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 44% 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.

$495 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 $1,641 to $1,141. The lowest price recently found on this route was $980.

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Find the cheapest flights from Portland to Bangkok

Round-trip

One-way

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Cheap round-trip flights

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7:03 am - 12:40 am

PDX

BKK

27h 37m

2 stops

2:10 am - 4:36 pm

BKK

PDX

28h 26m

2 stops

$980Multiple Airlines

Tue, Aug 25 - Mon, Sep 7

11:48 am - 7:15 am

PDX

BKK

29h 27m

2 stops

2:30 am - 4:50 pm

BKK

PDX

28h 20m

2 stops

$1,018Qatar Airways

Wed, Aug 19 - Thu, Sep 17

11:48 am - 6:20 am

PDX

BKK

28h 32m

2 stops

2:30 am - 4:50 pm

BKK

PDX

28h 20m

2 stops

$1,020Qatar Airways

Thu, Aug 27 - Wed, Sep 9

7:00 am - 12:40 am

PDX

BKK

27h 40m

2 stops

2:10 am - 4:36 pm

BKK

PDX

28h 26m

2 stops

$1,022Multiple Airlines

Sun, Aug 9 - Tue, Sep 8

11:48 am - 12:55 pm

PDX

BKK

35h 07m

2 stops

2:30 am - 7:50 pm

BKK

PDX

31h 20m

2 stops

$1,035Multiple Airlines

Thu, Aug 27 - Wed, Sep 9

7:09 am - 6:20 am

PDX

BKK

33h 11m

2 stops

2:30 am - 6:40 pm

BKK

PDX

30h 10m

2 stops

$1,043Multiple Airlines

Thu, Aug 27 - Wed, Sep 9

9:32 pm - 9:45 am

PDX

BKK

22h 13m

2 stops

5:30 pm - 8:11 am

BKK

PDX

28h 41m

2 stops

$1,077Multiple Airlines

Sun, Aug 23 - Sat, Aug 29

8:07 am - 9:45 am

PDX

BKK

35h 38m

2 stops

10:50 am - 8:11 am

BKK

PDX

35h 21m

2 stops

$1,081Multiple Airlines

Sat, Aug 22 - Sat, Aug 29

11:48 am - 6:20 am

PDX

BKK

28h 32m

2 stops

2:30 am - 8:47 pm

BKK

PDX

32h 17m

2 stops

$1,083Multiple Airlines

Fri, Aug 21 - Thu, Sep 10

9:30 pm - 9:45 am

PDX

BKK

22h 15m

2 stops

5:30 pm - 8:11 am

BKK

PDX

28h 41m

2 stops

$1,108Multiple Airlines

Mon, Aug 17 - Mon, Aug 24

Singapore Airlines flights from Portland to Bangkok

Our best Singapore Airlines deals on Portland to Bangkok flight tickets

Singapore Airlines

Oct 6

PDX6:06 amPortland

23h 54m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Oct 30

BKK9:10 pmBangkok Suvarnabhumi

28h 26m

2 stops

PDX11:36 amPortland

$930

Singapore Airlines

Oct 2

PDX3:33 pmPortland

26h 32m

2 stops

BKK8:05 amBangkok Suvarnabhumi

Oct 11

BKK12:15 pmBangkok Suvarnabhumi

35h 16m

2 stops

PDX9:31 amPortland

$951

Singapore Airlines

Nov 4

PDX2:45 pmPortland

26h 40m

2 stops

BKK8:25 amBangkok Suvarnabhumi

Dec 3

BKK8:00 pmBangkok Suvarnabhumi

29h 50m

2 stops

PDX10:50 amPortland

$961

Air Canada flights from Portland to Bangkok

Our best Air Canada deals on Portland to Bangkok flight tickets

Air Canada

Jun 3

PDX7:45 pmPortland

36h 10m

2 stops

BKK9:55 pmBangkok Suvarnabhumi

Jun 10

BKK1:20 amBangkok Suvarnabhumi

27h 25m

2 stops

PDX2:45 pmPortland

$1,334

Air Canada

Jun 6

PDX7:45 pmPortland

36h 10m

2 stops

BKK9:55 pmBangkok Suvarnabhumi

Jun 22

BKK7:05 amBangkok Suvarnabhumi

16h 26m

1 stop

PDX9:31 amPortland

$1,365

Air Canada

Jun 10

PDX7:45 pmPortland

35h 00m

2 stops

BKK8:45 pmBangkok Suvarnabhumi

Jul 3

BKK7:05 amBangkok Suvarnabhumi

26h 06m

1 stop

PDX7:11 pmPortland

$1,374

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 8/25

7:03 am-12:40 am

2 stops27h 37m

Bangkok Suvarnabhumi

Mon 9/7

2:10 am-4:36 pm

2 stops28h 26m

$980

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 8/19

11:48 am-7:15 am

2 stops29h 27m

Bangkok Suvarnabhumi

Thu 9/17

2:30 am-4:50 pm

2 stops28h 20m

$1,018

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/27

11:48 am-6:20 am

2 stops28h 32m

Bangkok Suvarnabhumi

Wed 9/9

2:30 am-4:50 pm

2 stops28h 20m

$1,020

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 8/9

7:00 am-12:40 am

2 stops27h 40m

Bangkok Suvarnabhumi

Tue 9/8

2:10 am-4:36 pm

2 stops28h 26m

$1,022

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/27

11:48 am-12:55 pm

2 stops35h 07m

Bangkok Suvarnabhumi

Wed 9/9

2:30 am-7:50 pm

2 stops31h 20m

$1,035

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/27

7:09 am-6:20 am

2 stops33h 11m

Bangkok Suvarnabhumi

Wed 9/9

2:30 am-6:40 pm

2 stops30h 10m

$1,043

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 8/23

9:32 pm-9:45 am

2 stops22h 13m

Bangkok Suvarnabhumi

Sat 8/29

5:30 pm-8:11 am

2 stops28h 41m

$1,077

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 8/22

8:07 am-9:45 am

2 stops35h 38m

Bangkok Suvarnabhumi

Sat 8/29

10:50 am-8:11 am

2 stops35h 21m

$1,081

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 8/21

11:48 am-6:20 am

2 stops28h 32m

Bangkok Suvarnabhumi

Thu 9/10

2:30 am-8:47 pm

2 stops32h 17m

$1,083

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 8/17

9:30 pm-9:45 am

2 stops22h 15m

Bangkok Suvarnabhumi

Mon 8/24

5:30 pm-8:11 am

2 stops28h 41m

$1,108

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 week ahead of your departure date. In general, you can expect to find flights to Bangkok for around $1,069 when searching week 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 $966 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	23h 54m
Direct flights	None

The fastest flight from Portland to Bangkok takes 23h 54m

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. 23h 54m 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 8,397 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,354 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 327 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,528 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,834 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 828 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.3 1,219 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 9,779 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,465 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.

An easier way to manage your Bangkok trip

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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 11/2. 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

Air Canada flights from Portland to Bangkok

Our best Air Canada deals on Portland to Bangkok flight tickets

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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

Popular cities in Thailand

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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