$453+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNX
Apr 6 — Apr 131
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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Best
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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 March 7, 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 March 7, 2026.
This SmartFares deal was found by Cheapflights users on 3/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:55 pm
PDX
- CNX
2 stops26h 25m
Multiple Airlines
Tue 10/2711:25 am
CNX
- PDX
2 stops36h 21m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$835
This Gurufare deal was found by Cheapflights users on 3/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/102:47 pm
PDX
- CNX
2 stops35h 08m
Multiple Airlines
Tue 3/174:55 pm
CNX
- PDX
2 stops30h 55m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$886
This oojo deal was found by Cheapflights users on 3/4. 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 5/31:52 pm
PDX
- CNX
2 stops30h 28m
China Airlines
Sun 5/1011:20 am
CNX
- PDX
2 stops36h 18m
China Airlines
Deal found 3/4![China Airlines logo]()
$895
This China Airlines deal was found by Cheapflights users on 3/4. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:39 pm
PDX
- CNX
2 stops26h 46m
Multiple Airlines
Tue 4/2111:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$899
This Expedia deal was found by Cheapflights users on 3/4. 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 3/302:42 pm
PDX
- CNX
2 stops29h 38m
Multiple Airlines
Mon 5/411:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$902
This SmartFares deal was found by Cheapflights users on 3/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:55 pm
PDX
- CNX
2 stops29h 25m
Multiple Airlines
Sat 5/911:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$917
This Expedia deal was found by Cheapflights users on 3/5. 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.
Sat 3/282:42 pm
PDX
- CNX
2 stops29h 38m
Multiple Airlines
Wed 4/2911:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$929
This oojo deal was found by Cheapflights users on 3/5. 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.
Mon 4/205:49 pm
PDX
- CNX
2 stops26h 31m
China Airlines
Wed 5/1311:20 am
CNX
- PDX
2 stops36h 09m
China Airlines
Deal found 3/5![China Airlines logo]()
$932
This oojo deal was found by Cheapflights users on 3/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:37 pm
PDX
- CNX
2 stops29h 43m
China Airlines
Mon 5/411:20 am
CNX
- PDX
2 stops36h 10m
China Airlines
Deal found 3/3![China Airlines logo]()
$933
This SmartFares deal was found by Cheapflights users on 3/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/283:42 pm
PDX
- CNX
2 stops28h 38m
Multiple Airlines
Mon 4/611:20 am
CNX
- PDX
2 stops36h 30m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$936
This Gurufare deal was found by Cheapflights users on 3/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:14 am
PDX
- CNX
2 stops40h 11m
Multiple Airlines
Tue 4/282:55 pm
CNX
- PDX
2 stops38h 43m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$942
This Expedia deal was found by Cheapflights users on 3/4. 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 4/205:49 pm
PDX
- CNX
2 stops26h 31m
Multiple Airlines
Tue 5/1911:20 am
CNX
- PDX
2 stops36h 09m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$945
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 March 7, 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 March 7, 2026.
This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/283:42 pm
PDX
- CNX
2 stops28h 38m
Multiple Airlines
Wed 4/2911:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$929
This oojo deal was found by Cheapflights users on 3/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:52 pm
PDX
- CNX
2 stops30h 28m
China Airlines
Sun 5/1011:20 am
CNX
- PDX
2 stops36h 18m
China Airlines
Deal found 3/6![China Airlines logo]()
$966
This oojo deal was found by Cheapflights users on 3/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:07 pm
PDX
- CNX
2 stops32h 18m
EVA Air
Thu 4/2311:35 am
CNX
- PDX
2 stops35h 56m
EVA Air
Deal found 3/2![EVA Air logo]()
$1,026
This Gurufare deal was found by Cheapflights users on 3/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:14 am
PDX
- CNX
2 stops40h 11m
Multiple Airlines
Tue 4/282:55 pm
CNX
- PDX
2 stops38h 43m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$942
This IEagle deal was found by Cheapflights users on 3/3. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:50 pm
PDX
- CNX
2 stops26h 45m
Multiple Airlines
Mon 3/237:45 pm
CNX
- PDX
3 stops32h 05m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$1,008
This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/282:42 pm
PDX
- CNX
2 stops29h 38m
Multiple Airlines
Sun 4/2611:20 am
CNX
- PDX
2 stops46h 14m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,034
This BusinessClass deal was found by Cheapflights users on 3/4. 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.
