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 41% 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.

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

Philippine Airlines is the most popular carrier operating from Portland to Bangkok

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.

$368 Cheap Flights from Portland to Bangkok in 2025/26

Q: What is the typical price of a round-trip flight between Portland and Bangkok?

Prices are currently low for flights on this route. Typical prices usually range from $1,127 to $2,182. The lowest price recently found on this route was $784.

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Find the cheapest flights from Portland to Bangkok

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Cheap round-trip flights

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7:10 am - 12:45 am

PDX

BKK

26h 35m2 stops

12:55 am - 12:44 pm

BKK

PDX

26h 49m2 stops

$784Korean Air

Thu, Jan 22 - Wed, Feb 4

9:19 pm - 8:00 pm

PDX

BKK

31h 41m2 stops

12:00 pm - 8:35 am

BKK

PDX

35h 35m2 stops

$786Singapore Airlines

Wed, Feb 25 - Sun, Mar 8

9:19 pm - 8:00 pm

PDX

BKK

31h 41m2 stops

3:50 pm - 9:35 am

BKK

PDX

32h 45m2 stops

$787Singapore Airlines

Wed, Feb 25 - Wed, Mar 4

7:57 pm - 8:00 pm

PDX

BKK

34h 03m2 stops

3:50 pm - 1:19 pm

BKK

PDX

35h 29m2 stops

$796Singapore Airlines

Mon, Mar 9 - Tue, Mar 17

9:19 pm - 8:00 pm

PDX

BKK

31h 41m2 stops

8:00 pm - 10:46 am

BKK

PDX

29h 46m2 stops

$799Singapore Airlines

Wed, Feb 25 - Thu, Mar 5

5:35 pm - 9:50 am

PDX

BKK

25h 15m2 stops

5:50 pm - 10:46 pm

BKK

PDX

19h 56m2 stops

$828China Airlines

Sun, Jan 18 - Thu, Feb 5

10:52 am - 1:35 am

PDX

BKK

47h 43m2 stops

5:50 pm - 8:35 am

BKK

PDX

29h 45m2 stops

$829China Airlines

Fri, Jan 23 - Sat, Mar 7

2:30 pm - 1:05 pm

PDX

BKK

31h 35m2 stops

10:55 am - 11:44 pm

BKK

PDX

27h 49m2 stops

$833China Airlines

Tue, Feb 10 - Tue, Feb 24

2:30 pm - 1:05 pm

PDX

BKK

31h 35m2 stops

1:20 pm - 9:32 am

BKK

PDX

34h 12m2 stops

$834China Airlines

Tue, Feb 10 - Thu, Apr 30

10:30 am - 8:25 am

PDX

BKK

30h 55m2 stops

12:00 pm - 8:35 am

BKK

PDX

35h 35m2 stops

$837Singapore Airlines

Sun, Mar 1 - Sun, Mar 8

Singapore Airlines flights from Portland to Bangkok

Our best Singapore Airlines deals on Portland to Bangkok flight tickets

Singapore Airlines

Feb 25

PDX9:19 pmPortland

31h 41m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Mar 10

BKK12:00 pmBangkok Suvarnabhumi

35h 35m

2 stops

PDX9:35 amPortland

$786

Find similar

Singapore Airlines

Feb 25

PDX9:19 pmPortland

31h 41m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Mar 4

BKK3:50 pmBangkok Suvarnabhumi

32h 45m

2 stops

PDX9:35 amPortland

$787

Find similar

Singapore Airlines

Feb 25

PDX9:19 pmPortland

31h 41m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Mar 5

BKK8:00 pmBangkok Suvarnabhumi

29h 46m

2 stops

PDX10:46 amPortland

$799

Find similar

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets

United Airlines

Feb 22

PDX7:57 pmPortland

42h 13m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Mar 12

BKK7:10 amBangkok Suvarnabhumi

29h 54m

2 stops

PDX11:04 pmPortland

$867

Find similar

United Airlines

Feb 2

PDX7:52 pmPortland

37h 28m

2 stops

BKK12:20 amBangkok Suvarnabhumi

Feb 10

BKK4:55 pmBangkok Suvarnabhumi

34h 38m

3 stops

PDX12:33 pmPortland

$883

Find similar

United Airlines

Feb 22

PDX7:57 pmPortland

42h 13m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Mar 10

BKK4:55 pmBangkok Suvarnabhumi

20h 09m

2 stops

PDX11:04 pmPortland

$884

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 1/22

7:10 am-12:45 am

2 stops26h 35m

Bangkok Suvarnabhumi

Wed 2/4

12:55 am-12:44 pm

2 stops26h 49m

$784

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 2/25

9:19 pm-8:00 pm

2 stops31h 41m

Bangkok Suvarnabhumi

Sun 3/8

12:00 pm-8:35 am

2 stops35h 35m

$786

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 2/25

9:19 pm-8:00 pm

2 stops31h 41m

Bangkok Suvarnabhumi

Wed 3/4

3:50 pm-9:35 am

2 stops32h 45m

$787

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/9

7:57 pm-8:00 pm

2 stops34h 03m

Bangkok Suvarnabhumi

Tue 3/17

3:50 pm-1:19 pm

2 stops35h 29m

$796

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 2/25

9:19 pm-8:00 pm

2 stops31h 41m

Bangkok Suvarnabhumi

Thu 3/5

8:00 pm-10:46 am

2 stops29h 46m

$799

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 1/18

5:35 pm-9:50 am

2 stops25h 15m

Bangkok Suvarnabhumi

Thu 2/5

5:50 pm-10:46 pm

2 stops19h 56m

$828

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 1/23

10:52 am-1:35 am

2 stops47h 43m

Bangkok Suvarnabhumi

Sat 3/7

5:50 pm-8:35 am

2 stops29h 45m

$829

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/10

2:30 pm-1:05 pm

2 stops31h 35m

Bangkok Suvarnabhumi

Tue 2/24

10:55 am-11:44 pm

2 stops27h 49m

$833

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/10

2:30 pm-1:05 pm

2 stops31h 35m

Bangkok Suvarnabhumi

Thu 4/30

1:20 pm-9:32 am

2 stops34h 12m

$834

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 3/1

10:30 am-8:25 am

2 stops30h 55m

Bangkok Suvarnabhumi

Sun 3/8

12:00 pm-8:35 am

2 stops35h 35m

$837

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 typical price of a round-trip flight between Portland and Bangkok?

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 $1,100 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 $227	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,653 reviews	Search Japan Airlines flights
STARLUX Airlines	PriceFrom $776	Free Cancellation	Rating 8.9 243 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.2 788 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.4 1,021 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,184 reviews	Search Korean Air flights
United Airlines	PriceFrom $817	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $820	Free Cancellation	Rating 8.1 1,412 reviews	Search Singapore Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,677 reviews	Search Qatar Airways flights
EVA Air	PriceFrom $920	Free Cancellation	Rating 8.4 1,296 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.