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Cheap flights from Chiang Mai to Portland from ฿16,418

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — PDX
4 Mar — 11 Mar1
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 February 2026.

Wed 18/311:25
CNX
-
PDX
2 stops40h 12m
Multiple Airlines
Wed 1/415:10
PDX
-
CNX
2 stops29h 10m
Multiple Airlines
Deal found 2/2฿37,617
Wed 18/311:50
CNX
-
PDX
2 stops42h 40m
EVA Air
Wed 1/410:48
PDX
-
CNX
2 stops33h 37m
EVA Air
Deal found 1/2฿38,341
Wed 18/319:45
CNX
-
PDX
3 stops38h 54m
Qatar Airways
Wed 1/413:35
PDX
-
CNX
3 stops31h 40m
Qatar Airways
Deal found 1/2฿59,257
Wed 23/914:55
CNX
-
PDX
2 stops39h 15m
China Eastern
Sun 27/906:30
PDX
-
CNX
2 stops40h 55m
China Eastern
Deal found 1/2฿73,851

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 February 2026.

Round-trip from

฿37,617

One-way from

฿16,418
18/3-1/4
  • 18/3-1/4
  • 4 total stops
  • 69h 22m total
  • Chiang Mai to Portland
Search Deals
แอร์แคนาดา
  • แอร์แคนาดา
  • 7/2
  • 2 total stops
  • 36h 10m 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 February 2026.
Use the filters below to find and compare flights from Chiang Mai to Portland that are best for you.

Fly from

Chiang Mai

Fly to

Portland

Route

Depart

Return

Price

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 18/3

11:25-13:37

2 stops40h 12m

Portland

Wed 1/4

15:10-10:20

2 stops29h 10m

฿37,617

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 18/3

11:50-16:30

2 stops42h 40m

Portland

Wed 1/4

10:48-10:25

2 stops33h 37m

฿38,341

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 18/3

19:45-20:39

3 stops38h 54m

Portland

Wed 1/4

13:35-11:15

3 stops31h 40m

฿59,257

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 7/2

12:05-09:15

2 stops36h 10m

฿16,418

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 17/3

00:15-23:59

2 stops37h 44m

฿17,739

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 23/3

18:15-21:38

3 stops41h 23m

฿18,966

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 23/3

00:15-16:43

2 stops30h 28m

฿19,501

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 24/3

22:50-08:10

3 stops47h 20m

฿20,350

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 7/2

22:25-00:09

3 stops40h 44m

฿20,507

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 25/3

08:35-08:10

3 stops37h 35m

฿20,790

Flights are sorted by cheapest return flights first.

Deals found on 31/1

Showing 1-10 of 13 results
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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 ฿59,257, EVA Air can have you in Portland from Chiang Mai in 38h 54m. Airlines will cover a distance of 11714 km. This flight may include one or multiple stops.

  • 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

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Wilsonville

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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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