How long is the flight from Chiang Mai to Portland?

For as low as ฿31,479, Korean Air can have you in Portland from Chiang Mai in 30h 55m. Airlines will cover a distance of 11714 km.

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.

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).

What is the cheapest time of day to fly from CNX to PDX?

When flying from Chiang Mai to Portland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

฿19,321+ Cheap Flights from Chiang Mai to Portland

Cheap flight deals from Chiang Mai to Portland

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 18 September 2026.

Sun 1/1100:20 -

2 stops26h 29m

Mon 9/1117:29 -

2 stops38h 16m

Deal found 18/9฿27,815

Thu 5/1100:20 -

2 stops30h 55m

Tue 10/1117:29 -

2 stops38h 16m

Deal found 17/9฿31,479

Tue 15/917:20 -

2 stops42h 41m

Tue 22/921:32 -

2 stops28h 33m

Deal found 14/9฿35,443

Mon 2/1119:45 -

2 stops28h 41m

Mon 9/1112:31 -

3 stops30h 19m

Deal found 18/9฿43,138

Tue 15/909:25 -

3 stops26h 36m

Tue 22/917:53 -

3 stops30h 57m

Deal found 14/9฿49,201

Sun 1/1111:50 -

2 stops25h 05m

Tue 17/1115:55 -

2 stops27h 40m

Deal found 16/9฿166,957

Mon 2/1111:50 -

2 stops26h 04m

Mon 16/1117:30 -

2 stops26h 05m

Deal found 16/9฿167,223

Find flight deals from Chiang Mai to Portland

Round-trip from	฿31,479
One-way from	฿19,321

Korean Air
5/11-10/11
4 total stops
69h 11m total
Chiang Mai to Portland

Search Deals

6/12-31/12
2 total stops
43h 52m total
Chiang Mai to Portland

Search Deals

Cheapflights Fare Finder

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 Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sun 6/12

17:00-21:52

2 stops43h 52m

Portland

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿19,321

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sat 5/12

00:20-23:54

2 stops38h 34m

Portland

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿19,421

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Fri 30/10

00:20-22:42

2 stops36h 22m

Portland

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿19,487

Fastest return journey

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Thu 28/1

00:20-19:03

2 stops33h 43m

Portland

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿19,620

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Sat 31/10

20:50-11:11

3 stops52h 21m

Portland

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿19,854

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Fri 29/1

15:00-20:50

3 stops44h 50m

Portland

Wed 31/12

00:00-15:00

Nonstop0h 00m

฿21,752

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Thu 5/11

00:20-16:15

2 stops30h 55m

Portland

Tue 10/11

17:29-22:45

2 stops38h 16m

฿31,479

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Mon 2/11

21:45-14:41

3 stops31h 56m

Portland

Mon 9/11

12:31-09:50

3 stops30h 19m

฿44,604

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Tue 3/11

00:20-14:51

2 stops29h 31m

Portland

Sun 15/11

07:00-22:45

2 stops24h 45m

฿200,168

Chiang MaiPortland

CNX Chiang Mai - PDX Portland

CNXPDX

Chiang Mai

Tue 3/11

00:20-11:49

2 stops50h 29m

Portland

Sat 14/11

06:20-22:45

2 stops49h 25m

฿201,234

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 14 resultsSorted by cheapest first

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.

CNX-PDX

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

How long is the flight from Chiang Mai to Portland?
For as low as ฿31,479, Korean Air can have you in Portland from Chiang Mai in 30h 55m. 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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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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Cheap flights from Chiang Mai to Portland from ฿19,321

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Mai to Portland

Cheapest flights from Chiang Mai to PortlandExplore 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 18 September 2026.

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 18 September 2026.

Best flights from Chiang Mai to PortlandDiscover carefully curated flight deals from Chiang Mai to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Chiang Mai to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Chiang Mai to PortlandDiscover last-minute flight deals from Chiang Mai to Portland. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Portland. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Chiang Mai to PortlandSearch for one-way flight options from Chiang Mai to Portland. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from Chiang Mai to Portland. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

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Use the filters below to find and compare flights from Chiang Mai to Portland that are best for you.

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.

Related info for your journey

How long is the flight from Chiang Mai to Portland?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Portland by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Chiang Mai to Portland by cabin class

Find flights from Chiang Mai to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Chiang Mai and Portland flights

Browse other Chiang Mai and Portland flight options. Last updated on 18 September 2026.

Other flights from Chiang Mai

Browse through other flights departing from Chiang Mai. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

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How does Cheapflights help users find flights from Chiang Mai to Portland?

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

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

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

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Travel Smart

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 18 September 2026.

Best flights from Chiang Mai to Portland
Discover carefully curated flight deals from Chiang Mai to Portland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Chiang Mai to Portland
Discover last-minute flight deals from Chiang Mai to Portland. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Chiang Mai to Portland
Search for one-way flight options from Chiang Mai to Portland. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.