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 48% 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?

United Airlines and Singapore 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.

$427 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.

7:35 pm - 12:05 pm

PDX

BKK

25h 30m

2 stops

8:25 am - 9:26 am

BKK

PDX

16h 01m

1 stop

$949Multiple Airlines

Mon, Nov 16 - Tue, Jan 19

7:35 pm - 12:05 pm

PDX

BKK

25h 30m

2 stops

9:40 am - 2:41 pm

BKK

PDX

20h 01m

2 stops

$955Multiple Airlines

Mon, Nov 16 - Tue, Jan 19

5:41 pm - 12:10 pm

PDX

BKK

28h 29m

2 stops

2:35 am - 2:51 pm

BKK

PDX

26h 16m

2 stops

$956Multiple Airlines

Thu, Oct 1 - Wed, Oct 14

7:37 pm - 12:05 pm

PDX

BKK

26h 28m

2 stops

8:25 am - 2:41 pm

BKK

PDX

21h 16m

1 stop

$976Multiple Airlines

Thu, Oct 29 - Fri, Nov 13

11:48 am - 7:45 am

PDX

HKT

29h 57m

2 stops

8:30 pm - 4:50 pm

HKT

PDX

34h 20m

2 stops

$1,103Qatar Airways

Sun, Aug 23 - Tue, Sep 8

6:20 am - 7:45 am

PDX

HKT

35h 25m

2 stops

8:30 pm - 4:50 pm

HKT

PDX

34h 20m

2 stops

$1,104Qatar Airways

Sun, Aug 23 - Tue, Sep 8

9:45 pm - 10:50 am

PDX

HKT

23h 05m

2 stops

11:50 am - 9:25 am

HKT

PDX

35h 35m

2 stops

$1,126Cathay Pacific

Wed, Aug 12 - Wed, Aug 19

7:03 am - 10:25 am

PDX

CNX

37h 22m

2 stops

11:35 am - 8:50 pm

CNX

PDX

23h 15m

2 stops

$1,188EVA Air

Thu, Sep 17 - Wed, Sep 30

7:40 pm - 10:20 am

PDX

CNX

24h 40m

2 stops

11:20 am - 8:54 am

CNX

PDX

35h 34m

2 stops

$1,257China Airlines

Mon, Aug 31 - Sat, Sep 5

2:12 pm - 7:40 pm

PDX

USM

39h 28m

2 stops

11:55 am - 1:51 pm

USM

PDX

63h 56m

2 stops

$1,689Cathay Pacific

Thu, Sep 10 - Mon, Sep 14

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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

PDX5:07 amPortland

36h 28m

2 stops

BKK7:35 amBangkok Suvarnabhumi

Sep 9

BKK2:30 amBangkok Suvarnabhumi

28h 20m

2 stops

PDX4:50 pmPortland

$1,041

Qatar Airways

Sep 8

PDX7:09 amPortland

34h 26m

2 stops

BKK7:35 amBangkok Suvarnabhumi

Sep 22

BKK2:30 amBangkok Suvarnabhumi

28h 20m

2 stops

PDX4:50 pmPortland

$1,043

Qatar Airways

Sep 8

PDX1:59 pmPortland

26h 21m

2 stops

BKK6:20 amBangkok Suvarnabhumi

Sep 22

BKK8:00 pmBangkok Suvarnabhumi

40h 01m

2 stops

PDX10:01 pmPortland

$1,046

United Airlines flights from Portland to Thailand

Our best United Airlines deals on Portland to Thailand flight tickets

United Airlines

Jul 13

PDX7:00 amPortland

25h 15m

2 stops

BKK10:15 pmBangkok Suvarnabhumi

Jul 28

BKK7:00 amBangkok Suvarnabhumi

23h 47m

2 stops

PDX4:47 pmPortland

$1,151

United Airlines

Jul 13

PDX7:00 amPortland

25h 15m

2 stops

BKK10:15 pmBangkok Suvarnabhumi

Jul 28

BKK7:00 amBangkok Suvarnabhumi

23h 47m

2 stops

PDX4:47 pmPortland

$1,152

United Airlines

Jul 13

PDX11:16 amPortland

32h 19m

3 stops

BKK9:35 amBangkok Suvarnabhumi

Jul 28

BKK7:00 amBangkok Suvarnabhumi

23h 47m

2 stops

PDX4:47 pmPortland

$1,153

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/16

7:35 pm-12:05 pm

2 stops25h 30m

Bangkok Suvarnabhumi

Tue 1/19

8:25 am-9:26 am

1 stop16h 01m

$949

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/16

7:35 pm-12:05 pm

2 stops25h 30m

Bangkok Suvarnabhumi

Tue 1/19

9:40 am-2:41 pm

2 stops20h 01m

$955

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/1

5:41 pm-12:10 pm

2 stops28h 29m

Bangkok Suvarnabhumi

Wed 10/14

2:35 am-2:51 pm

2 stops26h 16m

$956

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/29

7:37 pm-12:05 pm

2 stops26h 28m

Bangkok Suvarnabhumi

Fri 11/13

8:25 am-2:41 pm

1 stop21h 16m

$976

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 8/23

11:48 am-7:45 am

2 stops29h 57m

Phuket City

Tue 9/8

8:30 pm-4:50 pm

2 stops34h 20m

$1,103

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 8/23

6:20 am-7:45 am

2 stops35h 25m

Phuket City

Tue 9/8

8:30 pm-4:50 pm

2 stops34h 20m

$1,104

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Wed 8/12

9:45 pm-10:50 am

2 stops23h 05m

Phuket City

Wed 8/19

11:50 am-9:25 am

2 stops35h 35m

$1,126

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 9/17

7:03 am-10:25 am

2 stops37h 22m

Chiang Mai

Wed 9/30

11:35 am-8:50 pm

2 stops23h 15m

$1,188

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 8/31

7:40 pm-10:20 am

2 stops24h 40m

Chiang Mai

Sat 9/5

11:20 am-8:54 am

2 stops35h 34m

$1,257

PortlandKo Samui

PDX - USM

PDXUSM

Portland

Thu 9/10

2:12 pm-7:40 pm

2 stops39h 28m

Ko Samui

Mon 9/14

11:55 am-1:51 pm

2 stops63h 56m

$1,689

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 week ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,093 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 $968 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	25h 15m
Direct flights	None

The fastest flight from Portland to Thailand takes 25h 15m

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 $139	Free Cancellation	Rating 7.8 8,454 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,402 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.9 352 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,557 reviews	Search Singapore Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,858 reviews	Search Japan Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 831 reviews	Search China Airlines flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 9,927 reviews	Search United Airlines flights
Korean Air	PriceFrom $845	Free Cancellation	Rating 8.4 1,220 reviews	Search Korean Air flights
ANA	PriceFrom $890	Free Cancellation	Rating 8.3 1,260 reviews	Search ANA flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,484 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.