PDX - CNX

$522 Find Cheap Flights from Portland to Chiang Mai

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Chiang Mai departing on 2/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chiang Mai

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Chiang Mai, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Chiang Mai, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$847
Multiple Airlines
Tue 4/7Tue 4/28
PDX - CNX • 2 stops
Cheapest one-way
$512
Multiple Airlines
Mon 2/23
PDX - CNX • 2 stops
Top airlines
STARLUX Airlines
Cheapest • from $874 (round-trip)
EVA Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to Chiang Mai (PDX-CNX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Chiang Mai that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Chiang Mai

Tue, Apr 7 - Tue, Apr 28
Multiple Airlines Logo
5:49 pm - 4:20 pm
PDX
-
CNX
32h 31m
2 stops
Multiple Airlines Logo
5:20 pm - 4:49 pm
CNX
-
PDX
37h 29m
2 stops
$847Multiple Airlines
Wed, May 6 - Thu, May 28
Multiple Airlines Logo
5:51 pm - 10:20 am
PDX
-
CNX
26h 29m
2 stops
Multiple Airlines Logo
11:20 am - 11:04 pm
CNX
-
PDX
25h 44m
2 stops
$857Multiple Airlines
Tue, Apr 7 - Sat, Apr 25
STARLUX Airlines Logo
9:30 pm - 4:20 pm
PDX
-
CNX
28h 50m
2 stops
STARLUX Airlines Logo
5:20 pm - 7:34 pm
CNX
-
PDX
40h 14m
2 stops
$874STARLUX Airlines
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
2:47 pm - 3:55 pm
PDX
-
CNX
34h 08m
2 stops
Multiple Airlines Logo
4:55 pm - 9:35 am
CNX
-
PDX
30h 40m
2 stops
$878Multiple Airlines
Tue, Mar 3 - Thu, Mar 12
Multiple Airlines Logo
5:50 pm - 10:25 am
PDX
-
CNX
25h 35m
2 stops
Multiple Airlines Logo
11:25 am - 10:41 pm
CNX
-
PDX
25h 16m
2 stops
$882Multiple Airlines
Mon, Apr 6 - Fri, Apr 24
China Airlines Logo
1:35 pm - 10:20 am
PDX
-
CNX
30h 45m
2 stops
China Airlines Logo
11:20 am - 9:38 am
CNX
-
PDX
36h 18m
2 stops
$896China Airlines
Sat, Apr 25 - Sun, May 10
Multiple Airlines Logo
5:51 pm - 10:20 am
PDX
-
CNX
26h 29m
2 stops
Multiple Airlines Logo
11:20 am - 9:38 am
CNX
-
PDX
36h 18m
2 stops
$921Multiple Airlines
Sat, Apr 25 - Sun, May 10
Multiple Airlines Logo
2:55 pm - 10:20 am
PDX
-
CNX
29h 25m
2 stops
Multiple Airlines Logo
11:20 am - 9:38 am
CNX
-
PDX
36h 18m
2 stops
$925Multiple Airlines
Thu, Mar 5 - Wed, Mar 11
China Airlines Logo
2:47 pm - 10:25 am
PDX
-
CNX
28h 38m
2 stops
China Airlines Logo
11:25 am - 9:35 am
CNX
-
PDX
36h 10m
2 stops
$938China Airlines
Fri, Mar 6 - Wed, Mar 11
Multiple Airlines Logo
6:25 am - 2:20 pm
PDX
-
CNX
40h 55m
2 stops
Multiple Airlines Logo
3:35 pm - 4:50 pm
CNX
-
PDX
39h 15m
2 stops
$950Multiple Airlines
Booking Insights

KAYAK's insights & trends for Portland to Chiang Mai flights

Get data-powered insights and trends into flights from Portland to Chiang Mai to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Portland to Chiang Mai?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Portland to Chiang Mai were found on STARLUX Airlines ($874) and China Airlines ($896).

Find deals

Good to know

Low seasonNovember
Cheapest flight$512
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Portland to Chiang Mai

When to book flights from Portland to Chiang Mai

Are your dates flexible? Find out the best times to travel from Portland to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Chiang Mai

  • What is the cheapest flight from Portland to Chiang Mai?

    In the last 3 days, the lowest price for a flight from Portland to Chiang Mai was $512 for a one-way ticket and $847 for a round-trip.

  • Do I need a passport to fly between Portland and Chiang Mai?

    Yes

  • Which aircraft models fly most regularly from Portland to Chiang Mai?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Chiang Mai?

    Star Alliance is the only airline alliance operating flights between Portland and Chiang Mai.

  • How does KAYAK find such low prices on flights from Portland to Chiang Mai?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Chiang Mai.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Chiang Mai?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chiang Mai from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Chiang Mai?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chiang Mai with an airline and back to Portland with another airline. Booking your flights between Portland and CNX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Chiang Mai?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chiang Mai from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Chiang Mai

 
See real verified KAYAK customer reviews for airlines flying from Portland to Chiang Mai. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Chiang Mai? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
EVA AirOverall score based on 1355 reviews
8.0Entertainment
8.3Comfort
8.1Food
8.4Boarding
8.6Crew
Airline reviews

It was easy going check in was easy and pretty fast entertainment was up to date on movies and food was ok

8.0 ExcellentAnonymous, Feb 2026
IAH - TPE
Read more EVA Air reviews

It was easy going check in was easy and pretty fast entertainment was up to date on movies and food was ok

Premium Economy seats were more comfortable than other airlines I have recently been on. Great staff. Food was unremarkable.

From checking at the airport to end of flights, attentive and caring personnel, comfortable seating, great food. I plan on using EVA again. Thank you, all.

Very nice, I feel I got good value for the price.

Amazing one of the best airlines i have ever traveled with. I live with medical issues called psoriatic arthritis and was in pain on the flight. The flight crew made sure I had fresh ice pack ever hour. Going above an beyond with service and care ⭐️⭐️⭐️⭐️⭐️.

Certain flight crew member were rude and short with me when I asked questions.

We were very impressed with the modern plane its amenities, as well as the services of flight attendants.

Everything was great, however the seats in the back are very small. Not as Comfortable as I would have liked.

The crew very accommodating and food too is good. Keep up the good work

The crews are very efficient. Other airlines should learn from them when it comes to boarding and departing from the airplane. They also display efficiency in serving meals. They don't keep the aisles blocked for hours like some other airlines. The food is poor. Generally the food was unrecognizable and poorly prepared. The only thing that made it better than US flag carriers is that there was a fresh fruit bowl with each meal.

Everything you need to know for your flight from Portland to Chiang Mai

Information on your arrival and departure airports

Portland (PDX)
Chiang Mai (CNX)