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$442+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — SEA
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$768
(oojo)

One-way from

$442
(Trip.com)

Popular in

January

Cheapest in

April

Average price

$825
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
Search Deals
One-way flight from Chiang Mai to Washington
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Highest demand for flights based on searches. 7% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 29, 2025.

This oojo deal was found by Cheapflights users on 10/27. 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.
Mon 11/105:35 pmCNX - SEA
1 stop15h 35mChina Airlines
Thu 12/412:10 amSEA - CNX
1 stop19h 15mChina Airlines
Deal found 10/27$813
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:45 pmCNX - SEA
2 stops37h 25mEVA Air
Thu 12/412:10 amSEA - CNX
1 stop19h 25mEVA Air
Deal found 10/27$822
This oojo deal was found by Cheapflights users on 10/27. 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.
Thu 11/2711:50 amCNX - PDX
2 stops33h 28mEVA Air
Thu 12/47:44 pmPDX - CNX
2 stops23h 51mEVA Air
Deal found 10/27$900
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:45 pmCNX - SEA
2 stops31h 46mMultiple Airlines
Fri 12/58:00 pmSEA - CNX
2 stops22h 25mMultiple Airlines
Deal found 10/27$908
This Gurufare deal was found by Cheapflights users on 10/27. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:50 amCNX - PDX
2 stops33h 28mMultiple Airlines
Thu 12/45:49 pmPDX - CNX
3 stops28h 31mMultiple Airlines
Deal found 10/27$988
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:15 amCNX - PDX
2 stops34h 01mDelta
Wed 12/312:32 amPDX - CNX
2 stops31h 23mDelta
Deal found 10/27$1,577

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 October 29, 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 2/3

11:50 am-6:10 pm

1 stop21h 20m

Seattle/Tacoma Intl

Tue 2/24

11:30 pm-10:35 am

1 stop20h 05m

$788

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 11/10

5:35 pm-6:10 pm

1 stop15h 35m

Seattle/Tacoma Intl

Thu 12/4

12:10 am-10:25 am

1 stop19h 15m

$813

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 2/26

11:50 am-5:30 pm

1 stop20h 40m

Seattle/Tacoma Intl

Thu 3/19

1:10 am-1:45 pm

2 stops22h 35m

$821

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 11/10

7:45 pm-6:10 pm

2 stops37h 25m

Seattle/Tacoma Intl

Thu 12/4

12:10 am-10:35 am

1 stop19h 25m

$822

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 2/24

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Tue 3/17

12:00 pm-10:55 pm

1 stop20h 55m

$845

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 2/25

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Sat 3/21

12:00 pm-10:55 pm

1 stop20h 55m

$845

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 2/24

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Fri 3/20

12:00 pm-10:55 pm

1 stop20h 55m

$845

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Tue 2/24

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Sun 3/22

12:00 pm-10:55 pm

1 stop20h 55m

$845

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 2/23

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Wed 3/18

12:00 pm-10:55 pm

1 stop20h 55m

$845

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 2/28

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Wed 3/18

12:00 pm-10:55 pm

1 stop20h 55m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 28 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 October 29, 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
1,155 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
1,155 reviews
Korean Air
8.4
Very good
1,155 reviews

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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, China Airlines, and Delta fly from Chiang Mai to State of Washington in about 15h 35m. The time it takes to get you to your destination can typically vary by up to 17h 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 $470 on China Airlines. Other airlines that offer cheap prices include Korean Air from $545 and Air Canada from $572 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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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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$802Average$832FlexibilityNo cancel feeOn-time81%

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