What airlines fly to Bangkok?

Air Canada, STARLUX Airlines and United Airlines are the top three most popular airlines that fly to Bangkok from Portland according to our data. Air Canada is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 12 different airlines that fly to Bangkok 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 Bangkok?

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

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

As of December 2025, there are 12 operators available to choose from for flights from Portland Airport to Bangkok.

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

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 Bangkok.

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

The travel and health documents required for your trip to Bangkok 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 Bangkok. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$348 Cheap Flights from Portland to Bangkok in 2025/26

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Find the cheapest flights from Portland to Bangkok

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 8:00 pm

PDX

BKK

24h 00m2 stops

8:10 pm - 1:50 pm

BKK

PDX

31h 40m2 stops

$793Singapore Airlines

Tue, Mar 31 - Tue, Apr 14

5:35 pm - 4:30 pm

PDX

BKK

31h 55m2 stops

5:40 pm - 8:47 pm

BKK

PDX

42h 07m2 stops

$811STARLUX Airlines

Sun, Jan 18 - Thu, Feb 5

9:50 am - 11:05 pm

PDX

BKK

22h 15m2 stops

10:40 am - 6:30 pm

BKK

PDX

22h 50m2 stops

$817Multiple Airlines

Mon, Feb 9 - Mon, Feb 16

7:15 am - 12:55 am

PDX

BKK

26h 40m2 stops

2:05 am - 12:42 pm

BKK

PDX

25h 37m2 stops

$821Korean Air

Thu, Feb 19 - Sun, Feb 22

9:30 pm - 8:00 pm

PDX

BKK

31h 30m2 stops

8:00 pm - 1:50 pm

BKK

PDX

31h 50m2 stops

$823Singapore Airlines

Mon, Feb 2 - Tue, Mar 17

5:35 pm - 4:30 pm

PDX

BKK

31h 55m2 stops

5:40 pm - 8:47 pm

BKK

PDX

42h 07m2 stops

$826STARLUX Airlines

Mon, Jan 12 - Sat, Jan 24

5:35 pm - 4:30 pm

PDX

BKK

31h 55m2 stops

5:40 pm - 8:47 pm

BKK

PDX

42h 07m2 stops

$830STARLUX Airlines

Sun, Jan 18 - Sat, Jan 31

5:51 pm - 4:30 pm

PDX

BKK

31h 39m2 stops

1:45 pm - 8:47 pm

BKK

PDX

22h 02m2 stops

$831Multiple Airlines

Fri, Jan 23 - Thu, Feb 5

5:50 pm - 2:35 pm

PDX

BKK

29h 45m2 stops

12:00 pm - 9:35 am

BKK

PDX

36h 35m2 stops

$836Singapore Airlines

Tue, Feb 10 - Tue, Feb 24

7:10 am - 9:30 pm

PDX

BKK

23h 20m2 stops

2:05 am - 12:44 pm

BKK

PDX

25h 39m2 stops

$838Korean Air

Wed, Jan 21 - Tue, Jan 27

Singapore Airlines flights from Portland to Bangkok

Our best Singapore Airlines deals on Portland to Bangkok flight tickets

Singapore Airlines

Mar 31

PDX6:00 amPortland

24h 00m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Apr 14

BKK8:10 pmBangkok Suvarnabhumi

31h 40m

2 stops

PDX1:50 pmPortland

$793

Find similar

Singapore Airlines

Feb 2

PDX9:30 pmPortland

31h 30m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Mar 17

BKK8:00 pmBangkok Suvarnabhumi

31h 50m

2 stops

PDX1:50 pmPortland

$823

Find similar

Singapore Airlines

Feb 10

PDX5:50 pmPortland

29h 45m

2 stops

BKK2:35 pmBangkok Suvarnabhumi

Feb 24

BKK12:00 pmBangkok Suvarnabhumi

36h 35m

2 stops

PDX9:35 amPortland

$836

Find similar

STARLUX Airlines flights from Portland to Bangkok

Our best STARLUX Airlines deals on Portland to Bangkok flight tickets

STARLUX Airlines

Jan 18

PDX5:35 pmPortland

31h 55m

2 stops

BKK4:30 pmBangkok Suvarnabhumi

Feb 5

BKK5:40 pmBangkok Suvarnabhumi

42h 07m

2 stops

PDX8:47 pmPortland

$811

Find similar

STARLUX Airlines

Jan 12

PDX5:35 pmPortland

31h 55m

2 stops

BKK4:30 pmBangkok Suvarnabhumi

Jan 24

BKK5:40 pmBangkok Suvarnabhumi

42h 07m

2 stops

PDX8:47 pmPortland

$826

Find similar

STARLUX Airlines

Jan 18

PDX5:35 pmPortland

31h 55m

2 stops

BKK4:30 pmBangkok Suvarnabhumi

Jan 31

BKK5:40 pmBangkok Suvarnabhumi

42h 07m

2 stops

PDX8:47 pmPortland

$830

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/31

6:00 am-8:00 pm

2 stops24h 00m

Bangkok Suvarnabhumi

Tue 4/14

8:10 pm-1:50 pm

2 stops31h 40m

$793

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 1/18

5:35 pm-4:30 pm

2 stops31h 55m

Bangkok Suvarnabhumi

Thu 2/5

5:40 pm-8:47 pm

2 stops42h 07m

$811

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 2/9

9:50 am-11:05 pm

2 stops22h 15m

Bangkok Suvarnabhumi

Mon 2/16

10:40 am-6:30 pm

2 stops22h 50m

$817

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 2/19

7:15 am-12:55 am

2 stops26h 40m

Bangkok Suvarnabhumi

Sun 2/22

2:05 am-12:42 pm

2 stops25h 37m

$821

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 2/2

