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$433+ Cheap flights from Portland (PDX) to Thailand

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap flight deals from Portland to Thailand

Cheapest flights from Portland to Thailand
Explore the most affordable flight options available from Portland to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This Justfly.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:45 pm
PDX
-
BKK
1 stop19h 20m
Air Canada
Wed 9/307:05 am
BKK
-
PDX
1 stop26h 06m
Air Canada
Deal found 7/30$895
This Justfly.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:45 pm
PDX
-
BKK
1 stop19h 20m
Air Canada
Mon 9/217:05 am
BKK
-
PDX
1 stop26h 06m
Air Canada
Deal found 8/1$896
This Trip.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:56 pm
PDX
-
CNX
2 stops53h 29m
Multiple Airlines
Fri 9/42:55 pm
CNX
-
PDX
3 stops64h 16m
Multiple Airlines
Deal found 7/31$902
This Bravofly deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:08 am
PDX
-
BKK
2 stops27h 27m
Korean Air
Mon 9/212:35 am
BKK
-
PDX
2 stops28h 35m
Korean Air
Deal found 8/1$906
This Justfly.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:45 pm
PDX
-
BKK
2 stops36h 00m
Air Canada
Tue 9/2911:30 pm
BKK
-
PDX
2 stops29h 16m
Air Canada
Deal found 7/30$909
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/73:30 pm
PDX
-
BKK
1 stop23h 35m
Air Canada
Mon 9/287:05 am
BKK
-
PDX
2 stops27h 55m
Air Canada
Deal found 7/31$918
This KAYAK deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:45 pm
PDX
-
BKK
1 stop19h 20m
Multiple Airlines
Wed 9/307:05 am
BKK
-
PDX
1 stop16h 26m
Multiple Airlines
Deal found 7/28$941
This KAYAK deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:37 am
PDX
-
CNX
2 stops46h 43m
Multiple Airlines
Wed 8/262:55 pm
CNX
-
PDX
2 stops47h 04m
Multiple Airlines
Deal found 7/29$941
This FlightHub deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:18 pm
PDX
-
CNX
2 stops51h 07m
Multiple Airlines
Sat 9/52:55 pm
CNX
-
PDX
2 stops47h 04m
Multiple Airlines
Deal found 7/28$961
This FlightHub deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:48 pm
PDX
-
CNX
2 stops54h 32m
Multiple Airlines
Wed 11/113:35 pm
CNX
-
PDX
2 stops39h 59m
Multiple Airlines
Deal found 7/29$966
This FlightHub deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:47 am
PDX
-
HKT
2 stops48h 13m
Multiple Airlines
Sat 11/1411:05 pm
HKT
-
PDX
2 stops39h 05m
Multiple Airlines
Deal found 7/27$988
This Gotogate deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:45 pm
PDX
-
CNX
2 stops30h 50m
Multiple Airlines
Sun 9/208:00 pm
CNX
-
PDX
2 stops27h 31m
Multiple Airlines
Deal found 7/31$1,001

Find flight deals from Portland to Thailand

Keep the following information in mind while searching for Portland to Thailand flight deals. Data was last updated August 1, 2026.

Round-trip from

$895
(Justfly.com)

One-way from

$433
(oojo)

Popular in

December

Cheapest in

April

Average price

$1,015
From Portland to Thailand
Search Deals
One-way flight from Portland to Thailand
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($59 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Thailand that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2026.
Use the filters below to find and compare flights from Portland to Thailand that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

