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$487+ Cheap flights from Chiang Mai (CNX) to Seattle (SEA)

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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap 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 julio 30, 2025.

Round-trip from

$829
(Delta)

One-way from

$487
(Trip.com)

Popular in

August

Cheapest in

May
From Chiang Mai to Seattle/Tacoma Intl
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One-way flight from Chiang Mai to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 33% potential increase in price ($515 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($108 potential savings vs. average RT price).
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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 julio 30, 2025.

This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/1311:15 pmCNX - SEA
1 stop28h 25mDelta
sáb. 9/2012:35 pmSEA - CNX
1 stop19h 20mDelta
Deal found 7/30$829
This Asiana Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/2012:45 amCNX - SEA
1 stop26h 00mAsiana Airlines
sáb. 9/62:15 pmSEA - CNX
1 stop19h 25mAsiana Airlines
Deal found 7/30$857
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/139:35 amCNX - SEA
2 stops20h 35mMultiple Airlines
vie. 9/191:15 amSEA - CNX
2 stops29h 10mMultiple Airlines
Deal found 7/30$879
This oojo deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/211:35 amCNX - SEA
1 stop21h 55mEVA Air
sáb. 10/1112:35 pmSEA - CNX
2 stops31h 50mEVA Air
Deal found 7/30$956
This STARLUX Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/215:20 pmCNX - SEA
1 stop37h 15mSTARLUX Airlines
dom. 9/71:15 amSEA - CNX
1 stop25h 05mSTARLUX Airlines
Deal found 7/30$961
This Korean Air deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/219:45 pmCNX - SEA
2 stops38h 27mKorean Air
dom. 9/712:35 pmSEA - CNX
1 stop19h 20mKorean Air
Deal found 7/30$1,149
This China Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/228:00 pmCNX - SEA
2 stops37h 45mChina Airlines
lun. 9/81:40 amSEA - CNX
1 stop18h 40mChina Airlines
Deal found 7/30$1,194

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated julio 30, 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

sáb. 9/13

11:15 pm-1:40 pm

1 stop28h 25m

Seattle/Tacoma Intl

sáb. 9/20

12:35 pm-9:55 pm

1 stop19h 20m

$829

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

mié. 8/20

12:45 am-12:45 pm

1 stop26h 00m

Seattle/Tacoma Intl

lun. 9/8

2:15 pm-11:40 pm

1 stop19h 25m

$857

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

sáb. 9/13

9:35 am-4:10 pm

2 stops20h 35m

Seattle/Tacoma Intl

vie. 9/19

1:15 am-8:25 pm

2 stops29h 10m

$879

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

sáb. 8/30

11:15 pm-10:50 am

1 stop25h 35m

Seattle/Tacoma Intl

mié. 9/17

12:50 pm-9:55 pm

1 stop19h 05m

$881

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

jue. 10/2

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

sáb. 10/11

12:35 pm-10:25 am

2 stops31h 50m

$956

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

jue. 8/21

5:20 pm-4:35 pm

1 stop37h 15m

Seattle/Tacoma Intl

dom. 9/7

1:15 am-4:20 pm

1 stop25h 05m

$961

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

mar. 12/30

7:05 am-6:35 pm

2 stops26h 30m

$487

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 8/31

11:20 am-7:45 pm

1 stop22h 25m

$794

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

jue. 8/7

12:45 am-12:45 pm

1 stop26h 00m

$911

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

mié. 12/31

7:45 pm-11:40 am

2 stops54h 55m

$943

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 14 results
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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.
Estimated round-trip 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 layover airport for flights from Chiang Mai to Seattle?

Share of 1-stop round-trip flights from Chiang Mai to Seattle chosen by Cheapflights users in the past 12 months, using the same layover each way.

Taipei City (TPE) – chosen by Cheapflights users on 67% of 1-stop itineraries from Chiang Mai to Seattle on Cheapflights.

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

Average round-trip fare for 1-stop flights from Chiang Mai to Seattle, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Incheon (ICN) is the most affordable 1-stop option, with an average round-trip price of $803.

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

Shortest average travel time for 1-stop one-way flights from Chiang Mai to Seattle, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Taipei City (TPE) have the shortest average one-way travel time for 1-stop routes: 21h 55m.

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

Average layover duration for 1-stop one-way flights from Chiang Mai to Seattle, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Taipei City (TPE) offer the fastest connection on this route, with an average layover time of 4h 40m.

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 julio 30, 2025.
Read through reviews of airlines operating flights from Chiang Mai to Seattle, such as STARLUX Airlines, EVA Air, and Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
199 reviews

Crew

9.3

Entertainment

8.9

Food

8.8

Overall

9.0

Boarding

9.0

Comfort

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
199 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Crew

9.3

Entertainment

8.9

Food

8.8

Overall

9.0

Boarding

9.0

Comfort

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,222 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Crew

9.3

Entertainment

8.9

Food

8.8

Overall

9.0

Boarding

9.0

Comfort

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,121 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Crew

9.3

Entertainment

8.9

Food

8.8

Overall

9.0

Boarding

9.0

Comfort

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
754 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Crew

9.3

Entertainment

8.9

Food

8.8

Overall

9.0

Boarding

9.0

Comfort

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Asiana Airlines
8.2
Very good
467 reviews
STARLUX Airlines
9.0
Wonderful
199 reviews

Crew

9.3

Entertainment

8.9

Food

8.8

Overall

9.0

Boarding

9.0

Comfort

8.9

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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?

    Delta, at $829, was found to be the cheapest airline from Chiang Mai to Seattle.Alternate airlines to your destination round-trip include Asiana Airlines and EVA Air. Users have found that Delta is 19% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chiang Mai to Seattle one-way?

    The cheapest airlines for a one-way flight from Chiang Mai to Seattle are China Airlines ($794), Qatar Airways ($943), and Delta ($1,116).

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Chiang Mai to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Chiang Mai to Seattle (average of $238). Flying from Chiang Mai to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
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Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
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Shoreline
Federal Way
Shelton

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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.
Suvarnabhumi to Seattle flights
Suvarnabhumi to Portland flights
Chiang Mai to Portland flights
Suvarnabhumi to Pasco flights
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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 2,558,603 searches. Data last updated julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$622Average$721FlexibilityNo cancel feeOn-time76%
EVA AirCheapest$788Average$926FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$802Average$833FlexibilityNo cancel feeOn-time81%

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