$541+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNX
Sep 26 — Oct 31
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
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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 August 27, 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 August 27, 2026.
This KAYAK deal was found by Cheapflights users on 8/22. 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.
Mon 11/27:04 am -
2 stops40h 16m
Tue 11/173:35 pm -
2 stops46h 43m
Deal found 8/22![Multiple Airlines logo]()
$903
This Justfly.com deal was found by Cheapflights users on 8/25. 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 11/186:47 am -
2 stops40h 33m
Wed 12/93:35 pm -
2 stops45h 58m
Deal found 8/25![Multiple Airlines logo]()
$913
This Justfly.com deal was found by Cheapflights users on 8/25. 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 11/172:48 pm -
2 stops56h 32m
Wed 12/93:35 pm -
2 stops44h 13m
Deal found 8/25![Multiple Airlines logo]()
$923
This KAYAK deal was found by Cheapflights users on 8/25. 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.
Mon 11/167:04 am -
2 stops40h 16m
Wed 12/93:35 pm -
2 stops40h 15m
Deal found 8/25![Multiple Airlines logo]()
$943
This KAYAK deal was found by Cheapflights users on 8/25. 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.
Wed 11/186:47 am -
2 stops40h 33m
Tue 12/83:35 pm -
2 stops47h 19m
Deal found 8/25![Multiple Airlines logo]()
$944
This SmartFares deal was found by Cheapflights users on 8/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:32 pm -
2 stops57h 18m
Sun 11/1511:05 pm -
2 stops49h 26m
Deal found 8/24![Multiple Airlines logo]()
$948
This KAYAK deal was found by Cheapflights users on 8/25. 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.
Tue 11/176:04 pm -
2 stops53h 16m
Tue 12/83:35 pm -
2 stops47h 19m
Deal found 8/25![Multiple Airlines logo]()
$959
This KAYAK deal was found by Cheapflights users on 8/23. 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.
Sat 11/77:04 am -
2 stops40h 16m
Sat 11/143:35 pm -
2 stops46h 43m
Deal found 8/23![Multiple Airlines logo]()
$965
This KAYAK deal was found by Cheapflights users on 8/25. 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.
Mon 11/167:04 am -
2 stops40h 16m
Mon 12/73:35 pm -
2 stops47h 19m
Deal found 8/25![Multiple Airlines logo]()
$971
This Justfly.com deal was found by Cheapflights users on 8/26. 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 11/306:20 am -
2 stops41h 00m
Mon 12/73:35 pm -
2 stops39h 50m
Deal found 8/26![China Eastern logo]()
$1,011
This oojo deal was found by Cheapflights users on 8/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:53 pm -
2 stops57h 27m
Mon 11/303:35 pm -
2 stops39h 52m
Deal found 8/24![Multiple Airlines logo]()
$1,016
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 August 27, 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 August 27, 2026.
This SmartFares deal was found by Cheapflights users on 8/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:32 pm -
2 stops57h 18m
Sun 11/1511:05 pm -
2 stops49h 26m
Deal found 8/24![Multiple Airlines logo]()
$948
This Korean Air deal was found by Cheapflights users on 8/21. 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.
Fri 2/56:40 am -
2 stops25h 15m
Sat 2/2012:15 am -
2 stops34h 13m
Deal found 8/21![Korean Air logo]()
$1,060
This Qatar Airways deal was found by Cheapflights users on 8/21. 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.
Fri 2/58:30 am -
3 stops33h 55m
Sun 2/217:45 pm -
3 stops35h 52m
Deal found 8/21![Qatar Airways logo]()
$1,397
This STARLUX Airlines deal was found by Cheapflights users on 8/25. 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 9/139:32 pm -
2 stops28h 33m
Thu 9/175:20 pm -
2 stops42h 41m
Deal found 8/25![STARLUX Airlines logo]()
$1,426
This oojo deal was found by Cheapflights users on 8/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:53 pm -
2 stops57h 27m
Mon 11/303:35 pm -
2 stops39h 52m
Deal found 8/24![Multiple Airlines logo]()
$1,016
This Korean Air deal was found by Cheapflights users on 8/25. 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 11/176:20 am -
2 stops25h 35m
Wed 12/912:15 am -
2 stops32h 04m
Deal found 8/25![Korean Air logo]()
$1,080
This Korean Air deal was found by Cheapflights users on 8/25. 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 11/165:29 pm -
2 stops38h 26m
Wed 12/912:15 am -
2 stops28h 20m
Deal found 8/25![Korean Air logo]()
$1,080
This Mytrip deal was found by Cheapflights users on 8/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:48 pm -
2 stops40h 02m
Tue 11/179:10 pm -
3 stops36h 21m
Deal found 8/22![Multiple Airlines logo]()
$1,191
This Korean Air deal was found by Cheapflights users on 8/25. 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 11/176:20 am -
2 stops25h 35m
Fri 12/412:15 am -
2 stops31h 12m
Deal found 8/25![Korean Air logo]()
$1,111
This STARLUX Airlines deal was found by Cheapflights users on 8/25. 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.
