PDX - CNX

$525 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 8/27. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$900
Typical prices: $1,028-$961
Multiple Airlines
Mon 8/31Sat 9/5
PDX - CNX • 2 stops
Cheapest one-way
$525
Multiple Airlines
Thu 8/27
PDX - CNX • 2 stops
Top airlines
EVA Air
Cheapest • from $1,055 (round-trip)
EVA Air
Best reviews • 8.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Portland and Chiang Mai. You'll need at least 2 connections.
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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
Useful Info
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

Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
5:50 pm - 10:20 am
PDX
-
CNX
26h 30m
2 stops
Multiple Airlines Logo
11:20 am - 9:25 am
CNX
-
PDX
36h 05m
2 stops
$900Multiple Airlines
Wed, Aug 26 - Mon, Aug 31
Multiple Airlines Logo
6:50 pm - 10:20 am
PDX
-
CNX
25h 30m
2 stops
Multiple Airlines Logo
11:20 am - 9:07 am
CNX
-
PDX
35h 47m
2 stops
$957Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
5:50 pm - 10:20 am
PDX
-
CNX
26h 30m
2 stops
Multiple Airlines Logo
11:20 am - 9:25 am
CNX
-
PDX
36h 05m
2 stops
$971Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
10:34 am - 10:20 am
PDX
-
CNX
33h 46m
2 stops
Multiple Airlines Logo
11:20 am - 8:06 am
CNX
-
PDX
34h 46m
2 stops
$982Multiple Airlines
Sat, Apr 25 - Sun, May 10
Multiple Airlines Logo
2:55 pm - 10:25 am
PDX
-
CNX
29h 30m
2 stops
Multiple Airlines Logo
11:35 am - 4:22 pm
CNX
-
PDX
42h 47m
2 stops
$1,005Multiple Airlines
Mon, Sep 7 - Sat, Sep 19
Multiple Airlines Logo
5:35 pm - 10:20 am
PDX
-
CNX
26h 45m
2 stops
Multiple Airlines Logo
11:20 am - 9:25 am
CNX
-
PDX
36h 05m
2 stops
$1,008Multiple Airlines
Mon, Sep 7 - Sat, Sep 19
Multiple Airlines Logo
3:00 pm - 10:20 am
PDX
-
CNX
29h 20m
2 stops
Multiple Airlines Logo
11:20 am - 8:13 am
CNX
-
PDX
34h 53m
2 stops
$1,009Multiple Airlines
Sat, Apr 25 - Sun, May 10
EVA Air Logo
9:30 pm - 10:25 am
PDX
-
CNX
22h 55m
2 stops
EVA Air Logo
11:35 am - 4:22 pm
CNX
-
PDX
42h 47m
2 stops
$1,055EVA Air
Mon, Sep 7 - Sat, Sep 19
Multiple Airlines Logo
5:35 pm - 10:25 am
PDX
-
CNX
26h 50m
2 stops
Multiple Airlines Logo
1:40 pm - 10:01 pm
CNX
-
PDX
22h 21m
3 stops
$1,091Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
9:29 pm - 10:25 am
PDX
-
CNX
22h 56m
2 stops
Multiple Airlines Logo
1:40 pm - 10:01 pm
CNX
-
PDX
22h 21m
3 stops
$1,097Multiple Airlines
Useful Info

Good to know

Low seasonNovember
Cheapest flight$525
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 $525 for a one-way ticket and $900 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.

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

    In the past 3 days, the cheapest round-trip tickets from Portland to Chiang Mai were found on EVA Air ($1,055) and Qatar Airways ($1,408).

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.
8.5
EVA AirOverall score based on 1399 reviews
8.4Boarding
8.1Food
8.7Crew
8.3Comfort
8.0Entertainment
Airline reviews

My luggage was lost and didnt arrive in manila yesterday. And until now im still waiting for the confirmation if my luggage is teady for pick up in terminal 1

6.0 GoodAnonymous, Apr 2026
JFK - TPE
Read more EVA Air reviews

My luggage was lost and didnt arrive in manila yesterday. And until now im still waiting for the confirmation if my luggage is teady for pick up in terminal 1

I always preferred EVA air every time I visit Philippines. It’s just this time that I have to be very early to make sure that I don’t miss my flight due to TSA problem. There’s only one choice of food serve which you use to have 2 on our flight from Taiwan to Philippines . Otherwise I will still use EVA air in my future flight.

Service was great. Flight schedule was on time. Staffs are friendly.

Overall was good but it would be good if the airline is providing snack such as sandwich or instant noodle between meals for LA to Taipei

Amazing customer service. BUT!! It would be nice if the flight attendants SMILE a little more, I know they are doing their job, but it is importantly to smile back and be warm to passengers. Nobody is trying to hit on them, it’s just being polite. So, please Taiwanese flight attendants: SMILE MORE WHEN YOU INTERACT WITH PAYING CUSTOMERS

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 ⭐️⭐️⭐️⭐️⭐️.

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)