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) – 78% of one-stop connections • Incheon Intl (ICN) – 17% of one-stop connections • Singapore Changi (SIN) – 4% of one-stop connections

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

Yes. Flexible dates can save you up to 48% on flights from Seattle to Chiang Mai. Wednesday is the cheapest departure day at ฿30,839 return on average, while Friday is the most expensive at ฿58,908, a difference of ฿28,069. KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Chiang Mai?

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

How expensive are last-minute Seattle to Chiang Mai flights?

Last-minute fares on this route (booked within two weeks of departure) run 10% above the ฿33,643 route average. Book 20 weeks before departure for the lowest fares.

How long is a flight from Seattle to Chiang Mai?

A direct flight from Seattle to Chiang Mai takes 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 ฿15,362, which is 17% 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 49m, compared to 22h 23m via Incheon Intl (ICN) and 41h 37m 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.

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

Return flights from Seattle to Chiang Mai range from ฿29,266 to ฿43,087, with an average of ฿33,643 over the past 12 months. Anything below ฿29,266 counts as a good deal.

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

Return flights from Seattle to Chiang Mai typically range from ฿29,266 to ฿43,087. The lowest price found in the past 5 days was ฿28,576 on Korean Air.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Seattle to Chiang Mai. It's 9% cheaper than the average day, while Friday is the most expensive, with prices 75% higher.

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 ฿27,461 return. •December (฿56,138) and June (฿48,775) are the most expensive months. •The price difference between flying in the cheapest and most expensive months is 104% on average. This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Chiang Mai the cheapest?

Flights from Seattle to Chiang Mai are cheapest 20 weeks before departure. Booking in this window typically costs about 25% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Which airline is the cheapest to fly from Seattle to Chiang Mai?

Korean Air (฿28,576) and เดลต้า (฿29,353) are the cheapest airlines to fly return from Seattle to Chiang Mai according to KAYAK data over the last 5 days.

What is the most popular stopover airport when flying from Seattle to Chiang Mai?

Taipei City Taiwan Taoyuan Intl (TPE) is the most popular stopover for the Seattle to Chiang Mai route. 78% of KAYAK users who booked 1-stop return journeys over the past 3 months connected via TPE.

What is the cheapest stopover airport when flying from Seattle to Chiang Mai?

Flights via Incheon Intl (ICN) offer the most affordable fares, with an average return price of ฿30,617. Based on KAYAK data over the past 3 months.

When flying from Seattle to Chiang Mai, which airport offers the shortest stopover?

Taipei City Taiwan Taoyuan Intl (TPE) had the shortest average connection time for Seattle to Chiang Mai stopovers at 12h 35m over the past 3 months.

฿14,085 CHEAP FLIGHTS from Seattle to Chiang Mai (SEA - CNX)

Save 30% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest return flight

฿28,576

Typical prices: ฿29,266-฿43,087

Korean Air

Thu 18/1Wed 31/1

SEA - CNX • 1 stop

Cheapest one-way flight

฿14,085

Typical prices: ฿15,469-฿22,001

Multiple Airlines

Tue 6/2

SEA - CNX • 2 stops

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

When to book

20 weeks

in advance

Our data shows that travellers who book at least 20 weeks in advance save around 25% compared to booking last minute.

Insights

When to travel

February

Cheapest • 18% price drop

December

Most popular

Good to know

Top stopover airports

Incheon Intl (ICN)

Cheapest • Avg ฿30,617 (return)

Taipei City Taiwan Taoyuan Intl (TPE)

Shortest trip • 20h 49m (one-way)

Insights

Start a new search

KAYAK searches hundreds of sites at once to find you the best travel deals.

We hope you enjoy your trip to Chiang Mai!

