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

United Airlines is the most popular carrier 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 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.

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.

$424 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.

7:03 am - 1:25 pm

PDX

CNX

40h 22m

2 stops

3:35 pm - 8:31 pm

CNX

PDX

43h 56m

2 stops

$902Multiple Airlines

Wed, Sep 9 - Tue, Nov 17

7:03 am - 1:25 pm

PDX

CNX

40h 22m

2 stops

3:35 pm - 4:35 pm

CNX

PDX

40h 00m

2 stops

$920Multiple Airlines

Tue, Sep 8 - Sun, Nov 15

7:03 am - 1:25 pm

PDX

CNX

40h 22m

2 stops

2:55 pm - 8:36 pm

CNX

PDX

43h 41m

2 stops

$937Multiple Airlines

Sun, Sep 6 - Fri, Sep 11

10:37 am - 11:20 pm

PDX

CNX

46h 43m

2 stops

2:55 pm - 11:59 pm

CNX

PDX

47h 04m

2 stops

$940Multiple Airlines

Wed, Aug 19 - Wed, Aug 26

7:03 am - 9:55 pm

PDX

BKK

24h 52m

2 stops

5:05 am - 4:36 pm

BKK

PDX

25h 31m

2 stops

$955Multiple Airlines

Thu, Sep 3 - Thu, Sep 17

7:03 am - 9:55 pm

PDX

BKK

24h 52m

2 stops

5:05 am - 1:50 pm

BKK

PDX

23h 45m

2 stops

$961Multiple Airlines

Thu, Sep 17 - Sat, Dec 12

8:18 pm - 4:40 pm

PDX

BKK

30h 22m

2 stops

1:10 pm - 10:50 am

BKK

PDX

35h 40m

2 stops

$979STARLUX Airlines

Tue, Sep 1 - Tue, Sep 29

9:40 am - 9:15 pm

PDX

KBV

44h 35m

3 stops

5:20 pm - 2:55 pm

KBV

PDX

36h 35m

3 stops

$1,234Qatar Airways

Tue, Jan 19 - Fri, Feb 5

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

1:03 pm - 11:35 am

PDX

KBV

32h 32m

2 stops

11:30 pm - 6:31 pm

KBV

PDX

33h 01m

2 stops

$2,559Emirates

Fri, Oct 16 - Tue, Oct 20

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STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Sep 1

PDX8:18 pmPortland

30h 22m

2 stops

BKK4:40 pmBangkok Suvarnabhumi

Sep 29

BKK1:10 pmBangkok Suvarnabhumi

35h 40m

2 stops

PDX10:50 amPortland

$979

STARLUX Airlines

Sep 6

PDX5:41 pmPortland

32h 24m

2 stops

CNX4:05 pmChiang Mai

Nov 17

CNX5:00 pmChiang Mai

41h 41m

2 stops

PDX7:41 pmPortland

$1,299

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

Sep 7

PDX11:48 amPortland

28h 32m

2 stops

BKK6:20 amBangkok Suvarnabhumi

Sep 20

BKK3:00 amBangkok Suvarnabhumi

27h 50m

2 stops

PDX4:50 pmPortland

$1,048

Qatar Airways

Oct 20

PDX12:18 pmPortland

29h 27m

2 stops

HKT7:45 amPhuket City

Oct 31

HKT8:30 pmPhuket City

33h 55m

2 stops

PDX4:25 pmPortland

$1,134

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 9/9

7:03 am-1:25 pm

2 stops40h 22m

Chiang Mai

Tue 11/17

3:35 pm-8:31 pm

2 stops43h 56m

$902

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 9/8

7:03 am-1:25 pm

2 stops40h 22m

Chiang Mai

Sun 11/15

3:35 pm-4:35 pm

2 stops40h 00m

$920

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sun 9/6

7:03 am-1:25 pm

2 stops40h 22m

Chiang Mai

Fri 9/11

2:55 pm-8:36 pm

2 stops43h 41m

$937

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 8/19

10:37 am-11:20 pm

2 stops46h 43m

Chiang Mai

Wed 8/26

2:55 pm-11:59 pm

2 stops47h 04m

$940

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 9/3

7:03 am-9:55 pm

2 stops24h 52m

Bangkok Suvarnabhumi

Thu 9/17

5:05 am-4:36 pm

2 stops25h 31m

$955

Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 9/17

7:03 am-9:55 pm

2 stops24h 52m

Bangkok Suvarnabhumi

Sat 12/12

5:05 am-1:50 pm

2 stops23h 45m

$961

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 9/1

8:18 pm-4:40 pm

2 stops30h 22m

Bangkok Suvarnabhumi

Tue 9/29

1:10 pm-10:50 am

2 stops35h 40m

$979

PortlandKrabi

PDX - KBV

PDXKBV

Portland

Tue 1/19

9:40 am-9:15 pm

3 stops44h 35m

Krabi

Fri 2/5

5:20 pm-2:55 pm

3 stops36h 35m

$1,234

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

PortlandKrabi

PDX - KBV

PDXKBV

Portland

Fri 10/16

1:03 pm-11:35 am

2 stops32h 32m

Krabi

Tue 10/20

11:30 pm-6:31 pm

2 stops33h 01m

$2,559

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 weeks ahead of your departure date. In general, you can expect to find flights to Thailand for around $1,122 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 $967 on momondo.

Can stopping save me money on Portland to Thailand flights?

You could potentially save up to 29% 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

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 8,482 reviews	Search Delta flights
Cathay Pacific	PriceFrom $653	Free Cancellation	Rating 7.6 1,425 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $754	Free Cancellation	Rating 8.8 362 reviews	Search STARLUX Airlines flights
Singapore Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 1,578 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 838 reviews	Search China Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,881 reviews	Search Japan Airlines flights
Korean Air	PriceFrom $806	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
United Airlines	PriceFrom $822	Free Cancellation	Rating 7.4 10,025 reviews	Search United Airlines flights
ANA	PriceFrom $890	Free Cancellation	Rating 8.3 1,276 reviews	Search ANA flights
EVA Air	PriceFrom $896	Free Cancellation	Rating 8.5 1,502 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.