Fri 4/249:32 pm
PDX
- CNX
2 stops46h 53m
Multiple Airlines
Wed 5/68:00 pm
CNX
- PDX
3 stops50h 01m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$1,063
This BusinessClass deal was found by Cheapflights users on 3/3. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:32 pm
PDX
- CNX
2 stops46h 53m
Multiple Airlines
Sun 5/108:00 pm
CNX
- PDX
3 stops40h 53m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$1,068
This China Airlines deal was found by Cheapflights users on 3/5. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/252:55 pm
PDX
- CNX
2 stops29h 25m
Multiple Airlines
Fri 5/111:20 am
CNX
- PDX
3 stops38h 25m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$1,092
Last-minute flights from Portland to Chiang MaiDiscover last-minute flight deals from Portland to Chiang Mai. Data last updated March 7, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Chiang Mai. Data last updated March 7, 2026 and is based on user searches.
This China Airlines deal was found by Cheapflights users on 3/4. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:39 pm
PDX
- CNX
2 stops26h 46m
Multiple Airlines
Tue 4/2111:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$899
This Gurufare deal was found by Cheapflights users on 3/2. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/102:47 pm
PDX
- CNX
2 stops35h 08m
Multiple Airlines
Tue 3/174:55 pm
CNX
- PDX
2 stops30h 55m
Multiple Airlines
Deal found 3/2![Multiple Airlines logo]()
$886
This Expedia deal was found by Cheapflights users on 3/5. 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.
Sat 3/282:42 pm
PDX
- CNX
2 stops29h 38m
Multiple Airlines
Wed 4/2911:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$929
This SmartFares deal was found by Cheapflights users on 3/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/283:42 pm
PDX
- CNX
2 stops28h 38m
Multiple Airlines
Mon 4/611:20 am
CNX
- PDX
2 stops36h 30m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$936
This Expedia deal was found by Cheapflights users on 3/4. 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 3/302:42 pm
PDX
- CNX
2 stops29h 38m
Multiple Airlines
Mon 5/411:20 am
CNX
- PDX
2 stops36h 10m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$902
This oojo deal was found by Cheapflights users on 3/5. 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.
Mon 4/205:49 pm
PDX
- CNX
2 stops26h 31m
China Airlines
Wed 5/1311:20 am
CNX
- PDX
2 stops36h 09m
China Airlines
Deal found 3/5![China Airlines logo]()
$932
This oojo deal was found by Cheapflights users on 3/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/202:37 pm
PDX
- CNX
2 stops29h 43m
China Airlines
Mon 5/411:20 am
CNX
- PDX
2 stops36h 10m
China Airlines
Deal found 3/3![China Airlines logo]()
$933
This Expedia deal was found by Cheapflights users on 3/4. 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 4/205:49 pm
PDX
- CNX
2 stops26h 31m
Multiple Airlines
Tue 5/1911:20 am
CNX
- PDX
2 stops36h 09m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$945
This Gurufare deal was found by Cheapflights users on 3/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:14 am
PDX
- CNX
2 stops40h 11m
Multiple Airlines
Tue 4/282:55 pm
CNX
- PDX
2 stops38h 43m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$942
This Gurufare deal was found by Cheapflights users on 3/5. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:32 pm
PDX
- CNX
2 stops49h 53m
Multiple Airlines
Fri 5/12:55 pm
CNX
- PDX
2 stops45h 18m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$956
This oojo deal was found by Cheapflights users on 3/5. 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.
