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 37% 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?

Cathay Pacific, United Airlines, and China 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 March 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.

$344 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.

5:55 pm - 10:20 am

PDX

CNX

26h 25m

2 stops

11:20 am - 9:46 am

CNX

PDX

36h 26m

2 stops

$810Multiple Airlines

Tue, Sep 1 - Thu, Sep 10

2:50 pm - 12:10 pm

PDX

BKK

31h 20m

2 stops

1:20 pm - 9:47 am

BKK

PDX

34h 27m

2 stops

$835Multiple Airlines

Tue, May 5 - Tue, May 19

5:49 pm - 12:10 pm

PDX

BKK

28h 21m

2 stops

5:30 pm - 11:04 pm

BKK

PDX

19h 34m

2 stops

$838China Airlines

Tue, May 12 - Mon, Jun 8

5:51 pm - 9:45 am

PDX

BKK

25h 54m

2 stops

5:30 pm - 9:47 am

BKK

PDX

30h 17m

2 stops

$839Multiple Airlines

Tue, May 5 - Sat, Jun 6

5:49 pm - 9:45 am

PDX

BKK

25h 56m

2 stops

5:30 pm - 9:29 am

BKK

PDX

29h 59m

2 stops

$840Multiple Airlines

Wed, May 6 - Mon, May 18

5:34 pm - 12:20 pm

PDX

BKK

28h 46m

2 stops

3:30 pm - 9:25 am

BKK

PDX

31h 55m

2 stops

$844Singapore Airlines

Mon, Aug 17 - Mon, Aug 31

5:49 pm - 12:10 pm

PDX

BKK

28h 21m

2 stops

5:30 pm - 8:02 am

BKK

PDX

28h 32m

2 stops

$854China Airlines

Tue, May 12 - Mon, Jun 8

6:30 am - 12:40 am

PDX

BKK

28h 10m

2 stops

5:05 am - 7:26 pm

BKK

PDX

28h 21m

2 stops

$864China Eastern

Thu, Aug 6 - Thu, Aug 27

5:49 pm - 5:20 pm

PDX

HKT

33h 31m

2 stops

11:50 am - 4:30 pm

HKT

PDX

42h 40m

2 stops

$918Cathay Pacific

Mon, Apr 13 - Mon, Apr 20

7:00 am - 5:20 pm

PDX

HKT

44h 20m

2 stops

11:50 am - 9:35 pm

HKT

PDX

23h 45m

2 stops

$1,037Cathay Pacific

Fri, May 1 - Thu, May 14

China Airlines flights from Portland to Thailand

Our best China Airlines deals on Portland to Thailand flight tickets

China Airlines

May 12

PDX5:49 pmPortland

28h 21m

2 stops

BKK12:10 pmBangkok Suvarnabhumi

Jun 8

BKK5:30 pmBangkok Suvarnabhumi

19h 34m

2 stops

PDX11:04 pmPortland

$838

China Airlines

May 12

PDX5:49 pmPortland

28h 21m

2 stops

BKK12:10 pmBangkok Suvarnabhumi

Jun 8

BKK5:30 pmBangkok Suvarnabhumi

28h 32m

2 stops

PDX8:02 amPortland

$854

China Airlines

Apr 28

PDX1:52 pmPortland

29h 53m

2 stops

BKK9:45 amBangkok Suvarnabhumi

May 30

BKK2:40 amBangkok Suvarnabhumi

45h 07m

2 stops

PDX9:47 amPortland

$869

STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Aug 21

PDX8:59 pmPortland

25h 01m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Sep 7

BKK1:10 pmBangkok Suvarnabhumi

25h 00m

2 stops

PDX12:10 amPortland

$918

STARLUX Airlines

Mar 10

PDX2:47 pmPortland

31h 48m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Mar 17

BKK5:40 pmBangkok Suvarnabhumi

30h 10m

2 stops

PDX9:50 amPortland

$946

STARLUX Airlines

Mar 10

PDX9:19 pmPortland

25h 16m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

May 8

BKK5:50 pmBangkok Suvarnabhumi

39h 44m

2 stops

PDX7:34 pmPortland

$974

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 9/1

5:55 pm-10:20 am

2 stops26h 25m

Chiang Mai

Thu 9/10

11:20 am-9:46 am

2 stops36h 26m

$810

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/5

2:50 pm-12:10 pm

2 stops31h 20m

Bangkok Suvarnabhumi

Tue 5/19

1:20 pm-9:47 am

2 stops34h 27m

$835

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/12

5:49 pm-12:10 pm

2 stops28h 21m

Bangkok Suvarnabhumi

Mon 6/8

5:30 pm-11:04 pm

2 stops19h 34m

$838

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/5

5:51 pm-9:45 am

2 stops25h 54m

Bangkok Suvarnabhumi

Sat 6/6

5:30 pm-9:47 am

2 stops30h 17m

$839

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 5/6

5:49 pm-9:45 am

2 stops25h 56m

Bangkok Suvarnabhumi

Mon 5/18

5:30 pm-9:29 am

2 stops29h 59m

$840

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 8/17

5:34 pm-12:20 pm

2 stops28h 46m

Bangkok Suvarnabhumi

Mon 8/31

3:30 pm-9:25 am

2 stops31h 55m

$844

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/12

5:49 pm-12:10 pm

2 stops28h 21m

Bangkok Suvarnabhumi

Mon 6/8

5:30 pm-8:02 am

2 stops28h 32m

$854

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/6

6:30 am-12:40 am

2 stops28h 10m

Bangkok Suvarnabhumi

Thu 8/27

5:05 am-7:26 pm

2 stops28h 21m

$864

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Mon 4/13

5:49 pm-5:20 pm

2 stops33h 31m

Phuket City

Mon 4/20

11:50 am-4:30 pm

2 stops42h 40m

$918

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Fri 5/1

7:00 am-5:20 pm

2 stops44h 20m

Phuket City

Thu 5/14

11:50 am-9:35 pm

2 stops23h 45m

$1,037

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 September is, on average, the cheapest month to fly to Thailand from Portland, with most prices found around $904. If you are unable to visit Thailand during the month of September, then departing from Portland during the month March is also very affordable. Most momondo users find prices during this month for around $927.

How far in advance should I book a flight 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 $1,060 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 $887 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 35m
Direct flights	None

The fastest flight from Portland to Thailand takes 22h 35m

There are no direct flights from Portland to Thailand. There are no popular flight routes from Portland to Thailand.

Search flight deals

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 March 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 8,271 reviews	Search Delta flights
Cathay Pacific	PriceFrom $669	Free Cancellation	Rating 7.6 1,200 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $757	Free Cancellation	Rating 8.9 279 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,471 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,727 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 809 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.4 1,116 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,202 reviews	Search Korean Air flights
United Airlines	PriceFrom $821	Free Cancellation	Rating 7.4 9,408 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.4 1,370 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.