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

Air Canada, Qatar Airways, and United Airlines are the most popular carriers operating from Portland to Thailand

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 11 different airlines that fly to Thailand on a routine basis, so you have a few additional options to choose from.

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 April 2026, there are 11 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.

$422 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.

7:40 pm - 9:45 am

PDX

BKK

24h 05m

2 stops

5:30 pm - 10:44 pm

BKK

PDX

19h 14m

2 stops

$906Multiple Airlines

Mon, Oct 5 - Tue, Oct 20

9:30 pm - 9:45 am

PDX

BKK

22h 15m

2 stops

10:50 am - 10:27 am

BKK

PDX

37h 37m

2 stops

$920Multiple Airlines

Tue, Aug 18 - Sat, Aug 29

7:00 am - 11:30 pm

PDX

BKK

26h 30m

2 stops

1:35 am - 1:50 pm

BKK

PDX

26h 15m

2 stops

$926EVA Air

Wed, May 6 - Tue, May 12

9:30 pm - 12:10 pm

PDX

BKK

24h 40m

2 stops

10:50 am - 10:27 am

BKK

PDX

37h 37m

2 stops

$929Multiple Airlines

Tue, Aug 18 - Sat, Aug 29

5:50 pm - 9:45 am

PDX

BKK

25h 55m

2 stops

10:50 am - 9:25 am

BKK

PDX

36h 35m

2 stops

$934Multiple Airlines

Wed, Sep 9 - Sat, Sep 19

9:29 pm - 10:20 am

PDX

CNX

22h 51m

2 stops

11:20 am - 8:13 am

CNX

PDX

34h 53m

2 stops

$935Multiple Airlines

Tue, Sep 1 - Tue, Sep 22

5:50 pm - 4:20 pm

PDX

BKK

32h 30m

2 stops

5:30 pm - 9:25 am

BKK

PDX

29h 55m

2 stops

$941China Airlines

Wed, Sep 9 - Sun, Sep 20

6:50 pm - 12:10 pm

PDX

BKK

27h 20m

2 stops

1:20 pm - 9:25 am

BKK

PDX

34h 05m

2 stops

$942China Airlines

Mon, Sep 14 - Sun, Oct 11

7:18 pm - 10:25 am

PDX

CNX

25h 07m

2 stops

11:35 am - 8:00 pm

CNX

PDX

46h 25m

2 stops

$1,055EVA Air

Sat, Apr 25 - Sun, May 10

12:03 pm - 7:45 am

PDX

HKT

29h 42m

2 stops

8:30 pm - 10:01 pm

HKT

PDX

39h 31m

2 stops

$1,124Qatar Airways

Wed, Aug 5 - Fri, Aug 21

EVA Air flights from Portland to Thailand

Our best EVA Air deals on Portland to Thailand flight tickets

EVA Air

May 6

PDX7:00 amPortland

26h 30m

2 stops

BKK11:30 pmBangkok Suvarnabhumi

May 12

BKK1:35 amBangkok Suvarnabhumi

26h 15m

2 stops

PDX1:50 pmPortland

$926

EVA Air

Apr 25

PDX7:18 pmPortland

25h 07m

2 stops

CNX10:25 amChiang Mai

May 10

CNX11:35 amChiang Mai

46h 25m

2 stops

PDX8:00 pmPortland

$1,055

China Airlines flights from Portland to Thailand

Our best China Airlines deals on Portland to Thailand flight tickets

China Airlines

Sep 9

PDX5:50 pmPortland

32h 30m

2 stops

BKK4:20 pmBangkok Suvarnabhumi

Sep 20

BKK5:30 pmBangkok Suvarnabhumi

29h 55m

2 stops

PDX9:25 amPortland

$941

China Airlines

Sep 14

PDX6:50 pmPortland

27h 20m

2 stops

BKK12:10 pmBangkok Suvarnabhumi

Oct 11

BKK1:20 pmBangkok Suvarnabhumi

34h 05m

2 stops

PDX9:25 amPortland

$942

China Airlines

May 6

PDX5:49 pmPortland

32h 31m

2 stops

BKK4:20 pmBangkok Suvarnabhumi

May 18

BKK10:50 amBangkok Suvarnabhumi

36h 39m

2 stops

PDX9:29 amPortland

$947

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 10/5

7:40 pm-9:45 am

2 stops24h 05m

Bangkok Suvarnabhumi

Tue 10/20

5:30 pm-10:44 pm

2 stops19h 14m

$906

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 8/18

9:30 pm-9:45 am

2 stops22h 15m

Bangkok Suvarnabhumi

Sat 8/29

10:50 am-10:27 am

2 stops37h 37m

$920

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 5/6

7:00 am-11:30 pm

2 stops26h 30m

Bangkok Suvarnabhumi

Tue 5/12

1:35 am-1:50 pm

2 stops26h 15m

$926

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 8/18

9:30 pm-12:10 pm

2 stops24h 40m

Bangkok Suvarnabhumi

Sat 8/29

10:50 am-10:27 am

2 stops37h 37m

$929

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/9

5:50 pm-9:45 am

2 stops25h 55m

Bangkok Suvarnabhumi

Sat 9/19

10:50 am-9:25 am

2 stops36h 35m

$934

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 9/1

9:29 pm-10:20 am

2 stops22h 51m

Chiang Mai

Tue 9/22

11:20 am-8:13 am

2 stops34h 53m

$935

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/9

5:50 pm-4:20 pm

2 stops32h 30m

Bangkok Suvarnabhumi

Sun 9/20

5:30 pm-9:25 am

2 stops29h 55m

$941

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 9/14

6:50 pm-12:10 pm

2 stops27h 20m

Bangkok Suvarnabhumi

Sun 10/11

1:20 pm-9:25 am

2 stops34h 05m

$942

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sat 4/25

7:18 pm-10:25 am

2 stops25h 07m

Chiang Mai

Sun 5/10

11:35 am-8:00 pm

2 stops46h 25m

$1,055

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Wed 8/5

12:03 pm-7:45 am

2 stops29h 42m

Phuket City

Fri 8/21

8:30 pm-10:01 pm

2 stops39h 31m

$1,124

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 April is, on average, the cheapest month to fly to Thailand from Portland, with most prices found around $920. If you are unable to visit Thailand during the month of April, then departing from Portland during the month March is also very affordable. Most momondo users find prices during this month for around $927.

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 $1,056 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 $961 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 22% 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

Frequently asked questions about flying 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 April 2026, there are 11 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 8,406 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,275 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 297 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,493 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,779 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 816 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.4 1,171 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,204 reviews	Search Korean Air flights
United Airlines	PriceFrom $821	Free Cancellation	Rating 7.4 9,582 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,409 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.