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Cheap flights from Portland to Chiang Mai from $1,019

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Chiang Mai departing on 6/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Chiang Mai

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:03 am - 1:25 pm
PDX
-
CNX
40h 22m
2 stops
Multiple Airlines Logo
2:55 pm - 11:59 pm
CNX
-
PDX
47h 04m
2 stops
$1,051Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
7:03 am - 1:25 pm
PDX
-
CNX
40h 22m
2 stops
Multiple Airlines Logo
2:55 pm - 11:59 pm
CNX
-
PDX
47h 04m
2 stops
$1,061Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
7:03 am - 1:25 pm
PDX
-
CNX
40h 22m
2 stops
Multiple Airlines Logo
2:55 pm - 11:59 pm
CNX
-
PDX
47h 04m
2 stops
$1,064Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
7:19 am - 12:20 am
PDX
-
CNX
27h 01m
2 stops
Multiple Airlines Logo
2:55 pm - 9:55 pm
CNX
-
PDX
45h 00m
2 stops
$1,079Multiple Airlines
Thu, Aug 13 - Tue, Sep 8
Multiple Airlines Logo
7:00 am - 2:20 pm
PDX
-
CNX
40h 20m
2 stops
Multiple Airlines Logo
3:35 pm - 1:55 pm
CNX
-
PDX
37h 20m
2 stops
$1,100Multiple Airlines
Fri, Nov 20 - Sun, Nov 29
Multiple Airlines Logo
7:00 am - 2:20 pm
PDX
-
CNX
40h 20m
2 stops
Multiple Airlines Logo
3:35 pm - 1:55 pm
CNX
-
PDX
37h 20m
2 stops
$1,101Multiple Airlines
Fri, Nov 20 - Sun, Nov 29
Multiple Airlines Logo
5:38 pm - 10:25 am
PDX
-
CNX
50h 47m
2 stops
Multiple Airlines Logo
8:00 pm - 8:51 pm
CNX
-
PDX
38h 51m
3 stops
$1,269Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
9:00 am - 11:15 am
PDX
-
CNX
36h 15m
3 stops
Multiple Airlines Logo
5:20 pm - 10:01 pm
CNX
-
PDX
42h 41m
2 stops
$1,308Multiple Airlines
Mon, Aug 31 - Sat, Sep 5
Multiple Airlines Logo
7:38 pm - 1:45 pm
PDX
-
CNX
28h 07m
3 stops
Multiple Airlines Logo
11:20 am - 11:01 pm
CNX
-
PDX
25h 41m
2 stops
$1,311Multiple Airlines
Thu, Aug 13 - Tue, Sep 8
Multiple Airlines Logo
7:38 pm - 1:45 pm
PDX
-
CNX
28h 07m
3 stops
Multiple Airlines Logo
1:40 pm - 10:01 pm
CNX
-
PDX
22h 21m
3 stops
$1,314Multiple Airlines
Thu, Aug 13 - Tue, Sep 8

EVA Air flights from Portland to Chiang Mai

Our best EVA Air deals on Portland to Chiang Mai flight tickets
EVA Air
Jun 10
PDX10:29 amPortland
33h 56m
2 stops
CNX10:25 amChiang Mai
Jun 23
CNX11:35 amChiang Mai
36h 11m
2 stops
PDX9:46 amPortland
$2,684
EVA Air
Oct 14
PDX1:03 pmPortland
55h 22m
2 stops
CNX10:25 amChiang Mai
Nov 16
CNX7:45 pmChiang Mai
37h 46m
3 stops
PDX6:31 pmPortland
$7,898

momondo 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, momondo users made 832,500 searches. Data last updated May 29, 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

Price

Cheapest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

7:03 am-1:25 pm

2 stops40h 22m

Chiang Mai

Sat 9/5

2:55 pm-11:59 pm

2 stops47h 04m

$1,051

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

7:03 am-1:25 pm

2 stops40h 22m

Chiang Mai

Sat 9/5

2:55 pm-11:59 pm

2 stops47h 04m

$1,061

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

7:03 am-1:25 pm

2 stops40h 22m

Chiang Mai

Sat 9/5

2:55 pm-11:59 pm

2 stops47h 04m

$1,064

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 8/13

7:19 am-12:20 am

2 stops27h 01m

Chiang Mai

Tue 9/8

2:55 pm-9:55 pm

2 stops45h 00m

$1,079

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 11/20

7:00 am-2:20 pm

2 stops40h 20m

Chiang Mai

Sun 11/29

3:35 pm-1:55 pm

2 stops37h 20m

$1,100

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 11/20

7:00 am-2:20 pm

2 stops40h 20m

Chiang Mai

Sun 11/29

3:35 pm-1:55 pm

2 stops37h 20m

$1,101

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

5:38 pm-10:25 am

2 stops50h 47m

Chiang Mai

Sat 9/5

8:00 pm-8:51 pm

3 stops38h 51m

$1,269

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

9:00 am-11:15 am

3 stops36h 15m

Chiang Mai

Sat 9/5

5:20 pm-10:01 pm

2 stops42h 41m

$1,308

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 8/13

7:38 pm-1:45 pm

3 stops28h 07m

Chiang Mai

Tue 9/8

11:20 am-11:01 pm

2 stops25h 41m

$1,311
Quickest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 8/13

7:38 pm-1:45 pm

3 stops28h 07m

Chiang Mai

Tue 9/8

1:40 pm-10:01 pm

3 stops22h 21m

$1,314

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Chiang Mai from

How to get the cheapest flight ticket from Portland to Chiang Mai

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Portland to Chiang Mai?

EVA Air is the most popular carrier operating from Portland to Chiang Mai

When to book flights from Portland to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Chiang Mai according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Chiang Mai (PDX to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Chiang Mai

Fastest flight time

40h 20m

Direct flights

None
The fastest flight from Portland to Chiang Mai takes 40h 20m
There are no direct flights from Portland to Chiang Mai. There are no popular flight routes from Portland to Chiang Mai.
Search flight deals

Frequently asked questions about flying from Portland to Chiang Mai

  • How far is Portland to Chiang Mai by plane?

    Chiang Mai is 7278.1 mi away from Portland. A reasonable flight in good conditions will take 40h 20m.

  • When did momondo last update prices for flights from Portland Airport to Chiang Mai Airport?

    Prices for flights from Portland Airport to Chiang Mai Airport refresh daily.

  • How old do you have to be to fly from Portland Airport to Chiang Mai Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Chiang Mai Airport.

  • What documentation or ID do you need to fly to Chiang Mai Airport?

    The travel and health documents you'll need for your trip to Chiang Mai Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chiang Mai Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Chiang Mai?

It is quick and easy to find Portland to Chiang Mai flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chiang Mai that suits you.

Can I find flights from Portland to Chiang Mai with flexible booking policies on momondo?

Flights from Portland to Chiang Mai with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Chiang Mai?

Once all potential Portland to Chiang Mai flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Chiang Mai right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Chiang Mai flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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