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Chiang Mai

$542+ Cheap flights from Portland (PDX) to Chiang Mai (CNX)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNX
Jul 13 — Jul 201
Mon 7/13
Mon 7/20
1 adult, Economy
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Cheap flight deals from Portland to Chiang Mai

Cheapest flights from Portland to Chiang Mai
Explore the most affordable flight options available from Portland to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.

This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:03 am
PDX
-
CNX
2 stops26h 17m
Multiple Airlines
Fri 9/42:55 pm
CNX
-
PDX
2 stops43h 55m
Multiple Airlines
Deal found 6/9$998
This Justfly.com deal was found by Cheapflights users on 6/9. 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.
Tue 9/12:53 pm
PDX
-
CNX
2 stops56h 32m
Multiple Airlines
Sun 9/62:55 pm
CNX
-
PDX
2 stops47h 04m
Multiple Airlines
Deal found 6/9$1,012
This KAYAK deal was found by Cheapflights users on 6/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:55 pm
PDX
-
CNX
2 stops53h 30m
Multiple Airlines
Sun 9/62:55 pm
CNX
-
PDX
2 stops47h 04m
Multiple Airlines
Deal found 6/9$1,037
This Justfly.com deal was found by Cheapflights users on 6/9. 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.
Sun 8/308:18 pm
PDX
-
CNX
2 stops30h 02m
Multiple Airlines
Sat 9/55:20 pm
CNX
-
PDX
2 stops30h 05m
Multiple Airlines
Deal found 6/9$1,039
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:32 pm
PDX
-
CNX
2 stops28h 48m
Multiple Airlines
Sat 9/55:20 pm
CNX
-
PDX
2 stops30h 05m
Multiple Airlines
Deal found 6/9$1,047
This BusinessClass deal was found by Cheapflights users on 6/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:03 am
PDX
-
CNX
2 stops40h 22m
Multiple Airlines
Fri 9/42:55 pm
CNX
-
PDX
2 stops43h 55m
Multiple Airlines
Deal found 6/9$1,050
This BusinessClass deal was found by Cheapflights users on 6/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:03 am
PDX
-
CNX
2 stops40h 22m
Multiple Airlines
Fri 9/42:55 pm
CNX
-
PDX
2 stops43h 55m
Multiple Airlines
Deal found 6/9$1,054
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:03 am
PDX
-
CNX
2 stops40h 22m
Multiple Airlines
Sat 9/52:55 pm
CNX
-
PDX
2 stops47h 04m
Multiple Airlines
Deal found 6/12$1,079
This STARLUX Airlines deal was found by Cheapflights users on 6/11. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:41 pm
PDX
-
CNX
2 stops32h 39m
STARLUX Airlines
Sat 5/15:20 pm
CNX
-
PDX
2 stops43h 24m
STARLUX Airlines
Deal found 6/11$1,106

Find flight deals from Portland to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Chiang Mai (CNX). 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 June 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$998
(FlightHub)

One-way from

$542
(FlightHub)
Provider with most accurate pricing for Portland-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Chiang Mai flights.
Search Deals
From Portland to Chiang Mai
Search Deals
One-way flight from Portland to Chiang Mai
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Chiang Mai 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 June 13, 2026.
Use the filters below to find and compare flights from Portland to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

2:53 pm-1:25 pm

2 stops56h 32m

Chiang Mai

Sun 9/6

2:55 pm-11:59 pm

2 stops47h 04m

$1,037

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

5:55 pm-1:25 pm

2 stops53h 30m

Chiang Mai

Sat 9/5

2:55 pm-11:59 pm

2 stops47h 04m

$1,095

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 9/29

5:41 pm-4:20 pm

2 stops32h 39m

Chiang Mai

Sat 5/1

5:20 pm-9:13 pm

2 stops41h 53m

$1,106

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

5:41 pm-10:20 am

2 stops26h 39m

Chiang Mai

Sat 9/5

11:20 am-9:25 am

2 stops36h 05m

$1,173

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sat 7/11

10:10 am-10:00 pm

2 stops21h 50m

Chiang Mai

Sat 7/18

11:00 pm-9:31 am

2 stops48h 31m

$1,253

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 7/10

7:45 pm-10:00 pm

2 stops36h 15m

Chiang Mai

Fri 7/17

11:00 pm-9:31 am

2 stops48h 31m

$1,273
Quickest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sun 7/12

7:45 pm-4:35 pm

2 stops30h 50m

Chiang Mai

Wed 8/19

5:50 pm-9:31 am

2 stops29h 41m

$1,330

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sun 7/12

3:30 pm-8:45 am

3 stops51h 15m

Chiang Mai

Wed 8/19

11:30 am-9:31 am

2 stops36h 01m

$1,375
Cheapest one-way

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sun 10/11

5:00 pm-4:20 pm

2 stops33h 20m

$542

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 7/24

9:45 pm-11:20 pm

2 stops35h 35m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Portland to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Chiang Mai in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Portland 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 Portland to Chiang Mai. 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 Portland to Chiang Mai?

    A quick flight from Portland to Chiang Mai can take about 26h 39m. STARLUX Airlines provides one of the quickest options available for as low as $1,173. There are 7279 mi between Portland and Chiang Mai. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Yes. In addition to deals on Portland to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Chiang Mai.

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

    Yes. Cheapflights offers flight deals from Portland to Chiang Mai 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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