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

United Airlines, China Eastern, and Korean Air 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.

$388 Cheap Flights from Portland to Thailand in 2026/27

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.

2:49 pm - 12:05 pmPDX Portland-BKK Bangkok Suvarnabhumi

30h 16m2 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl

1:10 pm - 9:52 pmBKK Bangkok Suvarnabhumi-PDX Portland

23h 42m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl

$877Multiple Airlines

Sun, Nov 22 - Wed, Dec 23

1:49 pm - 12:05 pmPDX Portland-BKK Bangkok Suvarnabhumi

31h 16m2 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl

1:10 pm - 9:52 pmBKK Bangkok Suvarnabhumi-PDX Portland

23h 42m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl

$890Multiple Airlines

Fri, Nov 27 - Sun, Dec 13

7:05 am - 11:05 pmPDX Portland-BKK Bangkok Suvarnabhumi

26h 00m2 stops Los Angeles Incheon Intl

11:15 pm - 1:35 pmBKK Bangkok Suvarnabhumi-PDX Portland

29h 20m2 stops Incheon Intl Seattle/Tacoma Intl

$926Korean Air

Mon, Oct 26 - Mon, Nov 9

7:05 am - 10:45 pmPDX Portland-CNX Chiang Mai

25h 40m2 stops Los Angeles Incheon Intl

12:20 am - 4:21 pmCNX Chiang Mai-PDX Portland

31h 01m2 stops Incheon Intl Los Angeles

$945Korean Air

Mon, Oct 26 - Sun, Nov 8

7:09 am - 5:05 amPDX Portland-BKK Bangkok Suvarnabhumi

30h 56m2 stops San Francisco Tokyo Haneda

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

20h 34m2 stops Tokyo Narita Seattle/Tacoma Intl

$981Japan Airlines

Wed, Jan 20 - Thu, Jan 28

7:09 am - 5:05 amPDX Portland-BKK Bangkok Suvarnabhumi

30h 56m2 stops San Francisco Tokyo Haneda

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

20h 34m2 stops Tokyo Narita Seattle/Tacoma Intl

$981Japan Airlines

Mon, Jan 18 - Mon, Jan 25

9:40 am - 11:05 pmPDX Portland-BKK Bangkok Suvarnabhumi

22h 25m2 stops Seattle/Tacoma Intl Incheon Intl

1:05 am - 7:03 pmBKK Bangkok Suvarnabhumi-PDX Portland

32h 58m2 stops Incheon Intl Seattle/Tacoma Intl

$992Delta

Wed, Jan 27 - Wed, Feb 10

6:40 am - 12:20 amPDX Portland-BKK Bangkok Suvarnabhumi

26h 40m2 stops Seattle/Tacoma Intl Incheon Intl

9:40 pm - 7:03 pmBKK Bangkok Suvarnabhumi-PDX Portland

36h 23m2 stops Incheon Intl Seattle/Tacoma Intl

$992Delta

Tue, Feb 9 - Sun, Feb 21

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

30h 40m2 stops San Francisco Tokyo Haneda

9:10 am - 10:43 pmBKK Bangkok Suvarnabhumi-PDX Portland

28h 33m2 stops Tokyo Haneda San Francisco

$998United Airlines

Mon, Jan 11 - Tue, Jan 19

3:30 pm - 5:10 amPDX Portland-BKK Bangkok Suvarnabhumi

46h 40m2 stops San Francisco Tokyo Haneda

9:10 am - 10:43 pmBKK Bangkok Suvarnabhumi-PDX Portland

28h 33m2 stops Tokyo Haneda San Francisco

$998United Airlines

Sun, Jan 17 - Wed, Feb 3

Cheap last minute flights

Enter your travel dates to find the best prices.

