What airlines fly to Thailand?

Air Canada, STARLUX Airlines and Korean Air 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 47% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 12 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?

China Airlines, Korean Air, 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 November 2025, there are 12 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.

$392 Cheap Flights from Portland to Thailand in 2025/26

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Find the cheapest flights from Portland to Thailand

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:41 pm - 9:50 amPDX-BKK

25h 09m2 stops

10:55 am - 9:36 amBKK-PDX

37h 41m2 stops

$781China Airlines

Find Deal

Thu, Dec 4 - Tue, Dec 16

5:50 pm - 9:50 amPDX-BKK

25h 00m2 stops

2:35 am - 10:46 pmBKK-PDX

35h 11m2 stops

$789China Airlines

Find Deal

Sun, Jan 18 - Sun, Feb 1

6:00 am - 8:00 pmPDX-BKK

24h 00m2 stops

6:30 pm - 4:28 pmBKK-PDX

35h 58m2 stops

$799Singapore Airlines

Find Deal

Tue, Mar 31 - Tue, Apr 14

5:39 pm - 10:10 amPDX-HKT

25h 31m2 stops

6:00 pm - 1:34 pmHKT-PDX

33h 34m2 stops

$897Singapore Airlines

Find Deal

Sun, Mar 1 - Mon, Mar 9

2:30 pm - 10:35 amPDX-CNX

29h 05m2 stops

11:50 am - 11:32 pmCNX-PDX

26h 42m2 stops

$911EVA Air

Find Deal

Thu, Jan 22 - Mon, Feb 2

6:25 am - 10:55 pmPDX-CNX

25h 30m2 stops

12:15 am - 12:44 pmCNX-PDX

27h 29m2 stops

$934Korean Air

Find Deal

Thu, Jan 22 - Sun, Feb 1

5:51 pm - 10:35 amPDX-CNX

25h 44m2 stops

11:50 am - 11:32 pmCNX-PDX

26h 42m2 stops

$943EVA Air

Find Deal

Thu, Jan 22 - Mon, Feb 2

5:51 pm - 11:20 amPDX-HKT

26h 29m2 stops

12:20 pm - 8:34 pmHKT-PDX

23h 14m2 stops

$948Cathay Pacific

Find Deal

Tue, Feb 3 - Wed, Feb 11

5:41 pm - 11:20 amPDX-HKT

50h 39m2 stops

6:35 pm - 10:36 pmHKT-PDX

42h 01m2 stops

$967Cathay Pacific

Find Deal

Sun, Mar 1 - Sun, Mar 22

6:30 am - 10:10 pmPDX-HKT

49h 40m2 stops

11:25 pm - 4:15 pmHKT-PDX

30h 50m2 stops

$1,034Korean Air

Find Deal

Thu, Mar 19 - Mon, Mar 30

China Airlines flights from Portland to Thailand

Our best China Airlines deals on Portland to Thailand flight tickets

China Airlines

Mar 31

PDX2:45 pmPortland

31h 25m

2 stops

BKK12:10 pmBangkok Suvarnabhumi

Apr 14

BKK1:20 pmBangkok Suvarnabhumi

23h 01m

2 stops

PDX10:21 pmPortland

$788

Find similar

China Airlines

Jan 18

PDX5:50 pmPortland

25h 00m

2 stops

BKK9:50 amBangkok Suvarnabhumi

Feb 1

BKK2:35 amBangkok Suvarnabhumi

35h 11m

2 stops

PDX10:46 pmPortland

$789

Find similar

China Airlines

Nov 24

PDX1:24 pmPortland

32h 41m

2 stops

BKK1:05 pmBangkok Suvarnabhumi

Dec 23

BKK5:50 pmBangkok Suvarnabhumi

27h 28m

2 stops

PDX6:18 amPortland

$791

Find similar

EVA Air flights from Portland to Thailand

Our best EVA Air deals on Portland to Thailand flight tickets

EVA Air

Jan 28

PDX7:20 amPortland

25h 20m

2 stops

BKK11:40 pmBangkok Suvarnabhumi

Feb 10

BKK2:15 amBangkok Suvarnabhumi

33h 33m

2 stops

PDX8:48 pmPortland

$846

Find similar

EVA Air

Nov 24

PDX7:01 amPortland

25h 39m

2 stops

BKK11:40 pmBangkok Suvarnabhumi

Dec 22

BKK2:15 amBangkok Suvarnabhumi

33h 56m

2 stops

PDX9:11 pmPortland

$882

Find similar

EVA Air

Nov 23

PDX9:48 pmPortland

34h 52m

2 stops

BKK11:40 pmBangkok Suvarnabhumi

Dec 22

BKK2:15 amBangkok Suvarnabhumi

33h 56m

2 stops

PDX9:11 pmPortland

$889

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 12/4

5:41 pm-9:50 am

2 stops25h 09m

Bangkok Suvarnabhumi

Tue 12/16

10:55 am-9:36 am

