What airlines fly to Thailand?

Air Canada, STARLUX Airlines and United Airlines are the top three most popular airlines that fly to Thailand from Portland according to our data. Air Canada is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 12 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Portland to Thailand?

Philippine Airlines and Cathay Pacific are the most popular carriers operating from Portland to Thailand

When did momondo last update prices for flights from Portland Airport to Thailand?

Prices for flights from Portland Airport to Thailand are updated daily.

How many operators does momondo search for flights from Portland Airport to Thailand?

As of February 2026, there are 12 operators available to choose from for flights from Portland Airport to Thailand.

How old do you have to be to fly from Portland Airport to Thailand?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Thailand.

What documentation or ID do you need to fly to Thailand?

The travel and health documents required for your trip to Thailand can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Thailand. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$344 Cheap Flights from Portland to Thailand in 2026

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Find the cheapest flights from Portland to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:52 pm - 3:55 pm

PDX

CNX

33h 03m

2 stops

4:55 pm - 10:41 pm

CNX

PDX

43h 46m

2 stops

$841STARLUX Airlines

Thu, Mar 5 - Thu, Mar 12

5:49 pm - 2:10 pm

PDX

HKT

30h 21m

2 stops

8:10 pm - 4:50 pm

HKT

PDX

34h 40m

2 stops

$847Singapore Airlines

Mon, May 4 - Wed, May 20

2:50 pm - 10:20 am

PDX

CNX

29h 30m

2 stops

11:20 am - 9:25 am

CNX

PDX

36h 05m

2 stops

$850Multiple Airlines

Tue, May 12 - Tue, Jun 9

1:52 pm - 10:20 am

PDX

CNX

30h 28m

2 stops

11:20 am - 12:52 pm

CNX

PDX

39h 32m

2 stops

$856Multiple Airlines

Mon, Apr 27 - Mon, May 4

10:51 am - 10:50 am

PDX

HKT

33h 59m

2 stops

6:20 pm - 9:29 am

HKT

PDX

29h 09m

2 stops

$867Cathay Pacific

Mon, Apr 27 - Wed, May 13

7:15 am - 9:35 am

PDX

BKK

36h 20m

3 stops

3:45 pm - 6:46 pm

BKK

PDX

41h 01m

3 stops

$877United Airlines

Wed, May 6 - Tue, May 19

5:49 pm - 10:20 am

PDX

CNX

26h 31m

2 stops

11:20 am - 9:38 am

CNX

PDX

36h 18m

2 stops

$877Multiple Airlines

Mon, Apr 20 - Thu, Apr 30

5:50 pm - 9:45 am

PDX

BKK

25h 55m

2 stops

10:50 am - 11:03 pm

BKK

PDX

26h 13m

2 stops

$880Multiple Airlines

Wed, May 13 - Sun, Jun 7

7:30 am - 11:25 am

PDX

BKK

37h 55m

3 stops

4:55 pm - 12:35 am

BKK

PDX

21h 40m

2 stops

$885United Airlines

Mon, Mar 9 - Thu, Mar 12

10:30 am - 11:20 am

PDX

HKT

34h 50m

2 stops

12:20 pm - 4:52 pm

HKT

PDX

42h 32m

2 stops

$941Cathay Pacific

Sun, Mar 15 - Fri, Mar 20

China Airlines flights from Portland to Thailand

Our best China Airlines deals on Portland to Thailand flight tickets

China Airlines

Feb 19

PDX2:47 pmPortland

28h 03m

2 stops

BKK9:50 amBangkok Suvarnabhumi

Mar 11

BKK10:55 amBangkok Suvarnabhumi

36h 40m

2 stops

PDX9:35 amPortland

$880

China Airlines

Mar 31

PDX2:48 pmPortland

35h 32m

2 stops

BKK4:20 pmBangkok Suvarnabhumi

Apr 29

BKK2:40 amBangkok Suvarnabhumi

44h 58m

2 stops

PDX9:38 amPortland

$904

China Airlines

Feb 22

PDX7:05 amPortland

39h 00m

2 stops

BKK1:05 pmBangkok Suvarnabhumi

Mar 7

BKK3:35 amBangkok Suvarnabhumi

44h 00m

2 stops

PDX8:35 amPortland

$924

STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Mar 5

PDX3:52 pmPortland

33h 03m

2 stops

CNX3:55 pmChiang Mai

Mar 12

CNX4:55 pmChiang Mai

43h 46m

2 stops

PDX10:41 pmPortland

$841

STARLUX Airlines

Mar 9

PDX5:40 pmPortland

28h 55m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Mar 12

BKK5:40 pmBangkok Suvarnabhumi

43h 01m

2 stops

PDX10:41 pmPortland

$889

STARLUX Airlines

Feb 28

PDX9:48 pmPortland

47h 47m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Mar 14

BKK1:45 pmBangkok Suvarnabhumi

33h 57m

2 stops

PDX9:42 amPortland

$896

Fly from

Fly to

Route

Depart

Return

Price

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 3/5

3:52 pm-3:55 pm

2 stops33h 03m

Chiang Mai

Thu 3/12

4:55 pm-10:41 pm

2 stops43h 46m

$841

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Mon 5/4

5:49 pm-2:10 pm

2 stops30h 21m

Phuket City

Wed 5/20

8:10 pm-4:50 pm

2 stops34h 40m

$847

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 5/12

