$551+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNX
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Chiang Mai with Cheapflights
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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
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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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Best
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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 August 10, 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 10, 2026.
This KAYAK deal was found by Cheapflights users on 8/8. 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 11/27:01 am -
2 stops40h 19m
Tue 11/103:35 pm -
2 stops46h 35m
Deal found 8/8![Multiple Airlines logo]()
$924
This Ovago deal was found by Cheapflights users on 8/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:53 pm -
2 stops52h 32m
Thu 9/102:55 pm -
2 stops45h 00m
Deal found 8/7![Multiple Airlines logo]()
$966
This Korean Air deal was found by Cheapflights users on 8/8. 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 11/37:05 am -
2 stops24h 50m
Wed 11/1112:15 am -
2 stops33h 41m
Deal found 8/8![Korean Air logo]()
$997
This Korean Air deal was found by Cheapflights users on 8/7. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:25 am -
2 stops45h 30m
Mon 11/212:15 am -
2 stops31h 00m
Deal found 8/7![Korean Air logo]()
$1,003
This Korean Air deal was found by Cheapflights users on 8/8. 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 11/25:15 pm -
2 stops38h 40m
Tue 11/1012:15 am -
2 stops35h 41m
Deal found 8/8![Korean Air logo]()
$1,004
This Expedia deal was found by Cheapflights users on 8/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 am -
2 stops24h 55m
Wed 12/912:15 am -
2 stops33h 41m
Deal found 8/5![Korean Air logo]()
$1,015
This oojo deal was found by Cheapflights users on 8/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:47 am -
2 stops40h 33m
Wed 12/163:35 pm -
2 stops40h 07m
Deal found 8/7![Multiple Airlines logo]()
$1,035
This Air Canada deal was found by Cheapflights users on 8/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:45 pm -
2 stops27h 15m
Wed 9/911:00 pm -
2 stops34h 11m
Deal found 8/5![Multiple Airlines logo]()
$1,052
This Korean Air deal was found by Cheapflights users on 8/8. 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 10/307:05 am -
2 stops25h 50m
Wed 11/1112:15 am -
2 stops28h 20m
Deal found 8/8![Korean Air logo]()
$1,053
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:00 am -
2 stops40h 20m
Wed 12/163:35 pm -
2 stops40h 07m
Deal found 8/5![Multiple Airlines logo]()
$1,059
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 10, 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 10, 2026.
This Korean Air deal was found by Cheapflights users on 8/8. 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 11/47:05 am -
2 stops24h 50m
Sat 11/712:15 am -
2 stops33h 32m
Deal found 8/8![Korean Air logo]()
$1,053
This SmartFares deal was found by Cheapflights users on 8/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1810:30 am -
2 stops32h 55m
Sat 1/3011:25 am -
2 stops26h 08m
Deal found 8/9![Multiple Airlines logo]()
$1,079
This FlightHub deal was found by Cheapflights users on 8/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:48 pm -
2 stops26h 37m
Mon 10/2611:50 am -
2 stops25h 22m
Deal found 8/5![Multiple Airlines logo]()
$1,094
This IEagle deal was found by Cheapflights users on 8/7. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/75:55 pm -
2 stops25h 40m
Thu 1/2112:15 pm -
3 stops26h 55m
Deal found 8/7![Multiple Airlines logo]()
$1,136
This Gotogate deal was found by Cheapflights users on 8/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:01 am -
3 stops35h 04m
Fri 12/184:25 pm -
3 stops43h 15m
Deal found 8/6![Multiple Airlines logo]()
$1,148
This IEagle deal was found by Cheapflights users on 8/5. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:53 pm -
3 stops29h 52m
Wed 9/98:00 pm -
3 stops40h 01m
Deal found 8/5![Multiple Airlines logo]()
$1,173
This IEagle deal was found by Cheapflights users on 8/9. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/107:40 pm -
2 stops23h 55m
Fri 2/1212:15 pm -
3 stops23h 58m
Deal found 8/9![Multiple Airlines logo]()
$1,188
This KAYAK deal was found by Cheapflights users on 8/6. 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 8/316:53 pm -
2 stops25h 27m
Sat 9/51:40 pm -
3 stops34h 16m
Deal found 8/6![Multiple Airlines logo]()
$1,229
This Gotogate deal was found by Cheapflights users on 8/5. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:50 pm -
3 stops44h 35m
Thu 12/1012:15 pm -
3 stops26h 55m
Deal found 8/5![Multiple Airlines logo]()
$1,248
Last-minute flights from Portland to Chiang MaiDiscover last-minute flight deals from Portland to Chiang Mai. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Chiang Mai. Data last updated August 10, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/6. 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 8/172:49 pm -
2 stops29h 36m
Sat 8/2211:35 am -
2 stops40h 11m
Deal found 8/6![Multiple Airlines logo]()
$1,123
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:32 pm -
2 stops22h 48m
Sat 9/511:20 am -
2 stops36h 36m
Deal found 8/7![Multiple Airlines logo]()
$1,069
This Air Canada deal was found by Cheapflights users on 8/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:45 pm -
2 stops27h 15m
Wed 9/911:00 pm -
2 stops34h 11m
Deal found 8/5![Multiple Airlines logo]()
$1,052
This Ovago deal was found by Cheapflights users on 8/7. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:53 pm -
2 stops52h 32m
Thu 9/102:55 pm -
2 stops45h 00m
Deal found 8/7![Multiple Airlines logo]()
$966
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:45 pm -
2 stops30h 50m
Wed 9/3011:30 am -
2 stops45h 36m
Deal found 8/7![Air Canada logo]()
$1,067
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 10, 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 10, 2026.
