$500+ Cheap flights from Seattle (SEA) to Chiang Mai (CNX)
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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CNX
May 10 — May 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Seattle to Chiang Mai 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 Seattle to Chiang Mai
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to Chiang MaiExplore the most affordable flight options available from Seattle to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.
Explore the most affordable flight options available from Seattle to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.
This FlightHub deal was found by Cheapflights users on 4/6. 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.
Thu 10/110:15 am
SEA
- CNX
1 stop40h 20m
Singapore Airlines
Sat 10/3112:05 pm
CNX
- SEA
1 stop34h 05m
Singapore Airlines
Deal found 4/6![Singapore Airlines logo]()
$852
This FlightHub deal was found by Cheapflights users on 4/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Tue 11/1011:25 am
CNX
- SEA
1 stop21h 45m
China Airlines
Deal found 4/7![China Airlines logo]()
$856
This oojo deal was found by Cheapflights users on 4/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:10 am
SEA
- CNX
1 stop19h 15m
China Airlines
Tue 12/2211:25 am
CNX
- SEA
1 stop21h 45m
China Airlines
Deal found 4/7![China Airlines logo]()
$860
This Korean Air deal was found by Cheapflights users on 4/5. 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 11/1111:00 am
SEA
- CNX
1 stop20h 55m
Korean Air
Tue 2/2312:15 am
CNX
- SEA
1 stop23h 45m
Korean Air
Deal found 4/5![Korean Air logo]()
$871
This BusinessClass deal was found by Cheapflights users on 4/7. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/121:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Tue 11/1011:25 am
CNX
- SEA
1 stop21h 45m
China Airlines
Deal found 4/7![China Airlines logo]()
$877
This Korean Air deal was found by Cheapflights users on 4/7. 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.
Sun 10/256:55 pm
SEA
- CNX
2 stops38h 00m
Korean Air
Mon 12/2112:15 am
CNX
- SEA
1 stop23h 45m
Korean Air
Deal found 4/7![Korean Air logo]()
$888
This FlightHub deal was found by Cheapflights users on 4/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Sun 11/811:25 am
CNX
- SEA
1 stop21h 45m
China Airlines
Deal found 4/7![China Airlines logo]()
$894
This oojo deal was found by Cheapflights users on 4/5. 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 9/31:55 am
SEA
- CNX
1 stop18h 25m
China Airlines
Mon 9/1411:20 am
CNX
- SEA
1 stop22h 25m
China Airlines
Deal found 4/5![China Airlines logo]()
$895
This China Airlines deal was found by Cheapflights users on 4/6. 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 9/271:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Mon 11/211:25 am
CNX
- SEA
1 stop21h 45m
China Airlines
Deal found 4/6![China Airlines logo]()
$897
Best flights from Seattle to Chiang MaiDiscover carefully curated flight deals from Seattle to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
Discover carefully curated flight deals from Seattle to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
This EVA Air deal was found by Cheapflights users on 4/5. 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.
Wed 9/91:30 am
SEA
- CNX
1 stop18h 55m
EVA Air
Mon 9/148:00 pm
CNX
- SEA
2 stops37h 00m
EVA Air
Deal found 4/5![EVA Air logo]()
$960
This China Airlines deal was found by Cheapflights users on 4/6. 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 4/261:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Sun 5/1711:20 am
CNX
- SEA
1 stop21h 55m
China Airlines
Deal found 4/6![China Airlines logo]()
$1,165
This Singapore Airlines deal was found by Cheapflights users on 4/9. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:15 am
SEA
- CNX
1 stop40h 20m
Singapore Airlines
Mon 9/145:35 pm
CNX
- SEA
1 stop29h 10m
Singapore Airlines
Deal found 4/9![Singapore Airlines logo]()
$1,175
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:10 am
SEA
- CNX
2 stops27h 00m
Multiple Airlines
Tue 8/118:00 pm
CNX
- SEA
2 stops30h 25m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,330
This Qatar Airways deal was found by Cheapflights users on 4/5. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:25 pm
SEA
- CNX
2 stops31h 20m
Qatar Airways
Sun 5/178:00 pm
CNX
- SEA
2 stops32h 05m
Qatar Airways
Deal found 4/5![Qatar Airways logo]()
$1,374
This EVA Air deal was found by Cheapflights users on 4/6. 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.
