CA $535 Cheap Flights from Seattle (SEA) to Chiang Mai (CNX)

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards

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

Prices were available within the past 7 days and start at CA $535 for one-way flights and CA $1,046 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Asiana Airlines
Asiana Airlines
China Airlines
Singapore Airlines
STARLUX Airlines
Singapore Airlines
Asiana Airlines
Asiana Airlines
Korean Air

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

February is typically the cheapest month to fly

From CA $969 - CA $1,563 per traveller.

Graph displaying average flight prices per month

Flight from Seattle to Chiang Mai (SEA - CNX) route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Chiang Mai Intl.
Airlines serving
Asiana Airlines, China Eastern Airlines, EVA Airways
Roundtrip price
CA $1,046
Distance
11511 km

Seattle to Chiang Mai Flights

The easy way to book your flights from Seattle to Chiang Mai 

With Expedia, it’s simple to find and book flights to Chiang Mai from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Chiang Mai Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Chiang Mai today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Chiang Mai Intl., CNX 

Sort your search results by price to find great deals on your flight from Seattle to Chiang Mai—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Chiang Mai from Seattle currently is just CA $1,046 rising to CA $1,293.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Chiang Mai  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Chiang Mai from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Chiang Mai with Expedia today.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Chiang Mai Intl. Airport (CNX)?
If you're planning on travelling from SEA to Chiang Mai Intl. Airport (CNX), round-trip journeys start from CA $1,046. This figure is based on airfares available within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book now and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Chiang Mai Airport?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from Sea-Tac Airport to Chiang Mai Airport that have flexible change policies?
Flights from SEA to Chiang Mai Airport offering flexible change policies are available from several airlines. Simply use our "No change fees" filter when searching. You'll only need to cover the difference in ticket price, without any added fees to worry about.
How many hours is the flight from Seattle - Tacoma Intl. Airport (SEA) to Chiang Mai Airport?
From Seattle - Tacoma Intl. Airport (SEA) to CNX, you'll be in the air for around 17 hours and 40 minutes. If you've been looking forward to finishing that epic novel, now's the best time to do it.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Chiang Mai Airport?
SeaTac to Chiang Mai is around 11,600 kilometres, so be prepared to spend quite a while in the air. Don't forget to pack all the essentials, from your toothbrush to your hairbrush. Throw in a few snacks to munch on throughout your flight too.
Which airlines fly direct from Sea-Tac Airport to Chiang Mai Airport?
Flying directly between Seattle - Tacoma Intl. Airport (SEA) and Chiang Mai Intl. Airport (CNX) isn't possible at present. However, you'll still be able to book a flight to Chiang Mai with at least one stop.
Are SEA to CNX 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 any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains as far ahead as 12 months in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

Seattle nearby Airports

Seattle Paine Field Intl. Airport

*Available to Expedia members.