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

ANA and United Airlines 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

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

3:33 pm - 4:40 pm

PDX

BKK

35h 07m

2 stops

5:50 pm - 10:50 am

BKK

PDX

31h 00m

2 stops

$995STARLUX Airlines

Tue, Sep 8 - Sun, Sep 13

10:33 am - 12:00 pm

PDX

BKK

35h 27m

2 stops

5:50 pm - 9:25 am

BKK

PDX

29h 35m

2 stops

$996STARLUX Airlines

Tue, Sep 8 - Sun, Sep 13

1:59 pm - 7:45 am

PDX

HKT

27h 46m

2 stops

9:20 am - 10:01 pm

HKT

PDX

50h 41m

2 stops

$1,109Qatar Airways

Wed, Sep 2 - Wed, Sep 16

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

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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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

Sep 21

PDX7:00 amPortland

26h 55m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Oct 14

BKK9:35 amBangkok Suvarnabhumi

25h 25m

2 stops

PDX9:00 pmPortland

$1,002

United Airlines

Aug 2

PDX7:00 amPortland

26h 55m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

Sep 2

BKK7:00 amBangkok Suvarnabhumi

22h 05m

2 stops

PDX3:05 pmPortland

$1,003

STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Oct 5

PDX2:34 pmPortland

31h 26m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Oct 20

BKK1:10 pmBangkok Suvarnabhumi

34h 21m

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

31h 07m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Sep 29

BKK1:10 pmBangkok Suvarnabhumi

35h 40m

2 stops

PDX10:50 amPortland

$997

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

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

Tue 9/8

3:33 pm-4:40 pm

2 stops35h 07m

Bangkok Suvarnabhumi

Sun 9/13

5:50 pm-10:50 am

2 stops31h 00m

$995

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/8

10:33 am-12:00 pm

2 stops35h 27m

Bangkok Suvarnabhumi

Sun 9/13

5:50 pm-9:25 am

2 stops29h 35m

$996

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Wed 9/2

1:59 pm-7:45 am

2 stops27h 46m

Phuket City

Wed 9/16

9:20 am-10:01 pm

2 stops50h 41m

$1,109

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

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	22h 50m
Direct flights	None

The fastest flight from Portland to Thailand takes 22h 50m

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 7.8 8,402 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,371 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 337 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,543 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,839 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 1,232 reviews	Search ANA flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 9,811 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,472 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.