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

United Airlines and Air Canada 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 45% 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 June 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.

$447 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.

6:06 am - 8:00 pm

PDX

BKK

23h 54m

2 stops

8:00 pm - 11:19 am

BKK

PDX

30h 19m

2 stops

$881Multiple Airlines

Tue, Oct 27 - Tue, Nov 17

6:00 pm - 11:00 am

PDX

BKK

27h 00m

2 stops

9:15 pm - 1:27 pm

BKK

PDX

30h 12m

2 stops

$915Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

2:34 pm - 8:05 am

PDX

BKK

27h 31m

2 stops

12:00 pm - 11:54 pm

BKK

PDX

26h 54m

2 stops

$948Multiple Airlines

Sun, Oct 18 - Fri, Dec 11

9:30 pm - 8:00 pm

PDX

BKK

31h 30m

2 stops

8:00 pm - 12:22 pm

BKK

PDX

31h 22m

2 stops

$979Singapore Airlines

Thu, Nov 12 - Thu, Dec 10

3:33 pm - 10:50 am

PDX

HKT

29h 17m

2 stops

8:10 pm - 1:27 pm

HKT

PDX

31h 17m

2 stops

$983Singapore Airlines

Mon, Sep 28 - Mon, Oct 5

10:33 am - 4:40 pm

PDX

BKK

40h 07m

2 stops

5:50 pm - 10:50 am

BKK

PDX

31h 00m

2 stops

$995STARLUX Airlines

Mon, Aug 24 - Tue, Sep 8

9:28 am - 7:45 am

PDX

HKT

32h 17m

2 stops

9:20 am - 5:00 pm

HKT

PDX

45h 40m

2 stops

$1,135Qatar Airways

Wed, Oct 7 - Thu, Oct 15

9:29 pm - 7:45 am

PDX

HKT

44h 16m

2 stops

9:20 am - 5:00 pm

HKT

PDX

45h 40m

2 stops

$1,136Qatar Airways

Thu, Oct 8 - Wed, Oct 14

1:28 pm - 6:20 am

PDX

KBV

49h 52m

2 stops

8:40 pm - 12:36 pm

KBV

PDX

54h 56m

2 stops

$1,450Etihad Airways

Mon, Nov 9 - Tue, Nov 17

1:28 pm - 6:05 pm

PDX

KBV

61h 37m

2 stops

8:40 am - 12:36 pm

KBV

PDX

42h 56m

2 stops

$1,489Etihad Airways

Mon, Nov 9 - Tue, Nov 17

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STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Oct 5

PDX5:00 pmPortland

33h 40m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Oct 20

BKK5:50 pmBangkok Suvarnabhumi

29h 41m

2 stops

PDX9:31 amPortland

$995

STARLUX Airlines

Sep 8

PDX10:33 amPortland

35h 27m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Sep 13

BKK5:50 pmBangkok Suvarnabhumi

29h 35m

2 stops

PDX9:25 amPortland

$996

STARLUX Airlines

Sep 1

PDX2:53 pmPortland

35h 47m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Sep 29

BKK1:10 pmBangkok Suvarnabhumi

34h 15m

2 stops

PDX9:25 amPortland

$997

United Airlines flights from Portland to Thailand

Our best United Airlines deals on Portland to Thailand flight tickets

United Airlines

Sep 19

PDX3:43 pmPortland

46h 52m

2 stops

BKK4:35 amBangkok Suvarnabhumi

Oct 5

BKK9:35 amBangkok Suvarnabhumi

27h 22m

2 stops

PDX10:57 pmPortland

$999

United Airlines

Aug 27

PDX1:03 pmPortland

30h 32m

3 stops

BKK9:35 amBangkok Suvarnabhumi

Sep 10

BKK7:00 amBangkok Suvarnabhumi

27h 59m

2 stops

PDX8:59 pmPortland

$1,005

United Airlines

Nov 11

PDX7:49 pmPortland

24h 36m

2 stops

BKK11:25 amBangkok Suvarnabhumi

Feb 4

BKK9:10 amBangkok Suvarnabhumi

26h 23m

2 stops

PDX8:33 pmPortland

$1,007

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 10/27

6:06 am-8:00 pm

2 stops23h 54m

Bangkok Suvarnabhumi

Tue 11/17

8:00 pm-11:19 am

2 stops30h 19m

$881

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 10/14

6:00 pm-11:00 am

2 stops27h 00m

Bangkok Suvarnabhumi

Wed 10/21

9:15 pm-1:27 pm

2 stops30h 12m

$915

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 10/18

2:34 pm-8:05 am

2 stops27h 31m

Bangkok Suvarnabhumi

Fri 12/11

12:00 pm-11:54 pm

2 stops26h 54m

$948

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 11/12

9:30 pm-8:00 pm

2 stops31h 30m

Bangkok Suvarnabhumi

Thu 12/10

8:00 pm-12:22 pm

2 stops31h 22m

$979

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Mon 9/28

3:33 pm-10:50 am

2 stops29h 17m

Phuket City

Mon 10/5

8:10 pm-1:27 pm

2 stops31h 17m

$983

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 8/24

10:33 am-4:40 pm

2 stops40h 07m

Bangkok Suvarnabhumi

Tue 9/8

5:50 pm-10:50 am

2 stops31h 00m

$995

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Wed 10/7

9:28 am-7:45 am

2 stops32h 17m

Phuket City

Thu 10/15

9:20 am-5:00 pm

2 stops45h 40m

$1,135

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Thu 10/8

9:29 pm-7:45 am

2 stops44h 16m

Phuket City

Wed 10/14

9:20 am-5:00 pm

2 stops45h 40m

$1,136

PortlandKrabi

PDX - KBV

PDXKBV

Portland

Mon 11/9

1:28 pm-6:20 am

2 stops49h 52m

Krabi

Tue 11/17

8:40 pm-12:36 pm

2 stops54h 56m

$1,450

PortlandKrabi

PDX - KBV

PDXKBV

Portland

Mon 11/9

1:28 pm-6:05 pm

2 stops61h 37m

Krabi

Tue 11/17

8:40 am-12:36 pm

2 stops42h 56m

$1,489

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 January is, on average, the cheapest month to fly to Thailand from Portland, with most prices found around $99. If you are unable to visit Thailand during the month of January, then departing from Portland during the month April is also very affordable. Most momondo users find prices during this month for around $139.

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 $1,084 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 $962 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 2% 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	19h 20m
Direct flights	None

The fastest flight from Portland to Thailand takes 19h 20m

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 June 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 7.9 8,393 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,369 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 331 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,539 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,836 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 828 reviews	Search China Airlines flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
ANA	PriceFrom $818	Free Cancellation	Rating 8.3 1,230 reviews	Search ANA flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 9,801 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,470 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.