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

Singapore Airlines, United Airlines, and Qatar Airways 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 40% 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 May 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.

$468 Cheap Flights from Portland to Thailand in 2026

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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.

5:35 pm - 11:00 am

PDX

BKK

27h 25m

2 stops

6:30 pm - 12:22 pm

BKK

PDX

31h 52m

2 stops

$914Singapore Airlines

Tue, Sep 22 - Wed, Oct 7

5:35 pm - 11:00 am

PDX

BKK

27h 25m

2 stops

3:30 pm - 9:25 am

BKK

PDX

31h 55m

2 stops

$947Singapore Airlines

Tue, Sep 22 - Sun, Sep 27

5:35 pm - 11:00 am

PDX

BKK

27h 25m

2 stops

9:15 pm - 12:22 pm

BKK

PDX

29h 07m

2 stops

$994Multiple Airlines

Wed, Sep 9 - Wed, Oct 14

10:45 am - 6:20 am

PDX

BKK

29h 35m

2 stops

2:30 am - 7:50 pm

BKK

PDX

31h 20m

2 stops

$1,014Multiple Airlines

Wed, Sep 2 - Tue, Sep 8

11:45 am - 12:55 pm

PDX

BKK

35h 10m

2 stops

3:00 am - 4:37 pm

BKK

PDX

27h 37m

2 stops

$1,025Qatar Airways

Wed, Sep 23 - Wed, Oct 7

12:03 pm - 7:45 am

PDX

HKT

29h 42m

2 stops

9:20 am - 4:55 pm

HKT

PDX

45h 35m

2 stops

$1,128Qatar Airways

Sun, Aug 2 - Mon, Aug 10

1:03 pm - 8:45 pm

PDX

DMK

41h 42m

2 stops

12:10 pm - 6:15 pm

DMK

PDX

44h 05m

2 stops

$1,742Emirates

Tue, Sep 29 - Mon, Oct 19

1:03 pm - 8:45 pm

PDX

DMK

41h 42m

2 stops

11:50 pm - 6:15 pm

DMK

PDX

32h 25m

2 stops

$1,791Emirates

Thu, Sep 24 - Fri, Oct 9

7:30 pm - 12:00 pm

PDX

KBV

50h 30m

2 stops

1:00 pm - 5:40 pm

KBV

PDX

66h 40m

2 stops

$2,626Malaysia Airlines

Thu, Sep 17 - Mon, Sep 21

7:30 pm - 12:00 pm

PDX

KBV

50h 30m

2 stops

1:00 pm - 5:40 pm

KBV

PDX

66h 40m

2 stops

$2,710Malaysia Airlines

Thu, Sep 17 - Mon, Sep 21

Singapore Airlines flights from Portland to Thailand

Our best Singapore Airlines deals on Portland to Thailand flight tickets

Singapore Airlines

Sep 29

PDX5:05 amPortland

24h 55m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Oct 19

BKK9:15 pmBangkok Suvarnabhumi

30h 12m

2 stops

PDX1:27 pmPortland

$880

Singapore Airlines

Sep 29

PDX5:05 amPortland

24h 55m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Oct 20

BKK12:15 pmBangkok Suvarnabhumi

36h 35m

2 stops

PDX10:50 amPortland

$914

Singapore Airlines

Sep 29

PDX5:35 pmPortland

27h 25m

2 stops

BKK11:00 amBangkok Suvarnabhumi

Nov 11

BKK9:10 pmBangkok Suvarnabhumi

30h 38m

2 stops

PDX12:48 pmPortland

$939

Qatar Airways flights from Portland to Thailand

Our best Qatar Airways deals on Portland to Thailand flight tickets

Qatar Airways

May 6

PDX2:45 pmPortland

26h 05m

2 stops

BKK6:50 amBangkok Suvarnabhumi

May 17

BKK2:30 amBangkok Suvarnabhumi

32h 58m

2 stops

PDX9:28 pmPortland

$1,015

Qatar Airways

Sep 23

PDX11:45 amPortland

35h 10m

2 stops

BKK12:55 pmBangkok Suvarnabhumi

Oct 7

BKK3:00 amBangkok Suvarnabhumi

27h 37m

2 stops

PDX4:37 pmPortland

$1,025

Qatar Airways

May 6

PDX8:45 amPortland

39h 25m

2 stops

BKK2:10 pmBangkok Suvarnabhumi

May 17

BKK1:00 amBangkok Suvarnabhumi

34h 28m

2 stops

PDX9:28 pmPortland

$1,039

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/22

5:35 pm-11:00 am

2 stops27h 25m

Bangkok Suvarnabhumi

Wed 10/7

6:30 pm-12:22 pm

2 stops31h 52m

$914

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/22

5:35 pm-11:00 am

2 stops27h 25m

Bangkok Suvarnabhumi

Sun 9/27

3:30 pm-9:25 am

2 stops31h 55m

$947

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/9

5:35 pm-11:00 am

2 stops27h 25m

Bangkok Suvarnabhumi

Wed 10/14

9:15 pm-12:22 pm

2 stops29h 07m

$994

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/2

10:45 am-6:20 am

2 stops29h 35m

Bangkok Suvarnabhumi

Tue 9/8

2:30 am-7:50 pm

2 stops31h 20m

$1,014

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/23

11:45 am-12:55 pm

2 stops35h 10m

Bangkok Suvarnabhumi

Wed 10/7

3:00 am-4:37 pm

2 stops27h 37m

$1,025

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 8/2

12:03 pm-7:45 am

2 stops29h 42m

Phuket City

Mon 8/10

9:20 am-4:55 pm

2 stops45h 35m

$1,128

PortlandBangkok

PDX - DMK

PDXDMK

Portland

Tue 9/29

1:03 pm-8:45 pm

2 stops41h 42m

Bangkok Don Mueang Intl

Mon 10/19

12:10 pm-6:15 pm

2 stops44h 05m

$1,742

PortlandBangkok

PDX - DMK

PDXDMK

Portland

Thu 9/24

1:03 pm-8:45 pm

2 stops41h 42m

Bangkok Don Mueang Intl

Fri 10/9

11:50 pm-6:15 pm

2 stops32h 25m

$1,791

PortlandKrabi

PDX - KBV

PDXKBV

Portland

Thu 9/17

7:30 pm-12:00 pm

2 stops50h 30m

Krabi

Mon 9/21

1:00 pm-5:40 pm

2 stops66h 40m

$2,626

PortlandKrabi

PDX - KBV

PDXKBV

Portland

Thu 9/17

7:30 pm-12:00 pm

2 stops50h 30m

Krabi

Mon 9/21

1:00 pm-5:40 pm

2 stops66h 40m

$2,710

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 $1,059 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 $961 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 22% 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 30m
Direct flights	None

The fastest flight from Portland to Thailand takes 22h 30m

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 May 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 8,459 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,313 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 308 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,508 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,805 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 819 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.3 1,205 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,216 reviews	Search Korean Air flights
United Airlines	PriceFrom $821	Free Cancellation	Rating 7.4 9,683 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,442 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.