$474+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — CNX
abr. 19 — abr. 261
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
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 marzo 20, 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 marzo 20, 2026.
This FlightHub deal was found by Cheapflights users on 3/16. 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.
mar. 9/15:55 pm
PDX
- CNX
2 stops26h 25m
Multiple Airlines
jue. 9/1011:20 am
CNX
- PDX
2 stops36h 26m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$828
This oojo deal was found by Cheapflights users on 3/19. 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.
dom. 5/38:45 am
PDX
- CNX
2 stops35h 35m
China Airlines
dom. 5/1011:20 am
CNX
- PDX
2 stops36h 18m
China Airlines
Deal found 3/19![China Airlines logo]()
$922
This FlightHub deal was found by Cheapflights users on 3/19. 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.
mar. 11/175:55 pm
PDX
- CNX
2 stops25h 35m
Multiple Airlines
dom. 11/2211:25 am
CNX
- PDX
2 stops37h 00m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$941
This FlightHub deal was found by Cheapflights users on 3/17. 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.
jue. 4/231:52 pm
PDX
- CNX
2 stops30h 33m
Multiple Airlines
jue. 5/711:35 am
CNX
- PDX
2 stops25h 18m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$959
This oojo deal was found by Cheapflights users on 3/18. 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.
sáb. 4/258:45 am
PDX
- CNX
2 stops35h 35m
China Airlines
dom. 5/1011:20 am
CNX
- PDX
2 stops36h 10m
China Airlines
Deal found 3/18![China Airlines logo]()
$961
This oojo deal was found by Cheapflights users on 3/15. 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.
jue. 4/231:52 pm
PDX
- CNX
2 stops30h 33m
EVA Air
jue. 5/711:35 am
CNX
- PDX
2 stops34h 26m
EVA Air
Deal found 3/15![EVA Air logo]()
$981
This SmartFares deal was found by Cheapflights users on 3/15. 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.
mié. 4/295:49 pm
PDX
- CNX
2 stops26h 36m
Multiple Airlines
mié. 5/611:35 am
CNX
- PDX
2 stops35h 55m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$983
This FlightHub deal was found by Cheapflights users on 3/20. 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.
sáb. 4/255:51 pm
PDX
- CNX
2 stops26h 34m
Multiple Airlines
dom. 5/1011:35 am
CNX
- PDX
2 stops40h 12m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$1,005
This oojo deal was found by Cheapflights users on 3/16. 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.
sáb. 4/252:55 pm
PDX
- CNX
2 stops29h 30m
EVA Air
dom. 5/1011:35 am
CNX
- PDX
2 stops35h 55m
EVA Air
Deal found 3/16![EVA Air logo]()
$1,019
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 marzo 20, 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 marzo 20, 2026.
This FlightHub deal was found by Cheapflights users on 3/19. 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.
mar. 9/15:55 pm
PDX
- CNX
2 stops26h 25m
Multiple Airlines
jue. 9/1011:20 am
CNX
- PDX
2 stops36h 26m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$843
This oojo deal was found by Cheapflights users on 3/18. 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.
sáb. 4/258:45 am
PDX
- CNX
2 stops35h 35m
China Airlines
dom. 5/1011:20 am
CNX
- PDX
2 stops36h 10m
China Airlines
Deal found 3/18![China Airlines logo]()
$961
This oojo deal was found by Cheapflights users on 3/15. 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.
jue. 4/231:52 pm
PDX
- CNX
2 stops30h 33m
EVA Air
jue. 5/711:35 am
CNX
- PDX
2 stops34h 26m
EVA Air
Deal found 3/15![EVA Air logo]()
$981
This China Eastern deal was found by Cheapflights users on 3/18. 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 Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/106:30 am
PDX
- CNX
2 stops40h 55m
China Eastern
lun. 9/142:55 pm
CNX
- PDX
2 stops39h 15m
China Eastern
Deal found 3/18![China Eastern logo]()
$1,145
This FlightHub deal was found by Cheapflights users on 3/17. 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.
jue. 4/231:52 pm
PDX
- CNX
2 stops30h 33m
Multiple Airlines
jue. 5/711:35 am
CNX
- PDX
2 stops25h 18m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$959
This oojo deal was found by Cheapflights users on 3/16. 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.
sáb. 4/252:55 pm
PDX
- CNX
2 stops29h 30m
EVA Air
dom. 5/1011:35 am
CNX
- PDX
2 stops35h 55m
EVA Air
Deal found 3/16![EVA Air logo]()
$1,019
This FlightHub deal was found by Cheapflights users on 3/20. 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.
sáb. 4/255:51 pm
PDX
- CNX
2 stops26h 34m
Multiple Airlines
dom. 5/1011:35 am
CNX
- PDX
2 stops40h 12m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$1,005
This Ovago deal was found by Cheapflights users on 3/17. 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.
mié. 4/82:50 pm
PDX
- CNX
2 stops29h 35m
Multiple Airlines
lun. 4/2011:35 am
CNX
- PDX
2 stops40h 15m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$1,065
Last-minute flights from Portland to Chiang MaiDiscover last-minute flight deals from Portland to Chiang Mai. Data last updated marzo 20, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Chiang Mai. Data last updated marzo 20, 2026 and is based on user searches.
