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$361+ Cheap flights from Portland (PDX) to Bangkok

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Portland to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 15, 2026.

Round-trip from

$895
(KAYAK)

One-way from

$361
(oojo)

Popular in

December

Cheapest in

August

Average price

$978
From Portland to Bangkok
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One-way flight from Portland to Bangkok
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Highest demand for flights based on searches. 9% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($51 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Portland to Bangkok

Cheapest flights from Portland to Bangkok
Explore the most affordable flight options available from Portland to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This KAYAK deal was found by Cheapflights users on 1/14. 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.
Mon 2/237:05 am
PDX
-
BKK
3 stops46h 15m
Multiple Airlines
Wed 3/1110:20 pm
BKK
-
PDX
2 stops32h 30m
Multiple Airlines
Deal found 1/14$895
This United Airlines deal was found by Cheapflights users on 1/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/267:51 pm
PDX
-
BKK
3 stops48h 34m
United Airlines
Sun 2/14:55 pm
BKK
-
PDX
2 stops34h 38m
United Airlines
Deal found 1/15$899
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/167:57 pm
PDX
-
BKK
2 stops34h 03m
Singapore Airlines
Mon 4/68:15 pm
BKK
-
PDX
2 stops30h 20m
Singapore Airlines
Deal found 1/14$901
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/144:51 pm
PDX
-
BKK
2 stops29h 14m
China Airlines
Wed 2/1810:55 am
BKK
-
PDX
2 stops41h 42m
China Airlines
Deal found 1/14$902
This United Airlines deal was found by Cheapflights users on 1/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/233:50 pm
PDX
-
BKK
2 stops41h 30m
United Airlines
Thu 2/59:10 am
BKK
-
PDX
2 stops28h 56m
United Airlines
Deal found 1/14$903
This United Airlines deal was found by Cheapflights users on 1/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:30 am
PDX
-
BKK
3 stops33h 05m
United Airlines
Tue 9/19:35 am
BKK
-
PDX
2 stops25h 10m
United Airlines
Deal found 1/14$904
This United Airlines deal was found by Cheapflights users on 1/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:30 pm
PDX
-
BKK
3 stops28h 15m
United Airlines
Fri 9/47:00 am
BKK
-
PDX
2 stops30h 04m
United Airlines
Deal found 1/14$907
This United Airlines deal was found by Cheapflights users on 1/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:15 am
PDX
-
BKK
3 stops36h 30m
United Airlines
Fri 5/159:35 am
BKK
-
PDX
2 stops25h 12m
United Airlines
Deal found 1/14$908
This STARLUX Airlines deal was found by Cheapflights users on 1/15. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/13:52 pm
PDX
-
BKK
2 stops29h 43m
STARLUX Airlines
Sun 3/81:45 pm
BKK
-
PDX
2 stops22h 56m
STARLUX Airlines
Deal found 1/15$909
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:30 am
PDX
-
BKK
2 stops28h 25m
United Airlines
Fri 10/237:00 am
BKK
-
PDX
2 stops25h 41m
United Airlines
Deal found 1/13$910
This United Airlines deal was found by Cheapflights users on 1/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:30 pm
PDX
-
BKK
3 stops28h 15m
United Airlines
Fri 4/247:00 am
BKK
-
PDX
2 stops31h 44m
United Airlines
Deal found 1/14$911
This Trip.com deal was found by Cheapflights users on 1/13. 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.
Tue 1/207:20 am
PDX
-
DMK
2 stops25h 55m
Multiple Airlines
Tue 3/316:15 am
DMK
-
PDX
2 stops45h 22m
Multiple Airlines
Deal found 1/13$1,084

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Bangkok 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 January 15, 2026.
Use the filters below to find and compare flights from Portland to Bangkok that are best for you.

