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

China Airlines, China Eastern, and Korean Air 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 October 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.

$489 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

Enter your travel dates to find the best prices.

7:14 am - 10:25 amPDX-CNX

36h 11m2 stops

11:25 am - 10:47 amCNX-PDX

38h 22m2 stops

$859China Airlines

Find Deal

mié., ene. 7 - mié., feb. 11

4:34 pm - 10:25 amPDX-CNX

26h 51m2 stops

5:35 pm - 9:47 amCNX-PDX

31h 12m2 stops

$860China Airlines

Find Deal

lun., ene. 12 - lun., feb. 16

10:34 am - 10:25 amPDX-CNX

32h 51m2 stops

11:25 am - 10:47 amCNX-PDX

38h 22m2 stops

$889Multiple Airlines

Find Deal

lun., ene. 12 - jue., feb. 26

5:35 pm - 3:55 pmPDX-CNX

31h 20m2 stops

4:55 pm - 10:26 pmCNX-PDX

43h 31m2 stops

$902STARLUX Airlines

Find Deal

dom., ene. 11 - mar., mar. 10

7:38 pm - 10:25 amPDX-CNX

23h 47m2 stops

11:25 am - 12:03 amCNX-PDX

27h 38m2 stops

$921Multiple Airlines

Find Deal

mar., ene. 13 - mar., feb. 24

5:10 pm - 10:55 pmPDX-CNX

38h 45m2 stops

12:15 am - 7:29 pmCNX-PDX

34h 14m2 stops

$933Korean Air

Find Deal

mié., ene. 14 - lun., mar. 2

10:34 am - 10:35 amPDX-CNX

33h 01m2 stops

11:50 am - 10:46 pmCNX-PDX

25h 56m2 stops

$942EVA Air

Find Deal

mié., ene. 7 - mié., feb. 11

4:34 pm - 10:35 amPDX-CNX

27h 01m2 stops

11:50 am - 9:47 amCNX-PDX

36h 57m2 stops

$950EVA Air

Find Deal

jue., ene. 15 - mié., feb. 25

2:38 pm - 3:55 pmPDX-CNX

34h 17m2 stops

4:55 pm - 10:26 pmCNX-PDX

43h 31m2 stops

$957STARLUX Airlines

Find Deal

jue., ene. 15 - mar., mar. 10

5:10 pm - 10:55 pmPDX-CNX

38h 45m2 stops

12:15 am - 4:29 pmCNX-PDX

31h 14m2 stops

$973Korean Air

Find Deal

mié., ene. 14 - sáb., feb. 28

EVA Air flights from Portland to Chiang Mai

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

EVA Air

Jan 7

PDX10:34 amPortland

33h 01m

2 stops

CNX10:35 amChiang Mai

Feb 11

CNX11:50 amChiang Mai

25h 56m

2 stops

PDX10:46 pmPortland

$942

Find similar

EVA Air

Jan 15

PDX4:34 pmPortland

27h 01m

2 stops

CNX10:35 amChiang Mai

Feb 25

CNX11:50 amChiang Mai

36h 57m

2 stops

PDX9:47 amPortland

$950

Find similar

EVA Air

Jan 7

PDX7:20 amPortland

36h 15m

2 stops

CNX10:35 amChiang Mai

Feb 11

CNX11:50 amChiang Mai

25h 56m

2 stops

PDX10:46 pmPortland

$969

Find similar

China Airlines flights from Portland to Chiang Mai

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

China Airlines

Jan 7

PDX7:14 amPortland

36h 11m

2 stops

CNX10:25 amChiang Mai

Feb 11

CNX11:25 amChiang Mai

38h 22m

2 stops

PDX10:47 amPortland

$859

Find similar

China Airlines

Jan 12

PDX4:34 pmPortland

26h 51m

2 stops

CNX10:25 amChiang Mai

Feb 16

CNX5:35 pmChiang Mai

31h 12m

2 stops

PDX9:47 amPortland

$860

Find similar

China Airlines

Nov 12

PDX3:29 pmPortland

27h 56m

2 stops

CNX10:25 amChiang Mai

Nov 19

CNX11:25 amChiang Mai

37h 24m

2 stops

PDX9:49 amPortland

$874

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mié. 1/7

7:14 am-10:25 am

2 stops36h 11m

Chiang Mai

mié. 2/11

11:25 am-10:47 am

2 stops38h 22m

$859

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

lun. 1/12

4:34 pm-10:25 am

2 stops26h 51m

Chiang Mai

lun. 2/16

5:35 pm-9:47 am

2 stops31h 12m

$860

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

lun. 1/12

10:34 am-10:25 am

2 stops32h 51m

Chiang Mai

jue. 2/26

11:25 am-10:47 am

2 stops38h 22m

$889

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

dom. 1/11

5:35 pm-3:55 pm

2 stops31h 20m

Chiang Mai

mar. 3/10

4:55 pm-10:26 pm

2 stops43h 31m

$902

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mar. 1/13

7:38 pm-10:25 am

2 stops23h 47m

Chiang Mai

mar. 2/24

11:25 am-12:03 am

2 stops27h 38m

$921

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mié. 1/14

5:10 pm-10:55 pm

2 stops38h 45m

Chiang Mai

lun. 3/2

12:15 am-7:29 pm

2 stops34h 14m

$933

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mié. 1/7

10:34 am-10:35 am

2 stops33h 01m

Chiang Mai

mié. 2/11

11:50 am-10:46 pm

2 stops25h 56m

$942

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

jue. 1/15

4:34 pm-10:35 am

2 stops27h 01m

Chiang Mai

mié. 2/25

11:50 am-9:47 am

2 stops36h 57m

$950

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

jue. 1/15

2:38 pm-3:55 pm

2 stops34h 17m

Chiang Mai

mar. 3/10

4:55 pm-10:26 pm

2 stops43h 31m

$957

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mié. 1/14

5:10 pm-10:55 pm

2 stops38h 45m

Chiang Mai

sáb. 2/28

12:15 am-4:29 pm

2 stops31h 14m

$973

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 47m.
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 October 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 1,251 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.