Flight Deals

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

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

Return

One-way

Last minute

Recent return flight deals from Seattle to Chiang Mai

Mon 18 Jan - Sun 31 Jan

11:00 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

00:20 - 14:10CNX Chiang Mai-SEA Seattle/Tacoma Intl

28h 50m1 stop Incheon Intl

฿28,576Korean Air

3+ days ago

Mon 1 Feb - Sun 7 Feb

12:50 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

18h 55m1 stop Incheon Intl

00:20 - 11:50CNX Chiang Mai-SEA Seattle/Tacoma Intl

26h 30m1 stop Incheon Intl

฿29,353เดลต้า

1 day ago

Mon 15 Feb - Sun 21 Mar

11:00 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

00:20 - 10:05CNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

฿29,454Korean Air

1 day ago

Mon 15 Feb - Sun 21 Mar

16:15 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

39h 30m2 stops Las Vegas Harry Reid Intl Incheon Intl

00:20 - 15:10CNX Chiang Mai-SEA Seattle/Tacoma Intl

28h 50m1 stop Incheon Intl

฿29,657Korean Air

1 day ago

Sun 17 Jan - Mon 8 Mar

14:30 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

41h 15m2 stops Los Angeles Incheon Intl

00:20 - 09:05CNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

฿30,028Korean Air

3+ days ago

Sun 31 Jan - Tue 9 Feb

12:08 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

43h 37m2 stops Los Angeles Incheon Intl

00:20 - 14:10CNX Chiang Mai-SEA Seattle/Tacoma Intl

28h 50m1 stop Incheon Intl

฿30,062Korean Air

1 day ago

Sun 17 Jan - Sun 7 Mar

17:55 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

37h 50m2 stops Los Angeles Incheon Intl

00:20 - 20:31CNX Chiang Mai-SEA Seattle/Tacoma Intl

35h 11m2 stops Incheon Intl Los Angeles

฿30,231Korean Air

3+ days ago

Wed 10 Feb - Thu 18 Feb

11:00 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

00:20 - 14:10CNX Chiang Mai-SEA Seattle/Tacoma Intl

28h 50m1 stop Incheon Intl

฿30,265Korean Air

1 day ago

Mon 9 Nov - Sun 6 Dec

11:00 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

20h 45m1 stop Incheon Intl

00:20 - 14:10CNX Chiang Mai-SEA Seattle/Tacoma Intl

28h 50m1 stop Incheon Intl

฿30,400Korean Air

3+ days ago

Mon 9 Nov - Sun 6 Dec

07:20 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

24h 25m2 stops San Francisco Incheon Intl

00:20 - 14:10CNX Chiang Mai-SEA Seattle/Tacoma Intl

28h 50m1 stop Incheon Intl

฿30,602Korean Air

3+ days ago

Recent last minute flight deals from Seattle to Chiang Mai

Mon 2 Nov - Wed 18 Nov

07:16 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

24h 29m2 stops San Francisco Incheon Intl

00:20 - 09:05CNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

฿30,602Korean Air

3+ days ago

Thu 29 Oct - Wed 18 Nov

11:25 - 09:50SEA Seattle/Tacoma Intl-CNX Chiang Mai

32h 25m1 stop Hong Kong Intl

10:35 - 08:45CNX Chiang Mai-SEA Seattle/Tacoma Intl

37h 10m1 stop Hong Kong Intl

฿30,771Cathay Pacific

3+ days ago

Mon 2 Nov - Wed 18 Nov

07:16 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

24h 29m2 stops San Francisco Incheon Intl

00:20 - 20:09CNX Chiang Mai-SEA Seattle/Tacoma Intl

34h 49m2 stops Incheon Intl Los Angeles

฿30,974Korean Air

3+ days ago

Wed 28 Oct - Tue 17 Nov

13:30 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

19h 15m1 stop Incheon Intl

00:20 - 11:51CNX Chiang Mai-SEA Seattle/Tacoma Intl

26h 31m1 stop Incheon Intl

฿31,075เดลต้า

3+ days ago

Wed 28 Oct - Tue 17 Nov

14:30 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

42h 15m2 stops Los Angeles Incheon Intl

00:20 - 09:05CNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

฿31,379Korean Air

3+ days ago

Sat 31 Oct - Tue 17 Nov

11:25 - 09:50SEA Seattle/Tacoma Intl-CNX Chiang Mai

32h 25m1 stop Hong Kong Intl

10:35 - 08:45CNX Chiang Mai-SEA Seattle/Tacoma Intl

37h 10m1 stop Hong Kong Intl

฿31,413Cathay Pacific

3+ days ago

Sat 31 Oct - Mon 16 Nov

11:25 - 09:50SEA Seattle/Tacoma Intl-CNX Chiang Mai

32h 25m1 stop Hong Kong Intl

10:35 - 08:45CNX Chiang Mai-SEA Seattle/Tacoma Intl

37h 10m1 stop Hong Kong Intl

฿31,683Cathay Pacific

3+ days ago

Wed 28 Oct - Tue 17 Nov

14:30 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

42h 15m2 stops Los Angeles Incheon Intl

00:20 - 16:30CNX Chiang Mai-SEA Seattle/Tacoma Intl

31h 10m2 stops Incheon Intl San Francisco

฿31,751Korean Air

3+ days ago

Wed 28 Oct - Mon 16 Nov

11:25 - 09:50SEA Seattle/Tacoma Intl-CNX Chiang Mai

32h 25m1 stop Hong Kong Intl

19:40 - 08:45CNX Chiang Mai-SEA Seattle/Tacoma Intl

28h 05m1 stop Hong Kong Intl

฿32,055Cathay Pacific

3+ days ago

Sun 1 Nov - Tue 17 Nov

07:16 - 22:45SEA Seattle/Tacoma Intl-CNX Chiang Mai

24h 29m2 stops San Francisco Incheon Intl

00:20 - 09:05CNX Chiang Mai-SEA Seattle/Tacoma Intl

23h 45m1 stop Incheon Intl

฿32,291Korean Air

3+ days ago

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 with more confidence.

