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 44% 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.

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.

$355 Cheap Flights from Portland to Thailand in 2025/26

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Cheap round-trip flights

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9:19 pm - 8:00 pmPDX-BKK

31h 41m2 stops

3:50 pm - 9:35 amBKK-PDX

32h 45m2 stops

$786Singapore Airlines

Find Deal

Wed, Feb 18 - Wed, Mar 4

9:30 pm - 8:00 pmPDX-BKK

31h 30m2 stops

8:00 pm - 1:30 pmBKK-PDX

32h 30m2 stops

$790Singapore Airlines

Find Deal

Mon, Jan 26 - Mon, Feb 9

9:30 pm - 8:00 pmPDX-BKK

31h 30m2 stops

8:00 pm - 1:30 pmBKK-PDX

32h 30m2 stops

$794Singapore Airlines

Find Deal

Mon, Jan 26 - Mon, Feb 9

6:00 am - 8:00 pmPDX-BKK

24h 00m2 stops

8:10 pm - 4:28 pmBKK-PDX

34h 18m2 stops

$795Singapore Airlines

Find Deal

Tue, Mar 31 - Tue, Apr 14

6:15 am - 12:45 amPDX-BKK

28h 30m2 stops

12:55 am - 4:43 pmBKK-PDX

29h 48m2 stops

$814Korean Air

Find Deal

Tue, Mar 10 - Mon, Mar 23

4:51 pm - 10:25 amPDX-CNX

26h 34m2 stops

5:35 pm - 4:50 pmCNX-PDX

38h 15m2 stops

$843China Airlines

Find Deal

Mon, Jan 12 - Mon, Feb 16

4:51 pm - 10:25 amPDX-CNX

26h 34m2 stops

5:35 pm - 1:37 pmCNX-PDX

35h 02m2 stops

$855China Airlines

Find Deal

Mon, Jan 12 - Mon, Feb 16

7:10 am - 10:55 pmPDX-CNX

24h 45m2 stops

12:15 am - 6:49 pmCNX-PDX

33h 34m2 stops

$862Korean Air

Find Deal

Mon, Feb 2 - Sun, Feb 22

5:51 pm - 5:35 pmPDX-HKT

32h 44m2 stops

12:20 pm - 8:53 pmHKT-PDX

23h 33m2 stops

$949Cathay Pacific

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Mon, Feb 2 - Mon, Feb 16

10:33 am - 10:35 amPDX-CNX

33h 02m2 stops

11:50 am - 11:32 pmCNX-PDX

26h 42m2 stops

$954EVA Air

Find Deal

Wed, Jan 7 - Wed, Feb 11

Singapore Airlines flights from Portland to Thailand

Our best Singapore Airlines deals on Portland to Thailand flight tickets

Singapore Airlines

Feb 18

PDX9:19 pmPortland

31h 41m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Mar 4

BKK3:50 pmBangkok Suvarnabhumi

32h 45m

2 stops

PDX9:35 amPortland

$786

Find similar

Singapore Airlines

Jan 26

PDX9:30 pmPortland

31h 30m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Feb 9

BKK8:00 pmBangkok Suvarnabhumi

32h 30m

2 stops

PDX1:30 pmPortland

$790

Find similar

Singapore Airlines

Jan 26

PDX9:30 pmPortland

31h 30m

2 stops

BKK8:00 pmBangkok Suvarnabhumi

Feb 9

BKK8:00 pmBangkok Suvarnabhumi

32h 30m

2 stops

PDX1:30 pmPortland

$794

Find similar

China Airlines flights from Portland to Thailand

Our best China Airlines deals on Portland to Thailand flight tickets

China Airlines

Feb 16

PDX5:40 pmPortland

28h 25m

2 stops

BKK1:05 pmBangkok Suvarnabhumi

Mar 2

BKK5:50 pmBangkok Suvarnabhumi

20h 56m

2 stops

PDX11:46 pmPortland

$827

Find similar

China Airlines

Apr 11

PDX5:30 pmPortland

26h 15m

2 stops

BKK9:45 amBangkok Suvarnabhumi

Apr 27

BKK5:30 pmBangkok Suvarnabhumi

30h 02m

2 stops

PDX9:32 amPortland

$828

Find similar

China Airlines

Feb 10

PDX2:30 pmPortland

35h 15m

2 stops

BKK4:45 pmBangkok Suvarnabhumi

Feb 24

BKK10:55 amBangkok Suvarnabhumi

27h 51m

2 stops

PDX11:46 pmPortland

$832

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 2/18

9:19 pm-8:00 pm

2 stops31h 41m

Bangkok Suvarnabhumi

Wed 3/4

3:50 pm-9:35 am

2 stops32h 45m

$786

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/26

9:30 pm-8:00 pm

2 stops31h 30m

Bangkok Suvarnabhumi

Mon 2/9

8:00 pm-1:30 pm

2 stops32h 30m

$790

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/26

9:30 pm-8:00 pm

2 stops31h 30m

Bangkok Suvarnabhumi

Mon 2/9

8:00 pm-1:30 pm

2 stops32h 30m

$794

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/31

6:00 am-8:00 pm

2 stops24h 00m

Bangkok Suvarnabhumi

Tue 4/14

8:10 pm-4:28 pm

2 stops34h 18m

$795

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/10

6:15 am-12:45 am

2 stops28h 30m

Bangkok Suvarnabhumi

Mon 3/23

12:55 am-4:43 pm

2 stops29h 48m

$814

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 1/12

4:51 pm-10:25 am

2 stops26h 34m

Chiang Mai

Mon 2/16

5:35 pm-4:50 pm

2 stops38h 15m

$843

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 1/12

4:51 pm-10:25 am

2 stops26h 34m

Chiang Mai

Mon 2/16

5:35 pm-1:37 pm

2 stops35h 02m

$855

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 2/2

7:10 am-10:55 pm

2 stops24h 45m

Chiang Mai

Sun 2/22

12:15 am-6:49 pm

2 stops33h 34m

$862

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Mon 2/2

5:51 pm-5:35 pm

2 stops32h 44m

Phuket City

Mon 2/16

12:20 pm-8:53 pm

2 stops23h 33m

$949

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Wed 1/7

10:33 am-10:35 am

2 stops33h 02m

Chiang Mai

Wed 2/11

11:50 am-11:32 pm

2 stops26h 42m

$954

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 $957.

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

Fastest flight time	21h 15m
Direct flights	None

The fastest flight from Portland to Thailand takes 21h 15m

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 8,003 reviews	Search Delta flights
China Airlines	PriceFrom $773	Free Cancellation	Rating 8.3 782 reviews	Search China Airlines flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,630 reviews	Search Japan Airlines flights
STARLUX Airlines	PriceFrom $776	Free Cancellation	Rating 8.9 235 reviews	Search STARLUX Airlines flights
ANA	PriceFrom $785	Free Cancellation	Rating 8.4 1,011 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,172 reviews	Search Korean Air flights
United Airlines	PriceFrom $817	Free Cancellation	Rating 7.4 9,050 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $820	Free Cancellation	Rating 8.1 1,410 reviews	Search Singapore Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,677 reviews	Search Qatar Airways flights
Air Canada	PriceFrom $928	Free Cancellation	Rating 7.1 10,481 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.