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

STARLUX Airlines, Philippine Airlines, and United Airlines are the most popular carriers operating from Portland to Bangkok

What airlines fly to Bangkok?

Air Canada, STARLUX Airlines and Korean Air 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 48% 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 November 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.

$366 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 $874 to $1,230. The lowest price recently found on this route was $780.

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:30 pm - 12:35 pmPDX-BKK

28h 05m2 stops

1:45 pm - 5:59 pmBKK-PDX

19h 14m2 stops

$778STARLUX Airlines

Find Deal

seg, fev 16 - seg, mar 2

9:30 pm - 4:45 pmPDX-BKK

52h 15m2 stops

2:35 am - 9:35 amBKK-PDX

46h 00m2 stops

$780China Airlines

Find Deal

sex, jan 23 - sáb, jan 31

5:41 pm - 9:50 amPDX-BKK

25h 09m2 stops

10:55 am - 9:36 amBKK-PDX

37h 41m2 stops

$781China Airlines

Find Deal

qui, dez 4 - ter, dez 16

5:51 pm - 4:30 pmPDX-BKK

31h 39m2 stops

5:40 pm - 9:47 amBKK-PDX

31h 07m2 stops

$783Multiple Airlines

Find Deal

qua, jan 14 - qua, fev 18

5:35 pm - 4:30 pmPDX-BKK

31h 55m2 stops

1:45 pm - 8:47 pmBKK-PDX

22h 02m2 stops

$788STARLUX Airlines

Find Deal

sex, jan 23 - sex, fev 6

5:30 pm - 1:05 pmPDX-BKK

28h 35m2 stops

2:40 am - 9:32 amBKK-PDX

44h 52m2 stops

$789Multiple Airlines

Find Deal

dom, mar 1 - ter, abr 14

10:35 am - 8:25 amPDX-BKK

30h 50m2 stops

9:10 pm - 12:36 pmBKK-PDX

29h 26m2 stops

$790Singapore Airlines

Find Deal

dom, mar 1 - qua, mar 11

5:51 pm - 9:50 amPDX-BKK

24h 59m2 stops

2:35 am - 4:49 pmBKK-PDX

53h 14m2 stops

$791China Airlines

Find Deal

ter, jan 27 - seg, fev 9

2:45 pm - 12:35 pmPDX-BKK

30h 50m2 stops

5:40 pm - 5:59 pmBKK-PDX

39h 19m2 stops

$792STARLUX Airlines

Find Deal

ter, fev 17 - dom, mar 1

2:57 pm - 8:25 amPDX-BKK

26h 28m2 stops

9:10 pm - 4:50 pmBKK-PDX

34h 40m2 stops

$824Singapore Airlines

Find Deal

sex, jan 23 - dom, fev 1

China Airlines flights from Portland to Bangkok

Our best China Airlines deals on Portland to Bangkok flight tickets

China Airlines

Jan 23

PDX9:30 pmPortland

52h 15m

2 stops

BKK4:45 pmBangkok Suvarnabhumi

Jan 31

BKK2:35 amBangkok Suvarnabhumi

46h 00m

2 stops

PDX9:35 amPortland

$780

Find similar

China Airlines

Dec 4

PDX5:41 pmPortland

25h 09m

2 stops

BKK9:50 amBangkok Suvarnabhumi

Dec 16

BKK10:55 amBangkok Suvarnabhumi

37h 41m

2 stops

PDX9:36 amPortland

$781

Find similar

China Airlines

Jan 27

PDX5:51 pmPortland

24h 59m

2 stops

BKK9:50 amBangkok Suvarnabhumi

Feb 9

BKK2:35 amBangkok Suvarnabhumi

53h 14m

2 stops

PDX4:49 pmPortland

$791

Find similar

Singapore Airlines flights from Portland to Bangkok

Our best Singapore Airlines deals on Portland to Bangkok flight tickets

Singapore Airlines

Mar 1

PDX10:35 amPortland

30h 50m

2 stops

BKK8:25 amBangkok Suvarnabhumi

Mar 11

BKK9:10 pmBangkok Suvarnabhumi

29h 26m

2 stops

PDX12:36 pmPortland

$790

Find similar

Singapore Airlines

Jan 23

PDX2:57 pmPortland

26h 28m

2 stops

BKK8:25 amBangkok Suvarnabhumi

Feb 1

BKK9:10 pmBangkok Suvarnabhumi

34h 40m

2 stops

PDX4:50 pmPortland

