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$621+ Cheap flights from Chiang Mai (CNX) to Portland (PDX)

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — PDX
Jun 6 — Jun 131
Sat 6/6
Sat 6/13
1 adult, Economy
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Cheap 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 May 7, 2026.

This Justfly.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:35 am
CNX
-
PDX
2 stops34h 27m
Multiple Airlines
Thu 5/212:51 pm
PDX
-
CNX
2 stops29h 34m
Multiple Airlines
Deal found 5/7$1,101
This Korean Air deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:45 pm
CNX
-
PDX
2 stops29h 33m
Korean Air
Mon 10/266:00 am
PDX
-
CNX
2 stops26h 55m
Korean Air
Deal found 5/5$1,421

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 May 7, 2026.

Round-trip from

$1,421
(Korean Air)

One-way from

$621
(SmartFares)
From Chiang Mai to Portland
Search Deals
One-way flight from Chiang Mai to Portland
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated May 7, 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 round-trip
Quickest round-trip

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 10/22

9:45 pm-1:18 pm

2 stops29h 33m

Portland

Mon 10/26

6:00 am-10:55 pm

2 stops26h 55m

$1,421
Cheapest one-way
Quickest one-way

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 6/4

5:20 pm-9:47 am

2 stops30h 27m

$621

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 5/23

5:20 pm-9:47 am

2 stops30h 27m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/2

Sorted 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.
Estimated round-trip 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 $1,421, Korean Air can have you in Portland from Chiang Mai in 29h 33m. There are 7279 mi between Chiang Mai and Portland.

  • 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 vacation 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Beaverton
Seaside
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Pacific City

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Alternative routes for Chiang Mai to Portland

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Suvarnabhumi to Portland flights

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