฿13,705 Cheap Flights from Seattle (SEA) to Chiang Mai (CNX)

View ฿13,705 flight on Tue, 2 Sep 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Chiang Mai Intl. Airport (CNX)

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Cheap Flights from Seattle (SEA) to Chiang Mai (CNX)

Prices were available within the past 7 days and start at ฿13,705 for one-way flights and ฿25,480 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Mon, 6 Oct - Tue, 14 Oct
SEA
Seattle
CNX
Chiang Mai
฿25,480 Return, found 2 days ago
฿25,480
Return
found 2 days ago
Select Asiana Airlines flight, departing Mon, 6 Oct from Seattle to Chiang Mai, returning Tue, 14 Oct, priced at ฿25,480 found 2 days ago
Asiana Airlines
Mon, 6 Oct - Mon, 13 Oct
SEA
Seattle
CNX
Chiang Mai
฿26,260 Return, found 2 days ago
฿26,260
Return
found 2 days ago
Select Asiana Airlines flight, departing Mon, 6 Oct from Seattle to Chiang Mai, returning Mon, 13 Oct, priced at ฿26,260 found 2 days ago
STARLUX Airlines
Mon, 6 Oct - Thu, 9 Oct
SEA
Seattle
CNX
Chiang Mai
฿27,735 Return, found 2 days ago
฿27,735
Return
found 2 days ago
Select STARLUX Airlines flight, departing Mon, 6 Oct from Seattle to Chiang Mai, returning Thu, 9 Oct, priced at ฿27,735 found 2 days ago
STARLUX Airlines
Wed, 8 Oct - Tue, 14 Oct
SEA
Seattle
CNX
Chiang Mai
฿28,385 Return, found 2 days ago
฿28,385
Return
found 2 days ago
Select STARLUX Airlines flight, departing Wed, 8 Oct from Seattle to Chiang Mai, returning Tue, 14 Oct, priced at ฿28,385 found 2 days ago
STARLUX Airlines
Mon, 6 Oct - Sat, 11 Oct
SEA
Seattle
CNX
Chiang Mai
฿28,810 Return, found 2 days ago
฿28,810
Return
found 2 days ago
Select STARLUX Airlines flight, departing Mon, 6 Oct from Seattle to Chiang Mai, returning Sat, 11 Oct, priced at ฿28,810 found 2 days ago
China Airlines
Tue, 7 Oct - Tue, 14 Oct
SEA
Seattle
CNX
Chiang Mai
฿29,075 Return, found 2 days ago
฿29,075
Return
found 2 days ago
Select China Airlines flight, departing Tue, 7 Oct from Seattle to Chiang Mai, returning Tue, 14 Oct, priced at ฿29,075 found 2 days ago
STARLUX Airlines
Mon, 6 Oct - Wed, 15 Oct
SEA
Seattle
CNX
Chiang Mai
฿29,460 Return, found 2 days ago
฿29,460
Return
found 2 days ago
Select STARLUX Airlines flight, departing Mon, 6 Oct from Seattle to Chiang Mai, returning Wed, 15 Oct, priced at ฿29,460 found 2 days ago
STARLUX Airlines
Wed, 8 Oct - Wed, 15 Oct
SEA
Seattle
CNX
Chiang Mai
฿30,110 Return, found 2 days ago
฿30,110
Return
found 2 days ago
Select STARLUX Airlines flight, departing Wed, 8 Oct from Seattle to Chiang Mai, returning Wed, 15 Oct, priced at ฿30,110 found 2 days ago
EVA Airways
Tue, 7 Oct - Thu, 9 Oct
SEA
Seattle
CNX
Chiang Mai
฿30,535 Return, found 2 days ago
฿30,535
Return
found 2 days ago
Select EVA Airways flight, departing Tue, 7 Oct from Seattle to Chiang Mai, returning Thu, 9 Oct, priced at ฿30,535 found 2 days ago
Swiss International Air Lines
Sat, 20 Jun - Sat, 27 Jun
SEA
Seattle
CNX
Chiang Mai
฿129,025 Return, found 6 days ago
฿129,025
Return
found 6 days ago
Select Swiss International Air Lines flight, departing Sat, 20 Jun from Seattle to Chiang Mai, returning Sat, 27 Jun, priced at ฿129,025 found 6 days ago

Find the cheapest month to fly from Seattle (SEA) to Chiang Mai (CNX)

February is typically the cheapest month to fly

From ฿22,795 - ฿36,778 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Chiang Mai route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Chiang Mai Intl.
Return price
฿25,480
Distance
11511 km

Perfect flights from Seattle to Chiang Mai

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Chiang Mai. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Seattle - Tacoma Intl. to Chiang Mai Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿13,705 and roundtrip prices from ฿25,480. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Chiang Mai Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Chiang Mai.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to Chiang Mai Intl. Airport (CNX)?
The lowest price advertised for a round-trip flight from SEA to Chiang Mai Intl. Airport (CNX) is ฿25,480. But you better get moving. This price is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Chiang Mai Intl. Airport (CNX)?
We understand that your situation can change unexpectedly, so we've made it as simple as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Chiang Mai Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Chiang Mai Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to Chiang Mai Intl. Airport (CNX)?
You'll have 11,600 kilometres to cover on the long-haul SeaTac to Chiang Mai route. Wear layers of comfortable clothes and consider taking earplugs and a sleep mask.
Which airlines fly direct from SEA to Chiang Mai Airport?
If you want to fly straight from Sea-Tac Airport to CNX, you'll need to book a flight with at least one stop. Unfortunately, there are no airlines that fly directly between these airports.
Are Seattle - Tacoma Intl. Airport (SEA) to Chiang Mai Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from SEA to Chiang Mai Intl. Airport (CNX) last minute could be your ticket to a great deal. However, it could end up costing a great deal more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

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