What are the cheapest airlines flying from Seattle to Chiang Mai round-trip?

According to our current data, Asiana Airlines ($945), EVA Air ($996), and Singapore Airlines ($1,044) offers the cheapest pricing from Seattle to Chiang Mai. Users have found that Asiana Airlines is 10% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Seattle to Chiang Mai one-way?

The cheapest airline one-way is Korean Air, with whom users have recently found tickets for as low as $456. However, be on the lookout for offers from Asiana Airlines and China Airlines, as they are both options that can get you from Seattle to Chiang Mai for a low price.

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

Travelers seeking maximum savings on their Seattle to Chiang Mai flight should consider departing on Sunday at noon when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Seattle to Chiang Mai?

Before booking your flight from Seattle to Chiang Mai check out the most popular airlines for this route: EVA Air, China Airlines or Korean Air.

Where are the most common layover locations when flying from Seattle to Chiang Mai?

Most of the time, Seattle to Chiang Mai flights that have layovers will stop in Seoul.

Where are the least popular layover locations for Seattle to Chiang Mai flights?

The least popular layover on flights from Seattle to Chiang Mai is Taipei City.

What are some popular things to do or see while on a layover in Seoul?

Dongdaemun Market, Bukchon Hanok Village, and Myeongdong Cathedral are the most popular attractions in Seoul if you're in need of something to do during your layover. Dongdaemun Market, Bukchon Hanok Village, and Myeongdong Cathedral can be visited by traveling about 31.6 mi, 30.6 mi, and 30.4 mi respectively from Incheon Intl. Those looking to explore during their layover in Seoul can rent a car from Incheon Intl for about $53 per day.

What is the cheapest day to fly round-trip from Seattle to Chiang Mai?

Thursday flights are found to be more expensive to fly from Seattle to Chiang Mai. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chiang Mai.

How far in advance should I book a flight from Seattle to Chiang Mai?

To save up to 20% on this flight, we recommend booking at least 42 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to Chiang Mai from $899 1-2 weeks out and tickets from $899 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of March. Prices to Chiang Mai from Seattle average $1,051. You can even find prices in March for less than $1,051, as users have found deals to Chiang Mai from as low as $698. The month of June appears to be one of the more expensive times to travel to Chiang Mai from Seattle. Flying in the targeted month can save you up to 71%.

Most accurate provider : When it comes to deals on Seattle-Chiang Mai flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Chiang Mai flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Chiang Mai flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Chiang Mai flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Seattle to Chiang Mai that include hotel bookings?

Yes. In addition to deals on Seattle to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Chiang Mai?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Chiang Mai.

Can I find deals for business class flights from Seattle to Chiang Mai?

Yes. Cheapflights offers flight deals from Seattle to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$446+ Flights from Seattle to Chiang Mai - Compare & Save Big

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Find cheap flights from Seattle to Chiang Mai with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Chiang Mai are usually found in March or October, booked 69 days in advance, depart on a Tuesday or Monday and return on a Saturday

Cheap flight deals from Seattle to Chiang Mai

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$945 (Asiana Airlines)
One-way from	$446 (Travelocity)
Popular in	June
Cheapest in	March
Average price	$865

Provider with most accurate pricing for Seattle/Tacoma Intl-Chiang Mai flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Chiang Mai flights.

Search Deals

From Seattle/Tacoma Intl to Chiang Mai

Search Deals

One-way flight from Seattle/Tacoma Intl to Chiang Mai

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($353 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($69 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Seattle to Chiang Mai

Cheapest flights from Seattle to Chiang Mai
Explore the most affordable flight options available from Seattle to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Mon 9/12:15 pmSEA - CNX

