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

United Airlines, Korean Air, and Etihad Airways are the most popular carriers operating from Portland to Thailand

What airlines fly to Thailand?

Air Canada, STARLUX Airlines and United Airlines are the top three most popular airlines that fly to Thailand from Portland according to our data. Air Canada is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 11 different airlines that fly to Thailand 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 Thailand?

Prices for flights from Portland Airport to Thailand are updated daily.

How many operators does momondo search for flights from Portland Airport to Thailand?

As of August 2026, there are 11 operators available to choose from for flights from Portland Airport to Thailand.

How old do you have to be to fly from Portland Airport to Thailand?

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 Thailand.

What documentation or ID do you need to fly to Thailand?

The travel and health documents required for your trip to Thailand 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 Thailand. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$419 Cheap Flights from Portland to Thailand in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:30 pm - 5:05 amPDX Portland-BKK Bangkok Suvarnabhumi

23h 35m1 stop Vancouver Intl

7:05 am - 9:31 amBKK Bangkok Suvarnabhumi-PDX Portland

16h 26m1 stop Vancouver Intl

$833Air Canada

Mon, Sep 7 - Mon, Sep 21

10:10 am - 5:05 amPDX Portland-BKK Bangkok Suvarnabhumi

28h 55m1 stop Vancouver Intl

7:05 am - 2:51 pmBKK Bangkok Suvarnabhumi-PDX Portland

21h 46m1 stop Vancouver Intl

$833Air Canada

Mon, Sep 7 - Wed, Oct 21

7:45 pm - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

23h 50m2 stops Vancouver Intl Hong Kong Intl

7:05 am - 9:31 amBKK Bangkok Suvarnabhumi-PDX Portland

16h 26m1 stop Vancouver Intl

$860Multiple Airlines

Mon, Sep 7 - Mon, Sep 21

7:45 pm - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

23h 50m2 stops Vancouver Intl Hong Kong Intl

11:30 pm - 2:46 pmBKK Bangkok Suvarnabhumi-PDX Portland

29h 16m2 stops Incheon Intl Vancouver Intl

$868Multiple Airlines

Wed, Sep 2 - Mon, Sep 28

3:43 pm - 10:15 pmPDX Portland-BKK Bangkok Suvarnabhumi

40h 32m3 stops San Francisco Denver Intl Tokyo Narita

9:35 am - 9:00 pmBKK Bangkok Suvarnabhumi-PDX Portland

25h 25m2 stops Tokyo Haneda San Francisco

$963United Airlines

Wed, Sep 2 - Mon, Sep 28

7:30 am - 12:20 amPDX Portland-BKK Bangkok Suvarnabhumi

25h 50m2 stops San Francisco Tokyo Narita

9:10 am - 6:31 pmBKK Bangkok Suvarnabhumi-PDX Portland

24h 21m2 stops Tokyo Haneda San Francisco

$963ANA

Wed, Jan 13 - Wed, Jan 27

7:00 am - 11:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

25h 35m2 stops San Francisco Tokyo Narita

8:05 am - 1:50 pmBKK Bangkok Suvarnabhumi-PDX Portland

20h 45m2 stops Tokyo Narita San Francisco

$965Japan Airlines

Tue, Jan 19 - Wed, Jan 27

9:00 am - 11:55 pmPDX Portland-BKK Bangkok Suvarnabhumi

24h 55m2 stops San Francisco Tokyo Narita

7:10 am - 2:37 pmBKK Bangkok Suvarnabhumi-PDX Portland

21h 27m2 stops Tokyo Narita San Francisco

$965ANA

Thu, Oct 22 - Fri, Oct 30

7:30 am - 5:10 amPDX Portland-BKK Bangkok Suvarnabhumi

30h 40m2 stops San Francisco Tokyo Haneda

9:10 am - 8:33 pmBKK Bangkok Suvarnabhumi-PDX Portland

26h 23m2 stops Tokyo Haneda San Francisco

$970United Airlines

Thu, Jan 21 - Tue, Feb 16

7:03 am - 3:10 pmPDX Portland-BKK Bangkok Suvarnabhumi

42h 07m2 stops San Francisco Tokyo Haneda

7:55 am - 1:37 pmBKK Bangkok Suvarnabhumi-PDX Portland

19h 42m2 stops Tokyo Narita Seattle/Tacoma Intl

$971Japan Airlines

Tue, Sep 1 - Wed, Sep 9

Cheap last minute flights

Enter your travel dates to find the best prices.