Fri 4/241:30 am
SEA
- CNX
1 stop18h 55m
EVA Air
Sat 5/2311:35 am
CNX
- SEA
1 stop21h 15m
EVA Air
Deal found 4/6![EVA Air logo]()
$1,348
Last-minute flights from Seattle to Chiang MaiDiscover last-minute flight deals from Seattle to Chiang Mai. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Chiang Mai. Data last updated April 10, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Sat 4/251:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Tue 5/1911:20 am
CNX
- SEA
1 stop21h 55m
China Airlines
Deal found 4/5![China Airlines logo]()
$958
This oojo deal was found by Cheapflights users on 4/5. 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.
Sun 4/261:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Tue 5/1911:20 am
CNX
- SEA
1 stop21h 55m
China Airlines
Deal found 4/5![China Airlines logo]()
$918
This oojo deal was found by Cheapflights users on 4/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Mon 5/411:20 am
CNX
- SEA
1 stop21h 55m
China Airlines
Deal found 4/9![China Airlines logo]()
$942
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Sun 4/261:30 am
SEA
- CNX
1 stop18h 55m
Multiple Airlines
Mon 5/1811:35 am
CNX
- SEA
2 stops38h 55m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$954
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Mon 4/271:30 am
SEA
- CNX
1 stop18h 55m
Multiple Airlines
Tue 5/1911:35 am
CNX
- SEA
2 stops38h 55m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$916
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Mon 4/271:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Tue 5/1911:20 am
CNX
- SEA
1 stop21h 55m
China Airlines
Deal found 4/5![China Airlines logo]()
$920
This BusinessClass deal was found by Cheapflights users on 4/5. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/271:15 am
SEA
- CNX
1 stop19h 05m
China Airlines
Thu 5/2111:20 am
CNX
- SEA
1 stop21h 55m
China Airlines
Deal found 4/5![China Airlines logo]()
$941
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Mon 4/271:30 am
SEA
- CNX
1 stop18h 55m
EVA Air
Wed 5/2011:35 am
CNX
- SEA
1 stop21h 55m
EVA Air
Deal found 4/5![EVA Air logo]()
$960
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Mon 4/278:05 pm
SEA
- CNX
2 stops24h 20m
Multiple Airlines
Tue 5/1911:35 am
CNX
- SEA
2 stops38h 55m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$967
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Mon 4/271:30 am
SEA
- CNX
1 stop18h 55m
Multiple Airlines
Wed 5/2011:35 am
CNX
- SEA
2 stops35h 22m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$973
One-way flights from Seattle to Chiang MaiSearch for one-way flight options from Seattle to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
Search for one-way flight options from Seattle to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/5. 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 4/211:30 am
SEA
- CNX
1 stop18h 55m
EVA Air
Deal found 4/5![EVA Air logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Wed 4/2212:50 pm
SEA
- CNX
2 stops38h 05m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$510
This EVA Air deal was found by Cheapflights users on 4/7. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:30 am
SEA
- CNX
1 stop18h 55m
EVA Air
Deal found 4/7![EVA Air logo]()
$520
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Sat 8/14:20 pm
SEA
- CNX
3 stops34h 35m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 4/5. 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.
Thu 4/1612:55 am
SEA
- CNX
2 stops50h 00m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$540
This Trip.com deal was found by Cheapflights users on 4/5. 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.
Thu 4/1612:30 am
SEA
- CNX
1 stop19h 55m
EVA Air
Deal found 4/5![EVA Air logo]()
$544
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 8/31:05 pm
SEA
- CNX
3 stops35h 30m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$560
This Ovago deal was found by Cheapflights users on 4/6. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:15 am
SEA
- CNX
1 stop40h 20m
Singapore Airlines
Deal found 4/6![Singapore Airlines logo]()
$568
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Sun 8/211:03 am
SEA
- CNX
3 stops38h 07m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$573
Find flight deals from Seattle to Chiang Mai
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Chiang Mai (CNX). 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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $852 (FlightHub) |
One-way from | $500 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $867 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Chiang Mai 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 April 10, 2026.