1 stop19h 25mAsiana Airlines

Mon 9/1512:45 amCNX - SEA

1 stop25h 45mAsiana Airlines

Deal found 4/29

$726

Tue 9/24:30 pmSEA - CNX

2 stops26h 50mMultiple Airlines

Mon 11/177:45 pmCNX - SEA

2 stops32h 35mMultiple Airlines

Deal found 4/28

$817

Sun 8/311:40 amSEA - CNX

1 stop18h 40mChina Airlines

Tue 9/1611:20 amCNX - SEA

1 stop22h 00mChina Airlines

Deal found 4/29

$821

Tue 9/212:50 pmSEA - CNX

1 stop19h 05mKorean Air

Sun 11/1612:15 amCNX - SEA

1 stop23h 45mKorean Air

Deal found 4/29

$837

Sun 8/311:15 amSEA - CNX

1 stop25h 05mSTARLUX Airlines

Thu 11/205:15 pmCNX - SEA

1 stop36h 50mSTARLUX Airlines

Deal found 4/29

$843

Mon 9/11:30 amSEA - CNX

1 stop18h 55mEVA Air

Mon 11/1711:50 amCNX - SEA

1 stop21h 20mEVA Air

Deal found 4/29

$858

Fri 9/512:45 pmSEA - CNX

1 stop19h 10mDelta

Tue 11/1812:15 amCNX - SEA

1 stop27h 50mDelta

Deal found 4/28

$918

Tue 9/210:15 amSEA - CNX

1 stop40h 25mSingapore Airlines

Mon 11/175:50 pmCNX - SEA

1 stop28h 20mSingapore Airlines

Deal found 4/29

$944

Mon 9/14:30 pmSEA - CNX

2 stops26h 50mQatar Airways

Sun 11/1612:10 pmCNX - SEA

2 stops38h 35mQatar Airways

Deal found 4/28

$1,004

Best flights from Seattle to Chiang Mai
Discover carefully curated flight deals from Seattle to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Mon 5/122:15 pmSEA - CNX

1 stop19h 25mAsiana Airlines

Sun 5/2512:45 amCNX - SEA

1 stop25h 45mAsiana Airlines

Deal found 4/29

$945

Sun 5/111:50 amSEA - CNX

1 stop18h 35mEVA Air

Mon 5/268:00 pmCNX - SEA

2 stops37h 30mEVA Air

Deal found 4/29

$996

Sun 6/110:15 amSEA - CNX

1 stop40h 25mSingapore Airlines

Mon 9/155:40 pmCNX - SEA

1 stop29h 05mSingapore Airlines

Deal found 4/29

$1,044

Sun 7/131:15 amSEA - CNX

1 stop25h 05mMultiple Airlines

Mon 7/2110:10 amCNX - SEA

2 stops20h 25mMultiple Airlines

Deal found 4/29

$1,085

Sun 6/12:55 pmSEA - CNX

2 stops35h 45mAir Canada

Mon 9/155:40 pmCNX - SEA

2 stops34h 36mAir Canada

Deal found 4/29

$1,334

Mon 7/144:59 pmSEA - CNX

2 stops38h 56mKorean Air

Mon 7/2111:15 pmCNX - SEA

1 stop28h 45mKorean Air

Deal found 4/29

$1,401

Sat 7/121:40 amSEA - CNX

2 stops27h 30mChina Airlines

Sat 7/1911:55 amCNX - SEA

2 stops21h 50mChina Airlines

Deal found 4/29

$1,436

Mon 7/1412:55 pmSEA - CNX

1 stop19h 00mDelta

Mon 7/2111:15 pmCNX - SEA

1 stop28h 45mDelta

Deal found 4/29

$1,444

Mon 7/144:30 pmSEA - CNX

2 stops28h 45mQatar Airways

Mon 7/218:00 pmCNX - SEA

2 stops30h 45mQatar Airways

Deal found 4/29

$1,552

Last-minute flights from Seattle to Chiang Mai
Discover last-minute flight deals from Seattle to Chiang Mai. Data last updated April 30, 2025 and is based on user searches.

Sun 5/111:50 amSEA - CNX

1 stop18h 35mEVA Air

Mon 5/268:00 pmCNX - SEA

2 stops37h 30mEVA Air

Deal found 4/29

$996

Mon 5/122:15 pmSEA - CNX

1 stop19h 25mAsiana Airlines

Sun 5/2512:45 amCNX - SEA

1 stop25h 45mAsiana Airlines

Deal found 4/29

$945

Mon 5/122:15 pmSEA - CNX

1 stop19h 25mMultiple Airlines

Mon 5/2610:10 amCNX - SEA

2 stops20h 00mMultiple Airlines

Deal found 4/29

$1,216

Mon 5/121:30 pmSEA - CNX

2 stops29h 50mJapan Airlines

Mon 5/268:00 pmCNX - SEA

3 stops32h 54mJapan Airlines

Deal found 4/29

$3,032

Sun 5/2510:15 amSEA - CNX

1 stop40h 25mSingapore Airlines

Thu 6/55:40 pmCNX - SEA

1 stop53h 05mSingapore Airlines

Deal found 4/28

$8,133

One-way flights from Seattle to Chiang Mai
Search for one-way flight options from Seattle to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Mon 9/224:30 pmSEA - CNX

