Cheap flights from Seattle to Chiang Mai from $419
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Chiang Mai departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Mon 11/9
12:30 pm-10:45 pm
1 stop19h 15m
Chiang Mai
Sun 12/6
12:20 am-11:56 am
1 stop26h 36m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Tue 11/3
11:00 am-10:45 pm
1 stop20h 45m
Chiang Mai
Sun 11/22
12:20 am-9:05 am
1 stop23h 45m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Mon 11/9
8:15 pm-10:45 pm
2 stops35h 30m
Chiang Mai
Sun 12/6
12:20 am-2:10 pm
1 stop28h 50m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Sun 11/8
12:10 am-10:45 pm
1 stop31h 35m
Chiang Mai
Sun 12/6
12:20 am-4:44 pm
2 stops31h 24m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Tue 2/16
12:50 pm-10:45 pm
1 stop18h 55m
Chiang Mai
Sun 2/28
12:20 am-11:51 am
1 stop26h 31m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Tue 2/16
12:50 pm-10:45 pm
1 stop18h 55m
Chiang Mai
Wed 3/3
12:20 am-11:51 am
1 stop26h 31m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Sun 11/8
12:10 am-10:35 am
1 stop19h 25m
Chiang Mai
Mon 12/7
11:50 am-6:10 pm
1 stop21h 20m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Sun 4/4
1:30 am-10:25 am
1 stop18h 55m
Chiang Mai
Wed 4/14
11:35 am-7:30 pm
1 stop21h 55m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Mon 3/22
1:10 am-10:25 am
1 stop19h 15m
Chiang Mai
Thu 3/25
11:25 am-7:10 pm
1 stop21h 45m
SeattleChiang Mai
SEA Seattle/Tacoma Intl - CNX Chiang Mai
SEACNX
Seattle/Tacoma Intl
Thu 3/18
1:10 am-10:25 am
1 stop19h 15m
Chiang Mai
Sat 4/3
11:20 am-7:15 pm
1 stop21h 55m
See travel insights to Chiang Mai from
How to get the cheapest flight ticket from Seattle to Chiang Mai
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Seattle and Chiang Mai?
Prices are currently low for flights on this route.
Typical prices usually range from $929 to $1,019.The lowest price recently found on this route was $846.
What is the cheapest month to fly to Chiang Mai?
If you don’t want to visit Chiang Mai in February, then you should wait until April to fly from Seattle, when ticket prices are also cheap, with an average price of $867.
How far in advance should I book a flight from Seattle to Chiang Mai?
You are more likely to see cheaper flights to Chiang Mai from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Chiang Mai for around $1,090 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chiang Mai from Seattle for as low as $838 on momondo.
Can stopping save me money on Seattle to Chiang Mai flights?
You could potentially save up to 6% on your flight if you consider stops on a Seattle to Chiang Mai flight.
How have Seattle to Chiang Mai flight prices changed over time?
What is the cheapest airline that flies from Seattle/Tacoma Intl to Chiang Mai?
Korean Air and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Chiang Mai
What airlines fly to Chiang Mai?
EVA Air, China Airlines and Korean Air are the top three most popular airlines that fly to Chiang Mai from Seattle according to our data. EVA Air is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Chiang Mai. Keep in mind that there are 3 different airlines that fly to Chiang Mai on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Seattle and Chiang Mai?
Taipei City (TPE) was the most common stop: 83% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Seattle to Chiang Mai?
Flights via Taipei City (TPE) offer the lowest average round-trip price of $1,144.
Which layover airport has the shortest travel time from Seattle to Chiang Mai?
Flights connecting via Taipei City (TPE) have the shortest average one-way travel time: 20h 05m.
Which layover airport has the shortest connection time from Seattle to Chiang Mai?
Taipei City (TPE) has the shortest average layover time for this route: 6h 52m.
When to book flights from Seattle to Chiang Mai
Cheap Seattle to Chiang Mai (SEA to CNX) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Chiang Mai
Frequently asked questions about flying from Seattle to Chiang Mai
How far is Seattle/Tacoma Intl to Chiang Mai by plane?
The distance between Seattle/Tacoma Intl and Chiang Mai is about 7178.6 mi. 19h 25m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Chiang Mai Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Chiang Mai Airport refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Chiang Mai Airport?
There are 3 operators available for flights from Seattle/Tacoma Intl Airport to Chiang Mai Airport as of October 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Chiang Mai Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Chiang Mai Airport.
What documentation or ID do you need to fly to Chiang Mai Airport?
The necessary travel and health documents for your Chiang Mai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Chiang Mai?
Based on momondo bookings for flights between Seattle and Chiang Mai, the leading airline is EVA Air, making up 56% of the total bookings. Other popular airlines include China Airlines with 28% and Korean Air with 15%.
Best airlines flying from Seattle to Chiang Mai
Compare and see reviews for airlines that fly from Seattle to Chiang Mai with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $752 | Free Cancellation | Rating 8.4 1,217 reviews | |||
| PriceFrom $797 | Free Cancellation | Rating 8.2 850 reviews | |||
| PriceFrom $814 | Free Cancellation | Rating 8.5 1,546 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Chiang Mai?
Finding the right flight to Chiang Mai from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chiang Mai quick and easy, saving you time and money.
Can I find flights from Seattle to Chiang Mai with flexible booking policies on momondo?
Flights from Seattle to Chiang Mai with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Chiang Mai?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Chiang Mai.
I’m not ready to book a flight from Seattle to Chiang Mai right now. Can momondo alert me if prices change?
Price alerts on flights to Chiang Mai from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.