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

China Eastern, Korean Air, and China Airlines are the most popular carriers operating from Portland to Chiang Mai

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 many operators does momondo search for flights from Portland Airport to Chiang Mai Airport?

There is 1 operator available for flights from Portland Airport to Chiang Mai Airport as of November 2025.

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.

$488 Cheap Flights from Portland to Chiang Mai in 2025/26

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Find the cheapest flights from Portland to Chiang Mai

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Cheap round-trip flights

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10:33 am - 10:25 amPDX-CNX

32h 52m2 stops

11:25 am - 11:32 pmCNX-PDX

27h 07m2 stops

$854China Airlines

Find Deal

Wed, Jan 7 - Wed, Feb 11

5:51 pm - 10:25 amPDX-CNX

25h 34m2 stops

5:35 pm - 4:28 pmCNX-PDX

37h 53m2 stops

$860China Airlines

Find Deal

Mon, Jan 12 - Mon, Feb 16

5:35 pm - 10:25 amPDX-CNX

25h 50m2 stops

11:25 am - 4:49 pmCNX-PDX

44h 24m2 stops

$871China Airlines

Find Deal

Tue, Jan 20 - Tue, Jan 27

7:10 am - 10:55 pmPDX-CNX

24h 45m2 stops

12:15 am - 4:14 pmCNX-PDX

30h 59m2 stops

$952Korean Air

Find Deal

Thu, Jan 15 - Tue, Feb 24

7:10 am - 10:55 pmPDX-CNX

24h 45m2 stops

12:15 am - 6:53 pmCNX-PDX

33h 38m2 stops

$953Korean Air

Find Deal

Thu, Jan 15 - Tue, Feb 24

7:24 am - 2:20 pmPDX-CNX

39h 56m2 stops

3:35 pm - 4:49 pmCNX-PDX

40h 14m2 stops

$956Multiple Airlines

Find Deal

Thu, Jan 22 - Mon, Feb 2

7:45 am - 9:25 amPDX-CNX

34h 40m3 stops

9:05 pm - 2:48 pmCNX-PDX

32h 43m3 stops

$962Multiple Airlines

Find Deal

Tue, Jan 20 - Tue, Jan 27

10:33 am - 10:35 amPDX-CNX

33h 02m2 stops

11:50 am - 9:47 amCNX-PDX

36h 57m2 stops

$963EVA Air

Find Deal

Wed, Jan 14 - Wed, Feb 25

1:51 pm - 10:35 amPDX-CNX

29h 44m2 stops

11:50 am - 10:46 pmCNX-PDX

25h 56m2 stops

$980EVA Air

Find Deal

Thu, Jan 1 - Thu, Jan 22

6:00 am - 9:05 amPDX-CNX

36h 05m3 stops

4:25 pm - 4:30 pmCNX-PDX

39h 05m3 stops

$1,144China Eastern

Find Deal

Thu, Jan 1 - Thu, Jan 22

Korean Air flights from Portland to Chiang Mai

Our best Korean Air deals on Portland to Chiang Mai flight tickets

Korean Air

Jan 15

PDX7:10 amPortland

24h 45m

2 stops

CNX10:55 pmChiang Mai

Feb 24

CNX12:15 amChiang Mai

30h 59m

2 stops

PDX4:14 pmPortland

$952

Find similar

Korean Air

Jan 15

PDX7:10 amPortland

24h 45m

2 stops

CNX10:55 pmChiang Mai

Feb 24

CNX12:15 amChiang Mai

33h 38m

2 stops

PDX6:53 pmPortland

$953

Find similar

Korean Air

Jan 16

PDX7:10 amPortland

24h 45m

2 stops

CNX10:55 pmChiang Mai

Feb 24

CNX12:15 amChiang Mai

27h 29m

2 stops

PDX12:44 pmPortland

$993

Find similar

EVA Air flights from Portland to Chiang Mai

Our best EVA Air deals on Portland to Chiang Mai flight tickets

EVA Air

Jan 14

PDX10:33 amPortland

33h 02m

2 stops

CNX10:35 amChiang Mai

Feb 25

CNX11:50 amChiang Mai

36h 57m

2 stops

PDX9:47 amPortland

$963

Find similar

EVA Air

Jan 1

PDX1:51 pmPortland

29h 44m

2 stops

CNX10:35 amChiang Mai

Jan 22

CNX11:50 amChiang Mai

25h 56m

2 stops

PDX10:46 pmPortland

$980

Find similar

EVA Air

Jan 24

PDX2:30 pmPortland

29h 05m

2 stops

CNX10:35 amChiang Mai

Feb 8

CNX11:50 amChiang Mai