Use the filters below to find and compare flights from Seattle to Chiang Mai that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Wed 9/9
1:30 am-10:25 am
1 stop18h 55m
Chiang Mai
Mon 9/14
8:00 pm-7:00 pm
2 stops37h 00m
$960
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Sun 4/26
1:15 am-10:20 am
1 stop19h 05m
Chiang Mai
Sun 5/17
11:20 am-7:15 pm
1 stop21h 55m
$1,165
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Thu 9/10
10:15 am-4:35 pm
1 stop40h 20m
Chiang Mai
Mon 9/14
5:35 pm-8:45 am
1 stop29h 10m
$1,175
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Mon 7/27
2:10 am-7:10 pm
2 stops27h 00m
Chiang Mai
Tue 8/11
8:00 pm-12:25 pm
2 stops30h 25m
$1,330
Quickest round-trip
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Fri 4/24
1:30 am-10:25 am
1 stop18h 55m
Chiang Mai
Sat 5/23
11:35 am-6:50 pm
1 stop21h 15m
$1,348
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Mon 4/27
4:25 pm-1:45 pm
2 stops31h 20m
Chiang Mai
Sun 5/17
8:00 pm-2:05 pm
2 stops32h 05m
$1,374
Cheapest one-way
Quickest one-way
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Tue 4/21
1:30 am-10:25 am
1 stop18h 55m
$500
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Wed 4/22
12:50 pm-4:55 pm
2 stops38h 05m
$510
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Wed 9/9
1:30 am-10:25 am
1 stop18h 55m
$520
SeattleChiang Mai
SEA - CNX
SEACNX
Seattle/Tacoma Intl
Sat 8/1
4:20 pm-4:55 pm
3 stops34h 35m
$538
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Seattle to Chiang Mai
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Chiang Mai in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Seattle-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Chiang Mai flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Chiang Mai 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 Seattle-Chiang Mai 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 Seattle to Chiang Mai
Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Seattle with our price prediction graph.
SEA-CNX
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 Seattle to Chiang Mai
How far ahead should I book a flight from Seattle to Chiang Mai?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Chiang Mai. Price data was last updated on April 3, 2026.
To ensure you get the cheapest price possible for a flight from Seattle to Chiang Mai, you should look to book at least 35 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Seattle to Chiang Mai?
Currently, September is the cheapest month in which you can book a flight from Seattle to Chiang Mai (average of $674). Flying from Seattle to Chiang Mai in June is currently the most expensive (average of $1,067). 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.
How much does it cost to fly round-trip from Seattle to Chiang Mai?
Reviews of airlines servicing Chiang Mai
Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated April 10, 2026.
Peruse reviews from past customers who have flown with EVA Air,Korean Air, andChina Airlines from Seattle to Chiang Mai to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.0
Overall
8.5
Boarding
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
TPE - SFO
Entertainment
8.0
Overall
8.5
Boarding
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
TPE - SFO
Entertainment
8.0
Overall
8.5
Boarding
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
TPE - SFO
Entertainment
8.0
Overall
8.5
Boarding
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
TPE - SFO
Entertainment
8.0
Overall
8.5
Boarding
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
TPE - SFO
Entertainment
8.0
Overall
8.5
Boarding
8.4
Crew
8.7
Comfort
8.3
Food
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
TPE - SFO
Related info for your journey
Find useful and relevant information for your journey from Seattle to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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
Chiang Mai flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Seattle
Popular flights
Alternative routes for Seattle to Chiang Mai
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Chiang Mai
Explore flights to Chiang Mai departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 10, 2026.
Complete your trip
Complete your trip to Chiang Mai by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Chiang Mai by cabin class
Find flights from Seattle to Chiang Mai, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Chiang Mai flights
Browse other Seattle and Chiang Mai flight options. Last updated on April 10, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on April 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Seattle to Chiang Mai
Discover the top 5 airlines that operate flights from Seattle to Chiang Mai. 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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$418 | Average$858 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$675 | Average$951 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$736 | Average$819 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$768 | Average$1,094 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$853 | Average$956 | FlexibilityNo cancel fee | On-time74% |