Fly from

Portland

Fly to

Bangkok

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 3/1

3:52 pm-12:35 pm

2 stops29h 43m

Bangkok Suvarnabhumi

Sun 3/8

1:45 pm-9:41 pm

2 stops22h 56m

$909

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/26

5:35 am-11:25 am

3 stops38h 50m

Bangkok Suvarnabhumi

Sat 2/7

4:55 pm-12:34 pm

2 stops34h 39m

$917

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 1/28

3:50 pm-11:25 am

3 stops28h 35m

Bangkok Suvarnabhumi

Sun 2/8

4:55 pm-12:39 am

2 stops22h 44m

$917

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 2/4

3:55 pm-11:25 am

2 stops28h 30m

Bangkok Suvarnabhumi

Fri 2/13

4:55 pm-12:38 pm

2 stops34h 43m

$922

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 4/19

7:14 pm-9:45 am

3 stops48h 31m

Bangkok Suvarnabhumi

Sat 4/25

3:40 pm-12:44 am

2 stops23h 04m

$940

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/31

7:15 am-9:45 am

3 stops36h 30m

Bangkok Suvarnabhumi

Thu 4/30

9:35 am-12:48 am

2 stops29h 13m

$972

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 2/28

7:57 pm-11:25 am

3 stops48h 28m

Bangkok Suvarnabhumi

Sat 3/14

4:55 pm-11:09 pm

2 stops20h 14m

$980

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 2/28

1:40 pm-11:25 am

3 stops54h 45m

Bangkok Suvarnabhumi

Sat 3/7

4:55 pm-5:47 pm

2 stops39h 52m

$980

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 4/6

7:15 am-9:45 am

3 stops36h 30m

Bangkok Suvarnabhumi

Thu 5/7

3:40 pm-12:48 am

2 stops23h 08m

$992

PortlandBangkok

PDX - DMK

PDXDMK

Portland

Mon 1/26

9:50 am-10:05 pm

2 stops21h 15m

Bangkok Don Mueang Intl

Sat 2/7

8:45 am-6:30 pm

2 stops24h 45m

$1,114

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 30 results
1
2
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Best time to book a flight from Portland to Bangkok

Have a flexible travel schedule? Discover the best time to fly to Bangkok 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 Bangkok

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Bangkok. Price data was last updated on January 9, 2026.

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Bangkok. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, July is the cheapest month in which you can book a flight from Portland to Bangkok (average of $243). Flying from Portland to Bangkok in June is currently the most expensive (average of $900). 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 much does it cost to fly round-trip from Portland to Bangkok?

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated January 15, 2026.
Peruse reviews from past customers who have flown with STARLUX Airlines, Korean Air, and ANA from Portland to Bangkok to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
264 reviews

Comfort

8.8

Overall

8.9

Entertainment

8.8

Food

8.6

Boarding

8.9

Crew

9.1

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
STARLUX Airlines
8.9
Very good
264 reviews
STARLUX Airlines
8.9
Very good
264 reviews

Comfort

8.8

Overall

8.9

Entertainment

8.8

Food

8.6

Boarding

8.9

Crew

9.1

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
Korean Air
8.4
Very good
1,187 reviews
STARLUX Airlines
8.9
Very good
264 reviews

Comfort

8.8

Overall

8.9

Entertainment

8.8

Food

8.6

Boarding

8.9

Crew

9.1

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
ANA
8.4
Very good
1,073 reviews
STARLUX Airlines
8.9
Very good
264 reviews

Comfort

8.8

Overall

8.9

Entertainment

8.8

Food

8.6

Boarding

8.9

Crew

9.1

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
United Airlines
7.4
Good
9,164 reviews
STARLUX Airlines
8.9
Very good
264 reviews

Comfort

8.8

Overall

8.9

Entertainment

8.8

Food

8.6

Boarding

8.9

Crew

9.1

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
Air Canada
7.1
Good
10,624 reviews
STARLUX Airlines
8.9
Very good
264 reviews

Comfort

8.8

Overall

8.9

Entertainment

8.8

Food

8.6

Boarding

8.9

Crew

9.1

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.

