prices

Boarding

8.4

Crew

8.7

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
เดลต้า
7.9
Good
8,464 reviews
EVA Air
8.5
Very Good
1,439 reviews
Check prices

Boarding

8.4

Crew

8.7

Entertainment

8.0

Food

8.1

Comfort

8.3

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

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.

  • How long is the flight from Chiang Mai to Seattle?

    A quick flight from Chiang Mai to Seattle can take about 22h 25m. China Airlines provides one of the quickest options available for as low as ฿31,794. 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.

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

    Currently priced at ฿24,366, China Airlines will fly you from Chiang Mai to Seattle and back. In addition to China Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from EVA Air and เดลต้า - these airlines can fly you to your destination from ฿26,107 and ฿27,488, respectively. China Airlines is currently priced 17% 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

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Alternative routes for Chiang Mai to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Portland flights

Top 3 airlines flying from Chiang Mai to Seattle

Discover the top 3 airlines that operate flights from Chiang Mai to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 2 May 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest฿24,366Average฿28,946FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapest฿26,107Average฿31,431FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿27,488Average฿30,880FlexibilityNo cancel feeOn-timeN/A
Search เดลต้า flights

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?

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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