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$471+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$820
(Gotogate)

One-way from

$471
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$942
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. 28% potential increase in price ($415 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($96 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 12, 2025.

This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2011:25 amCNX - SEA
1 stop21h 50mChina Airlines
Thu 1/112:10 amSEA - CNX
1 stop19h 15mChina Airlines
Deal found 6/11$804
This oojo deal was found by Cheapflights users on 6/12. 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.
Thu 12/1812:15 amCNX - SEA
1 stop23h 45mKorean Air
Tue 1/2011:00 amSEA - CNX
1 stop21h 05mKorean Air
Deal found 6/12$814
This Gotogate deal was found by Cheapflights users on 6/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/912:05 amCNX - SEA
1 stop26h 40mAsiana Airlines
Fri 7/112:30 pmSEA - CNX
1 stop19h 10mAsiana Airlines
Deal found 6/10$820
This oojo deal was found by Cheapflights users on 6/12. 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.
Fri 12/1911:50 amCNX - SEA
1 stop21h 20mEVA Air
Mon 1/1912:10 amSEA - CNX
1 stop19h 25mEVA Air
Deal found 6/12$840
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1912:15 amCNX - SEA
1 stop28h 40mMultiple Airlines
Fri 1/212:10 amSEA - CNX
1 stop31h 55mMultiple Airlines
Deal found 6/11$894
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 12/1812:15 amCNX - SEA
1 stop23h 45mDelta
Tue 1/206:15 amSEA - CNX
2 stops25h 50mDelta
Deal found 6/10$947
This STARLUX Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/195:20 pmCNX - SEA
1 stop37h 15mSTARLUX Airlines
Thu 10/161:15 amSEA - CNX
1 stop25h 05mSTARLUX Airlines
Deal found 6/10$1,091
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/198:00 pmCNX - SEA
2 stops30h 45mQatar Airways
Mon 10/134:30 pmSEA - CNX
2 stops26h 50mQatar Airways
Deal found 6/10$1,566
This Air France deal was found by Cheapflights users on 6/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/188:00 pmCNX - SEA
2 stops53h 35mKLM
Fri 10/171:55 pmSEA - CNX
2 stops33h 50mKLM
Deal found 6/10$2,208

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 June 12, 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 7/9

12:05 am-12:45 pm

1 stop26h 40m

Seattle/Tacoma Intl

Fri 7/11

2:30 pm-11:40 pm

1 stop19h 10m

$820

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 7/10

11:35 am-7:50 pm

1 stop22h 15m

Seattle/Tacoma Intl

Thu 7/10

1:10 am-10:25 am

1 stop19h 15m

$974

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 8/19

11:20 am-7:45 pm

1 stop22h 25m

Seattle/Tacoma Intl

Mon 10/13

1:10 am-10:20 am

1 stop19h 10m

$1,056

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 7/27

6:35 am-4:35 pm

2 stops48h 00m

Seattle/Tacoma Intl

Sun 8/3

2:30 pm-11:40 pm

1 stop19h 10m

$1,062

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 8/18

11:15 pm-10:15 pm

2 stops37h 00m

Seattle/Tacoma Intl

Fri 10/17

12:25 pm-9:55 pm

1 stop19h 30m

$1,067

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 8/19

5:20 pm-4:35 pm

1 stop37h 15m

Seattle/Tacoma Intl

Thu 10/16

1:15 am-4:20 pm

1 stop25h 05m

$1,091

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 8/18

11:15 pm-2:01 pm

1 stop28h 46m

Seattle/Tacoma Intl

Wed 10/15

6:15 am-9:55 pm

2 stops25h 40m

$1,380

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 8/19

8:00 pm-12:45 pm

2 stops30h 45m

Seattle/Tacoma Intl

Mon 10/13

4:30 pm-9:20 am

2 stops26h 50m

$1,566

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 8/18

8:00 pm-11:35 am

2 stops53h 35m

Seattle/Tacoma Intl

Fri 10/17

1:55 pm-1:45 pm

2 stops33h 50m

$2,208

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 6/22

6:35 am-7:15 pm

2 stops26h 40m

$471

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 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 July is currently the most expensive (average of $391). 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

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
9.1
Wonderful
177 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

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
1,202 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

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
1,088 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

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
738 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

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
440 reviews
STARLUX Airlines
9.1
Wonderful
177 reviews

Boarding

9.0

Food

8.8

Crew

9.3

Comfort

9.0

Overall

9.1

Entertainment

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?

    Asiana Airlines, at $820, was found to be the cheapest airline from Chiang Mai to Seattle.Alternate airlines to your destination round-trip include Korean Air and EVA Air. Users have found that Asiana Airlines is 21% 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 ($517), Korean Air ($541), and STARLUX Airlines ($570).

  • 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 July is currently the most expensive (average of $391). 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 Chiang Mai?

Book flights to Chiang Mai if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

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.
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Chiang Mai to Portland 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$622Average$721FlexibilityNo cancel feeOn-time76%
EVA AirCheapest$788Average$974FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$793Average$829FlexibilityNo cancel feeOn-time81%

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