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Cheap flights from Chiang Mai to Portland from ฿17,201

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — PDX
16 Jun — 23 Jun1
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 11 June 2025.

Round-trip from

฿35,642

One-way from

฿17,201
Korean Air
  • Korean Air
  • 23/7-29/8
  • 4 total stops
  • 80h 22m total
  • Chiang Mai to Portland
Search Deals
18/8
  • 18/8
  • 3 total stops
  • 49h 27m 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 11 June 2025.

Wed 23/723:15CNX - PDX
2 stops54h 41mKorean Air
Fri 29/806:14PDX - CNX
2 stops25h 41mKorean Air
Deal found 9/6฿35,642
Tue 22/717:20CNX - PDX
2 stops43h 36mSTARLUX Airlines
Thu 28/820:37PDX - CNX
2 stops29h 43mSTARLUX Airlines
Deal found 9/6฿37,600
Mon 28/717:40CNX - PDX
2 stops53h 50mแอร์แคนาดา
Sun 31/806:15PDX - CNX
2 stops44h 25mแอร์แคนาดา
Deal found 9/6฿38,123
Fri 25/711:35CNX - PDX
2 stops32h 45mEVA Air
Sat 30/814:30PDX - CNX
2 stops29h 55mEVA Air
Deal found 9/6฿38,547
Thu 24/711:35CNX - PDX
2 stops26h 24mMultiple Airlines
Fri 29/820:37PDX - CNX
2 stops23h 48mMultiple Airlines
Deal found 9/6฿42,823
Mon 28/723:15CNX - PDX
2 stops38h 03mเดลต้า
Sat 30/817:45PDX - CNX
2 stops38h 10mเดลต้า
Deal found 9/6฿46,935
Tue 22/700:45CNX - PDX
2 stops33h 52mAsiana Airlines
Sat 30/819:35PDX - CNX
2 stops38h 05mAsiana Airlines
Deal found 9/6฿48,698
Fri 25/720:00CNX - PDX
3 stops38h 08mQatar Airways
Sat 30/810:30PDX - CNX
3 stops32h 50mQatar Airways
Deal found 9/6฿69,423

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 11 June 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 23/7

23:15-15:56

2 stops54h 41m

Portland

Fri 29/8

06:14-21:55

2 stops25h 41m

฿35,642

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 22/7

17:20-22:56

2 stops43h 36m

Portland

Thu 28/8

20:37-16:20

2 stops29h 43m

฿37,600

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 28/7

17:40-09:30

2 stops53h 50m

Portland

Sun 31/8

06:15-16:40

2 stops44h 25m

฿38,123

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Fri 25/7

11:35-06:20

2 stops32h 45m

Portland

Sat 30/8

14:30-10:25

2 stops29h 55m

฿38,547

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 24/7

11:35-23:59

2 stops26h 24m

Portland

Fri 29/8

20:37-10:25

2 stops23h 48m

฿42,823

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 28/7

23:15-23:18

2 stops38h 03m

Portland

Sat 30/8

17:45-21:55

2 stops38h 10m

฿46,935

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 22/7

00:45-20:37

2 stops33h 52m

Portland

Wed 27/8

19:35-23:40

2 stops38h 05m

฿48,698

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Fri 25/7

20:00-20:08

3 stops38h 08m

Portland

Sat 30/8

10:30-09:20

3 stops32h 50m

฿69,423

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 18/8

22:20-09:47

3 stops49h 27m

฿17,201

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Tue 8/7

23:15-15:56

2 stops30h 41m

฿19,681

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 14 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to Portland

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland ranges from 18.0 - 142.0 inches per month. November is typically the wettest month, when rainfall can reach 142.0 mm. July is typically the driest time to visit Portland when rainfall is around 18.0 mm.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 11 June 2025.
STARLUX Airlines
9.1
Wonderful
Check prices

Food

8.8

Overall

9.1

Comfort

9.0

Crew

9.3

Entertainment

8.9

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
STARLUX Airlines
9.1
Wonderful
Check prices

Food

8.8

Overall

9.1

Comfort

9.0

Crew

9.3

Entertainment

8.9

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very Good
1,202 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

8.8

Overall

9.1

Comfort

9.0

Crew

9.3

Entertainment

8.9

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very Good
1,088 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

8.8

Overall

9.1

Comfort

9.0

Crew

9.3

Entertainment

8.9

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Asiana Airlines
8.2
Very Good
443 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

8.8

Overall

9.1

Comfort

9.0

Crew

9.3

Entertainment

8.9

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
เดลต้า
8.0
Very Good
7,945 reviews
STARLUX Airlines
9.1
Wonderful
Check prices

Food

8.8

Overall

9.1

Comfort

9.0

Crew

9.3

Entertainment

8.9

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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 Korean Air. According to our data, you can fly for as low as ฿19,681. Users have also found prices from ฿23,468 and ฿24,316 on แอร์แคนาดา and เดลต้า, 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 Chiang Mai?

Book flights to Chiang Mai if you plan to visit one of these locations
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Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Portland?

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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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