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

Philippine Airlines, American Airlines, and United Airlines are the most popular carriers operating from Portland to Thailand

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.

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.

$366 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.

5:30 pm - 12:35 pmPDX-BKK

28h 05m2 stops

1:45 pm - 5:59 pmBKK-PDX

19h 14m2 stops

$778STARLUX Airlines

Find Deal

lun, feb 16 - lun, mar 2

7:24 am - 4:45 pmPDX-BKK

42h 21m2 stops

2:35 am - 9:35 amBKK-PDX

46h 00m2 stops

$779China Airlines

Find Deal

gio, gen 22 - ven, feb 6

7:10 am - 10:55 pmPDX-CNX

24h 45m2 stops

12:15 am - 4:14 pmCNX-PDX

30h 59m2 stops

$952Korean Air

Find Deal

gio, gen 15 - mar, feb 24

7:10 am - 10:55 pmPDX-CNX

24h 45m2 stops

12:15 am - 6:53 pmCNX-PDX

33h 38m2 stops

$953Korean Air

Find Deal

gio, gen 15 - mar, feb 24

12:09 pm - 10:50 amPDX-HKT

32h 41m2 stops

11:50 am - 10:31 pmHKT-PDX

24h 41m2 stops

$960Cathay Pacific

Find Deal

dom, apr 19 - mar, mag 19

6:22 pm - 5:35 pmPDX-HKT

32h 13m2 stops

12:20 pm - 10:38 pmHKT-PDX

49h 18m2 stops

$1,067Cathay Pacific

Find Deal

sab, gen 17 - sab, gen 24

5:30 am - 10:55 pmPDX-CNX

26h 25m2 stops

12:15 am - 12:14 amCNX-PDX

38h 59m2 stops

$1,166Delta

Find Deal

mer, nov 19 - sab, nov 22

7:00 pm - 3:45 pmPDX-CNX

29h 45m2 stops

12:05 pm - 9:15 amCNX-PDX

36h 10m2 stops

$1,226Air Canada

Find Deal

mar, gen 20 - mer, feb 25

7:00 pm - 3:45 pmPDX-CNX

29h 45m2 stops

12:05 pm - 2:40 pmCNX-PDX

41h 35m2 stops

$1,251Air Canada

Find Deal

mar, gen 20 - ven, feb 20

7:10 am - 10:55 pmPDX-CNX

24h 45m2 stops

12:15 am - 6:50 pmCNX-PDX

33h 35m2 stops

$1,277Delta

Find Deal

gio, gen 15 - lun, feb 23

China Airlines flights from Portland to Thailand

Our best China Airlines deals on Portland to Thailand flight tickets

China Airlines

Jan 22

PDX7:24 amPortland

42h 21m

2 stops

BKK4:45 pmBangkok Suvarnabhumi

Feb 6

BKK2:35 amBangkok Suvarnabhumi

46h 00m

2 stops

PDX9:35 amPortland

$779

Find similar

China Airlines

Jan 23

PDX9:30 pmPortland

48h 35m

2 stops

BKK1:05 pmBangkok Suvarnabhumi

Jan 31

BKK2:35 amBangkok Suvarnabhumi

46h 00m

2 stops

PDX9:35 amPortland

$780

Find similar

China Airlines

Dec 4

PDX5:41 pmPortland

25h 09m

2 stops

BKK9:50 amBangkok Suvarnabhumi

Dec 16

BKK10:55 amBangkok Suvarnabhumi

37h 41m

2 stops

PDX9:36 amPortland

$781

Find similar

STARLUX Airlines flights from Portland to Thailand

Our best STARLUX Airlines deals on Portland to Thailand flight tickets

STARLUX Airlines

Feb 16

PDX5:30 pmPortland

28h 05m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Mar 2

BKK1:45 pmBangkok Suvarnabhumi

19h 14m

2 stops

PDX5:59 pmPortland

$778

Find similar

STARLUX Airlines

Feb 17

PDX2:45 pmPortland

30h 50m

2 stops

BKK12:35 pmBangkok Suvarnabhumi

Mar 1

BKK5:40 pmBangkok Suvarnabhumi

39h 19m

2 stops

PDX5:59 pmPortland

$792

Find similar

STARLUX Airlines

Feb 18

PDX5:30 pmPortland

32h 00m

2 stops

BKK4:30 pmBangkok Suvarnabhumi

Mar 1

BKK5:40 pmBangkok Suvarnabhumi

40h 28m

2 stops

PDX7:08 pmPortland

$828

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

lun 2/16

5:30 pm-12:35 pm

2 stops28h 05m

Bangkok Suvarnabhumi

lun 3/2

1:45 pm-5:59 pm

2 stops19h 14m

$778

PortlandBangkok

PDX - BKK

PDXBKK

Portland

gio 1/22

7:24 am-4:45 pm

2 stops42h 21m

Bangkok Suvarnabhumi

ven 2/6

2:35 am-9:35 am

2 stops46h 00m

$779

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

gio 1/15

7:10 am-10:55 pm

2 stops24h 45m

Chiang Mai

mar 2/24

12:15 am-4:14 pm

2 stops30h 59m

$952

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

gio 1/15

7:10 am-10:55 pm

2 stops24h 45m

Chiang Mai

mar 2/24

12:15 am-6:53 pm

2 stops33h 38m

$953

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

dom 4/19

12:09 pm-10:50 am

2 stops32h 41m

Phuket City

mar 5/19

11:50 am-10:31 pm

2 stops24h 41m

$960

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

sab 1/17

6:22 pm-5:35 pm

2 stops32h 13m

Phuket City

sab 1/24

12:20 pm-10:38 pm

2 stops49h 18m

$1,067

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mer 11/19

5:30 am-10:55 pm

2 stops26h 25m

Chiang Mai

sab 11/22

12:15 am-12:14 am

2 stops38h 59m

$1,166

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mar 1/20

7:00 pm-3:45 pm

2 stops29h 45m

Chiang Mai

mer 2/25

12:05 pm-9:15 am

2 stops36h 10m

$1,226

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

mar 1/20

7:00 pm-3:45 pm

2 stops29h 45m

Chiang Mai

ven 2/20

12:05 pm-2:40 pm

2 stops41h 35m

$1,251

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

gio 1/15

7:10 am-10:55 pm

2 stops24h 45m

Chiang Mai

lun 2/23

12:15 am-6:50 pm

2 stops33h 35m

$1,277

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 $1,091 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 $934 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 8,001 reviews	Search Delta flights
Japan Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 1,604 reviews	Search Japan Airlines flights
STARLUX Airlines	PriceFrom $777	Free Cancellation	Rating 8.9 220 reviews	Search STARLUX Airlines flights
ANA	PriceFrom $793	Free Cancellation	Rating 8.4 1,003 reviews	Search ANA flights
Korean Air	PriceFrom $795	Free Cancellation	Rating 8.4 1,160 reviews	Search Korean Air flights
United Airlines	PriceFrom $817	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $820	Free Cancellation	Rating 8.1 1,393 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 3,661 reviews	Search Qatar Airways flights
Air Canada	PriceFrom $928	Free Cancellation	Rating 7.1 10,416 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.