This FlightHub deal was found by Cheapflights users on 8/6. 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 8/177:45 pm -
2 stops23h 35m
Deal found 8/6![Multiple Airlines logo]()
$551
This Korean Air deal was found by Cheapflights users on 8/7. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/276:30 am -
2 stops25h 25m
Deal found 8/7![Korean Air logo]()
$558
This Justfly.com deal was found by Cheapflights users on 8/5. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:33 am -
2 stops33h 47m
Deal found 8/5![Multiple Airlines logo]()
$563
This SmartFares deal was found by Cheapflights users on 8/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/610:30 am -
2 stops32h 55m
Deal found 8/7![Multiple Airlines logo]()
$573
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:40 pm -
2 stops24h 40m
Deal found 8/5![China Airlines logo]()
$584
This FlightHub deal was found by Cheapflights users on 8/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:44 pm -
2 stops54h 36m
Deal found 8/5![Multiple Airlines logo]()
$621
This KAYAK deal was found by Cheapflights users on 8/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/317:33 pm -
2 stops23h 52m
Deal found 8/5![Multiple Airlines logo]()
$635
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/12:45 pm -
2 stops28h 40m
Deal found 8/5![Multiple Airlines logo]()
$651
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $924 (KAYAK) |
One-way from | $551 (FlightHub) |
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 August 10, 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 11/4
7:05 am-10:55 pm
2 stops24h 50m
Chiang Mai
Sat 11/7
12:15 am-6:47 pm
2 stops33h 32m
$1,053
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Mon 1/18
10:30 am-10:25 am
2 stops32h 55m
Chiang Mai
Sat 1/30
11:25 am-10:33 pm
2 stops26h 08m
$1,079
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Tue 10/20
5:48 pm-10:25 am
2 stops26h 37m
Chiang Mai
Mon 10/26
11:50 am-11:12 pm
2 stops25h 22m
$1,094
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Thu 1/7
5:55 pm-10:35 am
2 stops25h 40m
Chiang Mai
Thu 1/21
12:15 pm-12:10 am
3 stops26h 55m
$1,136
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Mon 11/16
7:01 am-9:05 am
3 stops35h 04m
Chiang Mai
Fri 12/18
4:25 pm-8:40 pm
3 stops43h 15m
$1,148
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Wed 9/2
5:53 pm-1:45 pm
3 stops29h 52m
Chiang Mai
Wed 9/9
8:00 pm-10:01 pm
3 stops40h 01m
$1,173
Quickest round-trip
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Sun 1/10
7:40 pm-10:35 am
2 stops23h 55m
Chiang Mai
Fri 2/12
12:15 pm-9:13 pm
3 stops23h 58m
$1,188
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Mon 8/31
6:53 pm-10:20 am
2 stops25h 27m
Chiang Mai
Sat 9/5
1:40 pm-9:56 am
3 stops34h 16m
$1,229
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Wed 12/2
9:50 pm-9:25 am
3 stops44h 35m
Chiang Mai
Thu 12/10
12:15 pm-12:10 am
3 stops26h 55m
$1,248
Cheapest one-way
PortlandChiang Mai
PDX Portland - CNX Chiang Mai
PDXCNX
Portland
Wed 1/27
6:30 am-10:55 pm
2 stops25h 25m
$558
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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