$455+ Cheap flights from Portland (PDX) to Chiang Mai (CNX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNX
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Chiang Mai with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Chiang Mai
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to Chiang MaiExplore 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 November 4, 2026.
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 November 4, 2026.
This Justfly.com deal was found by Cheapflights users on 10/30. 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.
Mon 11/306:00 am -
2 stops41h 20m
Mon 12/73:35 pm -
2 stops46h 55m
Deal found 10/30![Multiple Airlines logo]()
$1,093
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Thu 12/36:30 pm -
2 stops30h 30m
Wed 12/165:15 pm -
2 stops31h 18m
Deal found 11/1![Multiple Airlines logo]()
$1,257
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Fri 12/44:03 pm -
2 stops32h 57m
Sun 12/205:15 pm -
2 stops42h 39m
Deal found 11/2![STARLUX Airlines logo]()
$1,349
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Fri 12/45:32 pm -
2 stops31h 28m
Sun 12/205:15 pm -
2 stops44h 44m
Deal found 11/1![Multiple Airlines logo]()
$1,353
Best flights from Portland to Chiang MaiDiscover carefully curated flight deals from Portland to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Portland to Chiang Mai that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This Korean Air deal was found by Cheapflights users on 10/30. 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.
Tue 2/167:27 pm -
2 stops36h 18m
Mon 2/2212:20 am -
2 stops31h 48m
Deal found 10/30![Korean Air logo]()
$968
This FlightHub deal was found by Cheapflights users on 10/31. 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 3/235:40 pm -
2 stops32h 20m
Tue 3/305:20 pm -
2 stops37h 07m
Deal found 10/31![Multiple Airlines logo]()
$1,168
This STARLUX Airlines deal was found by Cheapflights users on 11/3. 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.
Sun 3/77:40 pm -
2 stops29h 20m
Thu 3/115:15 pm -
2 stops41h 28m
Deal found 11/3![STARLUX Airlines logo]()
$1,222
This Qatar Airways deal was found by Cheapflights users on 10/31. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2012:55 pm -
3 stops31h 25m
Sat 3/67:45 pm -
3 stops37h 48m
Deal found 10/31![Qatar Airways logo]()
$1,341
This Korean Air deal was found by Cheapflights users on 10/31. 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.
Sun 1/247:38 pm -
2 stops36h 07m
Sun 2/712:20 am -
2 stops33h 15m
Deal found 10/31![Korean Air logo]()
$968
This Korean Air deal was found by Cheapflights users on 10/31. 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.
Mon 2/227:00 am -
2 stops24h 45m
Wed 2/2412:20 am -
2 stops30h 10m
Deal found 10/31![Korean Air logo]()
$968
This STARLUX Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 2/227:40 pm -
2 stops29h 20m
Thu 2/255:15 pm -
2 stops42h 58m
Deal found 11/2![STARLUX Airlines logo]()
$1,272
This Korean Air deal was found by Cheapflights users on 10/31. 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.
Sat 2/207:00 am -
2 stops24h 45m
Fri 3/512:20 am -
2 stops30h 10m
Deal found 10/31![Korean Air logo]()
$1,080
Last-minute flights from Portland to Chiang MaiDiscover last-minute flight deals from Portland to Chiang Mai. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Chiang Mai. Data last updated November 4, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 10/30. 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.
Mon 11/306:00 am -
2 stops41h 20m
Mon 12/73:35 pm -
2 stops46h 55m
Deal found 10/30![Multiple Airlines logo]()
$1,093
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Thu 12/36:30 pm -
2 stops30h 30m
Wed 12/165:15 pm -
2 stops31h 18m
Deal found 11/1![Multiple Airlines logo]()
$1,257
This FlightHub deal was found by Cheapflights users on 11/2. 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.
Fri 12/44:03 pm -
2 stops32h 57m
Sun 12/205:15 pm -
2 stops42h 39m
Deal found 11/2![STARLUX Airlines logo]()
$1,349
This FlightHub deal was found by Cheapflights users on 11/1. 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.
Fri 12/45:32 pm -
2 stops31h 28m
Sun 12/205:15 pm -
2 stops44h 44m
Deal found 11/1![Multiple Airlines logo]()
$1,353
One-way flights from Portland to Chiang MaiSearch for one-way flight options from Portland to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Portland to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/207:00 am -
3 stops57h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$455
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2210:59 am -
3 stops53h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2310:59 am -
3 stops54h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$463
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2010:59 am -
3 stops55h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$473
This Expedia deal was found by Cheapflights users on 10/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/157:27 pm -
2 stops36h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Korean Air logo]()
$529
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/155:30 pm -
3 stops38h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$544
This Korean Air deal was found by Cheapflights users on 11/1. 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.
Wed 1/274:38 pm -
2 stops39h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Korean Air logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/146:01 pm -
3 stops54h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/132:34 pm -
3 stops40h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/216:10 pm -
3 stops35h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Multiple Airlines logo]()
$572
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 November 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $968 (Korean Air) |
One-way from | $455 (Kiwi.com) |
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 7,457,451 searches. Data last updated November 4, 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
Cheapest round-trip
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Wed 1/27
4:38 pm-10:45 pm
2 stops39h 07m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$545
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Thu 1/21
4:38 pm-10:45 pm
2 stops39h 07m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$545
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Sun 1/17
5:48 pm-10:45 pm
2 stops37h 57m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$545
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Thu 11/12
1:35 pm-4:00 pm
2 stops35h 25m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$587
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Wed 1/27
2:30 pm-4:00 pm
2 stops34h 30m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$587
Quickest round-trip
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Fri 1/22
5:40 am-10:45 pm
2 stops26h 05m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$593
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Mon 12/7
7:51 pm-7:55 pm
3 stops57h 04m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$608
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Wed 12/2
7:00 am-8:45 am
3 stops34h 45m
Chiang Mai
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$761
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Tue 2/16
7:27 pm-10:45 pm
2 stops36h 18m
Chiang Mai
Mon 2/22
12:20 am-5:08 pm
2 stops31h 48m
$968
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Sun 1/24
7:38 pm-10:45 pm
2 stops36h 07m
Chiang Mai
Sun 2/7
12:20 am-6:35 pm
2 stops33h 15m
$968
Showing 1-10 of 16 resultsSorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
PDX-CNX
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.
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