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

Delta, Korean Air, and Cathay Pacific are the most popular carriers operating from Portland to Thailand

What airlines fly to Thailand?

Air Canada, United Airlines and STARLUX 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 52% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 10 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 October 2026, there are 10 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.

$445 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.

5:45 pm - 8:55 amPDX Portland-BKK Bangkok Suvarnabhumi

24h 10m2 stops Seattle/Tacoma Intl Manila Ninoy Aquino Intl

11:40 pm - 9:54 pmBKK Bangkok Suvarnabhumi-PDX Portland

37h 14m2 stops Manila Ninoy Aquino Intl Seattle/Tacoma Intl

$920Multiple Airlines

Mon, Nov 16 - Thu, Nov 26

7:20 am - 10:45 pmPDX Portland-CNX Chiang Mai

24h 25m2 stops Los Angeles Incheon Intl

12:20 am - 4:59 pmCNX Chiang Mai-PDX Portland

31h 39m2 stops Incheon Intl Seattle/Tacoma Intl

$939Korean Air

Tue, Jan 26 - Tue, Feb 16

5:30 am - 12:20 amPDX Portland-BKK Bangkok Suvarnabhumi

28h 50m2 stops Seattle/Tacoma Intl Incheon Intl

9:40 pm - 6:43 pmBKK Bangkok Suvarnabhumi-PDX Portland

35h 03m2 stops Incheon Intl Seattle/Tacoma Intl

$962Delta

Tue, Mar 16 - Mon, Mar 29

9:45 am - 11:05 pmPDX Portland-BKK Bangkok Suvarnabhumi

22h 20m2 stops Seattle/Tacoma Intl Incheon Intl

9:40 pm - 6:58 pmBKK Bangkok Suvarnabhumi-PDX Portland

36h 18m2 stops Incheon Intl Seattle/Tacoma Intl

$962Delta

Tue, Jan 19 - Mon, Feb 1

7:40 pm - 10:45 pmPDX Portland-CNX Chiang Mai

36h 05m2 stops Seattle/Tacoma Intl Incheon Intl

12:20 am - 4:59 pmCNX Chiang Mai-PDX Portland

31h 39m2 stops Incheon Intl Seattle/Tacoma Intl

$968Korean Air

Tue, Feb 16 - Mon, Feb 22

10:46 am - 1:40 pmPDX Portland-BKK Bangkok Suvarnabhumi

35h 54m2 stops Los Angeles Beijing Capital

3:15 pm - 9:34 amBKK Bangkok Suvarnabhumi-PDX Portland

33h 19m2 stops Beijing Capital Los Angeles

$973Multiple Airlines

Fri, Nov 27 - Fri, Dec 11

7:00 am - 5:00 amPDX Portland-BKK Bangkok Suvarnabhumi

31h 00m2 stops Los Angeles Osaka Kansai Intl

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

20h 53m2 stops Tokyo Narita San Francisco

$1,029Japan Airlines

Wed, Dec 2 - Wed, Feb 3

7:00 am - 5:00 amPDX Portland-BKK Bangkok Suvarnabhumi

31h 00m2 stops Los Angeles Osaka Kansai Intl

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

20h 53m2 stops Tokyo Narita San Francisco

$1,077Japan Airlines

Mon, Jan 11 - Tue, Jan 19

9:24 am - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

34h 11m3 stops San Francisco Los Angeles Hong Kong Intl

9:35 am - 8:33 pmBKK Bangkok Suvarnabhumi-PDX Portland

24h 58m2 stops Tokyo Haneda San Francisco

$1,149United Airlines

Wed, Apr 14 - Wed, Apr 21

9:24 am - 9:35 amPDX Portland-BKK Bangkok Suvarnabhumi

34h 11m3 stops San Francisco Los Angeles Hong Kong Intl

9:35 am - 8:33 pmBKK Bangkok Suvarnabhumi-PDX Portland

24h 58m2 stops Tokyo Haneda San Francisco

$1,149United Airlines

Wed, Mar 31 - Mon, Apr 12

Cheap last minute flights

Enter your travel dates to find the best prices.