9:00 am - 11:55 pmPDX Portland-BKK Bangkok Suvarnabhumi

24h 55m2 stops San Francisco Tokyo Narita

9:35 pm - 2:35 pmBKK Bangkok Suvarnabhumi-PDX Portland

31h 00m2 stops Tokyo Haneda San Francisco

$977ANA

Fri, Aug 21 - Fri, Aug 28

7:03 am - 3:10 pmPDX Portland-BKK Bangkok Suvarnabhumi

42h 07m2 stops San Francisco Tokyo Haneda

9:40 am - 4:50 pmBKK Bangkok Suvarnabhumi-PDX Portland

45h 10m2 stops Tokyo Haneda San Francisco

$978Japan Airlines

Wed, Aug 19 - Wed, Sep 9

7:03 am - 3:10 pmPDX Portland-BKK Bangkok Suvarnabhumi

42h 07m2 stops San Francisco Tokyo Haneda

9:40 am - 4:50 pmBKK Bangkok Suvarnabhumi-PDX Portland

45h 10m2 stops Tokyo Haneda San Francisco

$989Japan Airlines

Wed, Aug 19 - Wed, Sep 9

11:15 am - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

32h 20m3 stops San Francisco Los Angeles Hong Kong Intl

9:35 am - 6:19 pmBKK Bangkok Suvarnabhumi-PDX Portland

46h 44m2 stops Tokyo Haneda San Francisco

$1,002United Airlines

Wed, Aug 19 - Wed, Sep 9

7:00 am - 11:55 pmPDX Portland-BKK Bangkok Suvarnabhumi

26h 55m2 stops San Francisco Tokyo Narita

9:35 pm - 2:57 pmBKK Bangkok Suvarnabhumi-PDX Portland

31h 22m2 stops Tokyo Haneda San Francisco

$1,004ANA

Mon, Aug 17 - Mon, Aug 31

9:00 am - 11:55 pmPDX Portland-BKK Bangkok Suvarnabhumi

24h 55m2 stops San Francisco Tokyo Narita

9:35 am - 10:45 pmBKK Bangkok Suvarnabhumi-PDX Portland

27h 10m2 stops Tokyo Haneda San Francisco

$1,011United Airlines

Mon, Aug 17 - Mon, Aug 24

7:45 pm - 9:55 pmPDX Portland-BKK Bangkok Suvarnabhumi

36h 10m2 stops Vancouver Intl Tokyo Narita

5:50 pm - 10:01 pmBKK Bangkok Suvarnabhumi-PDX Portland

42h 11m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,027Multiple Airlines

Wed, Aug 19 - Fri, Aug 28

7:45 pm - 5:05 amPDX Portland-BKK Bangkok Suvarnabhumi

19h 20m1 stop Vancouver Intl

10:50 am - 9:25 amBKK Bangkok Suvarnabhumi-PDX Portland

36h 35m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$1,045Multiple Airlines

Mon, Aug 17 - Mon, Aug 31

3:30 pm - 5:05 amPDX Portland-BKK Bangkok Suvarnabhumi

23h 35m1 stop Vancouver Intl

7:05 am - 9:31 amBKK Bangkok Suvarnabhumi-PDX Portland

16h 26m1 stop Vancouver Intl

$1,132Air Canada

Wed, Aug 19 - Wed, Sep 9

3:30 pm - 5:05 amPDX Portland-BKK Bangkok Suvarnabhumi

23h 35m1 stop Vancouver Intl

7:05 am - 9:31 amBKK Bangkok Suvarnabhumi-PDX Portland

16h 26m1 stop Vancouver Intl

$1,163Air Canada

Wed, Aug 19 - Wed, Sep 9

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United Airlines flights from Portland to Thailand

