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

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

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 45% of people opting to fly with this airline when traveling to Bangkok. Keep in mind that there are 11 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 June 2026, there are 11 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.

$447 Cheap Flights from Portland to Bangkok in 2026

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 $1,642 to $1,123. The lowest price recently found on this route was $881.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Bangkok

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:06 am - 8:00 pm

PDX

BKK

23h 54m

2 stops

8:00 pm - 11:19 am

BKK

PDX

30h 19m

2 stops

$881Multiple Airlines

Tue, Oct 27 - Tue, Nov 17

6:00 pm - 11:00 am

PDX

BKK

27h 00m

2 stops

9:15 pm - 1:27 pm

BKK

PDX

30h 12m

2 stops

$915Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

2:34 pm - 8:05 am

PDX

BKK

27h 31m

2 stops

12:00 pm - 11:54 pm

BKK

PDX

26h 54m

2 stops

$948Multiple Airlines

Sun, Oct 18 - Fri, Dec 11

5:55 pm - 12:20 pm

PDX

BKK

28h 25m

2 stops

3:30 pm - 10:50 am

BKK

PDX

33h 20m

2 stops

$949Multiple Airlines

Tue, Sep 22 - Sun, Sep 27

6:00 pm - 2:35 pm

PDX

BKK

29h 35m

2 stops

9:10 pm - 12:22 pm

BKK

PDX

30h 12m

2 stops

$964Multiple Airlines

Wed, Nov 4 - Thu, Dec 3

2:45 pm - 8:25 am

PDX

BKK

26h 40m

2 stops

8:00 pm - 12:22 pm

BKK

PDX

31h 22m

2 stops

$965Singapore Airlines

Wed, Nov 4 - Thu, Dec 3

9:29 pm - 8:00 pm

PDX

BKK

32h 31m

2 stops

9:10 pm - 1:30 pm

BKK

PDX

31h 20m

2 stops

$971Multiple Airlines

Sat, Oct 31 - Tue, Nov 10

5:00 pm - 12:20 pm

PDX

BKK

29h 20m

2 stops

12:15 pm - 9:31 am

BKK

PDX

35h 16m

2 stops

$973Multiple Airlines

Mon, Oct 5 - Tue, Oct 20

5:00 pm - 12:20 pm

PDX

BKK

29h 20m

2 stops

12:15 pm - 10:50 am

BKK

PDX

36h 35m

2 stops

$974Multiple Airlines

Mon, Oct 5 - Tue, Oct 20

9:30 pm - 8:00 pm

PDX

BKK

31h 30m

2 stops

8:00 pm - 12:22 pm

BKK

PDX

31h 22m

2 stops

$979Singapore Airlines

Thu, Nov 12 - Thu, Dec 10

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Singapore Airlines flights from Portland to Bangkok

