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

STARLUX Airlines, United Airlines, and Korean Air 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 57% of people opting to fly with this airline when traveling to Thailand. Keep in mind that there are 13 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 September 2025, there are 13 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.

$410 Cheap Flights from Portland to Thailand in 2025

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Find the cheapest flights from Portland to Thailand

Round-trip

One-way

Last minute

Cheap round-trip flights

5:30 pm - 3:55 pmPDX-CNX

31h 25m2 stops

4:55 pm - 8:43 pmCNX-PDX

42h 48m2 stops

$802STARLUX Airlines

Find Deal

Sun, Jan 25 - Tue, Feb 24

7:45 pm - 3:55 pmPDX-CNX

29h 10m2 stops

4:55 pm - 6:53 pmCNX-PDX

40h 58m2 stops

$839

Find Deal

Tue, Feb 3 - Tue, Feb 10

7:15 am - 9:30 pmPDX-BKK

23h 15m2 stops

11:30 pm - 4:33 pmBKK-PDX

31h 03m2 stops

$846Korean Air

Find Deal

Wed, Nov 19 - Wed, Apr 15

7:35 pm - 4:35 amPDX-BKK

43h 00m2 stops

7:00 am - 2:42 pmBKK-PDX

21h 42m2 stops

$856United Airlines

Find Deal

Sat, Sep 20 - Sat, Sep 27

5:30 am - 4:35 amPDX-BKK

57h 05m3 stops

9:35 am - 12:42 pmBKK-PDX

41h 07m2 stops

$858United Airlines

Find Deal

Sat, Sep 27 - Sun, Oct 5

6:30 am - 10:55 pmPDX-CNX

25h 25m2 stops

12:15 am - 1:14 pmCNX-PDX

27h 59m2 stops

$861Korean Air

Find Deal

Mon, Jan 26 - Thu, Feb 26

9:30 pm - 10:50 amPDX-HKT

47h 20m2 stops

6:20 pm - 9:47 amHKT-PDX

29h 27m2 stops

$996Cathay Pacific

Find Deal

Sun, Oct 12 - Sun, Oct 19

9:50 am - 9:55 amPDX-HKT

34h 05m2 stops

8:20 pm - 9:15 amHKT-PDX

50h 55m2 stops

$1,105Air Canada

Find Deal

Wed, Mar 11 - Wed, Mar 18

6:55 pm - 11:20 amPDX-HKT

26h 25m2 stops

6:35 pm - 4:28 pmHKT-PDX

35h 53m2 stops

$1,113Cathay Pacific

Find Deal

Thu, Mar 12 - Fri, Mar 20

9:50 am - 9:55 amPDX-HKT

34h 05m2 stops

8:20 pm - 9:15 amHKT-PDX

50h 55m2 stops

$1,115Air Canada

Find Deal

Thu, Mar 12 - Wed, Mar 18

Delta flights from Portland to Thailand

Our best Delta deals on Portland to Thailand flight tickets

Delta

Sep 17

PDX9:17 amPortland

25h 48m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Sep 22

BKK11:30 pmBangkok Suvarnabhumi

31h 40m

2 stops

PDX5:10 pmPortland

$841

Find similar

Delta

Sep 20

PDX5:50 pmPortland

41h 15m

2 stops

BKK1:05 amBangkok Suvarnabhumi

Sep 27

BKK9:40 pmBangkok Suvarnabhumi

39h 02m

2 stops

PDX10:42 pmPortland

$846

Find similar

Delta

Sep 27

PDX9:17 amPortland

22h 38m

2 stops

CNX9:55 pmChiang Mai

Sep 30

CNX11:15 pmChiang Mai

38h 37m

2 stops

PDX11:52 pmPortland

$948

Find similar

Korean Air flights from Portland to Thailand

Our best Korean Air deals on Portland to Thailand flight tickets

Korean Air

Nov 19

PDX7:15 amPortland

23h 15m

2 stops

BKK9:30 pmBangkok Suvarnabhumi

Apr 15

BKK11:30 pmBangkok Suvarnabhumi

31h 03m

2 stops

PDX4:33 pmPortland

$846

Find similar

Korean Air

Jan 26

PDX6:30 amPortland

25h 25m

2 stops

CNX10:55 pmChiang Mai

Feb 26

CNX12:15 amChiang Mai

27h 59m

2 stops

PDX1:14 pmPortland

$861

Find similar

Korean Air

Dec 1

PDX7:15 amPortland

25h 05m

2 stops

BKK11:20 pmBangkok Suvarnabhumi

Dec 10

