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Cheap flights from Chiang Mai to Seattle from ฿16,778

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
18 May — 25 May1
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 18 April 2026.

Wed 4/1100:15
CNX
-
SEA
1 stop23h 45m
Korean Air
Sun 29/1111:00
SEA
-
CNX
1 stop20h 55m
Korean Air
Deal found 16/4฿26,462
Sun 8/1111:25
CNX
-
SEA
1 stop21h 45m
Multiple Airlines
Sun 29/1123:55
SEA
-
CNX
2 stops32h 40m
Multiple Airlines
Deal found 16/4฿29,881
Thu 5/1111:25
CNX
-
SEA
1 stop21h 45m
Multiple Airlines
Sun 29/1123:55
SEA
-
CNX
2 stops31h 25m
Multiple Airlines
Deal found 16/4฿30,265
Wed 14/1011:30
CNX
-
SEA
2 stops40h 52m
แอร์แคนาดา
Sun 18/1010:30
SEA
-
CNX
2 stops40h 05m
แอร์แคนาดา
Deal found 13/4฿30,297
Sat 7/1110:10
CNX
-
SEA
2 stops22h 20m
EVA Air
Sat 28/1100:10
SEA
-
CNX
1 stop19h 25m
EVA Air
Deal found 16/4฿30,680
Sun 21/611:20
CNX
-
SEA
1 stop21h 55m
China Airlines
Sun 30/801:55
SEA
-
CNX
1 stop18h 25m
China Airlines
Deal found 14/4฿31,000
Tue 23/617:20
CNX
-
SEA
1 stop36h 50m
STARLUX Airlines
Sun 30/801:15
SEA
-
CNX
1 stop25h 05m
STARLUX Airlines
Deal found 14/4฿31,160
Sun 5/711:20
CNX
-
SEA
1 stop22h 25m
China Airlines
Mon 7/901:55
SEA
-
CNX
1 stop18h 25m
China Airlines
Deal found 13/4฿31,415
Wed 24/611:30
CNX
-
SEA
2 stops36h 37m
Multiple Airlines
Mon 31/815:00
SEA
-
CNX
2 stops30h 15m
Multiple Airlines
Deal found 14/4฿31,543
Wed 4/1100:15
CNX
-
SEA
1 stop23h 45m
เดลต้า
Wed 2/1211:00
SEA
-
CNX
1 stop20h 55m
เดลต้า
Deal found 16/4฿31,639
Thu 5/1100:15
CNX
-
SEA
1 stop26h 36m
เดลต้า
Mon 30/1121:25
SEA
-
CNX
2 stops34h 30m
เดลต้า
Deal found 16/4฿31,799
Tue 5/517:20
CNX
-
SEA
1 stop36h 50m
STARLUX Airlines
Sun 12/701:15
SEA
-
CNX
1 stop25h 05m
STARLUX Airlines
Deal found 16/4฿31,927

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 18 April 2026.

Round-trip from

฿30,297

One-way from

฿16,778

Popular in

September

Cheapest in

February

Average price

฿33,748
แอร์แคนาดา
  • แอร์แคนาดา
  • 14/10-18/10
  • 4 total stops
  • 80h 57m total
  • Chiang Mai to Seattle
Search Deals
China Airlines
  • China Airlines
  • 1/10
  • 1 total stop
  • 21h 55m total
  • Chiang Mai to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿92,923 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿19,444 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 18 April 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

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 14/10

20:00-19:15

2 stops37h 15m

Seattle/Tacoma Intl

Sat 17/10

01:15-10:20

1 stop19h 05m

฿33,301
Fastest return journey

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 7/7

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Thu 10/9

01:55-10:20

1 stop18h 25m

฿34,388

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 15/8

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Tue 18/8

01:55-10:20

1 stop18h 25m

฿34,388

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 21/6

11:20-19:15

1 stop21h 55m

Seattle/Tacoma Intl

Sat 29/8

01:55-13:45

2 stops21h 50m

฿36,113

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 6/8

20:00-12:25

2 stops54h 25m

Seattle/Tacoma Intl

Wed 30/9

16:25-13:45

2 stops31h 20m

฿36,753

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 1/7

11:55-12:25

2 stops38h 30m

Seattle/Tacoma Intl

Wed 12/8

16:25-09:20

2 stops26h 55m

฿38,351

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 23/7

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Tue 22/9

01:15-10:20

1 stop19h 05m

฿38,958

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 10/7

20:00-12:25

2 stops30h 25m

Seattle/Tacoma Intl

Wed 9/9

16:25-11:15

2 stops28h 50m

฿39,181

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 6/8

11:20-19:45

1 stop22h 25m

Seattle/Tacoma Intl

Tue 29/9

01:15-19:10

2 stops27h 55m

฿39,405

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 5/7

20:00-12:25

2 stops30h 25m

Seattle/Tacoma Intl

Wed 9/9

16:25-09:20

2 stops26h 55m

฿39,501

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 16 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 18 April 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
1,418 reviews
Check prices

Crew

8.7

Entertainment

8.0

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.4

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
1,418 reviews
EVA Air
8.5
Very Good
1,418 reviews
Check prices

Crew

8.7

Entertainment

8.0

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.4

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
817 reviews
EVA Air
8.5
Very Good
1,418 reviews
Check prices

Crew

8.7

Entertainment

8.0

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.4

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
8,423 reviews
EVA Air
8.5
Very Good
1,418 reviews
Check prices

Crew

8.7

Entertainment

8.0

Comfort

8.3

Overall

8.5

Food

8.1

Boarding

8.4

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 37h 15m. China Airlines provides one of the quickest options available for as low as ฿33,301. The distance from Chiang Mai to Seattle is about 11571 km.

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

    Currently priced at ฿23,978, 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 ฿25,691 and ฿27,050, 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 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest฿23,978Average฿28,485FlexibilityNo cancel feeOn-time70%
Search China Airlines flights
EVA AirCheapest฿25,691Average฿30,930FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿27,050Average฿30,388FlexibilityNo 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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