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Cheap flights from Chiang Mai to Portland from ฿18,641

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — PDX
1 Jun — 8 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Mai to Portland
Explore the most affordable flight options available from Chiang Mai to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 May 2026.

Wed 13/511:35
CNX
-
PDX
2 stops35h 54m
Multiple Airlines
Thu 21/514:51
PDX
-
CNX
2 stops29h 34m
Multiple Airlines
Deal found 30/4฿36,666
Wed 13/511:35
CNX
-
PDX
2 stops36h 12m
EVA Air
Thu 21/514:51
PDX
-
CNX
2 stops29h 34m
EVA Air
Deal found 27/4฿37,705
Mon 20/711:35
CNX
-
PDX
2 stops36h 11m
Multiple Airlines
Tue 21/717:30
PDX
-
CNX
2 stops26h 55m
Multiple Airlines
Deal found 29/4฿40,076
Sat 13/611:20
CNX
-
PDX
2 stops26h 32m
Multiple Airlines
Sat 20/621:30
PDX
-
CNX
2 stops22h 50m
Multiple Airlines
Deal found 29/4฿42,804
Tue 20/1021:45
CNX
-
PDX
2 stops38h 41m
Korean Air
Sat 24/1011:10
PDX
-
CNX
2 stops45h 45m
Korean Air
Deal found 29/4฿45,954

Find flight deals from Chiang Mai to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 2 May 2026.

Round-trip from

฿36,666

One-way from

฿18,641
13/5-21/5
  • 13/5-21/5
  • 4 total stops
  • 65h 28m total
  • Chiang Mai to Portland
Search Deals
23/5
  • 23/5
  • 2 total stops
  • 36h 27m total
  • Chiang Mai to Portland
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to Portland 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 17,341 searches. Data last updated 2 May 2026.
Use the filters below to find and compare flights from Chiang Mai to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 13/5

11:35-09:29

2 stops35h 54m

Portland

Thu 21/5

14:51-10:25

2 stops29h 34m

฿36,666

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 13/5

11:35-09:47

2 stops36h 12m

Portland

Thu 21/5

14:51-10:25

2 stops29h 34m

฿37,705

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 20/7

11:35-09:46

2 stops36h 11m

Portland

Tue 21/7

17:30-10:25

2 stops26h 55m

฿40,076
Fastest return journey

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 13/6

11:20-23:52

2 stops26h 32m

Portland

Sat 20/6

21:30-10:20

2 stops22h 50m

฿42,804

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 20/10

21:45-22:26

2 stops38h 41m

Portland

Sat 24/10

11:10-22:55

2 stops45h 45m

฿45,954
Cheapest one-way

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 23/5

11:20-09:47

2 stops36h 27m

฿18,641

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Fri 22/5

22:20-20:50

3 stops36h 30m

฿22,116
Fastest single journey

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 21/5

17:20-11:50

2 stops32h 30m

฿22,798

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sun 24/5

07:00-11:50

3 stops42h 50m

฿23,968

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 20/5

11:20-09:24

2 stops36h 04m

฿25,689

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 11 resultsSorted by cheapest first
1
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Best time to book a flight from Chiang Mai to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Chiang Mai with our price prediction graph.
Estimated return 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.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chiang Mai to Portland?

    For as low as ฿37,705, EVA Air can have you in Portland from Chiang Mai in 36h 12m. Airlines will cover a distance of 11714 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chiang Mai to Portland 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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How does Cheapflights help users find flights from Chiang Mai to Portland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Chiang Mai to Portland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Portland?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Portland from Chiang Mai.

Can Cheapflights find flights from Chiang Mai to Portland with no change fees?

Need flexible booking options for your flight to Portland from Chiang Mai? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to Portland become cheaper?

Yes, Cheapflights offers price alerts on Chiang Mai to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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