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

Delta, Korean Air, and STARLUX 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 are 2 operators available for flights from Portland Airport to Chiang Mai Airport as of September 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.

$440 Cheap Flights from Portland to Chiang Mai in 2025/26

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Find the cheapest flights from Portland to Chiang Mai

Round-trip

One-way

Cheap round-trip flights

7:45 pm - 3:55 pmPDX-CNX

29h 10m2 stops

4:55 pm - 6:53 pmCNX-PDX

40h 58m2 stops

$839

Find Deal

Tue, Feb 3 - Tue, Feb 10

7:10 am - 10:55 pmPDX-CNX

24h 45m2 stops

12:15 am - 4:15 pmCNX-PDX

31h 00m2 stops

$861Korean Air

Find Deal

Tue, Feb 3 - Mon, Feb 9

2:30 pm - 10:25 amPDX-CNX

52h 55m3 stops

11:25 am - 12:03 amCNX-PDX

27h 38m2 stops

$885China Airlines

Find Deal

Tue, Feb 3 - Tue, Feb 10

10:40 am - 10:25 amPDX-CNX

33h 45m2 stops

11:25 am - 11:37 pmCNX-PDX

27h 12m2 stops

$920China Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

5:30 pm - 3:55 pmPDX-CNX

31h 25m2 stops

4:55 pm - 10:26 pmCNX-PDX

44h 31m2 stops

$921STARLUX Airlines

Find Deal

Thu, Jan 1 - Thu, Jan 22

5:45 pm - 4:25 pmPDX-CNX

32h 40m2 stops

11:25 am - 6:17 amCNX-PDX

32h 52m2 stops

$935China Airlines

Find Deal

Sat, Oct 18 - Tue, Oct 28

8:50 pm - 4:20 pmPDX-CNX

29h 30m2 stops

4:55 pm - 12:09 amCNX-PDX

45h 14m2 stops

$938STARLUX Airlines

Find Deal

Tue, Oct 14 - Thu, Oct 30

2:30 pm - 10:35 amPDX-CNX

29h 05m2 stops

11:50 am - 8:50 pmCNX-PDX

24h 00m2 stops

$943EVA Air

Find Deal

Mon, Nov 10 - Wed, Dec 3

5:25 pm - 9:55 pmPDX-CNX

38h 30m2 stops

12:15 am - 8:51 pmCNX-PDX

34h 36m2 stops

$1,039Delta

Find Deal

Fri, Oct 17 - Wed, Oct 29

12:40 am - 9:55 pmPDX-CNX

31h 15m2 stops

12:15 am - 11:53 pmCNX-PDX

37h 38m2 stops

$1,114Delta

Find Deal

Thu, Oct 16 - Wed, Oct 29

Korean Air flights from Portland to Chiang Mai

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

Korean Air

Feb 3

PDX7:10 amPortland

24h 45m

2 stops

CNX10:55 pmChiang Mai

Feb 9

CNX12:15 amChiang Mai

31h 00m

2 stops

PDX4:15 pmPortland

$861

Find similar

Korean Air

Sep 27

PDX9:17 amPortland

22h 38m

2 stops

CNX9:55 pmChiang Mai

Sep 30

CNX11:15 pmChiang Mai

37h 24m

2 stops

PDX10:39 pmPortland

$1,165

Find similar

Korean Air

Jan 1

PDX6:00 amPortland

25h 55m

2 stops

CNX10:55 pmChiang Mai

Jan 21

CNX12:15 amChiang Mai

31h 14m

2 stops

PDX4:29 pmPortland

$1,173

Find similar

China Airlines flights from Portland to Chiang Mai

Our best China Airlines deals on Portland to Chiang Mai flight tickets

China Airlines

Feb 3

PDX2:30 pmPortland

52h 55m

3 stops

CNX10:25 amChiang Mai

Feb 10

CNX11:25 amChiang Mai

27h 38m

2 stops

PDX12:03 amPortland

$885

Find similar

China Airlines

Oct 29

PDX10:40 amPortland

33h 45m

2 stops

CNX10:25 amChiang Mai

Nov 5

CNX11:25 amChiang Mai

27h 12m

2 stops

PDX11:37 pmPortland

$920

Find similar

China Airlines

Oct 18

PDX5:45 pmPortland

32h 40m

2 stops

CNX4:25 pmChiang Mai

Oct 28

CNX11:25 amChiang Mai

32h 52m

2 stops

PDX6:17 amPortland

$935

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 2/3

7:45 pm-3:55 pm

2 stops29h 10m

Chiang Mai

Tue 2/10

4:55 pm-6:53 pm

2 stops40h 58m

$839

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 2/3

7:10 am-10:55 pm

2 stops24h 45m

Chiang Mai

Mon 2/9

12:15 am-4:15 pm

2 stops31h 00m

$861

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 2/3

2:30 pm-10:25 am

3 stops52h 55m

Chiang Mai

Tue 2/10

11:25 am-12:03 am

2 stops27h 38m

$885

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 10/29

10:40 am-10:25 am

2 stops33h 45m

Chiang Mai

Wed 11/5

11:25 am-11:37 pm

2 stops27h 12m

$920

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/1

5:30 pm-3:55 pm

2 stops31h 25m

Chiang Mai

Thu 1/22

4:55 pm-10:26 pm

2 stops44h 31m

$921

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sat 10/18

5:45 pm-4:25 pm

2 stops32h 40m

Chiang Mai

Tue 10/28

11:25 am-6:17 am

2 stops32h 52m

$935

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 10/14

8:50 pm-4:20 pm

2 stops29h 30m

Chiang Mai

Thu 10/30

4:55 pm-12:09 am

2 stops45h 14m

$938

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 11/10

2:30 pm-10:35 am

2 stops29h 05m

Chiang Mai

Wed 12/3

11:50 am-8:50 pm

2 stops24h 00m

$943

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 10/17

5:25 pm-9:55 pm

2 stops38h 30m

Chiang Mai

Wed 10/29

12:15 am-8:51 pm

2 stops34h 36m

$1,039

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 10/16

12:40 am-9:55 pm

2 stops31h 15m

Chiang Mai

Wed 10/29

12:15 am-11:53 pm

2 stops37h 38m

$1,114

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 22h 38m.
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 are 2 operators available for flights from Portland Airport to Chiang Mai Airport as of September 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 54% of all bookings. The subsequent popular airline is Korean Air at 46%.

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
Korean Air	PriceFrom $789	Free Cancellation	Rating 8.4 1,139 reviews		Search Korean Air flights
EVA Air	PriceFrom $975	Free Cancellation	Rating 8.4 1,236 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.