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$492+ Cheap flights from Chiang Mai (CNX) to Washington

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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap 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 January 28, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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.
Sat 3/1411:50 am
CNX
-
SEA
1 stop21h 20m
EVA Air
Sat 3/2111:50 pm
SEA
-
CNX
1 stop20h 45m
EVA Air
Deal found 1/27$786
This China Airlines deal was found by Cheapflights users on 1/26. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:20 am
CNX
-
SEA
1 stop21h 55m
China Airlines
Sun 9/271:15 am
SEA
-
CNX
1 stop19h 05m
China Airlines
Deal found 1/26$800
This EVA Air deal was found by Cheapflights users on 1/27. 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 EVA Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:35 am
CNX
-
SEA
1 stop21h 45m
EVA Air
Fri 10/161:30 am
SEA
-
CNX
1 stop18h 55m
EVA Air
Deal found 1/27$816
This SmartFares deal was found by Cheapflights users on 1/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/1411:50 am
CNX
-
SEA
1 stop21h 20m
Multiple Airlines
Sat 3/218:10 pm
SEA
-
CNX
2 stops24h 25m
Multiple Airlines
Deal found 1/27$846
This SmartFares deal was found by Cheapflights users on 1/25. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:35 am
CNX
-
SEA
2 stops35h 17m
Multiple Airlines
Sat 9/191:30 am
SEA
-
CNX
1 stop18h 55m
Multiple Airlines
Deal found 1/25$857
This China Airlines deal was found by Cheapflights users on 1/25. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:20 am
CNX
-
SEA
1 stop22h 30m
China Airlines
Sat 9/191:10 am
SEA
-
CNX
1 stop19h 10m
China Airlines
Deal found 1/25$881
This China Airlines deal was found by Cheapflights users on 1/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:20 am
CNX
-
SEA
1 stop22h 25m
China Airlines
Sat 8/221:55 am
SEA
-
CNX
1 stop18h 25m
China Airlines
Deal found 1/28$884
This oojo deal was found by Cheapflights users on 1/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:35 am
CNX
-
SEA
2 stops24h 28m
EVA Air
Sat 8/221:10 am
SEA
-
CNX
1 stop19h 15m
EVA Air
Deal found 1/26$885
This EaseMyTrip deal was found by Cheapflights users on 1/26. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:35 am
CNX
-
SEA
1 stop21h 45m
Multiple Airlines
Sat 10/173:44 pm
SEA
-
CNX
2 stops28h 41m
Multiple Airlines
Deal found 1/26$888
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1711:50 am
CNX
-
PDX
2 stops22h 44m
Multiple Airlines
Tue 3/318:46 pm
PDX
-
CNX
2 stops23h 39m
Multiple Airlines
Deal found 1/28$940
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1711:50 am
CNX
-
PDX
2 stops22h 44m
Multiple Airlines
Thu 4/29:30 pm
PDX
-
CNX
2 stops22h 55m
Multiple Airlines
Deal found 1/28$970
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:50 am
CNX
-
PDX
2 stops22h 42m
Multiple Airlines
Tue 3/318:46 pm
PDX
-
CNX
2 stops23h 39m
Multiple Airlines
Deal found 1/28$1,041

Find 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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$786
(oojo)

One-way from

$492
(Kiwi.com)

Popular in

September

Cheapest in

April
Provider with most accurate pricing for Chiang Mai-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chiang Mai-Seattle/Tacoma Intl flights.
Search Deals
From Chiang Mai to Washington
Search Deals
One-way flight from Chiang Mai to Washington
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals

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 January 28, 2026.
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

Sat 3/14

11:50 am-7:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Sat 3/21

11:50 pm-10:35 am

1 stop20h 45m

$786

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 3/14

11:50 am-7:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Sat 3/21

8:10 pm-10:35 am

2 stops24h 25m

$846

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 7/1

8:00 pm-7:50 pm

2 stops37h 50m

Seattle/Tacoma Intl

Tue 8/11

2:10 am-10:25 am

1 stop18h 15m

$892

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 2/28

12:15 am-1:20 pm

1 stop28h 05m

Seattle/Tacoma Intl

Mon 3/16

12:35 pm-10:55 pm

1 stop20h 20m

$898

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 3/1

9:25 am-1:55 pm

2 stops19h 30m

Seattle/Tacoma Intl

Sun 3/15

12:10 am-9:55 pm

2 stops31h 45m

$913

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 7/23

11:20 am-7:45 pm

1 stop22h 25m

Seattle/Tacoma Intl

Tue 9/22

1:15 am-10:20 am

1 stop19h 05m

$938

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 3/17

11:50 am-8:34 pm

2 stops22h 44m

Portland

Thu 4/2

9:30 pm-10:25 am

2 stops22h 55m

$970

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 3/19

11:50 am-11:54 pm

2 stops26h 04m

Portland

Thu 4/2

9:30 pm-10:25 am

2 stops22h 55m

$970

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 3/18

11:50 am-4:30 pm

2 stops42h 40m

Portland

Wed 4/1

10:48 am-10:25 am

2 stops33h 37m

$1,224

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 3/17

4:55 pm-9:38 pm

2 stops42h 43m

Portland

Sun 3/29

5:45 pm-4:20 pm

2 stops32h 35m

$1,230

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 40 results
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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

How much does it cost to fly round-trip from Chiang Mai to State of Washington?

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 January 28, 2026.
Read reviews from past customers who have flown Korean Air from Chiang Mai to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,188 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Food

8.1

Boarding

8.5

Crew

8.7

Entertainment

8.2

Comfort

8.3

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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.

  • How long is the flight from Chiang Mai to State of Washington?

    Airlines like EVA Air, Delta, and STARLUX Airlines fly from Chiang Mai to State of Washington in about 21h 20m. The time it takes to get you to your destination can typically vary by up to 21h 23m. Airlines will cover a distance of 7190 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $482 on China Airlines. Other airlines that offer cheap prices include Korean Air from $516 and STARLUX Airlines from $518 one-way.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Chiang Mai to Washington

Discover the top airline 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$803Average$832FlexibilityNo cancel feeOn-time81%

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