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$481+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This FlightHub deal was found by Cheapflights users on 12/15. 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 12/249:40 pmCNX - SEA
2 stops34h 50mEVA Air
Tue 12/3011:30 pmSEA - CNX
1 stop20h 05mEVA Air
Deal found 12/15$835
This Expedia deal was found by Cheapflights users on 12/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:10 amCNX - SEA
2 stops23h 00mEVA Air
Thu 1/111:30 pmSEA - CNX
1 stop20h 05mEVA Air
Deal found 12/14$888
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:10 amCNX - SEA
2 stops23h 00mEVA Air
Thu 1/111:30 pmSEA - CNX
1 stop20h 05mEVA Air
Deal found 12/14$918
This STARLUX Airlines deal was found by Cheapflights users on 12/14. 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.
Tue 12/234:55 pmCNX - SEA
1 stop37h 10mSTARLUX Airlines
Tue 12/3011:45 pmSEA - CNX
1 stop25h 10mSTARLUX Airlines
Deal found 12/14$937
This EVA Air deal was found by Cheapflights users on 12/14. 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 12/1910:10 amCNX - SEA
2 stops23h 00mEVA Air
Sat 1/311:30 pmSEA - CNX
2 stops30h 30mEVA Air
Deal found 12/14$950
This EVA Air deal was found by Cheapflights users on 12/14. 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.
Sun 12/2110:10 amCNX - SEA
2 stops47h 00mEVA Air
Tue 12/3012:10 amSEA - CNX
2 stops42h 15mEVA Air
Deal found 12/14$954
This EVA Air deal was found by Cheapflights users on 12/14. 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.
Sun 12/2110:10 amCNX - SEA
2 stops47h 00mEVA Air
Sun 12/2812:10 amSEA - CNX
2 stops53h 50mEVA Air
Deal found 12/14$958
This Trip.com deal was found by Cheapflights users on 12/14. 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.
Mon 12/225:35 pmCNX - SEA
1 stop15h 35mMultiple Airlines
Thu 1/111:30 pmSEA - CNX
1 stop20h 05mMultiple Airlines
Deal found 12/14$972
This Delta deal was found by Cheapflights users on 12/14. 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 12/2312:15 amCNX - SEA
1 stop28h 05mDelta
Wed 12/317:13 amSEA - CNX
2 stops24h 42mDelta
Deal found 12/14$977
This Delta deal was found by Cheapflights users on 12/14. 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.
Mon 12/2212:15 amCNX - SEA
2 stops35h 35mDelta
Tue 12/3010:15 pmSEA - CNX
2 stops33h 40mDelta
Deal found 12/14$982

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$777
(FlightHub)

One-way from

$481
(China Airlines)
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

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 December 15, 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 4/28

11:20 am-7:30 pm

1 stop22h 10m

Seattle/Tacoma Intl

Mon 6/8

1:10 am-10:20 am

1 stop19h 10m

$801

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sun 5/3

11:20 am-7:30 pm

1 stop22h 10m

Seattle/Tacoma Intl

Mon 6/8

1:10 am-10:20 am

1 stop19h 10m

$801

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 5/2

11:20 am-7:30 pm

1 stop22h 10m

Seattle/Tacoma Intl

Mon 6/8

1:10 am-10:20 am

1 stop19h 10m

$801

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/26

11:50 am-7:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Wed 4/29

1:30 am-10:25 am

1 stop18h 55m

$808

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 5/1

8:00 pm-6:50 pm

2 stops36h 50m

Seattle/Tacoma Intl

Mon 6/8

1:50 am-10:25 am

1 stop18h 35m

$838

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 3/26

11:25 am-7:10 pm

1 stop21h 45m

Seattle/Tacoma Intl

Thu 4/30

8:00 pm-10:20 am

2 stops24h 20m

$891

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 3/18

12:15 am-4:56 pm

2 stops30h 41m

Portland

Mon 3/23

7:58 pm-10:55 pm

2 stops36h 57m

$895

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 4/4

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Tue 6/16

1:15 am-4:20 pm

1 stop25h 05m

$905

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 4/2

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Tue 6/16

1:15 am-4:20 pm

1 stop25h 05m

$905

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 4/2

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Thu 6/18

1:15 am-4:20 pm

1 stop25h 05m

$905

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 30 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
No data available for this route at this time. Please check back soon.

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 December 15, 2025.
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
1,186 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

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
1,186 reviews
Korean Air
8.4
Very good
1,186 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

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 China Airlines, EVA Air, and Korean Air 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 9h 21m. 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 $491 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

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Alternative routes for Chiang Mai to Washington

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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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$803Average$832FlexibilityNo cancel feeOn-time81%

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