$824

Find similar

Singapore Airlines

Jan 23

PDX10:52 amPortland

30h 33m

2 stops

BKK8:25 amBangkok Suvarnabhumi

Feb 1

BKK8:00 pmBangkok Suvarnabhumi

35h 49m

3 stops

PDX4:49 pmPortland

$833

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

seg 2/16

5:30 pm-12:35 pm

2 stops28h 05m

Bangkok Suvarnabhumi

seg 3/2

1:45 pm-5:59 pm

2 stops19h 14m

$778

PortlandBangkok

PDX - BKK

PDXBKK

Portland

sex 1/23

9:30 pm-4:45 pm

2 stops52h 15m

Bangkok Suvarnabhumi

sáb 1/31

2:35 am-9:35 am

2 stops46h 00m

$780

PortlandBangkok

PDX - BKK

PDXBKK

Portland

qui 12/4

5:41 pm-9:50 am

2 stops25h 09m

Bangkok Suvarnabhumi

ter 12/16

10:55 am-9:36 am

2 stops37h 41m

$781

PortlandBangkok

PDX - BKK

PDXBKK

Portland

qua 1/14

5:51 pm-4:30 pm

2 stops31h 39m

Bangkok Suvarnabhumi

qua 2/18

5:40 pm-9:47 am

2 stops31h 07m

$783

PortlandBangkok

PDX - BKK

PDXBKK

Portland

sex 1/23

5:35 pm-4:30 pm

2 stops31h 55m

Bangkok Suvarnabhumi

sex 2/6

1:45 pm-8:47 pm

2 stops22h 02m

$788

PortlandBangkok

PDX - BKK

PDXBKK

Portland

dom 3/1

5:30 pm-1:05 pm

2 stops28h 35m

Bangkok Suvarnabhumi

ter 4/14

2:40 am-9:32 am

2 stops44h 52m

$789

PortlandBangkok

PDX - BKK

PDXBKK

Portland

dom 3/1

10:35 am-8:25 am

2 stops30h 50m

Bangkok Suvarnabhumi

qua 3/11

9:10 pm-12:36 pm

2 stops29h 26m

$790

PortlandBangkok

PDX - BKK

PDXBKK

Portland

ter 1/27

5:51 pm-9:50 am

2 stops24h 59m

Bangkok Suvarnabhumi

seg 2/9

2:35 am-4:49 pm

2 stops53h 14m

$791

PortlandBangkok

PDX - BKK

PDXBKK

Portland

ter 2/17

2:45 pm-12:35 pm

2 stops30h 50m

Bangkok Suvarnabhumi

dom 3/1

5:40 pm-5:59 pm

2 stops39h 19m

$792

PortlandBangkok

PDX - BKK

PDXBKK

Portland

sex 1/23

2:57 pm-8:25 am

2 stops26h 28m

Bangkok Suvarnabhumi

dom 2/1

9:10 pm-4:50 pm

2 stops34h 40m

$824

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 September, then book flights to Bangkok from Portland during October instead. Flights to Bangkok in October, while not as cheap as those in September, still average around $957.

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 $1,091 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 $934 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

Direct flights	None

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 November 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 8,004 reviews	Search Delta flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,604 reviews	Search Japan Airlines flights
STARLUX Airlines	PriceFrom $777	Free Cancellation	Rating 8.9 219 reviews	Search STARLUX Airlines flights
ANA	PriceFrom $793	Free Cancellation	Rating 8.4 1,003 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,160 reviews	Search Korean Air flights
United Airlines	PriceFrom $817	Free Cancellation	Rating 7.4 9,003 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $820	Free Cancellation	Rating 8.1 1,391 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $835	Free Cancellation	Rating 8.3 777 reviews	Search China Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,661 reviews	Search Qatar Airways flights
Air Canada	PriceFrom $928	Free Cancellation	Rating 7.1 10,410 reviews	Search Air Canada 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.