This Ovago deal was found by Cheapflights users on 3/17. 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.
mié. 4/82:50 pm
PDX
- CNX
2 stops29h 35m
Multiple Airlines
lun. 4/2011:35 am
CNX
- PDX
2 stops40h 15m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$1,065
This FlightHub deal was found by Cheapflights users on 3/17. 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.
jue. 4/231:52 pm
PDX
- CNX
2 stops30h 33m
Multiple Airlines
jue. 5/711:35 am
CNX
- PDX
2 stops25h 18m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$959
This oojo deal was found by Cheapflights users on 3/15. 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.
jue. 4/231:52 pm
PDX
- CNX
2 stops30h 33m
EVA Air
jue. 5/711:35 am
CNX
- PDX
2 stops34h 26m
EVA Air
Deal found 3/15![EVA Air logo]()
$981
This oojo deal was found by Cheapflights users on 3/18. 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.
sáb. 4/258:45 am
PDX
- CNX
2 stops35h 35m
China Airlines
dom. 5/1011:20 am
CNX
- PDX
2 stops36h 10m
China Airlines
Deal found 3/18![China Airlines logo]()
$961
This FlightHub deal was found by Cheapflights users on 3/20. 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.
sáb. 4/255:51 pm
PDX
- CNX
2 stops26h 34m
Multiple Airlines
dom. 5/1011:35 am
CNX
- PDX
2 stops40h 12m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$1,005
This oojo deal was found by Cheapflights users on 3/16. 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.
sáb. 4/252:55 pm
PDX
- CNX
2 stops29h 30m
EVA Air
dom. 5/1011:35 am
CNX
- PDX
2 stops35h 55m
EVA Air
Deal found 3/16![EVA Air logo]()
$1,019
This SmartFares deal was found by Cheapflights users on 3/15. 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.
mié. 4/295:49 pm
PDX
- CNX
2 stops26h 36m
Multiple Airlines
mié. 5/611:35 am
CNX
- PDX
2 stops35h 55m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$983
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 marzo 20, 2026.
Search for one-way flight options from Portland to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated marzo 20, 2026.
This SmartFares deal was found by Cheapflights users on 3/19. 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.
dom. 9/1310:30 am
PDX
- CNX
2 stops33h 50m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$474
This SmartFares deal was found by Cheapflights users on 3/15. 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.
mar. 4/143:42 pm
PDX
- CNX
2 stops28h 38m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$481
This FlightHub deal was found by Cheapflights users on 3/17. 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.
sáb. 4/258:45 am
PDX
- CNX
2 stops35h 35m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$542
This SmartFares deal was found by Cheapflights users on 3/17. 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.
mié. 4/82:50 pm
PDX
- CNX
2 stops29h 35m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$548
This oojo deal was found by Cheapflights users on 3/20. 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.
sáb. 4/251:52 pm
PDX
- CNX
2 stops30h 28m
China Airlines
Deal found 3/20![China Airlines logo]()
$557
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 marzo 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $828 (FlightHub) |
One-way from | $474 (SmartFares) |
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 marzo 20, 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
mar. 9/1
5:55 pm-10:20 am
2 stops26h 25m
Chiang Mai
jue. 9/10
11:20 am-9:46 am
2 stops36h 26m
$843
Quickest round-trip
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
jue. 4/23
1:52 pm-10:25 am
2 stops30h 33m
Chiang Mai
jue. 5/7
11:35 am-10:53 pm
2 stops25h 18m
$959
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
sáb. 4/25
8:45 am-10:20 am
2 stops35h 35m
Chiang Mai
dom. 5/10
11:20 am-9:30 am
2 stops36h 10m
$961
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
jue. 4/23
1:52 pm-10:25 am
2 stops30h 33m
Chiang Mai
jue. 5/7
11:35 am-8:01 am
2 stops34h 26m
$981
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
sáb. 4/25
5:51 pm-10:25 am
2 stops26h 34m
Chiang Mai
dom. 5/10
11:35 am-1:47 pm
2 stops40h 12m
$1,005
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
sáb. 4/25
2:55 pm-10:25 am
2 stops29h 30m
Chiang Mai
dom. 5/10
11:35 am-9:30 am
2 stops35h 55m
$1,019
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
mié. 4/8
2:50 pm-10:25 am
2 stops29h 35m
Chiang Mai
lun. 4/20
11:35 am-1:50 pm
2 stops40h 15m
$1,065
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
jue. 9/10
6:30 am-1:25 pm
2 stops40h 55m
Chiang Mai
lun. 9/14
2:55 pm-4:10 pm
2 stops39h 15m
$1,145
Cheapest one-way
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
dom. 9/13
10:30 am-10:20 am
2 stops33h 50m
$474
Quickest one-way
PortlandChiang Mai
PDX - CNX
PDXCNX
Portland
mar. 4/14
3:42 pm-10:20 am
2 stops28h 38m
$481
Showing 1-10 of 12 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 marzo 20, 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.
Food
8.1
Comfort
8.3
Boarding
8.4
Overall
8.5
Entertainment
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
CRK - TPE
Food
8.1
Comfort
8.3
Boarding
8.4
Overall
8.5
Entertainment
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
CRK - 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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Chiang Mai flight routes
Complete your trip
Flights by cabin class
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Other flights from Portland
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Alternative routes for Portland to Chiang Mai
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Chiang Mai
Explore flights to Chiang Mai departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on marzo 20, 2026.
Complete your trip
Complete your trip to Chiang Mai by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Portland to Chiang Mai by cabin class
Find flights from Portland to Chiang Mai, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Chiang Mai flights
Browse other Portland and Chiang Mai flight options. Last updated on marzo 20, 2026.
Other flights from Portland
Browse through other flights departing from Portland. Flights are based on user searches made on Cheapflights and were last updated on marzo 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 marzo 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$963 | Average$1,031 | FlexibilityNo cancel fee | On-time74% |