$477+ Cheap flights from Chiang Mai (CNX) to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
Oct 12 — Oct 191
Round-trip
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
Cheapest
Best
Last-minute
One-way
Cheapest flights from Chiang Mai to SeattleExplore 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 September 12, 2026.
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 September 12, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:20 am -
1 stop23h 45m
Thu 10/2912:00 pm -
1 stop20h 45m
Deal found 9/11![Korean Air logo]()
$787
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.
Wed 11/412:20 am -
1 stop23h 45m
Sun 11/812:10 am -
1 stop31h 35m
Deal found 9/11![Korean Air logo]()
$805
This Korean Air deal was found by Cheapflights users on 9/9. 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.
Tue 12/812:20 am -
1 stop23h 45m
Tue 12/2911:00 am -
1 stop20h 45m
Deal found 9/9![Korean Air logo]()
$806
This SmartFares deal was found by Cheapflights users on 9/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:35 am -
1 stop21h 05m
Sat 10/3111:50 pm -
1 stop20h 45m
Deal found 9/9![EVA Air logo]()
$896
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Wed 12/911:50 am -
1 stop21h 20m
Tue 12/2912:10 am -
1 stop19h 25m
Deal found 9/9![EVA Air logo]()
$897
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Wed 12/95:00 pm -
2 stops31h 09m
Tue 12/2911:45 pm -
1 stop25h 15m
Deal found 9/9![Multiple Airlines logo]()
$912
This Delta deal was found by Cheapflights users on 9/9. 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 12/1012:20 am -
1 stop23h 45m
Tue 12/297:55 pm -
2 stops59h 50m
Deal found 9/9![Delta logo]()
$918
This iWofly 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:35 am -
1 stop21h 45m
Tue 10/271:10 am -
1 stop19h 25m
Deal found 9/10![EVA Air logo]()
$941
Best flights from Chiang Mai to SeattleDiscover carefully curated flight deals from Chiang Mai to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Chiang Mai to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:20 am -
1 stop23h 45m
Thu 10/2912:00 pm -
1 stop20h 45m
Deal found 9/11![Korean Air logo]()
$787
This Delta deal was found by Cheapflights users on 9/9. 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 12/1012:20 am -
2 stops31h 58m
Tue 12/297:55 pm -
2 stops59h 50m
Deal found 9/9![Delta logo]()
$918
This China Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 11/511:25 am -
1 stop21h 45m
Sun 11/812:10 am -
2 stops42h 15m
Deal found 9/7![China Airlines logo]()
$1,009
This EVA Air 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:10 pm -
2 stops20h 20m
Sun 11/812:10 am -
2 stops27h 50m
Deal found 9/10![EVA Air logo]()
$1,052
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.
Wed 11/412:20 am -
1 stop23h 45m
Sun 11/812:10 am -
1 stop31h 35m
Deal found 9/11![Korean Air logo]()
$805
This Korean Air deal was found by Cheapflights users on 9/9. 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.
Thu 12/1012:20 am -
1 stop28h 50m
Tue 12/2911:00 am -
1 stop20h 45m
Deal found 9/9![Korean Air logo]()
$806
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 12/812:20 am -
2 stops52h 54m
Tue 12/297:55 pm -
2 stops59h 50m
Deal found 9/9![Delta logo]()
$918
This Korean Air deal was found by Cheapflights users on 9/9. 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.
Wed 12/912:20 am -
1 stop23h 45m
Tue 12/2911:00 am -
1 stop20h 45m
Deal found 9/9![Korean Air logo]()
$806
This Delta deal was found by Cheapflights users on 9/9. 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.
Sun 12/1312:20 am -
2 stops34h 58m
Tue 12/2911:00 am -
1 stop20h 45m
Deal found 9/9![Delta logo]()
$918
Last-minute flights from Chiang Mai to SeattleDiscover last-minute flight deals from Chiang Mai to Seattle. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Chiang Mai to Seattle. Data last updated September 12, 2026 and is based on user searches.