2 stops31h 15mMultiple Airlines

Deal found 4/29

$446

Tue 9/212:50 pmSEA - CNX

1 stop19h 05mKorean Air

Deal found 4/29

$456

Sat 9/202:15 pmSEA - CNX

1 stop19h 25mAsiana Airlines

Deal found 4/29

$470

Mon 9/11:40 amSEA - CNX

1 stop18h 40mChina Airlines

Deal found 4/29

$472

Thu 9/181:15 amSEA - CNX

1 stop25h 05mSTARLUX Airlines

Deal found 4/29

$505

Mon 9/112:30 amSEA - CNX

2 stops28h 40mEVA Air

Deal found 4/29

$534

Thu 5/296:15 amSEA - CNX

2 stops41h 10mChina Eastern

Deal found 4/29

$586

Tue 9/28:37 amSEA - CNX

3 stops36h 38mJapan Airlines

Deal found 4/29

$947

Sun 6/1512:55 pmSEA - CNX

1 stop19h 00mDelta

Deal found 4/29

$953

Fri 5/3010:15 amSEA - CNX

1 stop64h 25mSingapore Airlines

Deal found 4/28

$3,870

Mon 7/215:50 pmSEA - CNX

3 stops34h 00mChina Southern

Deal found 4/28

$6,844

Cheapflights Fare Finder

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

Price

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Mon 5/12

2:15 pm-11:40 pm

1 stop19h 25m

Chiang Mai

Sun 5/25

12:45 am-12:30 pm

1 stop25h 45m

$945

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sun 5/11

1:50 am-10:25 am

1 stop18h 35m

Chiang Mai

Mon 5/26

8:00 pm-7:30 pm

2 stops37h 30m

$996

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sun 6/1

10:15 am-4:40 pm

1 stop40h 25m

Chiang Mai

Mon 9/15

5:40 pm-8:45 am

1 stop29h 05m

$1,044

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sun 7/13

1:15 am-4:20 pm

1 stop25h 05m

Chiang Mai

Mon 7/21

10:10 am-4:35 pm

2 stops20h 25m

$1,085

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sun 6/1

2:55 pm-4:40 pm

2 stops35h 45m

Chiang Mai

Mon 9/15

5:40 pm-2:16 pm

2 stops34h 36m

$1,334

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Mon 7/14

4:59 pm-9:55 pm

2 stops38h 56m

Chiang Mai

Mon 7/21

11:15 pm-2:00 pm

1 stop28h 45m

$1,401

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Sat 7/12

1:40 am-7:10 pm

2 stops27h 30m

Chiang Mai

Sat 7/19

11:55 am-7:45 pm

2 stops21h 50m

$1,436

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Mon 7/14

12:55 pm-9:55 pm

1 stop19h 00m

Chiang Mai

Mon 7/21

11:15 pm-2:00 pm

1 stop28h 45m

$1,444

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Mon 7/21

5:15 pm-1:45 pm

2 stops30h 30m

Chiang Mai

Mon 7/28

8:00 pm-1:25 pm

2 stops31h 25m

$1,499

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

Mon 7/14

4:30 pm-11:15 am

2 stops28h 45m

Chiang Mai

Mon 7/21

8:00 pm-12:45 pm

2 stops30h 45m

$1,552

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 21 results

Compare providers for flights from Seattle to Chiang Mai

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Chiang Mai in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Seattle-Chiang Mai flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Chiang Mai flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Chiang Mai flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seattle-Chiang Mai flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Seattle with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Chiang Mai

How far ahead should I book a flight from Seattle to Chiang Mai?

To ensure you get the cheapest price possible for a flight from Seattle to Chiang Mai, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Chiang Mai?

Currently, April is the cheapest month in which you can book a flight from Seattle to Chiang Mai (average of $1,011). Flying from Seattle to Chiang Mai in December is currently the most expensive (average of $1,678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to CNX?

It’s optimal to fly from Seattle to Chiang Mai in the morning. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Chiang Mai by month

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 9.8 inches per month. September is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 in.