Sat 4/251:52 pm
PDX
- CNX
2 stops30h 28m
China Airlines
Sun 5/1011:20 am
CNX
- PDX
2 stops36h 18m
China Airlines
Deal found 3/5![China Airlines logo]()
$966
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 March 7, 2026.
Search for one-way flight options from Portland to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated March 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Sat 4/189:30 pm
PDX
- CNX
3 stops46h 20m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 4/218:46 pm
PDX
- CNX
3 stops45h 09m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$459
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Tue 4/148:46 pm
PDX
- CNX
3 stops54h 04m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$464
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Mon 4/1310:30 am
PDX
- CNX
3 stops38h 30m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Wed 4/155:49 pm
PDX
- CNX
3 stops29h 51m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Thu 4/169:54 am
PDX
- CNX
3 stops45h 41m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/297:05 am
PDX
- CNX
2 stops37h 15m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$536
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Sun 4/125:14 pm
PDX
- CNX
3 stops40h 01m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$539
This oojo deal was found by Cheapflights users on 3/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:52 pm
PDX
- CNX
2 stops30h 28m
China Airlines
Deal found 3/3![China Airlines logo]()
$543
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 March 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $895 (oojo) |
One-way from | $453 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
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 March 7, 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 - CNX
PDXCNX
Portland
Sat 3/28
3:42 pm-10:20 am
2 stops28h 38m
Chiang Mai
Wed 4/29
11:20 am-9:30 am
2 stops36h 10m
$929
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Tue 4/21
7:14 am-1:25 pm
2 stops40h 11m
Chiang Mai
Tue 4/28
2:55 pm-3:38 pm
2 stops38h 43m
$942
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Sat 4/25
1:52 pm-10:20 am
2 stops30h 28m
Chiang Mai
Sun 5/10
11:20 am-9:38 am
2 stops36h 18m
$966
Quickest round-trip
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Tue 3/17
5:50 pm-10:35 am
2 stops26h 45m
Chiang Mai
Mon 3/23
7:45 pm-1:50 pm
3 stops32h 05m
$1,008
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Thu 4/16
12:07 pm-10:25 am
2 stops32h 18m
Chiang Mai
Thu 4/23
11:35 am-9:31 am
2 stops35h 56m
$1,026
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Sat 3/28
2:42 pm-10:20 am
2 stops29h 38m
Chiang Mai
Sun 4/26
11:20 am-7:34 pm
2 stops46h 14m
$1,034
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Fri 4/24
9:32 pm-10:25 am
2 stops46h 53m
Chiang Mai
Wed 5/6
8:00 pm-8:01 am
3 stops50h 01m
$1,063
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Sat 4/25
9:32 pm-10:25 am
2 stops46h 53m
Chiang Mai
Sun 5/10
8:00 pm-10:53 pm
3 stops40h 53m
$1,068
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Sat 4/25
2:55 pm-10:20 am
2 stops29h 25m
Chiang Mai
Fri 5/1
11:20 am-11:45 am
3 stops38h 25m
$1,092
Cheapest one-way
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
Tue 4/21
8:46 pm-7:55 am
3 stops45h 09m
$459
Showing 1-10 of 17 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 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.
Reviews of airlines servicing Chiang Mai
Get insights into the airlines that provide service to Chiang Mai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Mai. Reviews last updated March 7, 2026.
See what other customers who have flown with EVA Air from Portland to Chiang Mai have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.0
Overall
8.4
Crew
8.6
Food
8.1
Comfort
8.3
Boarding
8.4
Reviews
1 / 20
6.0
GoodJack,Feb 2026
MNL - TPE
Entertainment
8.0
Overall
8.4
Crew
8.6
Food
8.1
Comfort
8.3
Boarding
8.4
Reviews
1 / 20
6.0
GoodJack,Feb 2026
MNL - TPE
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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Top airline flying from Portland to Chiang Mai
Discover the top airline that operate flights from Portland to Chiang Mai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$963 | Average$1,068 | FlexibilityNo cancel fee | On-time74% |