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

United Airlines, ANA, and Delta are the most popular carriers operating from Portland to Bangkok

What airlines fly to Bangkok?

Air Canada, STARLUX Airlines and Japan 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 59% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 13 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 August 2025, there are 13 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.

$363 Cheap Flights from Portland to Bangkok in 2025

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 $903 to $1,051. The lowest price recently found on this route was $840.

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Find the cheapest flights from Portland to Bangkok

Round-trip

One-way

Last minute

Cheap round-trip flights

9:17 am - 12:45 amPDX-BKK

24h 28m2 stops

11:15 pm - 7:11 pmBKK-PDX

34h 56m2 stops

$840Delta

Find Deal

Sun, Nov 2 - Thu, Mar 5

6:00 am - 11:20 pmPDX-BKK

27h 20m2 stops

9:30 pm - 7:29 pmBKK-PDX

36h 59m2 stops

$846Korean Air

Find Deal

Sat, Nov 1 - Thu, Mar 5

7:45 am - 11:55 pmPDX-BKK

26h 10m2 stops

9:35 am - 2:42 pmBKK-PDX

43h 07m2 stops

$849United Airlines

Find Deal

Sun, Aug 31 - Sun, Sep 7

1:25 pm - 12:15 pmPDX-BKK

32h 50m2 stops

1:30 pm - 12:18 amBKK-PDX

24h 48m2 stops

$850

Find Deal

Sun, Oct 12 - Wed, Oct 22

7:30 am - 12:05 amPDX-BKK

25h 35m2 stops

7:10 am - 6:41 pmBKK-PDX

26h 31m2 stops

$852United Airlines

Find Deal

Mon, Dec 1 - Thu, Dec 11

8:50 pm - 4:40 pmPDX-BKK

29h 50m2 stops

1:45 pm - 10:40 pmBKK-PDX

23h 55m2 stops

$854STARLUX Airlines

Find Deal

Mon, Oct 6 - Wed, Nov 5

5:47 pm - 12:00 pmPDX-BKK

28h 13m2 stops

1:10 pm - 10:47 pmBKK-PDX

23h 37m2 stops

$855STARLUX Airlines

Find Deal

Sat, Sep 13 - Sat, Sep 20

5:55 pm - 9:50 amPDX-BKK

25h 55m2 stops

2:05 pm - 6:18 amBKK-PDX

31h 13m2 stops

$861China Airlines

Find Deal

Sat, Nov 1 - Mon, Dec 8

5:30 pm - 4:45 pmPDX-BKK

32h 15m2 stops

5:50 pm - 6:17 amBKK-PDX

27h 27m2 stops

$870China Airlines

Find Deal

Mon, Nov 3 - Sun, Nov 16

8:00 am - 5:05 amPDX-BKK

30h 05m2 stops

8:05 am - 1:46 pmBKK-PDX

20h 41m2 stops

$901Japan Airlines

Find Deal

Tue, Dec 2 - Fri, Jan 16

China Airlines flights from Portland to Bangkok

Our best China Airlines deals on Portland to Bangkok flight tickets

China Airlines

Nov 1

PDX5:55 pmPortland

25h 55m

2 stops

BKK9:50 amBangkok Suvarnabhumi

Dec 8

BKK2:05 pmBangkok Suvarnabhumi

31h 13m

2 stops

PDX6:18 amPortland

$861

Find similar

China Airlines

Nov 3

PDX5:30 pmPortland

32h 15m

2 stops

BKK4:45 pmBangkok Suvarnabhumi

Nov 16

BKK5:50 pmBangkok Suvarnabhumi

27h 27m

2 stops

PDX6:17 amPortland

$870

Find similar

China Airlines

Nov 4

PDX5:30 pmPortland

28h 35m

2 stops

BKK1:05 pmBangkok Suvarnabhumi

Mar 3

BKK2:35 amBangkok Suvarnabhumi

46h 12m

2 stops

PDX9:47 amPortland

$881

Find similar

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets

United Airlines

Aug 31

PDX7:45 amPortland

26h 10m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 7

BKK9:35 amBangkok Suvarnabhumi

43h 07m

2 stops

PDX2:42 pmPortland

$849

Find similar

United Airlines

Dec 1

PDX7:30 amPortland

25h 35m

2 stops

BKK12:05 amBangkok Suvarnabhumi

Dec 11

BKK7:10 amBangkok Suvarnabhumi

26h 31m

2 stops

PDX6:41 pmPortland

$852

Find similar

United Airlines

Dec 29

PDX7:45 pmPortland

48h 40m

2 stops

BKK11:25 amBangkok Suvarnabhumi

Jan 27

BKK9:25 amBangkok Suvarnabhumi

29h 54m

3 stops

PDX12:19 amPortland

$859

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 11/2

9:17 am-12:45 am

2 stops24h 28m

Bangkok Suvarnabhumi

Thu 3/5

11:15 pm-7:11 pm

2 stops34h 56m

$840

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 11/1