2 stops37h 41m

$781

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 1/18

5:50 pm-9:50 am

2 stops25h 00m

Bangkok Suvarnabhumi

Sun 2/1

2:35 am-10:46 pm

2 stops35h 11m

$789

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/31

6:00 am-8:00 pm

2 stops24h 00m

Bangkok Suvarnabhumi

Tue 4/14

6:30 pm-4:28 pm

2 stops35h 58m

$799

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 3/1

5:39 pm-10:10 am

2 stops25h 31m

Phuket City

Mon 3/9

6:00 pm-1:34 pm

2 stops33h 34m

$897

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/22

2:30 pm-10:35 am

2 stops29h 05m

Chiang Mai

Mon 2/2

11:50 am-11:32 pm

2 stops26h 42m

$911

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/22

6:25 am-10:55 pm

2 stops25h 30m

Chiang Mai

Sun 2/1

12:15 am-12:44 pm

2 stops27h 29m

$934

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Thu 1/22

5:51 pm-10:35 am

2 stops25h 44m

Chiang Mai

Mon 2/2

11:50 am-11:32 pm

2 stops26h 42m

$943

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Tue 2/3

5:51 pm-11:20 am

2 stops26h 29m

Phuket City

Wed 2/11

12:20 pm-8:34 pm

2 stops23h 14m

$948

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 3/1

5:41 pm-11:20 am

2 stops50h 39m

Phuket City

Sun 3/22

6:35 pm-10:36 pm

2 stops42h 01m

$967

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Thu 3/19

6:30 am-10:10 pm

2 stops49h 40m

Phuket City

Mon 3/30

11:25 pm-4:15 pm

2 stops30h 50m

$1,034

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 $949. If you are unable to visit Thailand during the month of September, then departing from Portland during the month October is also very affordable. Most momondo users find prices during this month for around $956.

What is the cheapest day to depart on your flight to Thailand?

The cheapest day to depart on your flight to Thailand is on a Monday when prices can be found for as low as $1,127. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Thailand is Friday, with ticket prices averaging around $1,440.

What is the cheapest time of day to depart on your flight to Thailand?

Flying to Thailand from Portland in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,137 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Thailand is at noon when prices are around $1,989.

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 $1,093 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 $925 on momondo.

Cheap Portland to Thailand flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Thailand

Direct flights	None

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 November 2025, there are 12 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 $227	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,613 reviews	Search Japan Airlines flights
STARLUX Airlines	PriceFrom $777	Free Cancellation	Rating 8.9 227 reviews	Search STARLUX Airlines flights
ANA	PriceFrom $793	Free Cancellation	Rating 8.4 1,004 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,163 reviews	Search Korean Air flights
United Airlines	PriceFrom $817	Free Cancellation	Rating 7.4 9,017 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $820	Free Cancellation	Rating 8.1 1,401 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $835	Free Cancellation	Rating 8.3 778 reviews	Search China Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,662 reviews	Search Qatar Airways flights
Air Canada	PriceFrom $928	Free Cancellation	Rating 7.1 10,449 reviews	Search Air Canada 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.