SEA - CNX

฿14,144 Find Cheap Flights from Seattle to Chiang Mai – Compare and Save

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Everything you should know

Cheapest return flight
฿25,677
Typical prices: ฿28,820-฿42,636
Korean Air
Wed 24/10Tue 30/10
SEA - CNX • 1 stop
Cheapest one-way flight
฿14,144
Typical prices: ฿15,116-฿21,564
Korean Air
Sat 10/11
SEA - CNX • 1 stop
Direct flights
Not available
There are currently no direct flights between Seattle and Chiang Mai. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 19% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Incheon Intl (ICN)
Cheapest • Avg ฿30,175 (return)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 20h 35m (one-way)
Insights
Insights
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We hope you enjoy your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Seattle to Chiang Mai

Sat 24 Oct - Fri 30 Oct
Korean Air Logo
12:50 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
19h 55m1 stop Incheon Intl
Korean Air Logo
00:20 - 10:05CNX  Chiang Mai-SEA Seattle/Tacoma Intl
23h 45m1 stop Incheon Intl
฿25,677Korean Air
Mon 26 Oct - Sun 1 Nov
Korean Air Logo
12:00 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
20h 45m1 stop Incheon Intl
Korean Air Logo
00:20 - 09:05CNX  Chiang Mai-SEA Seattle/Tacoma Intl
23h 45m1 stop Incheon Intl
฿26,040Korean Air
Mon 26 Oct - Sun 1 Nov
Korean Air Logo
07:32 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
25h 13m2 stops Los Angeles Incheon Intl
Korean Air Logo
00:20 - 09:05CNX  Chiang Mai-SEA Seattle/Tacoma Intl
23h 45m1 stop Incheon Intl
฿26,370Korean Air
Fri 30 Oct - Thu 12 Nov
เดลต้า Logo
13:30 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
19h 15m1 stop Incheon Intl
เดลต้า Logo
00:20 - 11:51CNX  Chiang Mai-SEA Seattle/Tacoma Intl
26h 31m1 stop Incheon Intl
฿26,866เดลต้า
Fri 30 Oct - Thu 12 Nov
เดลต้า Logo
13:30 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
19h 15m1 stop Incheon Intl
เดลต้า Logo
00:20 - 11:51CNX  Chiang Mai-SEA Seattle/Tacoma Intl
26h 31m1 stop Incheon Intl
฿26,899เดลต้า
Tue 12 Jan - Sun 24 Jan
Korean Air Logo
11:00 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
20h 45m1 stop Incheon Intl
Korean Air Logo
00:20 - 09:05CNX  Chiang Mai-SEA Seattle/Tacoma Intl
23h 45m1 stop Incheon Intl
฿26,998Korean Air
Wed 13 Jan - Tue 26 Jan
Korean Air Logo
17:55 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
37h 50m2 stops Los Angeles Incheon Intl
Korean Air Logo
00:20 - 09:05CNX  Chiang Mai-SEA Seattle/Tacoma Intl
23h 45m1 stop Incheon Intl
฿27,164Korean Air
Fri 30 Oct - Thu 12 Nov
Korean Air Logo
07:32 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
49h 13m2 stops Los Angeles Incheon Intl
Korean Air Logo
00:20 - 14:10CNX  Chiang Mai-SEA Seattle/Tacoma Intl
28h 50m1 stop Incheon Intl
฿27,197Korean Air
Tue 12 Jan - Mon 25 Jan
Korean Air Logo
11:00 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
20h 45m1 stop Incheon Intl
Korean Air Logo
00:20 - 20:31CNX  Chiang Mai-SEA Seattle/Tacoma Intl
35h 11m2 stops Incheon Intl Los Angeles
฿27,362Korean Air
Fri 30 Oct - Thu 12 Nov
Korean Air Logo
07:32 - 22:45SEA  Seattle/Tacoma Intl-CNX Chiang Mai
25h 13m2 stops Los Angeles Incheon Intl
Korean Air Logo
00:20 - 16:30CNX  Chiang Mai-SEA Seattle/Tacoma Intl
31h 10m2 stops Incheon Intl San Francisco
฿27,527Korean Air
Booking Insights

Price, demand, and travel trends for Seattle to Chiang Mai flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seattle to Chiang Mai with more confidence.

