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

Qatar Airways 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 41% 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.

$478 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.

2:45 pm - 8:25 am

PDX

BKK

26h 40m

2 stops

9:10 pm - 12:22 pm

BKK

PDX

30h 12m

2 stops

$933Singapore Airlines

Wed, Nov 11 - Mon, Feb 1

5:38 pm - 11:00 am

PDX

BKK

27h 22m

2 stops

9:15 pm - 5:00 pm

BKK

PDX

33h 45m

2 stops

$934Singapore Airlines

Tue, Sep 22 - Wed, Oct 21

5:00 pm - 11:00 am

PDX

BKK

28h 00m

2 stops

9:10 pm - 1:27 pm

BKK

PDX

30h 17m

2 stops

$960Singapore Airlines

Thu, Oct 15 - Mon, Oct 26

5:38 pm - 10:50 am

PDX

HKT

27h 12m

2 stops

8:10 pm - 1:27 pm

HKT

PDX

31h 17m

2 stops

$1,052Multiple Airlines

Tue, Sep 22 - Fri, Oct 2

7:03 am - 1:25 pm

PDX

CNX

40h 22m

2 stops

2:55 pm - 11:59 pm

CNX

PDX

47h 04m

2 stops

$1,069Multiple Airlines

Mon, Aug 31 - Sat, Sep 5

1:59 pm - 7:45 am

PDX

HKT

27h 46m

2 stops

9:20 am - 4:50 pm

HKT

PDX

45h 30m

2 stops

$1,095Qatar Airways

Mon, Aug 24 - Mon, Sep 7

11:42 am - 7:35 am

PDX

HKT

29h 53m

2 stops

2:40 am - 10:15 pm

HKT

PDX

57h 35m

2 stops

$1,139Etihad Airways

Tue, Oct 20 - Fri, Oct 30

12:18 pm - 4:50 pm

PDX

UTP

38h 32m

3 stops

1:00 pm - 6:55 pm

UTP

PDX

43h 55m

3 stops

$1,399Qatar Airways

Fri, Oct 16 - Mon, Oct 26

1:03 pm - 8:45 pm

PDX

DMK

41h 42m

2 stops

10:55 pm - 6:31 pm

DMK

PDX

33h 36m

2 stops

$1,792Emirates

Thu, Oct 15 - Mon, Oct 26

1:14 pm - 11:35 am

PDX

KBV

32h 21m

2 stops

12:40 pm - 8:54 pm

KBV

PDX

46h 14m

2 stops

$12,945Emirates

Mon, Jun 15 - Sun, Jun 21

Singapore Airlines flights from Portland to Thailand

Our best Singapore Airlines deals on Portland to Thailand flight tickets

Singapore Airlines

Nov 11

PDX2:45 pmPortland

26h 40m

2 stops

BKK8:25 amBangkok Suvarnabhumi

Feb 1

BKK9:10 pmBangkok Suvarnabhumi

30h 12m

2 stops

PDX12:22 pmPortland

$933

Singapore Airlines

Sep 22

PDX5:38 pmPortland

27h 22m

2 stops

BKK11:00 amBangkok Suvarnabhumi

Oct 21

BKK9:15 pmBangkok Suvarnabhumi

33h 45m

2 stops

PDX5:00 pmPortland

$934

Singapore Airlines

Oct 15

PDX5:00 pmPortland

28h 00m

2 stops

BKK11:00 amBangkok Suvarnabhumi

Oct 26

BKK9:10 pmBangkok Suvarnabhumi

30h 17m

2 stops

PDX1:27 pmPortland

$960

Air Canada flights from Portland to Thailand

Our best Air Canada deals on Portland to Thailand flight tickets

Air Canada

Sep 14

PDX7:45 pmPortland

19h 20m

1 stop

BKK5:05 amBangkok Suvarnabhumi

Sep 28

BKK7:05 amBangkok Suvarnabhumi

26h 01m

1 stop

PDX7:06 pmPortland

$1,154

Air Canada

Nov 11

PDX3:15 pmPortland

24h 15m

1 stop

BKK6:30 amBangkok Suvarnabhumi

Feb 1

BKK8:15 amBangkok Suvarnabhumi

25h 16m

1 stop

PDX6:31 pmPortland

$1,155

Air Canada

Nov 1

PDX3:15 pmPortland

24h 15m

1 stop

BKK6:30 amBangkok Suvarnabhumi

Nov 9

BKK8:15 amBangkok Suvarnabhumi

16h 11m

1 stop

PDX9:26 amPortland

$1,157

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 11/11

2:45 pm-8:25 am

2 stops26h 40m

Bangkok Suvarnabhumi

Mon 2/1

9:10 pm-12:22 pm

2 stops30h 12m

$933

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/22

5:38 pm-11:00 am

2 stops27h 22m

Bangkok Suvarnabhumi

Wed 10/21

9:15 pm-5:00 pm

2 stops33h 45m

$934

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/15

5:00 pm-11:00 am

2 stops28h 00m

Bangkok Suvarnabhumi

Mon 10/26

9:10 pm-1:27 pm

2 stops30h 17m

$960

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Tue 9/22

5:38 pm-10:50 am

2 stops27h 12m

Phuket City

Fri 10/2

8:10 pm-1:27 pm

2 stops31h 17m

$1,052

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

7:03 am-1:25 pm

2 stops40h 22m

Chiang Mai

Sat 9/5

2:55 pm-11:59 pm

2 stops47h 04m

$1,069

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Mon 8/24

1:59 pm-7:45 am

2 stops27h 46m

Phuket City

Mon 9/7

9:20 am-4:50 pm

2 stops45h 30m

$1,095

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Tue 10/20

11:42 am-7:35 am

2 stops29h 53m

Phuket City

Fri 10/30

2:40 am-10:15 pm

2 stops57h 35m

$1,139

PortlandRayong

PDX - UTP

PDXUTP

Portland

Fri 10/16

12:18 pm-4:50 pm

3 stops38h 32m

Utapao Rayong Pattaya

Mon 10/26

1:00 pm-6:55 pm

3 stops43h 55m

$1,399

PortlandBangkok

PDX - DMK

PDXDMK

Portland

Thu 10/15

1:03 pm-8:45 pm

2 stops41h 42m

Bangkok Don Mueang Intl

Mon 10/26

10:55 pm-6:31 pm

2 stops33h 36m

$1,792

PortlandKrabi

PDX - KBV

PDXKBV

Portland

Mon 6/15

1:14 pm-11:35 am

2 stops32h 21m

Krabi

Sun 6/21

12:40 pm-8:54 pm

2 stops46h 14m

$12,945

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 $1,055 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 $908 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 7% 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	23h 35m
Direct flights	None

The fastest flight from Portland to Thailand takes 23h 35m

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 8,454 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,336 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 316 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,519 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,825 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 826 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.3 1,211 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
United Airlines	PriceFrom $821	Free Cancellation	Rating 7.4 9,736 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,455 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.