BKK12:55 amBangkok Suvarnabhumi

27h 18m

2 stops

PDX1:13 pmPortland

$934

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sun 1/25

5:30 pm-3:55 pm

2 stops31h 25m

Chiang Mai

Tue 2/24

4:55 pm-8:43 pm

2 stops42h 48m

$802

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 2/3

7:45 pm-3:55 pm

2 stops29h 10m

Chiang Mai

Tue 2/10

4:55 pm-6:53 pm

2 stops40h 58m

$839

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 11/19

7:15 am-9:30 pm

2 stops23h 15m

Bangkok Suvarnabhumi

Wed 4/15

11:30 pm-4:33 pm

2 stops31h 03m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 9/20

7:35 pm-4:35 am

2 stops43h 00m

Bangkok Suvarnabhumi

Sat 9/27

7:00 am-2:42 pm

2 stops21h 42m

$856

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 9/27

5:30 am-4:35 am

3 stops57h 05m

Bangkok Suvarnabhumi

Sun 10/5

9:35 am-12:42 pm

2 stops41h 07m

$858

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 1/26

6:30 am-10:55 pm

2 stops25h 25m

Chiang Mai

Thu 2/26

12:15 am-1:14 pm

2 stops27h 59m

$861

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sun 10/12

9:30 pm-10:50 am

2 stops47h 20m

Phuket City

Sun 10/19

6:20 pm-9:47 am

2 stops29h 27m

$996

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Wed 3/11

9:50 am-9:55 am

2 stops34h 05m

Phuket City

Wed 3/18

8:20 pm-9:15 am

2 stops50h 55m

$1,105

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Thu 3/12

6:55 pm-11:20 am

2 stops26h 25m

Phuket City

Fri 3/20

6:35 pm-4:28 pm

2 stops35h 53m

$1,113

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Thu 3/12

9:50 am-9:55 am

2 stops34h 05m

Phuket City

Wed 3/18

8:20 pm-9:15 am

2 stops50h 55m

$1,115

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 August is, on average, the cheapest month to fly to Thailand from Portland, with most prices found around $958. If you are unable to visit Thailand during the month of August, then departing from Portland during the month September is also very affordable. Most momondo users find prices during this month for around $962.

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 $1,115 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 $1,001 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 September 2025, there are 13 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 7,959 reviews	Search Delta flights
China Eastern	PriceFrom $750	Free Cancellation	Rating 7.2 165 reviews	Search China Eastern flights
Japan Airlines	PriceFrom $782	Free Cancellation	Rating 8.3 1,559 reviews	Search Japan Airlines flights
Korean Air	PriceFrom $789	Free Cancellation	Rating 8.4 1,139 reviews	Search Korean Air flights
ANA	PriceFrom $796	Free Cancellation	Rating 8.4 961 reviews	Search ANA flights
United Airlines	PriceFrom $817	Free Cancellation	Rating 7.4 8,934 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $820	Free Cancellation	Rating 8.1 1,365 reviews	Search Singapore Airlines flights
STARLUX Airlines	PriceFrom $832	Free Cancellation	Rating 8.9 211 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $837	Free Cancellation	Rating 8.3 767 reviews	Search China Airlines flights
Qatar Airways	PriceFrom $864	Free Cancellation	Rating 7.4 3,624 reviews	Search Qatar Airways 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.