$941

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Fri 9/11

7:45 pm-4:35 pm

2 stops30h 50m

Chiang Mai

Sun 9/20

8:00 pm-9:31 am

2 stops27h 31m

$1,001

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/11

5:35 am-5:10 am

2 stops32h 35m

Bangkok Suvarnabhumi

Tue 1/19

9:10 am-12:54 am

2 stops30h 44m

$1,006

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/18

5:35 am-5:10 am

2 stops32h 35m

Bangkok Suvarnabhumi

Mon 1/25

9:10 am-12:54 am

2 stops30h 44m

$1,006

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 9/2

3:43 pm-11:55 pm

3 stops42h 12m

Bangkok Suvarnabhumi

Wed 9/30

9:35 am-9:00 pm

2 stops25h 25m

$1,009

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 9/14

1:03 pm-9:35 am

3 stops30h 32m

Bangkok Suvarnabhumi

Mon 9/21

9:35 am-12:37 am

2 stops29h 02m

$1,011

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 9/7

11:15 am-9:35 am

3 stops32h 20m

Bangkok Suvarnabhumi

Mon 9/28

9:35 am-9:00 pm

2 stops25h 25m

$1,011

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Sat 9/12

8:18 pm-10:50 am

2 stops24h 32m

Phuket City

Sat 9/19

11:50 am-8:54 am

2 stops35h 04m

$1,012

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 1/20

7:30 am-11:30 am

3 stops37h 00m

Bangkok Suvarnabhumi

Thu 1/28

7:10 am-5:38 pm

2 stops25h 28m

$1,012

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 9/21

11:15 am-9:35 am

3 stops32h 20m

Bangkok Suvarnabhumi

Tue 10/6

7:00 am-6:31 pm

3 stops25h 31m

$1,012

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Portland to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Thailand

What is the cheapest month to book a flight from Portland to Thailand?

Currently, April is the cheapest month in which you can book a flight from Portland to Thailand (average of $914). Flying from Portland to Thailand in December is currently the most expensive (average of $1,772). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How far ahead should I book a flight from Portland to Thailand?

The best time to book flights from Portland to Thailand is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thailand. Reviews last updated August 1, 2026.
Get a feel of what it's like to fly with STARLUX Airlines,EVA Air, andChina Airlines from Portland to Thailand by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.8
Very good
363 reviews

Boarding

8.9

Entertainment

8.7

Food

8.6

Crew

9.1

Overall

8.8

Comfort

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
STARLUX Airlines
8.8
Very good
363 reviews
STARLUX Airlines
8.8
Very good
363 reviews

Boarding

8.9

Entertainment

8.7

Food

8.6

Crew

9.1

Overall

8.8

Comfort

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
EVA Air
8.5
Very good
1,508 reviews
STARLUX Airlines
8.8
Very good
363 reviews

Boarding

8.9

Entertainment

8.7

Food

8.6

Crew

9.1

Overall

8.8

Comfort

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
China Airlines
8.3
Very good
838 reviews
STARLUX Airlines
8.8
Very good
363 reviews

Boarding

8.9

Entertainment

8.7

Food

8.6

Crew

9.1

Overall

8.8

Comfort

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
United Airlines
7.4
Good
10,062 reviews
STARLUX Airlines
8.8
Very good
363 reviews

Boarding

8.9

Entertainment

8.7

Food

8.6

Crew

9.1

Overall

8.8

Comfort

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
Air Canada
7.1
Good
11,415 reviews
STARLUX Airlines
8.8
Very good
363 reviews

Boarding

8.9

Entertainment

8.7

Food

8.6

Crew

9.1

Overall

8.8

Comfort

8.8

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.

Related info for your journey

Find useful and relevant information for your journey from Portland to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Thailand?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Thailand.

  • How long is the flight from Portland to Thailand?

    Airlines like United Airlines, Korean Air, and China Airlines fly from Portland to Thailand in about 22h 48m. The time it takes to get you to your destination can typically vary by up to 26h 17m. The distance from Portland to Thailand is about 7279 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Portland to Thailand one-way?

    For one-way options, check prices for STARLUX Airlines. According to our data, you can fly for as low as $399. Users have also found prices from $456 and $458 on Delta and Korean Air, respectively.

  • What are the most popular routes from Portland to Thailand?

    Most travelers choose Portland - Bangkok Suvarnabhumi, Portland - Bangkok Don Mueang Intl or Portland - Phuket City when deciding on the best route from Portland to Thailand.

  • Can I find deals for flights from Portland to Thailand that include hotel bookings?

    Yes. In addition to deals on Portland to Thailand flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Thailand?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Thailand.

  • Can I find deals for business class flights from Portland to Thailand?

    Yes. Cheapflights offers flight deals from Portland to Thailand by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Thailand?

    Currently, April is the cheapest month in which you can book a flight from Portland to Thailand (average of $914). Flying from Portland to Thailand in December is currently the most expensive (average of $1,772). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Portland to Thailand

Discover the top 10 airlines that operate flights from Portland to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$99Average$840FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$653Average$1,084FlexibilityNo cancel feeOn-time72%
STARLUX AirlinesCheapest$753Average$847FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$759Average$987FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$773Average$903FlexibilityNo cancel feeOn-time70%
Japan AirlinesCheapest$776Average$1,120FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$822Average$1,029FlexibilityNo cancel feeOn-time69%
Korean AirCheapest$845Average$1,025FlexibilityNo cancel feeOn-time81%
ANACheapest$861Average$1,303FlexibilityNo cancel feeOn-time80%
EVA AirCheapest$896Average$984FlexibilityNo cancel feeOn-time74%

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