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 49% 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.

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

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 July 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.

$423 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.

6:40 am - 2:20 pm

PDX

CNX

41h 40m

2 stops

3:35 pm - 4:34 pm

CNX

PDX

39h 59m

2 stops

$936Multiple Airlines

Wed, Oct 28 - Wed, Nov 11

7:15 am - 2:20 pm

PDX

CNX

41h 05m

2 stops

3:35 pm - 11:10 pm

CNX

PDX

46h 35m

2 stops

$940Multiple Airlines

Thu, Oct 29 - Fri, Nov 13

2:49 pm - 2:20 pm

PDX

CNX

57h 31m

2 stops

3:35 pm - 11:10 pm

CNX

PDX

46h 35m

2 stops

$951Multiple Airlines

Wed, Oct 28 - Fri, Nov 13

5:00 pm - 12:35 pm

PDX

BKK

28h 35m

2 stops

5:40 pm - 9:25 am

BKK

PDX

30h 45m

2 stops

$953STARLUX Airlines

Tue, Nov 17 - Tue, Dec 1

7:15 am - 2:20 pm

PDX

CNX

41h 05m

2 stops

3:35 pm - 4:34 pm

CNX

PDX

39h 59m

2 stops

$954Multiple Airlines

Thu, Oct 29 - Wed, Nov 11

9:32 pm - 12:00 pm

PDX

BKK

24h 28m

2 stops

5:50 pm - 9:31 am

BKK

PDX

29h 41m

2 stops

$984STARLUX Airlines

Fri, Sep 25 - Fri, Oct 9

9:29 am - 9:45 pm

PDX

BKK

22h 16m

2 stops

9:40 pm - 2:41 pm

BKK

PDX

31h 01m

2 stops

$994Korean Air

Tue, Sep 1 - Tue, Sep 8

7:09 am - 4:50 pm

PDX

UTP

43h 41m

3 stops

1:00 pm - 7:50 pm

UTP

PDX

44h 50m

3 stops

$1,368Qatar Airways

Wed, Sep 2 - Wed, Sep 30

7:09 am - 4:50 pm

PDX

UTP

43h 41m

3 stops

1:00 pm - 4:50 pm

UTP

PDX

41h 50m

3 stops

$1,408Qatar Airways

Wed, Sep 2 - Sun, Sep 27

7:30 pm - 9:10 pm

PDX

USM

35h 40m

2 stops

1:30 pm - 5:40 pm

USM

PDX

42h 10m

2 stops

$2,167British Airways

Wed, Oct 7 - Sun, Oct 11

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Qatar Airways flights from Portland to Thailand

Our best Qatar Airways deals on Portland to Thailand flight tickets

Qatar Airways

Aug 27

PDX11:48 amPortland

28h 32m

2 stops

BKK6:20 amBangkok Suvarnabhumi

Sep 9

BKK3:00 amBangkok Suvarnabhumi

30h 50m

2 stops

PDX7:50 pmPortland

$1,040

Qatar Airways

Aug 20

PDX11:48 amPortland

29h 47m

2 stops

BKK7:35 amBangkok Suvarnabhumi

Oct 13

BKK2:30 amBangkok Suvarnabhumi

28h 30m

2 stops

PDX5:00 pmPortland

$1,049

Qatar Airways

Aug 21

PDX6:20 amPortland

34h 00m

2 stops

BKK6:20 amBangkok Suvarnabhumi

Oct 14

BKK3:00 amBangkok Suvarnabhumi

28h 00m

2 stops

PDX5:00 pmPortland

$1,089

Korean Air flights from Portland to Thailand

Our best Korean Air deals on Portland to Thailand flight tickets

Korean Air

Sep 1

PDX9:29 amPortland

22h 16m

2 stops

BKK9:45 pmBangkok Suvarnabhumi

Sep 8

BKK9:40 pmBangkok Suvarnabhumi

31h 01m

2 stops

PDX2:41 pmPortland

$994

Korean Air

Jul 20

PDX6:30 amPortland

27h 05m

2 stops

BKK11:35 pmBangkok Suvarnabhumi

Aug 30

BKK2:35 amBangkok Suvarnabhumi

27h 58m

2 stops

PDX4:33 pmPortland

$1,051

Korean Air

Oct 26

PDX9:31 amPortland

21h 59m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Nov 15

BKK12:55 amBangkok Suvarnabhumi

30h 39m

2 stops

PDX4:34 pmPortland

$1,082

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 10/28

6:40 am-2:20 pm

2 stops41h 40m

Chiang Mai

Wed 11/11

3:35 pm-4:34 pm

2 stops39h 59m

$936

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 10/29

7:15 am-2:20 pm

2 stops41h 05m

Chiang Mai

Fri 11/13

3:35 pm-11:10 pm

2 stops46h 35m

$940

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 10/28

2:49 pm-2:20 pm

2 stops57h 31m

Chiang Mai

Fri 11/13

3:35 pm-11:10 pm

2 stops46h 35m

$951

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 11/17

5:00 pm-12:35 pm

2 stops28h 35m

Bangkok Suvarnabhumi

Tue 12/1

5:40 pm-9:25 am

2 stops30h 45m

$953

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 10/29

7:15 am-2:20 pm

2 stops41h 05m

Chiang Mai

Wed 11/11

3:35 pm-4:34 pm

2 stops39h 59m

$954

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 9/25

9:32 pm-12:00 pm

2 stops24h 28m

Bangkok Suvarnabhumi

Fri 10/9

5:50 pm-9:31 am

2 stops29h 41m

$984

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

9:29 am-9:45 pm

2 stops22h 16m

Bangkok Suvarnabhumi

Tue 9/8

9:40 pm-2:41 pm

2 stops31h 01m

$994

PortlandRayong

PDX - UTP

PDXUTP

Portland

Wed 9/2

7:09 am-4:50 pm

3 stops43h 41m

Utapao Rayong Pattaya

Wed 9/30

1:00 pm-7:50 pm

3 stops44h 50m

$1,368

PortlandRayong

PDX - UTP

PDXUTP

Portland

Wed 9/2

7:09 am-4:50 pm

3 stops43h 41m

Utapao Rayong Pattaya

Sun 9/27

1:00 pm-4:50 pm

3 stops41h 50m

$1,408

PortlandKo Samui

PDX - USM

PDXUSM

Portland

Wed 10/7

7:30 pm-9:10 pm

2 stops35h 40m

Ko Samui

Sun 10/11

1:30 pm-5:40 pm

2 stops42h 10m

$2,167

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 $914. If you are unable to visit Thailand during the month of April, then departing from Portland during the month August 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 week ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,117 when searching week 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 $960 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 16% 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 20m
Direct flights	None

The fastest flight from Portland to Thailand takes 22h 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 July 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 $99	Free Cancellation	Rating 7.8 8,476 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,415 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.8 360 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,573 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 834 reviews	Search China Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,877 reviews	Search Japan Airlines flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 10,006 reviews	Search United Airlines flights
Korean Air	PriceFrom $845	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
ANA	PriceFrom $890	Free Cancellation	Rating 8.3 1,272 reviews	Search ANA flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,500 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.