Fri 11/207:36 pm -
2 stops29h 24m
Sun 12/65:00 pm -
2 stops44h 44m
Deal found 8/25![STARLUX Airlines logo]()
$1,616
Last-minute flights from Portland to Chiang MaiDiscover last-minute flight deals from Portland to Chiang Mai. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Chiang Mai. Data last updated August 27, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:53 pm -
2 stops25h 27m
Sat 9/511:20 am -
2 stops36h 36m
Deal found 8/26![China Airlines logo]()
$1,112
This FlightHub deal was found by Cheapflights users on 8/24. 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 8/315:53 pm -
2 stops26h 32m
Sat 9/511:35 am -
2 stops36h 21m
Deal found 8/24![Multiple Airlines logo]()
$1,124
This Qatar Airways deal was found by Cheapflights users on 8/22. 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.
Mon 8/3111:48 am -
3 stops33h 27m
Sat 9/58:00 pm -
3 stops37h 53m
Deal found 8/22![Qatar Airways logo]()
$1,656
This FlightHub deal was found by Cheapflights users on 8/25. 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 9/132:42 pm -
2 stops29h 43m
Sun 9/2011:35 am -
2 stops40h 15m
Deal found 8/25![Multiple Airlines logo]()
$1,087
This STARLUX Airlines deal was found by Cheapflights users on 8/25. 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 9/139:32 pm -
2 stops28h 33m
Thu 9/175:20 pm -
2 stops42h 41m
Deal found 8/25![STARLUX Airlines logo]()
$1,426
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 August 27, 2026.
Search for one-way flight options from Portland to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 11/137:04 am -
3 stops57h 31m
Deal found 8/23![Multiple Airlines logo]()
$541
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 9/216:50 pm -
3 stops35h 35m
Deal found 8/23![Multiple Airlines logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 11/125:53 pm -
3 stops34h 02m
Deal found 8/23![Multiple Airlines logo]()
$553
This Korean Air deal was found by Cheapflights users on 8/25. 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 1/276:40 am -
2 stops25h 15m
Deal found 8/25![Korean Air logo]()
$558
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Tue 9/226:50 pm -
3 stops29h 00m
Deal found 8/23![Multiple Airlines logo]()
$572
This Korean Air deal was found by Cheapflights users on 8/23. 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.
Fri 11/136:20 am -
2 stops25h 35m
Deal found 8/23![Korean Air logo]()
$585
This FlightHub deal was found by Cheapflights users on 8/26. 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.
Wed 1/277:00 am -
3 stops36h 35m
Deal found 8/26![Multiple Airlines logo]()
$677
This Qatar Airways deal was found by Cheapflights users on 8/21. 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.
Fri 2/59:31 am -
3 stops32h 54m
Deal found 8/21![Qatar Airways logo]()
$751
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 August 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $903 (KAYAK) |
One-way from | $541 (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 August 27, 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
Fri 11/6
9:32 pm-9:50 pm
2 stops57h 18m
Chiang Mai
Sun 11/15
11:05 pm-9:31 am
2 stops49h 26m
$948
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Wed 10/28
2:53 pm-2:20 pm
2 stops57h 27m
Chiang Mai
Mon 11/30
3:35 pm-4:27 pm
2 stops39h 52m
$1,016
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Fri 2/5
6:40 am-10:55 pm
2 stops25h 15m
Chiang Mai
Sat 2/20
12:15 am-7:28 pm
2 stops34h 13m
$1,060
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Tue 11/17
6:20 am-10:55 pm
2 stops25h 35m
Chiang Mai
Wed 12/9
12:15 am-5:19 pm
2 stops32h 04m
$1,080
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Mon 11/16
5:29 pm-10:55 pm
2 stops38h 26m
Chiang Mai
Wed 12/9
12:15 am-1:35 pm
2 stops28h 20m
$1,080
Quickest round-trip
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Tue 11/17
6:20 am-10:55 pm
2 stops25h 35m
Chiang Mai
Fri 12/4
12:15 am-4:27 pm
2 stops31h 12m
$1,111
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Mon 11/2
2:48 pm-9:50 pm
2 stops40h 02m
Chiang Mai
Tue 11/17
9:10 pm-6:31 pm
3 stops36h 21m
$1,191
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Fri 2/5
8:30 am-9:25 am
3 stops33h 55m
Chiang Mai
Sun 2/21
7:45 pm-4:37 pm
3 stops35h 52m
$1,397
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Sun 9/13
9:32 pm-4:05 pm
2 stops28h 33m
Chiang Mai
Thu 9/17
5:20 pm-10:01 pm
2 stops42h 41m
$1,426
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Fri 11/20
7:36 pm-4:00 pm
2 stops29h 24m
Chiang Mai
Sun 12/6
5:00 pm-10:44 pm
2 stops44h 44m
$1,616
Showing 1-10 of 15 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 August.
| 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 |
- 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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