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Cheap flights from Chiang Mai to Portland from ฿18,635

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — PDX
21 Apr — 28 Apr1
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 22 March 2026.

Tue 15/921:10
CNX
-
PDX
2 stops26h 21m
แอร์แคนาดา
Sat 19/915:30
PDX
-
CNX
2 stops29h 45m
แอร์แคนาดา
Deal found 19/3฿38,880
Thu 17/921:10
CNX
-
PDX
2 stops26h 21m
แอร์แคนาดา
Mon 21/919:45
PDX
-
CNX
2 stops25h 30m
แอร์แคนาดา
Deal found 17/3฿39,308

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 22 March 2026.

Round-trip from

฿38,880

One-way from

฿18,635
แอร์แคนาดา
  • แอร์แคนาดา
  • 15/9-19/9
  • 4 total stops
  • 56h 06m total
  • Chiang Mai to Portland
Search Deals
24/8
  • 24/8
  • 3 total stops
  • 30h 01m 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 22 March 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

Tue 15/9

21:10-09:31

2 stops26h 21m

Portland

Sat 19/9

15:30-11:15

2 stops29h 45m

฿38,880
Fastest return journey

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 17/9

21:10-09:31

2 stops26h 21m

Portland

Mon 21/9

19:45-11:15

2 stops25h 30m

฿39,308
Cheapest one-way

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 24/8

21:25-13:26

3 stops30h 01m

฿18,635

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Fri 1/5

11:20-09:30

2 stops36h 10m

฿20,640

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 6/5

17:40-14:48

3 stops35h 08m

฿21,034

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 7/5

11:20-09:30

2 stops36h 10m

฿21,166

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 5/5

13:30-16:22

3 stops40h 52m

฿21,692

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 4/5

07:00-09:30

3 stops40h 30m

฿22,546

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 30/4

19:25-13:45

3 stops56h 20m

฿23,631

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sun 3/5

14:55-15:38

2 stops38h 43m

฿40,031

Flights are sorted by cheapest return flights first.

Deals found on 19/3

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 ฿38,880, แอร์แคนาดา can have you in Portland from Chiang Mai in 26h 21m. 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

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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