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$786+ Cheap flights from Chiang Mai (CNX) to Washington

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Chiang Mai to Washington

Keep the following information in mind while searching for Chiang Mai to Washington flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$786
(StudentUniverse)

Popular in

August

Cheapest in

November

Average price

$878
Provider with most accurate pricing for Chiang Mai-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Chiang Mai-Seattle/Tacoma Intl flights.
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From Chiang Mai to Washington
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Highest demand for flights based on searches. 13% potential increase in price ($157 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Chiang Mai to Washington

Cheapest flights from Chiang Mai to Washington
Explore the most affordable flight options available from Chiang Mai to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This StudentUniverse deal was found by Cheapflights users on 3/26. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2011:15 pmCNX - SEA
1 stop25h 25mKorean Air
Wed 7/91:20 pmSEA - CNX
1 stop18h 35mKorean Air
Deal found 3/26$786
This oojo deal was found by Cheapflights users on 3/27. 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.
Sun 5/1111:35 amCNX - SEA
1 stop21h 55mEVA Air
Sat 5/171:50 amSEA - CNX
1 stop18h 35mEVA Air
Deal found 3/27$817
This oojo deal was found by Cheapflights users on 3/28. 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.
Tue 5/1311:20 amCNX - SEA
1 stop22h 10mChina Airlines
Mon 6/21:10 amSEA - CNX
1 stop19h 10mChina Airlines
Deal found 3/28$819
This FlightHub deal was found by Cheapflights users on 3/26. 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.
Wed 5/1412:45 amCNX - SEA
1 stop25h 45mAsiana Airlines
Fri 7/112:30 pmSEA - CNX
1 stop19h 10mAsiana Airlines
Deal found 3/26$856
This KAYAK deal was found by Cheapflights users on 3/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2011:20 amCNX - SEA
1 stop22h 10mMultiple Airlines
Wed 7/98:26 pmSEA - CNX
2 stops23h 54mMultiple Airlines
Deal found 3/26$910
This Delta deal was found by Cheapflights users on 3/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1311:15 pmCNX - SEA
1 stop28h 20mDelta
Sun 7/136:15 amSEA - CNX
2 stops25h 40mDelta
Deal found 3/26$928
This Justfly.com deal was found by Cheapflights users on 3/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/125:20 pmCNX - SEA
1 stop36h 50mSTARLUX Airlines
Sun 6/11:15 amSEA - CNX
1 stop25h 05mSTARLUX Airlines
Deal found 3/28$936
This Lufthansa deal was found by Cheapflights users on 3/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/204:55 pmCNX - SEA
2 stops38h 04mLufthansa
Wed 6/46:50 pmSEA - CNX
2 stops34h 20mLufthansa
Deal found 3/28$1,139
This Air Canada deal was found by Cheapflights users on 3/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/175:40 pmCNX - SEA
2 stops53h 38mAir Canada
Sun 7/62:55 pmSEA - CNX
2 stops35h 45mAir Canada
Deal found 3/26$1,158

Cheapflights Fare Finder

Customize your flight search to find flights from Chiang Mai to Washington 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 March 28, 2025.
Use the filters below to find and compare flights from Chiang Mai to Washington that are best for you.

Fly from

Chiang Mai

Fly to

Washington

Route

Depart

Return

Price

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/20

11:15 pm-10:40 am

1 stop25h 25m

Seattle/Tacoma Intl

Wed 7/9

1:20 pm-9:55 pm

1 stop18h 35m

$786

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 5/11

11:35 am-7:30 pm

1 stop21h 55m

Seattle/Tacoma Intl

Sat 5/17

1:50 am-10:25 am

1 stop18h 35m

$817

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/13

11:20 am-7:30 pm

1 stop22h 10m

Seattle/Tacoma Intl

Mon 6/2

1:10 am-10:20 am

1 stop19h 10m

$819

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/14

12:45 am-12:30 pm

1 stop25h 45m

Seattle/Tacoma Intl

Fri 7/11

2:30 pm-11:40 pm

1 stop19h 10m

$856

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/20

11:20 am-7:30 pm

1 stop22h 10m

Seattle/Tacoma Intl

Wed 7/9

8:26 pm-10:20 am

2 stops23h 54m

$910

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/13

11:15 pm-1:35 pm

1 stop28h 20m

Seattle/Tacoma Intl

Sun 7/13

6:15 am-9:55 pm

2 stops25h 40m

$928

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 5/12

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Sun 6/1

1:15 am-4:20 pm

1 stop25h 05m

$936

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 5/20

4:55 pm-4:59 pm

2 stops38h 04m

Seattle/Tacoma Intl

Wed 6/4

6:50 pm-7:10 pm

2 stops34h 20m

$1,139

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 5/17

5:40 pm-9:18 am

2 stops53h 38m

Seattle/Tacoma Intl

Sun 7/6

2:55 pm-4:40 pm

2 stops35h 45m

$1,158

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Best time to book a flight from Chiang Mai to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from Chiang Mai to State of Washington (average of $238). Flying from Chiang Mai to State of Washington in July is currently the most expensive (average of $411). 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.

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated March 28, 2025.
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Boarding

9.0

Overall

9.1

Food

8.9

Comfort

9.0

Entertainment

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

Crew

9.3

Boarding

9.0

Overall

9.1

Food

8.9

Comfort

9.0

Entertainment

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
1,169 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Boarding

9.0

Overall

9.1

Food

8.9

Comfort

9.0

Entertainment

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
1,050 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Boarding

9.0

Overall

9.1

Food

8.9

Comfort

9.0

Entertainment

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
722 reviews
STARLUX Airlines
9.1
Wonderful
146 reviews

Crew

9.3

Boarding

9.0

Overall

9.1

Food

8.9

Comfort

9.0

Entertainment

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

Crew

9.3

Boarding

9.0

Overall

9.1

Food

8.9

Comfort

9.0

Entertainment

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 Chiang Mai to Washington. 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 from for flights from Chiang Mai to Washington?

    If you book a flight to Washington from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chiang Mai to State of Washington (average of $238). Flying from Chiang Mai to State of Washington in July is currently the most expensive (average of $411). 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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Alternative routes for Chiang Mai to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Chiang Mai to Washington

Discover the top 3 airlines that operate flights from Chiang Mai to Washington. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Asiana AirlinesCheapest$622Average$783FlexibilityNo cancel feeOn-time76%
EVA AirCheapest$788Average$1,089FlexibilityNo cancel feeOn-time74%
Korean AirCheapest$802Average$915FlexibilityNo cancel feeOn-time81%
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