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Chiang Mai

$443+ Cheap flights from Washington 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CNX
abr. 6 — abr. 131
dom. 4/6
dom. 4/13
1 adult, Economy
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Cheap flight deals from Washington to Chiang Mai

Keep the following information in mind while searching for Washington to Chiang Mai flight deals. Data was last updated abril 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$796
(oojo)

One-way from

$459
(Ovago)

Popular in

June

Cheapest in

March

Average price

$865
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 Washington to Chiang Mai
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One-way flight from Washington to Chiang Mai
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Highest demand for flights based on searches. 24% potential increase in price ($348 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($70 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Washington to Chiang Mai

Cheapest flights from Washington to Chiang Mai
Explore the most affordable flight options available from Washington to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 1, 2025.

This FlightHub deal was found by Cheapflights users on 4/1. 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. 8/311:40 amSEA - CNX
1 stop18h 40mChina Airlines
mar. 9/1611:20 amCNX - SEA
1 stop22h 00mChina Airlines
Deal found 4/1$783
This oojo deal was found by Cheapflights users on 4/1. 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.
lun. 9/12:15 pmSEA - CNX
1 stop19h 25mAsiana Airlines
lun. 9/1512:45 amCNX - SEA
1 stop25h 45mAsiana Airlines
Deal found 4/1$832
This CheapOair deal was found by Cheapflights users on 3/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/14:30 pmSEA - CNX
2 stops26h 15mMultiple Airlines
mar. 9/168:00 pmCNX - SEA
2 stops32h 25mMultiple Airlines
Deal found 3/31$843
This oojo deal was found by Cheapflights users on 3/31. 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. 8/312:10 amSEA - CNX
1 stop18h 15mEVA Air
jue. 11/2011:50 amCNX - SEA
1 stop21h 20mEVA Air
Deal found 3/31$859
This STARLUX Airlines deal was found by Cheapflights users on 3/31. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/291:15 amSEA - CNX
1 stop25h 05mSTARLUX Airlines
mié. 5/75:20 pmCNX - SEA
1 stop36h 50mSTARLUX Airlines
Deal found 3/31$877
This Gurufare deal was found by Cheapflights users on 3/31. 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.
vie. 9/2610:15 amSEA - CNX
1 stop40h 25mSingapore Airlines
dom. 10/125:40 pmCNX - SEA
1 stop53h 05mSingapore Airlines
Deal found 3/31$919
This CrystalTravel deal was found by Cheapflights users on 3/31. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1511:00 amSEA - CNX
1 stop21h 05mKorean Air
vie. 11/2812:15 amCNX - SEA
1 stop23h 45mKorean Air
Deal found 3/31$927
This Gurufare deal was found by Cheapflights users on 3/31. 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.
jue. 5/18:45 pmPDX - CNX
2 stops29h 35mSTARLUX Airlines
dom. 5/115:20 pmCNX - PDX
2 stops43h 03mSTARLUX Airlines
Deal found 3/31$963
This FlightHub deal was found by Cheapflights users on 4/1. 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.
lun. 5/124:30 pmSEA - CNX
2 stops31h 15mQatar Airways
lun. 5/2611:55 amCNX - SEA
2 stops38h 50mQatar Airways
Deal found 4/1$1,008
This Fareboom deal was found by Cheapflights users on 3/31. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/305:30 pmPDX - CNX
2 stops27h 05mMultiple Airlines
dom. 11/911:50 amCNX - PDX
2 stops45h 48mMultiple Airlines
Deal found 3/31$1,012
This Fareboom deal was found by Cheapflights users on 3/31. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/14:45 pmPDX - CNX
2 stops27h 35mChina Airlines
vie. 9/1211:20 amCNX - PDX
2 stops36h 05mChina Airlines
Deal found 3/31$1,047
This Fareboom deal was found by Cheapflights users on 3/31. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/48:45 pmPDX - CNX
2 stops23h 40mEVA Air
lun. 10/1311:35 amCNX - PDX
2 stops32h 43mEVA Air
Deal found 3/31$1,057

Cheapflights Fare Finder

Customize your flight search to find flights from Washington 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 abril 1, 2025.
Use the filters below to find and compare flights from Washington to Chiang Mai that are best for you.