5:04 pm - 2:30 pmPDX Portland-HKT Phuket City

54h 26m2 stops Los Angeles Shanghai Pu Dong

12:05 am - 8:47 pmHKT Phuket City-PDX Portland

35h 42m2 stops Shanghai Pu Dong San Francisco

$1,094Multiple Airlines

Wed, Nov 4 - Fri, Nov 13

6:04 pm - 4:30 pmPDX Portland-BKK Bangkok Suvarnabhumi

31h 26m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

5:40 pm - 9:31 amBKK Bangkok Suvarnabhumi-PDX Portland

30h 51m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$1,098Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

2:30 pm - 12:35 pmPDX Portland-BKK Bangkok Suvarnabhumi

32h 05m2 stops Los Angeles Taipei City Taiwan Taoyuan Intl

5:40 pm - 9:31 amBKK Bangkok Suvarnabhumi-PDX Portland

30h 51m2 stops Taipei City Taiwan Taoyuan Intl Los Angeles

$1,098Multiple Airlines

Sat, Oct 31 - Mon, Nov 2

7:15 am - 9:25 pmPDX Portland-HKT Phuket City

47h 10m2 stops Los Angeles Incheon Intl

10:55 pm - 1:35 pmHKT Phuket City-PDX Portland

53h 40m2 stops Incheon Intl Seattle/Tacoma Intl

$1,129Korean Air

Wed, Nov 4 - Sat, Nov 14

3:40 pm - 11:30 amPDX Portland-BKK Bangkok Suvarnabhumi

28h 50m3 stops San Francisco Los Angeles Hong Kong Intl

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

22h 27m2 stops Tokyo Narita San Francisco

$1,155United Airlines

Tue, Nov 3 - Tue, Nov 10

7:10 am - 11:30 amPDX Portland-BKK Bangkok Suvarnabhumi

37h 20m3 stops San Francisco Los Angeles Hong Kong Intl

4:55 pm - 12:15 pmBKK Bangkok Suvarnabhumi-PDX Portland

34h 20m2 stops Hong Kong Intl San Francisco

$1,171United Airlines

Mon, Nov 2 - Tue, Dec 1

10:59 am - 11:30 amPDX Portland-BKK Bangkok Suvarnabhumi

57h 31m3 stops San Francisco Los Angeles Hong Kong Intl

4:55 pm - 10:18 amBKK Bangkok Suvarnabhumi-PDX Portland

32h 23m3 stops Hong Kong Intl Los Angeles San Francisco

$1,215United Airlines

Sun, Nov 1 - Sat, Nov 7

7:15 pm - 5:20 amPDX Portland-BKK Bangkok Suvarnabhumi

20h 05m1 stop Vancouver Intl

8:25 am - 9:26 amBKK Bangkok Suvarnabhumi-PDX Portland

40h 01m1 stop Vancouver Intl

$1,277Air Canada

Sat, Oct 31 - Mon, Nov 9

7:15 pm - 5:20 amPDX Portland-BKK Bangkok Suvarnabhumi

20h 05m1 stop Vancouver Intl

8:25 am - 9:26 amBKK Bangkok Suvarnabhumi-PDX Portland

40h 01m1 stop Vancouver Intl

$1,279Air Canada

Sat, Oct 31 - Tue, Nov 10

7:15 pm - 5:20 amPDX Portland-BKK Bangkok Suvarnabhumi

20h 05m1 stop Vancouver Intl

8:25 am - 9:26 amBKK Bangkok Suvarnabhumi-PDX Portland

40h 01m1 stop Vancouver Intl

$1,280Air Canada

Sat, Oct 31 - Sun, Nov 8

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Delta flights from Portland to Thailand