5:41 pm - 8:55 amPDX Portland-BKK Bangkok Suvarnabhumi

25h 14m2 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl

11:40 pm - 9:52 pmBKK Bangkok Suvarnabhumi-PDX Portland

37h 12m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl

$877Multiple Airlines

Tue, Sep 29 - Tue, Dec 1

5:41 pm - 8:55 amPDX Portland-BKK Bangkok Suvarnabhumi

25h 14m2 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl

1:25 pm - 8:28 amBKK Bangkok Suvarnabhumi-PDX Portland

33h 03m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl

$917Multiple Airlines

Sun, Sep 27 - Fri, Oct 23

9:51 am - 11:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

23h 44m2 stops Seattle/Tacoma Intl Incheon Intl

2:35 am - 2:41 pmBKK Bangkok Suvarnabhumi-PDX Portland

26h 06m2 stops Incheon Intl Seattle/Tacoma Intl

$997Korean Air

Thu, Sep 24 - Tue, Sep 29

3:23 pm - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

28h 12m3 stops San Francisco Los Angeles Hong Kong Intl

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

25h 25m2 stops Tokyo Haneda San Francisco

$1,002United Airlines

Thu, Sep 24 - Wed, Sep 30

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

26h 55m2 stops San Francisco Tokyo Narita

4:55 pm - 2:38 pmBKK Bangkok Suvarnabhumi-PDX Portland

36h 43m2 stops Hong Kong Intl San Francisco

$1,019United Airlines

Tue, Sep 29 - Tue, Dec 1

5:34 pm - 10:10 pmPDX Portland-HKT Phuket City

38h 36m2 stops Los Angeles Incheon Intl

11:25 pm - 10:19 pmHKT Phuket City-PDX Portland

36h 54m2 stops Incheon Intl Los Angeles

$1,033Korean Air

Thu, Sep 24 - Wed, Oct 7

7:00 am - 10:10 pmPDX Portland-HKT Phuket City

25h 10m2 stops Seattle/Tacoma Intl Incheon Intl

11:25 pm - 5:04 pmHKT Phuket City-PDX Portland

31h 39m2 stops Incheon Intl Seattle/Tacoma Intl

$1,092Delta

Mon, Sep 28 - Wed, Oct 21

5:30 am - 10:10 pmPDX Portland-HKT Phuket City

26h 40m2 stops Seattle/Tacoma Intl Incheon Intl

11:25 pm - 5:04 pmHKT Phuket City-PDX Portland

31h 39m2 stops Incheon Intl Seattle/Tacoma Intl

$1,092Delta

Mon, Sep 28 - Mon, Oct 5

3:30 pm - 10:10 pmPDX Portland-BKK Bangkok Suvarnabhumi

40h 40m2 stops Vancouver Intl Singapore Changi

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

26h 06m1 stop Vancouver Intl

$1,585Air Canada

Thu, Sep 24 - Wed, Sep 30

3:30 pm - 8:45 pmPDX Portland-BKK Bangkok Suvarnabhumi

39h 15m2 stops Vancouver Intl Hong Kong Intl

8:25 am - 8:46 pmBKK Bangkok Suvarnabhumi-PDX Portland

27h 21m1 stop Vancouver Intl

$1,590Air Canada

Tue, Sep 29 - Tue, Dec 1

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Japan Airlines flights from Portland to Thailand