Fly from

Washington

Fly to

Chiang Mai

Route

Depart

Return

Price

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

dom. 8/31

1:40 am-10:20 am

1 stop18h 40m

Chiang Mai

mar. 9/16

11:20 am-7:20 pm

1 stop22h 00m

$783

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

lun. 9/1

2:15 pm-11:40 pm

1 stop19h 25m

Chiang Mai

lun. 9/15

12:45 am-12:30 pm

1 stop25h 45m

$832

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

lun. 9/1

4:30 pm-8:45 am

2 stops26h 15m

Chiang Mai

mar. 9/16

8:00 pm-2:25 pm

2 stops32h 25m

$843

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

dom. 8/31

2:10 am-10:25 am

1 stop18h 15m

Chiang Mai

jue. 11/20

11:50 am-6:10 pm

1 stop21h 20m

$859

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

mar. 4/29

1:15 am-4:20 pm

1 stop25h 05m

Chiang Mai

mié. 5/7

5:20 pm-4:10 pm

1 stop36h 50m

$877

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

vie. 9/26

10:15 am-4:40 pm

1 stop40h 25m

Chiang Mai

dom. 10/12

5:40 pm-8:45 am

1 stop53h 05m

$919

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

jue. 5/1

8:45 pm-4:20 pm

2 stops29h 35m

Chiang Mai

dom. 5/11

5:20 pm-10:23 pm

2 stops43h 03m

$963

SeattleChiang Mai

SEA - CNX

SEACNX

Seattle/Tacoma Intl

lun. 5/12

4:30 pm-1:45 pm

2 stops31h 15m

Chiang Mai

lun. 5/26

11:55 am-12:45 pm

2 stops38h 50m

$1,008

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

lun. 9/1

7:00 am-11:40 pm

2 stops26h 40m

Chiang Mai

jue. 9/11

12:45 am-6:22 pm

2 stops31h 37m

$1,014

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

lun. 9/1

4:45 pm-10:20 am

2 stops27h 35m

Chiang Mai

vie. 9/12

11:20 am-9:25 am

2 stops36h 05m

$1,047

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 31 results
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Best time to book a flight from Washington to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Washington 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 Washington to Chiang Mai

What is the cheapest month to book a flight from State of Washington to Chiang Mai?

Currently, April is the cheapest month in which you can book a flight from State of Washington to Chiang Mai (average of $1,016). Flying from State of Washington 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 WA to CNX?

Find hourly flight availability from Washington 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 abril 1, 2025.

When flying from State of Washington to Chiang Mai, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 abril 1, 2025.
To help decide which airline to fly from Washington to Chiang Mai, see what other customers have to say about STARLUX Airlines, EVA Air and Korean Air. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Comfort

9.0

Crew

9.3

Overall

9.1

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
STARLUX Airlines
9.1
Wonderful
146 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Comfort

9.0

Crew

9.3

Overall

9.1

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
EVA Air
8.4
Very good
1,170 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Comfort

9.0

Crew

9.3

Overall

9.1

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Korean Air
8.4
Very good
1,052 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Comfort

9.0

Crew

9.3

Overall

9.1

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
China Airlines
8.2
Very good
723 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Comfort

9.0

Crew

9.3

Overall

9.1

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.
Asiana Airlines
8.2
Very good
440 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Food

8.9

Entertainment

9.0

Comfort

9.0

Crew

9.3

Overall

9.1

Boarding

9.0

Reviews

1 / 5
10.0
Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 airport do you fly into for flights to Chiang Mai from Washington?

    Chiang Mai (CNX), located 1.9 mi from the city center, is the airport you fly into when you book flights from Washington to Chiang Mai.

  • What are the cheapest airlines to fly from State of Washington to Chiang Mai one-way?

    One-way options have recently been found by users for as low as $459 on China Airlines. Other airlines that offer cheap prices include STARLUX Airlines from $480 and Qatar Airways from $519 one-way.

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

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

  • How can I find direct flights from Washington to Chiang Mai?

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Chiang Mai?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Chiang Mai (average of $1,016). Flying from State of Washington 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

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Alternative routes for Washington to Chiang Mai

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Top 4 airlines flying from Washington to Chiang Mai

Discover the top 4 airlines that operate flights from Washington 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 abril 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$679Average$859FlexibilityNo cancel feeOn-time76%
China AirlinesCheapest$749Average$834FlexibilityNo cancel feeOn-time70%
EVA AirCheapest$891Average$1,138FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$967Average$1,242FlexibilityNo cancel feeOn-time81%

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