26h 42m

2 stops

PDX11:32 pmPortland

$1,004

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 1/7

10:33 am-10:25 am

2 stops32h 52m

Chiang Mai

Wed 2/11

11:25 am-11:32 pm

2 stops27h 07m

$854

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 1/12

5:51 pm-10:25 am

2 stops25h 34m

Chiang Mai

Mon 2/16

5:35 pm-4:28 pm

2 stops37h 53m

$860

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 1/20

5:35 pm-10:25 am

2 stops25h 50m

Chiang Mai

Tue 1/27

11:25 am-4:49 pm

2 stops44h 24m

$871

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/15

7:10 am-10:55 pm

2 stops24h 45m

Chiang Mai

Tue 2/24

12:15 am-4:14 pm

2 stops30h 59m

$952

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/15

7:10 am-10:55 pm

2 stops24h 45m

Chiang Mai

Tue 2/24

12:15 am-6:53 pm

2 stops33h 38m

$953

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/22

7:24 am-2:20 pm

2 stops39h 56m

Chiang Mai

Mon 2/2

3:35 pm-4:49 pm

2 stops40h 14m

$956

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 1/20

7:45 am-9:25 am

3 stops34h 40m

Chiang Mai

Tue 1/27

9:05 pm-2:48 pm

3 stops32h 43m

$962

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 1/14

10:33 am-10:35 am

2 stops33h 02m

Chiang Mai

Wed 2/25

11:50 am-9:47 am

2 stops36h 57m

$963

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/1

1:51 pm-10:35 am

2 stops29h 44m

Chiang Mai

Thu 1/22

11:50 am-10:46 pm

2 stops25h 56m

$980

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/1

6:00 am-9:05 am

3 stops36h 05m

Chiang Mai

Thu 1/22

4:25 pm-4:30 pm

3 stops39h 05m

$1,144

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest day to depart on your flight to Chiang Mai?

The cheapest day to depart from Portland to Chiang Mai is on a Wednesday. Travelers who choose to depart for Chiang Mai on a Wednesday will often find tickets for as low as $1,172. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Chiang Mai for around $1,526.

What is the cheapest time of day to depart on your flight to Chiang Mai?

Flying to Chiang Mai from Portland in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,172 when looking at flights departing in the morning. Flights to Chiang Mai are more costly at noon, with an average ticket price of $1,991. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights	None

There are no direct flights from Portland to Chiang Mai. There are no popular flight routes from Portland to Chiang Mai.

Search flight deals

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 23h 57m.
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 many operators does momondo search for flights from Portland Airport to Chiang Mai Airport?
There is 1 operator available for flights from Portland Airport to Chiang Mai Airport as of November 2025.
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.
What is the most popular airline from Portland to Chiang Mai?
momondo data reveals that the most frequently booked airline on the route from Portland to Chiang Mai is EVA Air, representing 100% of all bookings.

Best airlines flying from Portland to Chiang Mai

Compare and see reviews for airlines that fly from Portland to Chiang Mai with momondo

Airline	Rating	Free Cancellation	Price
EVA Air	PriceFrom $975	Free Cancellation	Rating 8.4 1,272 reviews		Search EVA Air flights

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.