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

United Airlines and Delta 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.

$435 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 - 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

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

37h 50m2 stops Vancouver Intl Incheon Intl

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

26h 06m1 stop Vancouver Intl

$770Air Canada

Mon, Sep 21 - Wed, Oct 21

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

3:30 pm - 1:15 pmPDX Portland-HKT Phuket City

31h 45m2 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

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

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

$940STARLUX Airlines

Mon, Jan 18 - Mon, Jan 25

2:34 pm - 12:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

31h 01m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

5:40 pm - 8:40 amBKK Bangkok Suvarnabhumi-PDX Portland

30h 00m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$940STARLUX Airlines

Mon, Jan 11 - Tue, Jan 19

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

$960Japan Airlines

Wed, Jan 20 - Thu, Jan 28

6:45 am - 11:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

26h 50m2 stops Los Angeles Incheon Intl

11:15 pm - 2:51 pmBKK Bangkok Suvarnabhumi-PDX Portland

29h 36m2 stops Incheon Intl Seattle/Tacoma Intl

$978Korean Air

Wed, Oct 21 - Wed, Oct 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

$982Japan Airlines

Wed, Jan 20 - Wed, Jan 27

6:40 am - 10:45 pmPDX Portland-CNX Chiang Mai

25h 05m2 stops Seattle/Tacoma Intl Incheon Intl

12:20 am - 7:28 pmCNX Chiang Mai-PDX Portland

34h 08m2 stops Incheon Intl Los Angeles

$998Korean Air

Mon, Feb 22 - Wed, Feb 24

Cheap last minute 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

2:35 am - 7:11 pmBKK Bangkok Suvarnabhumi-PDX Portland

30h 36m2 stops Incheon Intl Vancouver Intl

$778Air Canada

Wed, Sep 9 - Mon, Sep 28

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

37h 50m2 stops Vancouver Intl Incheon Intl

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

27h 21m1 stop Vancouver Intl

$815Air Canada

Sat, Sep 12 - Mon, Nov 9

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

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 - Tue, Sep 15

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

$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

5:30 am - 4:35 amPDX Portland-BKK Bangkok Suvarnabhumi

33h 05m2 stops San Francisco Tokyo Haneda

7:00 am - 6:31 pmBKK Bangkok Suvarnabhumi-PDX Portland

25h 31m3 stops Tokyo Narita Denver Intl San Francisco

$1,000United Airlines

Wed, Sep 9 - Tue, Sep 29

3:43 pm - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

27h 52m3 stops San Francisco Los Angeles Hong Kong Intl

9:10 am - 2:37 pmBKK Bangkok Suvarnabhumi-PDX Portland

20h 27m2 stops Tokyo Haneda San Francisco

$1,033United Airlines

Sat, Sep 12 - Mon, Nov 9

6:50 pm - 10:25 amPDX Portland-CNX Chiang Mai

25h 35m2 stops San Francisco Taipei City Taiwan Taoyuan Intl

11:35 am - 8:50 pmCNX Chiang Mai-PDX Portland

23h 15m2 stops Taipei City Taiwan Taoyuan Intl San Francisco

$2,249EVA Air

Sat, Sep 12 - Wed, Sep 23

10:29 am - 12:10 amPDX Portland-BKK Bangkok Suvarnabhumi

23h 41m2 stops Vancouver Intl Hong Kong Intl

12:35 pm - 9:48 amBKK Bangkok Suvarnabhumi-PDX Portland

35h 13m2 stops Hong Kong Intl Vancouver Intl

$4,860Cathay Pacific

Sun, Sep 13 - Tue, Sep 22

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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 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

$755

Air Canada

Sep 20

PDX7:45 pmPortland

37h 50m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Oct 21

BKK7:05 amBangkok Suvarnabhumi

16h 26m

1 stop

PDX9:31 amPortland

$770

Air Canada

Sep 22

PDX7:45 pmPortland

37h 50m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Oct 21

BKK7:05 amBangkok Suvarnabhumi

21h 41m

1 stop

PDX2:46 pmPortland

$771

STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Nov 11

PDX6:04 pmPortland

31h 26m

2 stops

BKK4:30 pmBangkok Suvarnabhumi

Feb 23

BKK1:45 pmBangkok Suvarnabhumi

34h 40m

2 stops

PDX9:25 amPortland

$940

STARLUX Airlines

Sep 8

PDX5:55 pmPortland

32h 45m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Sep 13

BKK1:10 pmBangkok Suvarnabhumi

34h 15m

2 stops

PDX9:25 amPortland

$941

STARLUX Airlines

Nov 23

PDX2:49 pmPortland

30h 46m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Dec 7

BKK5:40 pmBangkok Suvarnabhumi

30h 45m

2 stops

PDX9:25 amPortland

$942

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

Mon 9/21

7:45 pm-11:35 pm

2 stops37h 50m

Bangkok Suvarnabhumi

Wed 10/21

7:05 am-7:11 pm

1 stop26h 06m

$770

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

PortlandPhuket City

PDX Portland - HKT Phuket City

PDXHKT

Portland

Thu 9/24

3:30 pm-1:15 pm

2 stops31h 45m

Phuket City

Tue 10/6

10:45 pm-2:46 pm

2 stops30h 01m

$882

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 1/18

5:32 pm-4:30 pm

2 stops31h 58m

Bangkok Suvarnabhumi

Mon 1/25

1:45 pm-8:40 am

2 stops33h 55m

$940

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 1/11

2:34 pm-12:35 pm

2 stops31h 01m

Bangkok Suvarnabhumi

Tue 1/19

5:40 pm-8:40 am

2 stops30h 00m

$940

Quickest round-trip

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

$960

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 10/21

6:45 am-11:35 pm

2 stops26h 50m

Bangkok Suvarnabhumi

Wed 10/28

11:15 pm-2:51 pm

2 stops29h 36m

$978

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 1/20

7:09 am-5:05 am

2 stops30h 56m

Bangkok Suvarnabhumi

Wed 1/27

7:55 am-1:29 pm

2 stops20h 34m

$982

PortlandChiang Mai

PDX Portland - CNX Chiang Mai

PDXCNX

Portland

Mon 2/22

6:40 am-10:45 pm

2 stops25h 05m

Chiang Mai

Wed 2/24

12:20 am-7:28 pm

2 stops34h 08m

$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 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 $1,149 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 $1,042 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	$435
Fastest flight time	23h 10m
Direct flights	None

The best one-way flight to Thailand from Portland in the past 72 hours is $435. 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 8,548 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,473 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 1,596 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 1,910 reviews	Search Japan Airlines flights
Korean Air	PriceFrom $845	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
United Airlines	PriceFrom $872	Free Cancellation	Rating 7.4 10,173 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 11,593 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.