Our best Singapore Airlines deals on Portland to Bangkok flight tickets

Singapore Airlines

Nov 4

PDX2:45 pmPortland

26h 40m

2 stops

BKK8:25 amBangkok Suvarnabhumi

Dec 3

BKK8:00 pmBangkok Suvarnabhumi

31h 22m

2 stops

PDX12:22 pmPortland

$965

Singapore Airlines

Nov 12

PDX9:30 pmPortland

31h 30m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Dec 10

BKK8:00 pmBangkok Suvarnabhumi

31h 22m

2 stops

PDX12:22 pmPortland

$979

Singapore Airlines

Sep 11

PDX5:55 pmPortland

27h 05m

2 stops

BKK11:00 amBangkok Suvarnabhumi

Sep 18

BKK8:15 pmBangkok Suvarnabhumi

31h 35m

2 stops

PDX1:50 pmPortland

$1,025

Qatar Airways flights from Portland to Bangkok

Our best Qatar Airways deals on Portland to Bangkok flight tickets

Qatar Airways

Sep 1

PDX11:48 amPortland

28h 32m

2 stops

BKK6:20 amBangkok Suvarnabhumi

Sep 7

BKK2:30 amBangkok Suvarnabhumi

28h 20m

2 stops

PDX4:50 pmPortland

$1,010

Qatar Airways

Aug 27

PDX1:59 pmPortland

26h 21m

2 stops

BKK6:20 amBangkok Suvarnabhumi

Sep 9

BKK2:30 amBangkok Suvarnabhumi

33h 31m

2 stops

PDX10:01 pmPortland

$1,011

Qatar Airways

Sep 1

PDX11:48 amPortland

29h 27m

2 stops

BKK7:15 amBangkok Suvarnabhumi

Sep 28

BKK3:00 amBangkok Suvarnabhumi

27h 50m

2 stops

PDX4:50 pmPortland

$1,017

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 10/27

6:06 am-8:00 pm

2 stops23h 54m

Bangkok Suvarnabhumi

Tue 11/17

8:00 pm-11:19 am

2 stops30h 19m

$881

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 10/14

6:00 pm-11:00 am

2 stops27h 00m

Bangkok Suvarnabhumi

Wed 10/21

9:15 pm-1:27 pm

2 stops30h 12m

$915

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 10/18

2:34 pm-8:05 am

2 stops27h 31m

Bangkok Suvarnabhumi

Fri 12/11

12:00 pm-11:54 pm

2 stops26h 54m

$948

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/22

5:55 pm-12:20 pm

2 stops28h 25m

Bangkok Suvarnabhumi

Sun 9/27

3:30 pm-10:50 am

2 stops33h 20m

$949

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 11/4

6:00 pm-2:35 pm

2 stops29h 35m

Bangkok Suvarnabhumi

Thu 12/3

9:10 pm-12:22 pm

2 stops30h 12m

$964

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 11/4

2:45 pm-8:25 am

2 stops26h 40m

Bangkok Suvarnabhumi

Thu 12/3

8:00 pm-12:22 pm

2 stops31h 22m

$965

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 10/31

9:29 pm-8:00 pm

2 stops32h 31m

Bangkok Suvarnabhumi

Tue 11/10

9:10 pm-1:30 pm

2 stops31h 20m

$971

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 10/5

5:00 pm-12:20 pm

2 stops29h 20m

Bangkok Suvarnabhumi

Tue 10/20

12:15 pm-9:31 am

2 stops35h 16m

$973

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 10/5

5:00 pm-12:20 pm

2 stops29h 20m

Bangkok Suvarnabhumi

Tue 10/20

12:15 pm-10:50 am

2 stops36h 35m

$974

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 11/12

9:30 pm-8:00 pm

2 stops31h 30m

Bangkok Suvarnabhumi

Thu 12/10

8:00 pm-12:22 pm

2 stops31h 22m

$979

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 January, then book flights to Bangkok from Portland during April instead. Flights to Bangkok in April, while not as cheap as those in January, still average around $139.

How far in advance should I book a flight from Portland 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 $1,084 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 $962 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	24h 00m
Direct flights	None

The fastest flight from Portland to Bangkok takes 24h 00m

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

Search flight deals

Frequently asked questions about flying from Portland to Bangkok

How far is Portland to Bangkok by plane?
The distance between Portland and Bangkok is about 7529.0 mi. 24h 00m 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 June 2026, there are 11 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 $139	Free Cancellation	Rating 7.9 8,393 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,369 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 331 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,539 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,836 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 828 reviews	Search China Airlines flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
ANA	PriceFrom $818	Free Cancellation	Rating 8.3 1,230 reviews	Search ANA flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 9,801 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,470 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.

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Cheap flights from Portland to Bangkok from $447

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Bangkok departing on 9/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Singapore Airlines flights from Portland to Bangkok

Our best Singapore Airlines deals on Portland to Bangkok flight tickets

Qatar Airways flights from Portland to Bangkok

Our best Qatar Airways deals on Portland to Bangkok flight tickets

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See travel insights to Bangkok from

How to get the cheapest flight ticket from Portland to Bangkok

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

What is the cheapest month to fly to Bangkok?

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

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

What airlines fly to Bangkok?

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

Direct flights

Frequently asked questions about flying from Portland to Bangkok

Best airlines flying from Portland to Bangkok

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

Why use momondo?

An easier way to manage your Bangkok trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

Fly into one of these airports located in Bangkok

Airports listed have a maximum distance of 15.4 mi from Bangkok

Fly your favorite airline to Bangkok

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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