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 51% 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.

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

United Airlines is the most popular carrier 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 July 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.

$433 Cheap Flights from Portland to Thailand in 2026

Discover deals from 900+ travel sites with momondo.

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.

3:30 pm - 5:05 am

PDX

BKK

23h 35m

1 stop

7:05 am - 9:31 am

BKK

PDX

16h 26m

1 stop

$895Air Canada

Mon, Sep 14 - Wed, Oct 14

3:30 pm - 5:05 am

PDX

BKK

23h 35m

1 stop

2:35 am - 7:06 pm

BKK

PDX

30h 31m

2 stops

$902Air Canada

Mon, Sep 14 - Tue, Oct 13

9:00 am - 11:55 pm

PDX

BKK

24h 55m

2 stops

7:00 am - 2:46 pm

BKK

PDX

21h 46m

2 stops

$941ANA

Tue, Sep 8 - Tue, Sep 15

7:03 am - 9:55 pm

PDX

BKK

24h 52m

2 stops

5:05 am - 4:36 pm

BKK

PDX

25h 31m

2 stops

$955Multiple Airlines

Thu, Sep 3 - Thu, Sep 17

8:18 pm - 1:25 pm

PDX

CNX

51h 07m

2 stops

2:55 pm - 11:59 pm

CNX

PDX

47h 04m

2 stops

$959Multiple Airlines

Mon, Aug 31 - Sat, Sep 5

2:30 pm - 12:00 pm

PDX

BKK

31h 30m

2 stops

5:50 pm - 10:44 am

BKK

PDX

30h 54m

2 stops

$979STARLUX Airlines

Thu, Oct 8 - Sun, Oct 18

8:18 pm - 12:00 pm

PDX

BKK

25h 42m

2 stops

5:50 pm - 10:50 am

BKK

PDX

31h 00m

2 stops

$979STARLUX Airlines

Tue, Sep 1 - Tue, Sep 29

7:30 am - 5:10 am

PDX

BKK

30h 40m

2 stops

7:10 am - 6:31 pm

BKK

PDX

26h 21m

2 stops

$991ANA

Wed, Jan 13 - Wed, Jan 20

5:35 am - 5:10 am

PDX

BKK

32h 35m

2 stops

9:10 am - 8:33 pm

BKK

PDX

26h 23m

2 stops

$1,006United Airlines

Thu, Jan 21 - Tue, Jan 26

7:30 am - 5:10 am

PDX

BKK

30h 40m

2 stops

9:10 am - 12:54 am

BKK

PDX

30h 44m

2 stops

$1,006United Airlines

Tue, Jan 19 - Tue, Jan 26

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ANA flights from Portland to Thailand

Our best ANA deals on Portland to Thailand flight tickets

ANA

Sep 8

PDX9:00 amPortland

24h 55m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 15

BKK7:00 amBangkok Suvarnabhumi

21h 46m

2 stops

PDX2:46 pmPortland

$941

ANA

Jan 13

PDX7:30 amPortland

30h 40m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Jan 20

BKK7:10 amBangkok Suvarnabhumi

26h 21m

2 stops

PDX6:31 pmPortland

$991

ANA

Sep 22

PDX9:00 amPortland

24h 55m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 27

BKK11:35 pmBangkok Suvarnabhumi

28h 52m

2 stops

PDX2:27 pmPortland

$1,015

United Airlines flights from Portland to Thailand

Our best United Airlines deals on Portland to Thailand flight tickets

United Airlines

Jan 19

PDX7:30 amPortland

30h 40m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Jan 27

BKK9:10 amBangkok Suvarnabhumi

30h 44m

2 stops

PDX12:54 amPortland

$1,006

United Airlines

Jan 18

PDX5:35 amPortland

32h 35m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Jan 25

BKK7:10 amBangkok Suvarnabhumi

28h 23m

2 stops

PDX8:33 pmPortland

$1,008

United Airlines

Sep 7

PDX7:00 amPortland

25h 15m

2 stops

BKK10:15 pmBangkok Suvarnabhumi

Sep 21

BKK9:35 amBangkok Suvarnabhumi

29h 02m

2 stops

PDX12:37 amPortland

$1,009

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 9/14

3:30 pm-5:05 am

1 stop23h 35m

Bangkok Suvarnabhumi

Wed 10/14

7:05 am-9:31 am

1 stop16h 26m

$895

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 9/14

3:30 pm-5:05 am

1 stop23h 35m

Bangkok Suvarnabhumi

Tue 10/13

2:35 am-7:06 pm

2 stops30h 31m

$902

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/8

9:00 am-11:55 pm

2 stops24h 55m

Bangkok Suvarnabhumi

Tue 9/15

7:00 am-2:46 pm

2 stops21h 46m

$941

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 9/3

7:03 am-9:55 pm

2 stops24h 52m

Bangkok Suvarnabhumi

Thu 9/17

5:05 am-4:36 pm

2 stops25h 31m

$955

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

8:18 pm-1:25 pm

2 stops51h 07m

Chiang Mai

Sat 9/5

2:55 pm-11:59 pm

2 stops47h 04m

$959

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/8

2:30 pm-12:00 pm

2 stops31h 30m

Bangkok Suvarnabhumi

Sun 10/18

5:50 pm-10:44 am

2 stops30h 54m

$979

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

8:18 pm-12:00 pm

2 stops25h 42m

Bangkok Suvarnabhumi

Tue 9/29

5:50 pm-10:50 am

2 stops31h 00m

$979

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 1/13

7:30 am-5:10 am

2 stops30h 40m

Bangkok Suvarnabhumi

Wed 1/20

7:10 am-6:31 pm

2 stops26h 21m

$991

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 1/21

5:35 am-5:10 am

2 stops32h 35m

Bangkok Suvarnabhumi

Tue 1/26

9:10 am-8:33 pm

2 stops26h 23m

$1,006

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 1/19

7:30 am-5:10 am

2 stops30h 40m

Bangkok Suvarnabhumi

Tue 1/26

9:10 am-12:54 am

2 stops30h 44m

$1,006

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 $914. If you are unable to visit Thailand during the month of April, then departing from Portland during the month January is also very affordable. Most momondo users find prices during this month for around $983.

How far in advance should I book a flight from Portland 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 $1,129 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 $977 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 20% 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	23h 30m
Direct flights	None

The fastest flight from Portland to Thailand takes 23h 30m

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 July 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 $99	Free Cancellation	Rating 7.8 8,486 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,433 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.8 362 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,584 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 838 reviews	Search China Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,888 reviews	Search Japan Airlines flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 10,052 reviews	Search United Airlines flights
Korean Air	PriceFrom $845	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
ANA	PriceFrom $890	Free Cancellation	Rating 8.3 1,284 reviews	Search ANA flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,506 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.