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 39% 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?

Singapore Airlines and Qatar Airways 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 April 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.

$387 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.

2:36 pm - 7:25 am

PDX

HKT

50h 49m

3 stops

8:45 pm - 11:26 am

HKT

PDX

28h 41m

2 stops

$721Multiple Airlines

Fri, Oct 2 - Sun, Oct 11

2:50 pm - 2:15 pm

PDX

BKK

33h 25m

3 stops

5:55 pm - 4:50 pm

BKK

PDX

36h 55m

3 stops

$849Multiple Airlines

Tue, Apr 28 - Sun, May 31

5:51 pm - 2:15 pm

PDX

BKK

54h 24m

3 stops

5:55 pm - 1:50 pm

BKK

PDX

33h 55m

3 stops

$855Multiple Airlines

Tue, May 12 - Mon, Jun 8

9:45 pm - 7:40 am

PDX

BKK

43h 55m

3 stops

3:15 pm - 1:50 pm

BKK

PDX

36h 35m

3 stops

$857Multiple Airlines

Mon, Jul 20 - Wed, Jul 29

2:50 pm - 10:50 am

PDX

HKT

30h 00m

2 stops

6:00 pm - 12:22 pm

HKT

PDX

32h 22m

2 stops

$956Singapore Airlines

Thu, Oct 1 - Wed, Oct 7

2:50 pm - 8:35 am

PDX

HKT

27h 45m

2 stops

8:10 pm - 4:50 pm

HKT

PDX

34h 40m

2 stops

$996Singapore Airlines

Fri, Oct 2 - Sun, Oct 11

6:30 am - 1:25 pm

PDX

CNX

40h 55m

2 stops

2:55 pm - 4:10 pm

CNX

PDX

39h 15m

2 stops

$1,054China Eastern

Mon, Aug 31 - Mon, Sep 14

5:35 pm - 10:20 am

PDX

CNX

26h 45m

2 stops

11:20 am - 10:27 am

CNX

PDX

37h 07m

2 stops

$1,182China Airlines

Mon, Aug 31 - Sat, Sep 5

9:29 pm - 10:20 am

PDX

CNX

22h 51m

2 stops

11:20 am - 10:27 am

CNX

PDX

37h 07m

2 stops

$1,188China Airlines

Mon, Aug 31 - Sat, Sep 5

7:00 am - 7:40 pm

PDX

USM

46h 40m

2 stops

7:50 am - 8:48 pm

USM

PDX

26h 58m

3 stops

$2,331Cathay Pacific

Mon, Jun 15 - Mon, Jun 22

STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Apr 27

PDX5:49 pmPortland

32h 51m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

May 3

BKK1:10 pmBangkok Suvarnabhumi

34h 28m

2 stops

PDX9:38 amPortland

$1,181

STARLUX Airlines

Apr 30

PDX2:50 pmPortland

31h 10m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

Jun 30

BKK1:10 pmBangkok Suvarnabhumi

34h 11m

2 stops

PDX9:21 amPortland

$1,267

STARLUX Airlines

Apr 29

PDX2:50 pmPortland

31h 10m

2 stops

BKK12:00 pmBangkok Suvarnabhumi

May 2

BKK5:50 pmBangkok Suvarnabhumi

29h 48m

2 stops

PDX9:38 amPortland

$1,292

United Airlines flights from Portland to Thailand

Our best United Airlines deals on Portland to Thailand flight tickets

United Airlines

Apr 30

PDX5:30 amPortland

38h 05m

3 stops

BKK9:35 amBangkok Suvarnabhumi

May 16

BKK3:45 pmBangkok Suvarnabhumi

23h 14m

2 stops

PDX12:59 amPortland

$1,311

United Airlines

May 3

PDX5:30 amPortland

38h 05m

3 stops

BKK9:35 amBangkok Suvarnabhumi

May 18

BKK3:45 pmBangkok Suvarnabhumi

41h 01m

2 stops

PDX6:46 pmPortland

$1,315

United Airlines

Apr 29

PDX7:14 pmPortland

48h 21m

3 stops

BKK9:35 amBangkok Suvarnabhumi

May 16

BKK3:45 pmBangkok Suvarnabhumi

23h 14m

2 stops

PDX12:59 amPortland

$1,324

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Fri 10/2

2:36 pm-7:25 am

3 stops50h 49m

Phuket City

Sun 10/11

8:45 pm-11:26 am

2 stops28h 41m

$721

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 4/28

2:50 pm-2:15 pm

3 stops33h 25m

Bangkok Suvarnabhumi

Sun 5/31

5:55 pm-4:50 pm

3 stops36h 55m

$849

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/12

5:51 pm-2:15 pm

3 stops54h 24m

Bangkok Suvarnabhumi

Mon 6/8

5:55 pm-1:50 pm

3 stops33h 55m

$855

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 7/20

9:45 pm-7:40 am

3 stops43h 55m

Bangkok Suvarnabhumi

Wed 7/29

3:15 pm-1:50 pm

3 stops36h 35m

$857

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Thu 10/1

2:50 pm-10:50 am

2 stops30h 00m

Phuket City

Wed 10/7

6:00 pm-12:22 pm

2 stops32h 22m

$956

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Fri 10/2

2:50 pm-8:35 am

2 stops27h 45m

Phuket City

Sun 10/11

8:10 pm-4:50 pm

2 stops34h 40m

$996

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

6:30 am-1:25 pm

2 stops40h 55m

Chiang Mai

Mon 9/14

2:55 pm-4:10 pm

2 stops39h 15m

$1,054

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

5:35 pm-10:20 am

2 stops26h 45m

Chiang Mai

Sat 9/5

11:20 am-10:27 am

2 stops37h 07m

$1,182

Quickest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

9:29 pm-10:20 am

2 stops22h 51m

Chiang Mai

Sat 9/5

11:20 am-10:27 am

2 stops37h 07m

$1,188

PortlandKo Samui

PDX - USM

PDXUSM

Portland

Mon 6/15

7:00 am-7:40 pm

2 stops46h 40m

Ko Samui

Mon 6/22

7:50 am-8:48 pm

3 stops26h 58m

$2,331

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 $920. If you are unable to visit Thailand during the month of April, 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 $1,057 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 April 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 8,421 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,280 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 299 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,499 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,784 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 817 reviews	Search China Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.4 1,179 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,212 reviews	Search Korean Air flights
United Airlines	PriceFrom $821	Free Cancellation	Rating 7.4 9,604 reviews	Search United Airlines flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,422 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.