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

United Airlines and China Eastern 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 50% 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 September 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.

7:45 pm - 11:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

37h 50m2 stops Vancouver Intl Incheon Intl

8:00 am - 7:11 pmBKK Bangkok Suvarnabhumi-PDX Portland

49h 11m2 stops Singapore Changi Vancouver Intl

$755Air Canada

Tue, Sep 15 - Wed, Sep 30

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

36h 00m2 stops Vancouver Intl Incheon Intl

11:15 am - 9:31 amBKK Bangkok Suvarnabhumi-PDX Portland

36h 16m2 stops Singapore Changi Vancouver Intl

$755Air Canada

Tue, Sep 22 - Wed, Sep 30

7:00 am - 11:05 amPDX Portland-BKK Bangkok Suvarnabhumi

37h 05m2 stops Vancouver Intl Incheon Intl

11:55 pm - 6:31 pmBKK Bangkok Suvarnabhumi-PDX Portland

33h 36m2 stops Incheon Intl Vancouver Intl

$838Multiple Airlines

Tue, Dec 1 - Tue, Dec 15

7:45 pm - 1:15 pmPDX Portland-HKT Phuket City

27h 30m2 stops Vancouver Intl Singapore Changi

10:45 pm - 2:46 pmHKT Phuket City-PDX Portland

30h 01m2 stops Incheon Intl Vancouver Intl

$882Multiple Airlines

Thu, Sep 24 - Tue, Oct 6

5:32 pm - 4:30 pmPDX Portland-BKK Bangkok Suvarnabhumi

31h 58m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

5:40 pm - 9:25 amBKK Bangkok Suvarnabhumi-PDX Portland

30h 45m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$940STARLUX Airlines

Wed, Jan 27 - Sun, Feb 14

10:48 am - 12:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

34h 47m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

1:45 pm - 8:40 amBKK Bangkok Suvarnabhumi-PDX Portland

33h 55m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$940STARLUX Airlines

Sat, Jan 23 - Mon, Feb 8

7:09 am - 11:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

25h 26m2 stops San Francisco Tokyo Narita

7:55 am - 1:29 pmBKK Bangkok Suvarnabhumi-PDX Portland

20h 34m2 stops Tokyo Narita Seattle/Tacoma Intl

$964Japan Airlines

Tue, Jan 19 - Wed, Jan 27

7:09 am - 11:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

25h 26m2 stops San Francisco Tokyo Narita

7:55 am - 1:48 pmBKK Bangkok Suvarnabhumi-PDX Portland

20h 53m2 stops Tokyo Narita San Francisco

$964Japan Airlines

Wed, Jan 20 - Thu, Jan 28

7:00 am - 9:30 pmPDX Portland-BKK Bangkok Suvarnabhumi

23h 30m2 stops Seattle/Tacoma Intl Incheon Intl

9:40 am - 6:56 pmBKK Bangkok Suvarnabhumi-PDX Portland

24h 16m2 stops Incheon Intl Los Angeles

$968Korean Air

Mon, Nov 2 - Mon, Nov 9

6:08 am - 1:05 amPDX Portland-BKK Bangkok Suvarnabhumi

28h 57m2 stops Los Angeles Incheon Intl

9:40 pm - 5:09 pmBKK Bangkok Suvarnabhumi-PDX Portland

33h 29m2 stops Incheon Intl Seattle/Tacoma Intl

$996Korean Air

Wed, Sep 16 - Sun, Sep 27

Cheap last minute flights

Enter your travel dates to find the best prices.

3:30 pm - 9:55 pmPDX Portland-BKK Bangkok Suvarnabhumi

40h 25m2 stops Vancouver Intl Tokyo Narita

7:05 am - 7:11 pmBKK Bangkok Suvarnabhumi-PDX Portland

26h 06m1 stop Vancouver Intl

$826Air Canada

Mon, Sep 7 - Wed, Oct 21

10:10 am - 8:45 pmPDX Portland-BKK Bangkok Suvarnabhumi

44h 35m2 stops Vancouver Intl Hong Kong Intl

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

16h 26m1 stop Vancouver Intl

$830Air Canada

Mon, Sep 7 - Wed, Oct 21

3:30 pm - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

28h 05m2 stops Vancouver Intl Hong Kong Intl

7:05 am - 2:46 pmBKK Bangkok Suvarnabhumi-PDX Portland

21h 41m1 stop Vancouver Intl

$866Multiple Airlines

Sat, Sep 5 - Fri, Sep 18

8:18 pm - 4:40 pmPDX Portland-BKK Bangkok Suvarnabhumi

30h 22m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

1:10 pm - 9:25 amBKK Bangkok Suvarnabhumi-PDX Portland

34h 15m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$934Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