9:30 pm-8:00 pm

2 stops31h 30m

Bangkok Suvarnabhumi

Tue 3/17

8:00 pm-1:50 pm

2 stops31h 50m

$823

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/12

5:35 pm-4:30 pm

2 stops31h 55m

Bangkok Suvarnabhumi

Sat 1/24

5:40 pm-8:47 pm

2 stops42h 07m

$826

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 1/18

5:35 pm-4:30 pm

2 stops31h 55m

Bangkok Suvarnabhumi

Sat 1/31

5:40 pm-8:47 pm

2 stops42h 07m

$830

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 1/23

5:51 pm-4:30 pm

2 stops31h 39m

Bangkok Suvarnabhumi

Thu 2/5

1:45 pm-8:47 pm

2 stops22h 02m

$831

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/10

5:50 pm-2:35 pm

2 stops29h 45m

Bangkok Suvarnabhumi

Tue 2/24

12:00 pm-9:35 am

2 stops36h 35m

$836

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 1/21

7:10 am-9:30 pm

2 stops23h 20m

Bangkok Suvarnabhumi

Tue 1/27

2:05 am-12:44 pm

2 stops25h 39m

$838

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 Bangkok

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 Bangkok?

If you aren’t able to travel during the month of October, then book flights to Bangkok from Portland during August instead. Flights to Bangkok in August, while not as cheap as those in October, still average around $958.

What is the cheapest day to depart on your flight to Bangkok?

On average, the least expensive day to fly to Bangkok from Portland is on a Monday. momondo users have found tickets for Monday departures for as low as $1,127. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Portland to Bangkok on a Friday will generally be more expensive and average around $1,440. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Bangkok?

According to our data, the cheapest time of day to fly to Bangkok is in the evening. momondo users have found flights departing from Portland to Bangkok in the evening for as low as $1,137. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $1,989. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Bangkok from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,098 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok from Portland for as low as $932 on momondo.

Cheap Portland to Bangkok flight deals and tips

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

Fastest flight time	21h 15m
Direct flights	None

The fastest flight from Portland to Bangkok takes 21h 15m

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

Search flight deals

How far is Portland to Bangkok by plane?
The distance between Portland and Bangkok is about 7529.0 mi. 21h 15m is a normal flight duration for this route.
When did momondo last update prices for flights from Portland Airport to Bangkok?
Prices for flights from Portland Airport to Bangkok are updated daily.
How many operators does momondo search for flights from Portland Airport to Bangkok?
As of December 2025, there are 12 operators available to choose from for flights from Portland Airport to Bangkok.
How old do you have to be to fly from Portland Airport to Bangkok?
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 Bangkok.
What documentation or ID do you need to fly to Bangkok?
The travel and health documents required for your trip to Bangkok 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 Bangkok. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Bangkok

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $202	Free Cancellation	Rating 7.9 8,015 reviews	Search Delta flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.1 1,417 reviews	Search Singapore Airlines flights
STARLUX Airlines	PriceFrom $775	Free Cancellation	Rating 8.9 248 reviews	Search STARLUX Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,660 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 792 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.4 1,040 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,185 reviews	Search Korean Air flights
United Airlines	PriceFrom $821	Free Cancellation	Rating 7.4 9,106 reviews	Search United Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,686 reviews	Search Qatar Airways flights
EVA Air	PriceFrom $920	Free Cancellation	Rating 8.4 1,298 reviews	Search EVA Air flights

Why use momondo?

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

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

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

All flight searches from Portland to Bangkok on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Bangkok?

Once all potential Portland to Bangkok 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 Bangkok right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.