Prices

Airlines

Stopovers

How much is a return flight from Seattle to Chiang Mai? This analysis is based on the cheapest return price found on KAYAK in the last 12 months by searching for a flight from Seattle to Chiang Mai departing in January.
What's the cheapest day of the week to fly from Seattle to Chiang Mai?: Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Seattle to Chiang Mai. It's 9% cheaper than the average day, while Friday is the most expensive, with prices 75% higher.
What is the cheapest month to fly from Seattle to Chiang Mai? KAYAK internal proprietary data takes all prices for each month over the last 12 months for return flights from Seattle to Chiang Mai, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.: •February is the cheapest month to fly from Seattle to Chiang Mai at ฿27,461 return.
•December (฿56,138) and June (฿48,775) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 104% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.
When are flights from Seattle to Chiang Mai the cheapest?: Flights from Seattle to Chiang Mai are cheapest 20 weeks before departure. Booking in this window typically costs about 25% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Low season	May
High season	December
Cheapest flight	฿14,085

Beat the crowds with an average 42% drop in travellers.

The most popular month to fly with an average 73% increase in travellers.

One-way flight 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

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

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
How long is a flight from Seattle to Chiang Mai?
A direct flight from Seattle to Chiang Mai takes 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 much should I expect to pay for a Seattle to Chiang Mai flight?
Return flights from Seattle to Chiang Mai range from ฿29,266 to ฿43,087, with an average of ฿33,643 over the past 12 months. Anything below ฿29,266 counts as a good deal.
How expensive are last-minute Seattle to Chiang Mai flights?
Last-minute fares on this route (booked within two weeks of departure) run 10% above the ฿33,643 route average. Book 20 weeks before departure for the lowest fares.
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 ฿15,362, which is 17% below the typical average for this route.
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 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) – 78% of one-stop connections
• Incheon Intl (ICN) – 17% of one-stop connections
• Singapore Changi (SIN) – 4% of one-stop connections
Can I save money by using flexible dates for flights from Seattle to Chiang Mai?
Yes. Flexible dates can save you up to 48% on flights from Seattle to Chiang Mai. Wednesday is the cheapest departure day at ฿30,839 return on average, while Friday is the most expensive at ฿58,908, a difference of ฿28,069.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.
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 49m, compared to 22h 23m via Incheon Intl (ICN) and 41h 37m 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.
What popular places can I visit in Chiang Mai?
Some of the most popular sights in Chiang Mai are Tha Phae Gate, Chang Puak Gate, and Chiang Mai Gate. These are among the most viewed places in Chiang Mai on KAYAK.

If your dates are flexible, aim for a Wednesday departure and avoid flying on Friday. On this route, Wednesday flights average ฿30,839, which is about ฿28,069 less than Friday fares (48% savings) based on the last 12 months.
For the best chance at a low fare, aim to book around 20 weeks before you fly. On this route, that window historically saves about 25% versus last-minute pricing (KAYAK booking data, last 12 months).
If you can choose when to travel, plan your Seattle to Chiang Mai trip for February. Fares historically average ฿27,461 return in that month – typically ฿28,677 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.

• De Lanna Hotel
• Le Naview @Prasingh
• Bodhi Serene, Chiang Mai

More options for your flight from Seattle to Chiang Mai

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SEA - CNX

฿14,085 Find Cheap Flights from Seattle to Chiang Mai – Compare and Save

Everything you should know

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

Recent return flight deals from Seattle to Chiang Mai

Recent one-way flight deals from Seattle to Chiang Mai

Recent last minute flight deals from Seattle to Chiang Mai

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

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

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

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

When are flights from Seattle to Chiang Mai the cheapest?

Which airline is the cheapest to fly from Seattle to Chiang Mai?

What is the most popular stopover airport when flying from Seattle to Chiang Mai?

What is the cheapest stopover airport when flying from Seattle to Chiang Mai?

When flying from Seattle to Chiang Mai, which airport offers the shortest stopover?

Key details for Seattle to Chiang Mai flights

Low season

High season

Cheapest flight

When to book flights from Seattle to Chiang Mai

Your Seattle to Chiang Mai flight questions, answered

Your guide to booking Seattle to Chiang Mai flights

More options for your flight from Seattle to Chiang Mai

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

Information on your arrival and departure airports

Cabin class types available on flights from Seattle to Chiang Mai

Flights from domestic origins to Chiang Mai

Flights to other popular destinations

Find deals for your return flight