Find flights
When to book
Airlines
FAQs
Thailand (ภาษาไทย)
ภาษาไทย

Cheap flights from Chiang Mai to Seattle from ฿15,374

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
3 Jan — 10 Jan1
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 4 December 2025.

Wed 24/1221:40CNX - SEA
2 stops34h 50mEVA Air
Tue 30/1223:30SEA - CNX
2 stops30h 30mEVA Air
Deal found 3/12฿28,133
Tue 23/1200:15CNX - SEA
1 stop23h 45mเดลต้า
Tue 30/1222:15SEA - CNX
2 stops33h 40mเดลต้า
Deal found 4/12฿30,844
Wed 24/1215:15CNX - SEA
3 stops31h 50mMultiple Airlines
Mon 29/1200:10SEA - CNX
2 stops30h 45mMultiple Airlines
Deal found 3/12฿37,478
Wed 24/1212:05CNX - SEA
1 stop34h 05mSingapore Airlines
Tue 30/1208:45SEA - CNX
1 stop40h 00mSingapore Airlines
Deal found 4/12฿46,792

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 4 December 2025.

Round-trip from

฿26,283

One-way from

฿15,374

Popular in

January

Cheapest in

April

Average price

฿32,056
EVA Air
  • EVA Air
  • 18/2-24/2
  • 3 total stops
  • 42h 25m total
  • Chiang Mai to Seattle
Search Deals
3/2
  • 3/2
  • 2 total stops
  • 48h 15m total
  • Chiang Mai to Seattle
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (฿78,586 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿22,142 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 4 December 2025.
Use the filters below to find and compare flights from Chiang Mai to Seattle that are best for you.

Fly from

Chiang Mai

Fly to

Seattle

Route

Depart

Return

Price

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 18/2

10:10-18:10

2 stops23h 00m

Seattle/Tacoma Intl

Tue 24/2

00:10-10:35

1 stop19h 25m

฿26,283

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 6/3

00:15-09:00

1 stop23h 45m

Seattle/Tacoma Intl

Mon 9/3

12:00-22:55

1 stop20h 55m

฿27,367

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 18/2

14:05-18:10

2 stops19h 05m

Seattle/Tacoma Intl

Tue 24/2

00:10-09:25

2 stops42h 15m

฿27,973

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 24/12

21:40-17:30

2 stops34h 50m

Seattle/Tacoma Intl

Tue 30/12

23:30-21:00

2 stops30h 30m

฿28,133

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 7/3

10:10-18:10

2 stops23h 00m

Seattle/Tacoma Intl

Sun 8/3

01:10-13:45

2 stops22h 35m

฿29,919

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 6/3

00:15-09:00

1 stop23h 45m

Seattle/Tacoma Intl

Mon 9/3

11:46-22:55

2 stops45h 09m

฿30,748

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 24/12

15:15-08:05

3 stops31h 50m

Seattle/Tacoma Intl

Mon 29/12

00:10-21:55

2 stops30h 45m

฿37,478

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 4/2

06:50-08:05

3 stops40h 15m

฿15,438

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 10/2

22:50-18:40

2 stops34h 50m

฿16,076

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 2/2

22:50-18:40

2 stops34h 50m

฿16,108

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 16 results
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 4 December 2025.
Get a feel of what it's like to fly with EVA Air and เดลต้า 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
1,292 reviews
Check prices

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
EVA Air
8.5
Very Good
1,292 reviews
EVA Air
8.5
Very Good
1,292 reviews
Check prices

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.
เดลต้า
7.9
Good
8,011 reviews
EVA Air
8.5
Very Good
1,292 reviews
Check prices

Crew

8.6

Food

8.1

Entertainment

8.0

Boarding

8.4

Overall

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

TPE - CRK

All was okay except for the medical emergency that happened before our boarding. I wish that the medical emergency response was more immediate.

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 23h. EVA Air provides one of the quickest options available for as low as ฿26,283. 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 ฿25,641, EVA Air will fly you from Chiang Mai to Seattle and back. In addition to EVA Air, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on เดลต้า for as low as ฿26,431. EVA Air is currently priced 10% 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

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.
Chiang Mai to Portland flights

Top 2 airlines flying from Chiang Mai to Seattle

Discover the top 2 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 4 December 2025.
AirlineCheapestAverageFlexibilityOn-time
EVA AirCheapest฿25,641Average฿30,870FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
เดลต้าCheapest฿26,431Average฿30,111FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.