2:50 pm-10:20 am

2 stops29h 30m

Chiang Mai

Tue 6/9

11:20 am-9:25 am

2 stops36h 05m

$850

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 4/27

1:52 pm-10:20 am

2 stops30h 28m

Chiang Mai

Mon 5/4

11:20 am-12:52 pm

2 stops39h 32m

$856

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Mon 4/27

10:51 am-10:50 am

2 stops33h 59m

Phuket City

Wed 5/13

6:20 pm-9:29 am

2 stops29h 09m

$867

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 5/6

7:15 am-9:35 am

3 stops36h 20m

Bangkok Suvarnabhumi

Tue 5/19

3:45 pm-6:46 pm

3 stops41h 01m

$877

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 4/20

5:49 pm-10:20 am

2 stops26h 31m

Chiang Mai

Thu 4/30

11:20 am-9:38 am

2 stops36h 18m

$877

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 5/13

5:50 pm-9:45 am

2 stops25h 55m

Bangkok Suvarnabhumi

Sun 6/7

10:50 am-11:03 pm

2 stops26h 13m

$880

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/9

7:30 am-11:25 am

3 stops37h 55m

Bangkok Suvarnabhumi

Thu 3/12

4:55 pm-12:35 am

2 stops21h 40m

$885

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 3/15

10:30 am-11:20 am

2 stops34h 50m

Phuket City

Fri 3/20

12:20 pm-4:52 pm

2 stops42h 32m

$941

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 Thailand

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 month to fly to Thailand?

The month of August is, on average, the cheapest month to fly to Thailand from Portland, with most prices found around $945. If you are unable to visit Thailand during the month of August, then departing from Portland during the month January is also very affordable. Most momondo users find prices during this month for around $951.

How far in advance should I book a flight to Thailand?

You are more likely to see cheaper flights to Thailand from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,075 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Portland for as low as $932 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 2% on your flight if you consider stops on a Portland to Thailand flight.

Cheap Portland to Thailand flight deals and tips

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

Fastest flight time	22h 15m
Direct flights	None

The fastest flight from Portland to Thailand takes 22h 15m

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

Search flight deals

When did momondo last update prices for flights from Portland Airport to Thailand?
Prices for flights from Portland Airport to Thailand are updated daily.
How many operators does momondo search for flights from Portland Airport to Thailand?
As of February 2026, there are 12 operators available to choose from for flights from Portland Airport to Thailand.
How old do you have to be to fly from Portland Airport to Thailand?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Thailand.
What documentation or ID do you need to fly to Thailand?
The travel and health documents required for your trip to Thailand can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Thailand. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Thailand

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $139	Free Cancellation	Rating 7.9 8,174 reviews	Search Delta flights
STARLUX Airlines	PriceFrom $757	Free Cancellation	Rating 8.9 273 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,452 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,703 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 803 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.4 1,090 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,191 reviews	Search Korean Air flights
United Airlines	PriceFrom $821	Free Cancellation	Rating 7.4 9,274 reviews	Search United Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,731 reviews	Search Qatar Airways flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.4 1,351 reviews	Search EVA Air flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Thailand. momondo saves you time and could save you money on your trip.

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

Flights from Portland to Thailand 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 Thailand?

Once you have performed a search for Portland to Thailand flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Thailand, momondo offers a useful price alert feature which will track prices for flights to Thailand from Portland and alert you when they change.