Related info for your journey

Find useful and relevant information for your journey from Portland to Bangkok. 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 Bangkok?

    Most people fly from Portland (PDX) if they book a flight from Portland to Bangkok. On average, Portland has 0 outbound flights to Bangkok per day from 12 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

  • How long is the flight from Portland to Bangkok?

    There are many flights that can get you from Portland to Bangkok in 29h 43m. Fly via STARLUX Airlines or United Airlines to get the fastest option. Portland and Bangkok are separated by a distance of 7525 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland to Bangkok round-trip?

    Delta, at $139, was found to be the cheapest airline from Portland to Bangkok.Alternate airlines to your destination round-trip include Singapore Airlines and STARLUX Airlines. These flights start at 87% lower than the current average price 3 months from now.

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

    $302 is the cheapest one-way deal found within the past few days, from ANA. You may also be able to find cheap deals on Qatar Airways and STARLUX Airlines, with prices starting from $387 and $399, respectively.

  • Where are the most common layover locations when flying from Portland to Bangkok?

    The most popular layover on flights from Portland to Bangkok is Seattle. Seattle is followed by Taipei City in terms of the most popular layover location on flights from Portland to Bangkok. Seoul ranks third in terms of the most popular layover location on Portland to Bangkok flights.

  • What are some popular things to do or see while on a layover in Seattle?

    Pike Place Market, Space Needle, and Seattle Waterfront are the most popular attractions in Seattle if you're in need of something to do during your layover. Pike Place Market, Space Needle, and Seattle Waterfront can be accessed by traveling approximately 11.2 mi, 12.0 mi, and 10.9 mi, respectively from Seattle/Tacoma Intl. Travelers in need of a car in Seattle can rent one for about $59 per day.

  • What are some popular points of interest to see during a layover in Taipei City?

    The majority of Taipei City visitors spend their time at Taipei 101, Shilin Night Market, and Raohe Street Night Market. Taipei 101, Shilin Night Market, and Raohe Street Night Market are located about 21.0 mi, 18.3 mi, and 21.6 mi, respectively from Taipei City Taiwan Taoyuan Intl. Travelers in need of a car in Taipei City can rent one for about $78 per day.

  • What are points of interest worth seeing during a layover in Seoul?

    The majority of Seoul visitors spend their time at Dongdaemun Market, Lotte World, and Bukchon Hanok Village. Dongdaemun Market, Lotte World, and Bukchon Hanok Village are located about 31.6 mi, 35.7 mi, and 30.6 mi, respectively from Incheon Intl. Those looking to explore during their layover in Seoul can rent a car from Incheon Intl for about $46 per day.

  • Where are the least popular layover locations for Portland to Bangkok flights?

    Flights departing from Portland and landing in Bangkok layover in Vancouver least frequently. San Francisco sees the second fewest layovers for non-direct flights flying from Portland to Bangkok. Tokyo comes in third to last in terms of the least popular layover locations on Portland to Bangkok flights.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Bangkok 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 Bangkok?

    Currently, July is the cheapest month in which you can book a flight from Portland to Bangkok (average of $243). Flying from Portland to Bangkok in June is currently the most expensive (average of $900). 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

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Top 10 airlines flying from Portland to Bangkok

Discover the top 10 airlines that operate flights from Portland to Bangkok. 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$840FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$759Average$904FlexibilityNo cancel feeOn-time81%
STARLUX AirlinesCheapest$772Average$950FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$776Average$969FlexibilityNo cancel feeOn-time79%
China AirlinesCheapest$781Average$899FlexibilityNo cancel feeOn-time70%
ANACheapest$785Average$983FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,050FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$817Average$966FlexibilityNo cancel feeOn-time69%
Qatar AirwaysCheapest$864Average$874FlexibilityNo cancel feeOn-time68%
EVA AirCheapest$896Average$1,064FlexibilityNo cancel feeOn-time74%

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