HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$503+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chiang Mai to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 septiembre 11, 2025.

Round-trip from

$853
(oojo)

One-way from

$503
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$1,083
From Chiang Mai to Seattle/Tacoma Intl
Search Deals
One-way flight from Chiang Mai to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 34% potential increase in price ($553 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($106 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 septiembre 11, 2025.

This oojo deal was found by Cheapflights users on 9/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/105:35 pmCNX - SEA
1 stop15h 35mChina Airlines
jue. 12/412:10 amSEA - CNX
1 stop19h 15mChina Airlines
Deal found 9/10$857
This FlightHub deal was found by Cheapflights users on 9/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/1012:05 pmCNX - SEA
2 stops41h 26mMultiple Airlines
vie. 12/58:00 pmSEA - CNX
2 stops22h 25mMultiple Airlines
Deal found 9/11$909
This FlightHub deal was found by Cheapflights users on 9/10. 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.
lun. 11/1010:10 amCNX - SEA
2 stops23h 00mEVA Air
jue. 12/412:10 amSEA - CNX
1 stop19h 25mEVA Air
Deal found 9/10$911
This Korean Air deal was found by Cheapflights users on 9/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/912:15 amCNX - SEA
1 stop23h 45mKorean Air
vie. 12/511:00 amSEA - CNX
1 stop20h 55mKorean Air
Deal found 9/11$927

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 septiembre 11, 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

lun. 11/10

5:35 pm-6:10 pm

1 stop15h 35m

Seattle/Tacoma Intl

jue. 12/4

12:10 am-10:25 am

1 stop19h 15m

$853

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

lun. 11/10

10:10 am-6:10 pm

2 stops23h 00m

Seattle/Tacoma Intl

jue. 12/4

12:10 am-10:35 am

1 stop19h 25m

$907

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

lun. 11/10

12:05 pm-2:31 pm

2 stops41h 26m

Seattle/Tacoma Intl

vie. 12/5

8:00 pm-9:25 am

2 stops22h 25m

$909

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 11/9

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

vie. 12/5

11:00 am-10:55 pm

1 stop20h 55m

$927

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

dom. 11/9

12:15 am-4:22 pm

2 stops31h 07m

Seattle/Tacoma Intl

vie. 12/5

11:00 am-10:55 pm

1 stop20h 55m

$1,046

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

lun. 9/22

10:25 pm-7:15 pm

2 stops58h 50m

$503

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

lun. 9/22

11:15 pm-10:40 am

1 stop25h 25m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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 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.

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 septiembre 11, 2025.
Read through reviews of airlines operating flights from Chiang Mai to Seattle, such as Korean Air and Asiana Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Asiana Airlines
8.2
Very good
479 reviews
Korean Air
8.4
Very good
1,139 reviews

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

Crew

8.7

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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?

    Airlines like China Airlines and EVA Air fly from Chiang Mai to Seattle in about 15h 35m. The time it takes to get you to your destination can typically vary by up to 7h 25m. The distance from Chiang Mai to Seattle is about 7190 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Asiana Airlines, at $622, was found to be the cheapest airline from Chiang Mai to Seattle. An alternate airline flying to your destination would be Korean Air. Users have found that Asiana Airlines is 39% cheaper than the other options available to this destination.

  • 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 $388). 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
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

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.
Suvarnabhumi to Seattle flights
Suvarnabhumi to Portland flights
Suvarnabhumi to Pasco flights
Suvarnabhumi to Spokane flights
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 2,558,603 searches. Data last updated septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$622Average$658FlexibilityNo cancel feeOn-time76%
Korean AirCheapest$802Average$833FlexibilityNo cancel feeOn-time81%

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.