Our best Delta deals on Portland to Thailand flight tickets

Delta

Jan 19

PDX5:40 amPortland

27h 40m

2 stops

BKK12:20 amBangkok Suvarnabhumi

Feb 1

BKK9:40 pmBangkok Suvarnabhumi

34h 26m

2 stops

PDX5:06 pmPortland

$962

Delta

Jan 17

PDX5:48 pmPortland

38h 17m

2 stops

BKK11:05 pmBangkok Suvarnabhumi

Feb 3

BKK9:40 pmBangkok Suvarnabhumi

31h 29m

2 stops

PDX2:09 pmPortland

$968

Delta

Jan 16

PDX9:45 amPortland

22h 20m

2 stops

BKK11:05 pmBangkok Suvarnabhumi

Feb 4

BKK9:50 amBangkok Suvarnabhumi

19h 19m

2 stops

PDX2:09 pmPortland

$1,018

Korean Air flights from Portland to Thailand

Our best Korean Air deals on Portland to Thailand flight tickets

Korean Air

Jan 26

PDX7:20 amPortland

24h 25m

2 stops

CNX10:45 pmChiang Mai

Feb 16

CNX12:20 amChiang Mai

31h 39m

2 stops

PDX4:59 pmPortland

$939

Korean Air

Feb 16

PDX7:40 pmPortland

36h 05m

2 stops

CNX10:45 pmChiang Mai

Feb 22

CNX12:20 amChiang Mai

31h 39m

2 stops

PDX4:59 pmPortland

$968

Korean Air

Nov 13

PDX7:00 amPortland

23h 30m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Nov 24

BKK9:40 pmBangkok Suvarnabhumi

33h 41m

2 stops

PDX4:21 pmPortland

$1,024

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 11/16

5:45 pm-8:55 am

2 stops24h 10m

Bangkok Suvarnabhumi

Thu 11/26

11:40 pm-9:54 pm

2 stops37h 14m

$920

PortlandChiang Mai

PDX Portland - CNX Chiang Mai

PDXCNX

Portland

Tue 1/26

7:20 am-10:45 pm

2 stops24h 25m

Chiang Mai

Tue 2/16

12:20 am-4:59 pm

2 stops31h 39m

$939

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 3/16

5:30 am-12:20 am

2 stops28h 50m

Bangkok Suvarnabhumi

Mon 3/29

9:40 pm-6:43 pm

2 stops35h 03m

$962

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Tue 1/19

9:45 am-11:05 pm

2 stops22h 20m

Bangkok Suvarnabhumi

Mon 2/1

9:40 pm-6:58 pm

2 stops36h 18m

$962

PortlandChiang Mai

PDX Portland - CNX Chiang Mai

PDXCNX

Portland

Tue 2/16

7:40 pm-10:45 pm

2 stops36h 05m

Chiang Mai

Mon 2/22

12:20 am-4:59 pm

2 stops31h 39m

$968

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Fri 11/27

10:46 am-1:40 pm

2 stops35h 54m

Bangkok Suvarnabhumi

Fri 12/11

3:15 pm-9:34 am

2 stops33h 19m

$973

Quickest round-trip

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 12/2

7:00 am-5:00 am

2 stops31h 00m

Bangkok Suvarnabhumi

Wed 2/3

7:55 am-1:48 pm

2 stops20h 53m

$1,029

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Mon 1/11

7:00 am-5:00 am

2 stops31h 00m

Bangkok Suvarnabhumi

Tue 1/19

7:55 am-1:48 pm

2 stops20h 53m

$1,077

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 4/14

9:24 am-9:35 am

3 stops34h 11m

Bangkok Suvarnabhumi

Wed 4/21

9:35 am-8:33 pm

2 stops24h 58m

$1,149

PortlandBangkok

PDX Portland - BKK Bangkok Suvarnabhumi

PDXBKK

Portland

Wed 3/31

9:24 am-9:35 am

3 stops34h 11m

Bangkok Suvarnabhumi

Mon 4/12

9:35 am-8:33 pm

2 stops24h 58m

$1,149

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 $964. 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 $983.

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 $1,164 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 $985 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 15% 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	$445
Fastest flight time	22h 25m
Direct flights	None

The best one-way flight to Thailand from Portland in the past 72 hours is $445. The best round-trip flight deal from Portland to Thailand found on momondo in the last 72 hours is $920.

The fastest flight from Portland to Thailand takes 22h 25m

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 October 2026, there are 10 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 8,695 reviews	Search Delta flights
STARLUX Airlines	PriceFrom $753	Free Cancellation	Rating 8.8 408 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,631 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 854 reviews	Search China Airlines flights
Korean Air	PriceFrom $862	Free Cancellation	Rating 8.4 1,219 reviews	Search Korean Air flights
United Airlines	PriceFrom $872	Free Cancellation	Rating 7.3 10,453 reviews	Search United Airlines flights
Air Canada	PriceFrom $896	Free Cancellation	Rating 7.1 11,834 reviews	Search Air Canada flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,552 reviews	Search EVA Air flights
Japan Airlines	PriceFrom $944	Free Cancellation	Rating 8.3 1,954 reviews	Search Japan Airlines flights
ANA	PriceFrom $1,026	Free Cancellation	Rating 8.3 1,338 reviews	Search ANA 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.