5:55 pm - 12:00 pmPDX Portland-BKK Bangkok Suvarnabhumi

28h 05m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

5:50 pm - 10:50 amBKK Bangkok Suvarnabhumi-PDX Portland

31h 00m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$940STARLUX Airlines

Tue, Sep 8 - Sun, Sep 13

5:55 pm - 4:40 pmPDX Portland-BKK Bangkok Suvarnabhumi

32h 45m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

1:10 pm - 9:25 amBKK Bangkok Suvarnabhumi-PDX Portland

34h 15m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$940STARLUX Airlines

Tue, Sep 8 - Sun, Sep 13

9:20 am - 11:00 pmPDX Portland-BKK Bangkok Suvarnabhumi

23h 40m2 stops Seattle/Tacoma Intl Tokyo Narita

7:55 am - 1:24 pmBKK Bangkok Suvarnabhumi-PDX Portland

19h 29m2 stops Tokyo Narita Seattle/Tacoma Intl

$969Japan Airlines

Mon, Sep 7 - Wed, Oct 21

6:20 am - 11:00 pmPDX Portland-BKK Bangkok Suvarnabhumi

26h 40m2 stops Seattle/Tacoma Intl Tokyo Narita

7:55 am - 1:24 pmBKK Bangkok Suvarnabhumi-PDX Portland

19h 29m2 stops Tokyo Narita Seattle/Tacoma Intl

$974Japan Airlines

Mon, Sep 7 - Wed, Oct 21

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

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

9:35 am - 10:57 pmBKK Bangkok Suvarnabhumi-PDX Portland

27h 22m2 stops Tokyo Haneda San Francisco

$1,002United Airlines

Mon, Sep 7 - Wed, Oct 21

1:03 pm - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

30h 32m3 stops San Francisco Los Angeles Hong Kong Intl

7:00 am - 6:19 pmBKK Bangkok Suvarnabhumi-PDX Portland

25h 19m2 stops Tokyo Narita San Francisco

$1,034United Airlines

Tue, Sep 8 - Sun, Sep 13

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Air Canada flights from Portland to Thailand

Our best Air Canada deals on Portland to Thailand flight tickets

Air Canada

Sep 15

PDX3:30 pmPortland

40h 40m

2 stops

BKK10:10 pmBangkok Suvarnabhumi

Sep 28

BKK1:35 amBangkok Suvarnabhumi

31h 36m

2 stops

PDX7:11 pmPortland

$755

Air Canada

Sep 15

PDX3:30 pmPortland

40h 40m

2 stops

BKK10:10 pmBangkok Suvarnabhumi

Sep 28

BKK1:35 amBangkok Suvarnabhumi

27h 11m

2 stops

PDX2:46 pmPortland

$757

Air Canada

Sep 22

PDX7:45 pmPortland

36h 00m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Sep 30

BKK11:15 amBangkok Suvarnabhumi

36h 16m

2 stops

PDX9:31 amPortland

$759

STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Sep 8

PDX5:55 pmPortland

28h 05m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Sep 13

BKK5:50 pmBangkok Suvarnabhumi

31h 00m

2 stops

PDX10:50 amPortland

$940

STARLUX Airlines

Nov 12

PDX10:46 amPortland

38h 44m

2 stops

BKK4:30 pmBangkok Suvarnabhumi

Dec 10

BKK1:45 pmBangkok Suvarnabhumi

34h 40m

2 stops

PDX9:25 amPortland

$942

STARLUX Airlines

Sep 13

PDX5:41 pmPortland

32h 24m

2 stops

CNX4:05 pmChiang Mai

Sep 17

CNX5:20 pmChiang Mai

42h 41m

2 stops

PDX10:01 pmPortland

$1,301

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 9/15

7:45 pm-11:35 pm

2 stops37h 50m

Bangkok Suvarnabhumi

Wed 9/30

8:00 am-7:11 pm

2 stops49h 11m

$755

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 9/22

7:45 pm-9:45 pm

2 stops36h 00m

Bangkok Suvarnabhumi

Wed 9/30

11:15 am-9:31 am

2 stops36h 16m

$755

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 12/1

7:00 am-11:05 am

2 stops37h 05m

Bangkok Suvarnabhumi

Tue 12/15

11:55 pm-6:31 pm

2 stops33h 36m

$838

PortlandPhuket City

PDX Portland - HKT Phuket City

PDXHKT

Portland

Thu 9/24

7:45 pm-1:15 pm

2 stops27h 30m

Phuket City

Tue 10/6

10:45 pm-2:46 pm

2 stops30h 01m

$882

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 1/27

5:32 pm-4:30 pm

2 stops31h 58m

Bangkok Suvarnabhumi

Sun 2/14

5:40 pm-9:25 am

2 stops30h 45m

$940

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Sat 1/23

10:48 am-12:35 pm

2 stops34h 47m

Bangkok Suvarnabhumi

Mon 2/8

1:45 pm-8:40 am

2 stops33h 55m

$940

Quickest round-trip

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 1/19

7:09 am-11:35 pm

2 stops25h 26m

Bangkok Suvarnabhumi

Wed 1/27

7:55 am-1:29 pm

2 stops20h 34m

$964

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 1/20

7:09 am-11:35 pm

2 stops25h 26m

Bangkok Suvarnabhumi

Thu 1/28

7:55 am-1:48 pm

2 stops20h 53m

$964

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 11/2

7:00 am-9:30 pm

2 stops23h 30m

Bangkok Suvarnabhumi

Mon 11/9

9:40 am-6:56 pm

2 stops24h 16m

$968

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 9/16

6:08 am-1:05 am

2 stops28h 57m

Bangkok Suvarnabhumi

Sun 9/27

9:40 pm-5:09 pm

2 stops33h 29m

$996

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 March is also very affordable. Most momondo users find prices during this month for around $1,005.

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 $1,144 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 $968 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 21% 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

Best Price Found	$419
Fastest flight time	23h 10m
Direct flights	None

The best one-way flight to Thailand from Portland in the past 72 hours is $419. The best round-trip flight deal from Portland to Thailand found on momondo in the last 72 hours is $755.

The fastest flight from Portland to Thailand takes 23h 10m

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 September 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 $99	Free Cancellation	Rating 7.8 8,566 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,471 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $753	Free Cancellation	Rating 8.7 376 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,593 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 844 reviews	Search China Airlines flights
Japan Airlines	PriceFrom $837	Free Cancellation	Rating 8.3 1,911 reviews	Search Japan Airlines flights
Korean Air	PriceFrom $845	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
United Airlines	PriceFrom $871	Free Cancellation	Rating 7.4 10,172 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,522 reviews	Search EVA Air flights
Air Canada	PriceFrom $918	Free Cancellation	Rating 7.1 11,581 reviews	Search Air Canada 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.