Temperature in Chiang Mai by month

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

Reviews of airlines servicing Chiang Mai

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

STARLUX Airlines

9.1

Wonderful

161 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

EVA Air

8.4

Very good

1,186 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Korean Air

8.4

Very good

1,066 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Japan Airlines

8.3

Very good

1,459 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

China Airlines

8.3

Very good

732 reviews

STARLUX Airlines

9.1

Wonderful

161 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Related info for your journey

What are the cheapest airlines flying from Seattle to Chiang Mai round-trip?
According to our current data, Asiana Airlines ($945), EVA Air ($996), and Singapore Airlines ($1,044) offers the cheapest pricing from Seattle to Chiang Mai. Users have found that Asiana Airlines is 10% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Seattle to Chiang Mai one-way?
The cheapest airline one-way is Korean Air, with whom users have recently found tickets for as low as $456. However, be on the lookout for offers from Asiana Airlines and China Airlines, as they are both options that can get you from Seattle to Chiang Mai for a low price.
Where are the most common layover locations when flying from Seattle to Chiang Mai?
Most of the time, Seattle to Chiang Mai flights that have layovers will stop in Seoul.
What are some popular things to do or see while on a layover in Seoul?
Dongdaemun Market, Bukchon Hanok Village, and Myeongdong Cathedral are the most popular attractions in Seoul if you're in need of something to do during your layover. Dongdaemun Market, Bukchon Hanok Village, and Myeongdong Cathedral can be visited by traveling about 31.6 mi, 30.6 mi, and 30.4 mi respectively from Incheon Intl. Those looking to explore during their layover in Seoul can rent a car from Incheon Intl for about $53 per day.
Where are the least popular layover locations for Seattle to Chiang Mai flights?
The least popular layover on flights from Seattle to Chiang Mai is Taipei City.
Can I find deals for flights from Seattle to Chiang Mai that include hotel bookings?
Yes. In addition to deals on Seattle to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Chiang Mai?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Chiang Mai.
Can I find deals for business class flights from Seattle to Chiang Mai?
Yes. Cheapflights offers flight deals from Seattle to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to Chiang Mai?
Currently, April is the cheapest month in which you can book a flight from Seattle to Chiang Mai (average of $1,011). Flying from Seattle to Chiang Mai in December is currently the most expensive (average of $1,678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Seattle to Chiang Mai

Airline	Cheapest	Average	Flexibility	On-time
Asiana Airlines	Cheapest$676	Average$856	FlexibilityNo cancel fee	On-time76%
China Airlines	Cheapest$736	Average$823	FlexibilityNo cancel fee	On-time70%
Korean Air	Cheapest$840	Average$1,101	FlexibilityNo cancel fee	On-time81%
EVA Air	Cheapest$882	Average$1,053	FlexibilityNo cancel fee	On-time74%

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$446+ Cheap flights from Seattle (SEA) to Chiang Mai (CNX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Chiang Mai with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Chiang Mai are usually found in March or October, booked 69 days in advance, depart on a Tuesday or Monday and return on a Saturday

Cheap flight deals from Seattle to Chiang Mai

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to Chiang Mai

Cheapest flights from Seattle to Chiang MaiExplore the most affordable flight options available from Seattle to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from Seattle to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Chiang Mai that are best for you.

Compare providers for flights from Seattle to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Chiang Mai in April.

Best time to book a flight from Seattle to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Chiang Mai

How far ahead should I book a flight from Seattle to Chiang Mai?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Chiang Mai. Price data was last updated on April 25, 2025.

What is the cheapest month to book a flight from Seattle to Chiang Mai?

What is the cheapest time of day to fly from SEA to CNX?

Find hourly flight availability from Seattle to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

Rainfall in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average rainfall totals by month.

Temperature in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average temperature totals by month.

Reviews of airlines servicing Chiang Mai

Related info for your journey

Find useful and relevant information for your journey from Seattle to Chiang Mai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Seattle to Chiang Mai round-trip?

What are the cheapest airlines to fly from Seattle to Chiang Mai one-way?

Where are the most common layover locations when flying from Seattle to Chiang Mai?

What are some popular things to do or see while on a layover in Seoul?

Where are the least popular layover locations for Seattle to Chiang Mai flights?

Can I find deals for flights from Seattle to Chiang Mai that include hotel bookings?

How can I find direct flights from Seattle to Chiang Mai?

Can I find deals for business class flights from Seattle to Chiang Mai?

What is the cheapest month to book a flight from Seattle to Chiang Mai?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Seattle to Chiang Mai

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Travel Smart

Cheapest flights from Seattle to Chiang Mai
Explore the most affordable flight options available from Seattle to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.