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 46% 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 $984.

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.

7:40 pm - 12:10 pm

PDX

BKK

26h 30m

2 stops

7:00 am - 7:06 pm

BKK

PDX

26h 06m

2 stops

$984Multiple Airlines

Tue, Sep 22 - Tue, Oct 6

3:33 pm - 4:40 pm

PDX

BKK

35h 07m

2 stops

5:50 pm - 10:50 am

BKK

PDX

31h 00m

2 stops

$995STARLUX Airlines

Tue, Sep 8 - Sun, Sep 13

5:38 pm - 12:00 pm

PDX

BKK

28h 22m

2 stops

5:50 pm - 9:25 am

BKK

PDX

29h 35m

2 stops

$997STARLUX Airlines

Thu, Aug 27 - Thu, Sep 10

7:00 am - 11:55 pm

PDX

BKK

26h 55m

2 stops

9:35 pm - 2:47 pm

BKK

PDX

31h 12m

2 stops

$998ANA

Wed, Aug 5 - Tue, Sep 1

5:35 am - 5:10 am

PDX

BKK

32h 35m

2 stops

9:10 am - 12:54 am

BKK

PDX

30h 44m

2 stops

$999United Airlines

Tue, Dec 1 - Tue, Dec 15

5:00 pm - 12:35 pm

PDX

BKK

28h 35m

2 stops

1:45 pm - 11:54 pm

BKK

PDX

25h 09m

2 stops

$1,000Multiple Airlines

Tue, Nov 10 - Tue, Feb 23

7:00 am - 4:40 pm

PDX

BKK

43h 40m

2 stops

1:10 pm - 9:25 am

BKK

PDX

34h 15m

2 stops

$1,001STARLUX Airlines

Sun, Aug 16 - Sun, Aug 30

7:30 am - 12:20 am

PDX

BKK

25h 50m

2 stops

9:10 am - 12:54 am

BKK

PDX

30h 44m

2 stops

$1,002United Airlines

Sun, Nov 15 - Mon, Jan 25

5:15 am - 12:20 am

PDX

BKK

28h 05m

2 stops

7:10 am - 8:33 pm

BKK

PDX

28h 23m

2 stops

$1,003United Airlines

Fri, Nov 27 - Mon, Dec 7

1:14 pm - 9:35 am

PDX

BKK

30h 21m

3 stops

7:00 am - 10:45 pm

BKK

PDX

29h 45m

2 stops

$1,005United Airlines

Wed, Aug 5 - Mon, Aug 31

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ANA flights from Portland to Bangkok

Our best ANA deals on Portland to Bangkok flight tickets

ANA

Aug 5

PDX7:00 amPortland

26h 55m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 1

BKK9:35 pmBangkok Suvarnabhumi

31h 12m

2 stops

PDX2:47 pmPortland

$998

ANA

Aug 7

PDX8:35 amPortland

25h 20m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 1

BKK1:55 pmBangkok Suvarnabhumi

38h 52m

2 stops

PDX2:47 pmPortland

$1,037

ANA

Sep 4

PDX9:00 amPortland

54h 55m

2 stops

BKK5:55 amBangkok Suvarnabhumi

Sep 20

BKK1:55 pmBangkok Suvarnabhumi

38h 41m

2 stops

PDX2:36 pmPortland

$1,040

United Airlines flights from Portland to Bangkok

Our best United Airlines deals on Portland to Bangkok flight tickets

United Airlines

Aug 27

PDX7:00 amPortland

31h 35m

2 stops

BKK4:35 amBangkok Suvarnabhumi

Sep 10

BKK9:35 amBangkok Suvarnabhumi

46h 44m

2 stops

PDX6:19 pmPortland

$999

United Airlines

Sep 2

PDX7:00 amPortland

31h 35m

2 stops

BKK4:35 amBangkok Suvarnabhumi

Sep 22

BKK7:00 amBangkok Suvarnabhumi

27h 21m

2 stops

PDX8:21 pmPortland

$1,000

United Airlines

Aug 9

PDX5:15 amPortland

28h 40m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 9

BKK9:35 amBangkok Suvarnabhumi

43h 12m

2 stops

PDX2:47 pmPortland

$1,002

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/22

7:40 pm-12:10 pm

2 stops26h 30m

Bangkok Suvarnabhumi

Tue 10/6

7:00 am-7:06 pm

2 stops26h 06m

$984

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/8

3:33 pm-4:40 pm

2 stops35h 07m

Bangkok Suvarnabhumi

Sun 9/13

5:50 pm-10:50 am

2 stops31h 00m

$995

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/27

5:38 pm-12:00 pm

2 stops28h 22m

Bangkok Suvarnabhumi

Thu 9/10

5:50 pm-9:25 am

2 stops29h 35m

$997

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 8/5

7:00 am-11:55 pm

2 stops26h 55m

Bangkok Suvarnabhumi

Tue 9/1

9:35 pm-2:47 pm

2 stops31h 12m

$998

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 12/1

5:35 am-5:10 am

2 stops32h 35m

Bangkok Suvarnabhumi

Tue 12/15

9:10 am-12:54 am

2 stops30h 44m

$999

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 11/10

5:00 pm-12:35 pm

2 stops28h 35m

Bangkok Suvarnabhumi

Tue 2/23

1:45 pm-11:54 pm

2 stops25h 09m

$1,000

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 8/16

7:00 am-4:40 pm

2 stops43h 40m

Bangkok Suvarnabhumi

Sun 8/30

1:10 pm-9:25 am

2 stops34h 15m

$1,001

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 11/15

7:30 am-12:20 am

2 stops25h 50m

Bangkok Suvarnabhumi

Mon 1/25

9:10 am-12:54 am

2 stops30h 44m

$1,002

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 11/27

5:15 am-12:20 am

2 stops28h 05m

Bangkok Suvarnabhumi

Mon 12/7

7:10 am-8:33 pm

2 stops28h 23m

$1,003

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 8/5

1:14 pm-9:35 am

3 stops30h 21m

Bangkok Suvarnabhumi

Mon 8/31

7:00 am-10:45 pm

2 stops29h 45m

$1,005

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 $1,086 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	21h 45m
Direct flights	None

The fastest flight from Portland to Bangkok takes 21h 45m

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

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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. 21h 45m 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 8,401 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,380 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 339 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,545 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,839 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 829 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 1,236 reviews	Search ANA flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 9,841 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,474 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 9/8. 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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ANA flights from Portland to Bangkok

Our best ANA deals on Portland to Bangkok flight tickets

United Airlines flights from Portland to Bangkok

Our best United Airlines 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

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