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Chiang Mai

$454+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CNX
gen 25 — feb 11
sab 1/25
sab 2/1
1 adult, Economy
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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

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Chiang Mai (CNX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated gennaio 20, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$659
(oojo)

One-way from

$454
(Flightnetwork)

Popular in

June

Cheapest in

March

Average price

$925
Provider with most accurate pricing for Seattle/Tacoma Intl-Chiang Mai flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Chiang Mai flights.
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From Seattle/Tacoma Intl to Chiang Mai
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One-way flight from Seattle/Tacoma Intl to Chiang Mai
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High demand for flights, 28% potential price rise
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Best time to find cheap flights, 6% potential price drop
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Average for round-trip flights in January 2025
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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 gennaio 20, 2025.

This oojo deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 3/212:45 pmSEA - CNX
1 stop19h 20mAsiana Airlines
lun 3/3112:45 amCNX - SEA
1 stop25h 45mAsiana Airlines
Deal found 1/19$659
This Trip.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 3/512:45 pmSEA - CNX
2 stops34h 15mMultiple Airlines
mer 3/126:15 pmCNX - SEA
2 stops31h 40mMultiple Airlines
Deal found 1/19$718
This Gurufare deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 3/35:59 pmSEA - CNX
2 stops53h 21mChina Eastern
lun 3/103:35 pmCNX - SEA
2 stops39h 20mChina Eastern
Deal found 1/19$746
This lol.travel deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 3/311:00 amSEA - CNX
1 stop36h 05mKorean Air
lun 3/103:20 pmCNX - SEA
1 stop32h 40mKorean Air
Deal found 1/19$817
This FlightHub deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sab 5/1010:15 amSEA - CNX
1 stop40h 50mSingapore Airlines
lun 5/196:05 pmCNX - SEA
1 stop28h 40mSingapore Airlines
Deal found 1/19$878
This oojo deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 3/191:10 amSEA - CNX
1 stop19h 25mEVA Air
gio 4/311:35 amCNX - SEA
1 stop21h 55mEVA Air
Deal found 1/19$882
This FlightHub deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 11/912:10 amSEA - CNX
1 stop19h 15mChina Airlines
mar 11/2511:25 amCNX - SEA
1 stop21h 50mChina Airlines
Deal found 1/19$898

Find flights from Seattle to Chiang Mai within your budget

Customize your flight search to find flights from Seattle to Chiang Mai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated gennaio 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

dom 3/2

12:45 pm-11:05 pm

1 stop19h 20m

Chiang Mai

lun 3/31

12:45 am-12:30 pm

1 stop25h 45m

$659

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

mer 3/5

12:45 pm-2:00 pm

2 stops34h 15m

Chiang Mai

mer 3/12

6:15 pm-11:55 am

2 stops31h 40m

$718

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

lun 3/3

5:59 pm-2:20 pm

2 stops53h 21m

Chiang Mai

lun 3/10

3:35 pm-4:55 pm

2 stops39h 20m

$746

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

lun 3/3

11:00 am-2:05 pm

1 stop36h 05m

Chiang Mai

lun 3/10

3:20 pm-10:00 am

1 stop32h 40m

$817

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

sab 5/10

10:15 am-5:05 pm

1 stop40h 50m

Chiang Mai

lun 5/19

6:05 pm-8:45 am

1 stop28h 40m

$878

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

mer 3/19

1:10 am-10:35 am

1 stop19h 25m

Chiang Mai

gio 4/3

11:35 am-7:30 pm

1 stop21h 55m

$882

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

gio 3/6

12:10 am-10:25 am

1 stop19h 15m

Chiang Mai

sab 3/22

11:25 am-7:15 pm

1 stop21h 50m

$912

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

gio 3/6

3:45 pm-9:20 am

2 stops26h 35m

$454

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

gio 3/6

11:00 am-2:05 pm

1 stop36h 05m

$488

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

mer 3/5

12:10 am-10:35 am

1 stop19h 25m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 12 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 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.

Travel insights for flights from Seattle to Chiang Mai

Get recent, data-driven insights about flights from Seattle to Chiang Mai including ideal travel times, pricing trends, and more.

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 January 17, 2025.

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, September is the cheapest month in which you can book a flight from Seattle to Chiang Mai (average of $1,041). 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?

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 gennaio 20, 2025.

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

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

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

Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated gennaio 20, 2025.
Peruse reviews from past customers who have flown with EVA Air, Asiana Airlines and Korean Air from Seattle to Chiang Mai to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Korean Air
8.5
Very good
1,039 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

EVA Air
8.4
Very good
1,255 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Asiana Airlines
8.3
Very good
466 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

China Airlines
8.2
Very good
737 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

China Eastern
7.0
Good
134 reviews
Korean Air
8.5
Very good
1,039 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.5

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

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?

    According to our current data, Asiana Airlines ($659), China Eastern ($746), and Korean Air ($817) offers the cheapest pricing from Seattle to Chiang Mai. Users have found that Asiana Airlines is 40% cheaper than the other options available to this destination.

  • 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 Incheon.

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

    G Tower, Wolmido Amusement Park, and Moraenae Market are the most popular attractions in Incheon if you're in need of something to do during your layover. G Tower, Wolmido Amusement Park, and Moraenae Market can be visited by traveling about 10.7 mi, 8.3 mi, and 14.7 mi respectively from Incheon Intl. Those looking to explore during their layover in Incheon can rent a car from Incheon Intl for about $52 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, September is the cheapest month in which you can book a flight from Seattle to Chiang Mai (average of $1,041). 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

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Top 5 airlines flying from Seattle to Chiang Mai

Discover the top 5 airlines that operate flights from Seattle to Chiang Mai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated gennaio 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$683Average$850FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$749Average$833FlexibilityNo cancel feeOn-time70%
DeltaCheapest$822Average$1,332FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$908Average$1,161FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$943Average$1,242FlexibilityNo cancel feeOn-time81%
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