6:00 am-11:20 pm

2 stops27h 20m

Bangkok Suvarnabhumi

Thu 3/5

9:30 pm-7:29 pm

2 stops36h 59m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 8/31

7:45 am-11:55 pm

2 stops26h 10m

Bangkok Suvarnabhumi

Sun 9/7

9:35 am-2:42 pm

2 stops43h 07m

$849

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 10/12

1:25 pm-12:15 pm

2 stops32h 50m

Bangkok Suvarnabhumi

Wed 10/22

1:30 pm-12:18 am

2 stops24h 48m

$850

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 12/1

7:30 am-12:05 am

2 stops25h 35m

Bangkok Suvarnabhumi

Thu 12/11

7:10 am-6:41 pm

2 stops26h 31m

$852

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 10/6

8:50 pm-4:40 pm

2 stops29h 50m

Bangkok Suvarnabhumi

Wed 11/5

1:45 pm-10:40 pm

2 stops23h 55m

$854

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 9/13

5:47 pm-12:00 pm

2 stops28h 13m

Bangkok Suvarnabhumi

Sat 9/20

1:10 pm-10:47 pm

2 stops23h 37m

$855

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 11/1

5:55 pm-9:50 am

2 stops25h 55m

Bangkok Suvarnabhumi

Mon 12/8

2:05 pm-6:18 am

2 stops31h 13m

$861

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/3

5:30 pm-4:45 pm

2 stops32h 15m

Bangkok Suvarnabhumi

Sun 11/16

5:50 pm-6:17 am

2 stops27h 27m

$870

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 12/2

8:00 am-5:05 am

2 stops30h 05m

Bangkok Suvarnabhumi

Fri 1/16

8:05 am-1:46 pm

2 stops20h 41m

$901

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 August, then book flights to Bangkok from Portland during September instead. Flights to Bangkok in September, while not as cheap as those in August, still average around $961.

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 $1,118 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 $1,036 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

Best Price Found	$363
Fastest flight time	20h 30m
Direct flights	None
Airports in Bangkok	2 airports

The best one-way flight to Bangkok from Portland in the past 72 hours is $363. The best round-trip flight deal from Portland to Bangkok found on momondo in the last 72 hours is $840.

The fastest flight from Portland to Bangkok takes 20h 30m

There are no direct flights from Portland to Bangkok. Popular non-direct routes for this connection are Portland Airport - Bangkok Don Mueang Intl Airport and Portland Airport - Bangkok Suvarnabhumi Airport.

There are 2 airports near Bangkok: Bangkok Suvarnabhumi (BKK), Bangkok Don Mueang Intl (DMK)

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How far is Portland to Bangkok by plane?
The distance between Portland and Bangkok is about 7529.0 mi. 22h 55m 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 August 2025, there are 13 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 8.0 7,981 reviews	Search Delta flights
China Eastern	PriceFrom $750	Free Cancellation	Rating 7.2 160 reviews	Search China Eastern flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,131 reviews	Search Korean Air flights
ANA	PriceFrom $796	Free Cancellation	Rating 8.4 934 reviews	Search ANA flights
Singapore Airlines	PriceFrom $820	Free Cancellation	Rating 8.1 1,347 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $837	Free Cancellation	Rating 8.3 764 reviews	Search China Airlines flights
STARLUX Airlines	PriceFrom $845	Free Cancellation	Rating 9.0 206 reviews	Search STARLUX Airlines flights
United Airlines	PriceFrom $852	Free Cancellation	Rating 7.4 8,925 reviews	Search United Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,609 reviews	Search Qatar Airways flights
Japan Airlines	PriceFrom $924	Free Cancellation	Rating 8.3 1,549 reviews	Search Japan Airlines 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.