Our best United Airlines deals on Portland to Thailand flight tickets

United Airlines

Sep 2

PDX3:43 pmPortland

40h 32m

3 stops

BKK10:15 pmBangkok Suvarnabhumi

Sep 28

BKK9:35 amBangkok Suvarnabhumi

25h 25m

2 stops

PDX9:00 pmPortland

$963

United Airlines

Jan 13

PDX7:30 amPortland

30h 40m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Jan 26

BKK9:10 amBangkok Suvarnabhumi

26h 23m

2 stops

PDX8:33 pmPortland

$970

United Airlines

Jan 16

PDX7:49 pmPortland

42h 21m

2 stops

BKK5:10 amBangkok Suvarnabhumi

Feb 15

BKK7:10 amBangkok Suvarnabhumi

28h 23m

2 stops

PDX8:33 pmPortland

$971

ANA flights from Portland to Thailand

Our best ANA deals on Portland to Thailand flight tickets

ANA

Oct 22

PDX9:00 amPortland

24h 55m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Oct 30

BKK7:10 amBangkok Suvarnabhumi

21h 27m

2 stops

PDX2:37 pmPortland

$965

ANA

Jan 13

PDX7:30 amPortland

25h 50m

2 stops

BKK12:20 amBangkok Suvarnabhumi

Jan 27

BKK2:25 pmBangkok Suvarnabhumi

43h 06m

2 stops

PDX6:31 pmPortland

$966

ANA

Sep 12

PDX9:00 amPortland

23h 15m

2 stops

BKK10:15 pmBangkok Suvarnabhumi

Sep 19

BKK9:35 pmBangkok Suvarnabhumi

34h 50m

2 stops

PDX6:25 pmPortland

$972

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 9/7

3:30 pm-5:05 am

1 stop23h 35m

Bangkok Suvarnabhumi

Mon 9/21

7:05 am-9:31 am

1 stop16h 26m

$833

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 9/7

10:10 am-5:05 am

1 stop28h 55m

Bangkok Suvarnabhumi

Wed 10/21

7:05 am-2:51 pm

1 stop21h 46m

$833

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 9/7

7:45 pm-9:35 am

2 stops23h 50m

Bangkok Suvarnabhumi

Mon 9/21

7:05 am-9:31 am

1 stop16h 26m

$860

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 9/2

7:45 pm-9:35 am

2 stops23h 50m

Bangkok Suvarnabhumi

Mon 9/28

11:30 pm-2:46 pm

2 stops29h 16m

$868

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 9/2

3:43 pm-10:15 pm

3 stops40h 32m

Bangkok Suvarnabhumi

Mon 9/28

9:35 am-9:00 pm

2 stops25h 25m

$963

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 1/13

7:30 am-12:20 am

2 stops25h 50m

Bangkok Suvarnabhumi

Wed 1/27

9:10 am-6:31 pm

2 stops24h 21m

$963

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 1/19

7:00 am-11:35 pm

2 stops25h 35m

Bangkok Suvarnabhumi

Wed 1/27

8:05 am-1:50 pm

2 stops20h 45m

$965

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Thu 10/22

9:00 am-11:55 pm

2 stops24h 55m

Bangkok Suvarnabhumi

Fri 10/30

7:10 am-2:37 pm

2 stops21h 27m

$965

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Thu 1/21

7:30 am-5:10 am

2 stops30h 40m

Bangkok Suvarnabhumi

Tue 2/16

9:10 am-8:33 pm

2 stops26h 23m

$970

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 9/1

7:03 am-3:10 pm

2 stops42h 07m

Bangkok Suvarnabhumi

Wed 9/9

7:55 am-1:37 pm

2 stops19h 42m

$971

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 Thailand

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 cheapest month to fly to Thailand?

The month of April is, on average, the cheapest month to fly to Thailand from Portland, with most prices found around $914. If you are unable to visit Thailand during the month of April, then departing from Portland during the month October is also very affordable. Most momondo users find prices during this month for around $990.

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

You are more likely to see cheaper flights to Thailand from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,135 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Thailand from Portland for as low as $975 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 1% on your flight if you consider stops on a Portland to Thailand flight.

Cheap Portland to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Thailand

Fastest flight time	23h 05m
Direct flights	None

The fastest flight from Portland to Thailand takes 23h 05m

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

Search flight deals

Frequently asked questions about flying from Portland to Thailand

When did momondo last update prices for flights from Portland Airport to Thailand?
Prices for flights from Portland Airport to Thailand are updated daily.
How many operators does momondo search for flights from Portland Airport to Thailand?
As of August 2026, there are 11 operators available to choose from for flights from Portland Airport to Thailand.
How old do you have to be to fly from Portland Airport to Thailand?
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 Thailand.
What documentation or ID do you need to fly to Thailand?
The travel and health documents required for your trip to Thailand 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 Thailand. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Thailand

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $139	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,453 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $753	Free Cancellation	Rating 8.8 371 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,584 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 841 reviews	Search China Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,905 reviews	Search Japan Airlines flights
Korean Air	PriceFrom $845	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
United Airlines	PriceFrom $852	Free Cancellation	Rating 7.4 10,106 reviews	Search United Airlines flights
ANA	PriceFrom $890	Free Cancellation	Rating 8.3 1,298 reviews	Search ANA flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,517 reviews	Search EVA Air flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Thailand?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Thailand. momondo saves you time and could save you money on your trip.

Can I find flights from Portland to Thailand with flexible booking policies on momondo?

Flights from Portland to Thailand with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Thailand?

Once you have performed a search for Portland to Thailand flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to Thailand right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Thailand, momondo offers a useful price alert feature which will track prices for flights to Thailand from Portland and alert you when they change.