Our best Japan Airlines deals on Portland to Thailand flight tickets

Japan Airlines

Jan 19

PDX7:09 amPortland

30h 56m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Jan 27

BKK7:55 amBangkok Suvarnabhumi

20h 34m

2 stops

PDX1:29 pmPortland

$981

Japan Airlines

Jan 19

PDX7:09 amPortland

30h 56m

2 stops

BKK5:05 amBangkok Suvarnabhumi

Jan 27

BKK7:55 amBangkok Suvarnabhumi

20h 34m

2 stops

PDX1:29 pmPortland

$982

Japan Airlines

Jan 18

PDX7:09 amPortland

25h 26m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Jan 25

BKK7:55 amBangkok Suvarnabhumi

20h 53m

2 stops

PDX1:48 pmPortland

$984

Air Canada flights from Portland to Thailand

Our best Air Canada deals on Portland to Thailand flight tickets

Air Canada

Dec 3

PDX10:00 amPortland

23h 20m

2 stops

BKK12:20 amBangkok Suvarnabhumi

Dec 13

BKK8:25 amBangkok Suvarnabhumi

16h 01m

1 stop

PDX9:26 amPortland

$1,031

Air Canada

Oct 5

PDX10:10 amPortland

28h 55m

1 stop

BKK5:05 amBangkok Suvarnabhumi

Oct 26

BKK11:55 pmBangkok Suvarnabhumi

34h 51m

2 stops

PDX8:46 pmPortland

$1,246

Air Canada

Oct 5

PDX3:30 pmPortland

23h 35m

1 stop

BKK5:05 amBangkok Suvarnabhumi

Oct 20

BKK8:00 amBangkok Suvarnabhumi

39h 31m

2 stops

PDX9:31 amPortland

$1,268

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Sun 11/22

2:49 pm-12:05 pm

2 stops30h 16m

Bangkok Suvarnabhumi

Wed 12/23

1:10 pm-9:52 pm

2 stops23h 42m

$877

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Fri 11/27

1:49 pm-12:05 pm

2 stops31h 16m

Bangkok Suvarnabhumi

Sun 12/13

1:10 pm-9:52 pm

2 stops23h 42m

$890

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 10/26

7:05 am-11:05 pm

2 stops26h 00m

Bangkok Suvarnabhumi

Mon 11/9

11:15 pm-1:35 pm

2 stops29h 20m

$926

PortlandChiang Mai

PDX Portland - CNX Chiang Mai

PDXCNX

Portland

Mon 10/26

7:05 am-10:45 pm

2 stops25h 40m

Chiang Mai

Sun 11/8

12:20 am-4:21 pm

2 stops31h 01m

$945

Quickest round-trip

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 1/20

7:09 am-5:05 am

2 stops30h 56m

Bangkok Suvarnabhumi

Thu 1/28

7:55 am-1:29 pm

2 stops20h 34m

$981

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 1/18

7:09 am-5:05 am

2 stops30h 56m

Bangkok Suvarnabhumi

Mon 1/25

7:55 am-1:29 pm

2 stops20h 34m

$981

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 1/27

9:40 am-11:05 pm

2 stops22h 25m

Bangkok Suvarnabhumi

Wed 2/10

1:05 am-7:03 pm

2 stops32h 58m

$992

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 2/9

6:40 am-12:20 am

2 stops26h 40m

Bangkok Suvarnabhumi

Sun 2/21

9:40 pm-7:03 pm

2 stops36h 23m

$992

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 1/11

7:30 am-5:10 am

2 stops30h 40m

Bangkok Suvarnabhumi

Tue 1/19

9:10 am-10:43 pm

2 stops28h 33m

$998

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Sun 1/17

3:30 pm-5:10 am

2 stops46h 40m

Bangkok Suvarnabhumi

Wed 2/3

9:10 am-10:43 pm

2 stops28h 33m

$998

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 November is also very affordable. Most momondo users find prices during this month for around $1,011.

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 $1,158 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 $1,056 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 8% 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	$388
Fastest flight time	21h 59m
Direct flights	None

The best one-way flight to Thailand from Portland in the past 72 hours is $388. The best round-trip flight deal from Portland to Thailand found on momondo in the last 72 hours is $877.

The fastest flight from Portland to Thailand takes 21h 59m

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 8,591 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,494 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $753	Free Cancellation	Rating 8.7 387 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,607 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 847 reviews	Search China Airlines flights
Korean Air	PriceFrom $845	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
United Airlines	PriceFrom $872	Free Cancellation	Rating 7.4 10,226 reviews	Search United Airlines flights
Japan Airlines	PriceFrom $882	Free Cancellation	Rating 8.3 1,920 reviews	Search Japan Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,532 reviews	Search EVA Air flights
Air Canada	PriceFrom $900	Free Cancellation	Rating 7.1 11,668 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.