How much is a return flight from Seattle to Chiang Mai?

Return flights from Seattle to Chiang Mai start at ฿25,677. Prices are below average for this route right now, with typical return fares ranging from ฿28,820 to ฿42,636. The lowest price found in the past 5 days was ฿25,677 on Korean Air.

What's the cheapest day of the week to fly from Seattle to Chiang Mai?

Sunday is the cheapest day of the week to fly from Seattle to Chiang Mai and is 9% cheaper than the average day. Thursday is the most expensive day with flight prices 17% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Seattle to Chiang Mai?

  • February is the cheapest month to fly from Seattle to Chiang Mai at ฿27,031 return.
  • December (฿54,922) and June (฿47,718) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 103% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Seattle to Chiang Mai flights

Low season

May

Cheapest flight

฿14,144
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flights from Seattle to Chiang Mai

When to book flights from Seattle to Chiang Mai

Are your dates flexible? Find out the best times to travel from Seattle to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Seattle to Chiang Mai flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from Seattle to Chiang Mai?

    Flights from Seattle to Chiang Mai usually depart from Seattle/Tacoma Intl (SEA) and arrive at Chiang Mai (CNX).

  • Which cabin classes can I book on flights from Seattle to Chiang Mai?

    Two cabin classes are available on flights from Seattle to Chiang Mai:

    • Economy class
    • Premium Economy Class

  • Which airports do connecting flights from Seattle to Chiang Mai pass through?

    One-stop flights from Seattle to Chiang Mai most commonly connect through:

    • Taipei City Taiwan Taoyuan Intl (TPE) – 89% of one-stop connections
    • Incheon Intl (ICN) – 5% of one-stop connections
    • Singapore Changi (SIN) – 5% of one-stop connections

    Taipei City Taiwan Taoyuan Intl (TPE) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Chiang Mai?

    On the Seattle to Chiang Mai route, being flexible with your departure day can save you up to 23%. Sunday is the cheapest day at ฿30,270 return on average, while Thursday is the most expensive at ฿39,027 – a ฿8,757 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in Chiang Mai?

    Some of the most popular sights in Chiang Mai are Tha Phae Gate, Wat Jed Yot, and Chang Puak Gate. These are among the most viewed places in Chiang Mai on KAYAK.

  • How long is a flight from Seattle to Chiang Mai?

    A direct flight from Seattle to Chiang Mai takes 0h 00m, covering 18,622 km.

  • Do I need a passport to fly from Seattle to Chiang Mai?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How are flight prices from Seattle to Chiang Mai looking right now?

    One-way fares from Seattle to Chiang Mai are currently lower than usual. Average one-way flight prices are about ฿15,310, which is 15% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from Seattle to Chiang Mai?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time of 20h 35m, compared to 22h 34m via Incheon Intl (ICN) and 41h 03m via Singapore Changi (SIN).

  • What is the time difference between Seattle and Chiang Mai?

    Chiang Mai is 14 hours ahead of Seattle (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Chiang Mai Airport (CNX)?

    Chiang Mai Airport (CNX) hosts 5 major car hire companies, with daily rates starting from around ฿411 for economy cars. Top options include:
    • Drive Car Rental
    • Alamo
    • Sixt
    • Hertz
    • Yesaway

  • How much should I expect to pay for a Seattle to Chiang Mai flight?

    Return flights from Seattle to Chiang Mai range from ฿28,820 to ฿42,636, with an average of ฿33,168 over the past 12 months. Anything below ฿28,820 counts as a good deal.

Your guide to booking Seattle to Chiang Mai flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure instead of Thursday. On this route, Sunday flights average ฿30,270 – about ฿8,757 less than Thursday (22% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Chiang Mai trip for February. Fares historically average ฿27,031 return in that month – typically ฿27,891 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Chiang Mai Airport.
    - Le Naview @Prasingh
    - Bodhi Serene, Chiang Mai
    - 99 The Gallery Hotel

More options for your flight from Seattle to Chiang Mai

Complete your trip to Chiang Mai with a hotel stay or car hire

Car rentals in Chiang Mai
Hotels in Chiang Mai