This Gother 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 Gother is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:10 am -
2 stops20h 00m
Tue 10/2712:45 am -
1 stop25h 15m
Deal found 9/10![Multiple Airlines logo]()
$918
This iWofly 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:35 am -
1 stop21h 45m
Tue 10/271:10 am -
1 stop19h 25m
Deal found 9/10![EVA Air logo]()
$941
This SmartFares deal was found by Cheapflights users on 9/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:35 am -
1 stop21h 05m
Sat 10/3111:50 pm -
1 stop20h 45m
Deal found 9/9![EVA Air logo]()
$896
This Booking.com deal was found by Cheapflights users on 9/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:55 am -
2 stops21h 25m
Sat 10/3111:50 pm -
2 stops24h 50m
Deal found 9/9![Multiple Airlines logo]()
$1,022
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:20 am -
1 stop23h 45m
Thu 10/2912:00 pm -
1 stop20h 45m
Deal found 9/11![Korean Air logo]()
$787
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:10 am -
2 stops19h 55m
Wed 10/2812:45 am -
2 stops28h 15m
Deal found 9/11![Multiple Airlines logo]()
$1,011
One-way flights from Chiang Mai to SeattleSearch for one-way flight options from Chiang Mai to Seattle. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Chiang Mai to Seattle. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:20 am -
1 stop26h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$477
This Korean Air deal was found by Cheapflights users on 9/7. 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.
Wed 11/1812:20 am -
1 stop23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Korean Air logo]()
$478
This China Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 10/111:20 am -
1 stop21h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![China Airlines logo]()
$481
This Booking.com deal was found by Cheapflights users on 9/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:00 pm -
1 stop37h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![STARLUX Airlines logo]()
$495
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:30 pm -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:30 pm -
3 stops46h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$567
This China Airlines deal was found by Cheapflights users on 9/7. 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.
Sun 1/1711:25 am -
1 stop21h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![China Airlines logo]()
$569
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 September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $787 (Kiwi.com) |
One-way from | $477 (Delta) |
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 7,457,451 searches. Data last updated September 12, 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
Cheapest round-trip
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Mon 12/21
12:20 am-11:56 am
1 stop26h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$477
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Thu 12/24
12:20 am-11:56 am
1 stop26h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$477
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Wed 11/18
12:20 am-11:51 am
1 stop26h 31m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$477
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Wed 11/18
12:20 am-9:05 am
1 stop23h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$478
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Thu 12/24
12:20 am-9:05 am
1 stop23h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$479
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Mon 12/21
12:20 am-9:05 am
1 stop23h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$479
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Sat 12/5
12:20 am-11:56 am
1 stop26h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$479
Quickest round-trip
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Thu 1/14
11:25 am-6:10 pm
1 stop21h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$481
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Tue 10/27
12:20 am-10:05 am
1 stop23h 45m
Seattle/Tacoma Intl
Thu 10/29
12:00 pm-10:45 pm
1 stop20h 45m
$787
Chiang MaiSeattle
CNX Chiang Mai - SEA Seattle/Tacoma Intl
CNXSEA
Chiang Mai
Wed 11/4
12:20 am-9:05 am
1 stop23h 45m
Seattle/Tacoma Intl
Sun 11/8
12:10 am-10:45 pm
1 stop31h 35m
$805
Showing 1-10 of 17 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Chiang Mai-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chiang Mai-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chiang Mai-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chiang Mai-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chiang Mai-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
CNX-SEA
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.
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 September 12, 2026.
Read through reviews of airlines operating flights from Chiang Mai to Seattle, such as EVA Air and China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.7
Overall
8.5
Entertainment
8.0
Food
8.1
Comfort
8.3
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentPadma,Aug 2026
TPE - SFO
Crew
8.7
Overall
8.5
Entertainment
8.0
Food
8.1
Comfort
8.3
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentPadma,Aug 2026
TPE - SFO
Crew
8.7
Overall
8.5
Entertainment
8.0
Food
8.1
Comfort
8.3
Boarding
8.5
Reviews
1 / 20
10.0
ExcellentPadma,Aug 2026
TPE - SFO
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
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
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Seattle flight routes
Alternative routes for Chiang Mai to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chiang Mai to Seattle by cabin class
Find flights from Chiang Mai to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chiang Mai and Seattle flights
Browse other Chiang Mai and Seattle flight options. Last updated on September 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.
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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$816 | Average$1,049 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$898 | Average$1,033 | FlexibilityNo cancel fee | On-time70% |