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Cheap flights from Chiang Mai to Portland from ฿18,282

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — PDX
2 Aug — 9 Aug1
1 adult

Cheap 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 28 July 2025.

Round-trip from

฿31,928

One-way from

฿23,273
EVA Air
  • EVA Air
  • 8/10-27/10
  • 4 total stops
  • 59h 50m total
  • Chiang Mai to Portland
Search Deals
เดลต้า
  • เดลต้า
  • 4/8
  • 2 total stops
  • 49h 20m total
  • Chiang Mai to Portland
Search Deals

Find flight deals from Chiang Mai to Portland

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 28 July 2025.

Wed 8/1011:35CNX - PDX
2 stops26h 43mEVA Air
Mon 27/1015:30PDX - CNX
2 stops29h 05mEVA Air
Deal found 27/7฿31,928
Wed 8/1011:35CNX - PDX
2 stops25h 10mMultiple Airlines
Mon 27/1019:31PDX - CNX
2 stops25h 04mMultiple Airlines
Deal found 27/7฿32,284
Wed 8/1020:00CNX - PDX
3 stops38h 30mQatar Airways
Mon 27/1010:30PDX - CNX
3 stops32h 55mQatar Airways
Deal found 27/7฿55,396

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 28 July 2025.
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 8/10

11:35-00:18

2 stops26h 43m

Portland

Mon 27/10

15:30-10:35

2 stops29h 05m

฿31,928

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 8/10

11:35-22:45

2 stops25h 10m

Portland

Mon 27/10

19:31-10:35

2 stops25h 04m

฿32,284

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 8/10

20:00-20:30

3 stops38h 30m

Portland

Mon 27/10

10:30-09:25

3 stops32h 55m

฿55,396

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 4/12

00:15-13:19

2 stops28h 04m

฿18,282

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Fri 5/12

17:20-18:30

3 stops40h 10m

฿18,541

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 4/8

23:15-10:35

2 stops49h 20m

฿23,273

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 2/8

17:40-23:01

2 stops43h 21m

฿29,302

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 9/8

11:35-09:23

2 stops35h 48m

฿29,367

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 2/8

00:45-12:32

2 stops49h 47m

฿63,305

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sun 3/8

20:00-21:13

3 stops39h 13m

฿63,434

Flights are sorted by cheapest return flights first.

Deals found on 28/7

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.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated 28 July 2025.
See what other customers who have flown with EVA Air, Asiana Airlines, andเดลต้า from Chiang Mai to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,221 reviews
Check prices

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,221 reviews
EVA Air
8.4
Very Good
1,221 reviews
Check prices

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Asiana Airlines
8.2
Very Good
463 reviews
EVA Air
8.4
Very Good
1,221 reviews
Check prices

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
เดลต้า
8.0
Very Good
7,971 reviews
EVA Air
8.4
Very Good
1,221 reviews
Check prices

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Qatar Airways
7.4
Good
3,609 reviews
EVA Air
8.4
Very Good
1,221 reviews
Check prices

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
แอร์แคนาดา
7.1
Good
9,813 reviews
EVA Air
8.4
Very Good
1,221 reviews
Check prices

Overall

8.4

Boarding

8.4

Comfort

8.3

Entertainment

8.0

Food

8.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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.

  • What are the cheapest airlines to fly from Chiang Mai to Portland one-way?

    For one-way options, check prices for เดลต้า. According to our data, you can fly for as low as ฿23,273. Users have also found prices from ฿29,302 and ฿29,367 on แอร์แคนาดา and EVA Air, respectively.

  • 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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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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