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$344+ 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 10 — Feb 171
Tue 2/10
Tue 2/17
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 11, 2026.

Round-trip from

$879
(United Airlines)

One-way from

$344
(SmartFares)

Popular in

December

Cheapest in

August

Average price

$974
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 ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($52 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 11, 2026.

This United Airlines deal was found by Cheapflights users on 1/7. 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 4/273:30 pmPDX - BKK
3 stops28h 15mUnited Airlines
Mon 5/43:40 pmBKK - PDX
3 stops34h 45mUnited Airlines
Deal found 1/7$879
This United Airlines deal was found by Cheapflights users on 1/7. 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 4/63:30 pmPDX - BKK
3 stops52h 15mUnited Airlines
Thu 4/239:35 amBKK - PDX
2 stops29h 09mUnited Airlines
Deal found 1/7$880
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/167:30 amPDX - BKK
2 stops25h 50mUnited Airlines
Wed 3/44:55 pmBKK - PDX
2 stops40h 52mUnited Airlines
Deal found 1/7$882
This United Airlines deal was found by Cheapflights users on 1/7. 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 2/181:40 pmPDX - BKK
3 stops30h 45mUnited Airlines
Tue 3/34:55 pmBKK - PDX
2 stops22h 39mUnited Airlines
Deal found 1/7$883
This Expedia deal was found by Cheapflights users on 1/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/13:52 pmPDX - BKK
2 stops29h 08mMultiple Airlines
Tue 3/177:15 amBKK - PDX
1 stop25h 15mMultiple Airlines
Deal found 1/9$885
This United Airlines deal was found by Cheapflights users on 1/9. 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 10/198:46 amPDX - BKK
2 stops25h 09mUnited Airlines
Sun 11/13:40 pmBKK - PDX
2 stops35h 45mUnited Airlines
Deal found 1/9$886
This United Airlines deal was found by Cheapflights users on 1/9. 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.
Thu 2/197:30 amPDX - BKK
2 stops36h 55mUnited Airlines
Thu 3/54:55 pmBKK - PDX
2 stops22h 40mUnited Airlines
Deal found 1/9$887
This United Airlines deal was found by Cheapflights users on 1/7. 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.
Sun 2/151:40 pmPDX - BKK
2 stops43h 40mUnited Airlines
Wed 3/44:55 pmBKK - PDX
2 stops34h 33mUnited Airlines
Deal found 1/7$888
This United Airlines deal was found by Cheapflights users on 1/10. 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.
Sun 2/151:40 pmPDX - BKK
2 stops43h 40mUnited Airlines
Sun 3/154:55 pmBKK - PDX
2 stops33h 38mUnited Airlines
Deal found 1/10$889
This United Airlines deal was found by Cheapflights users on 1/10. 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 1/287:45 amPDX - BKK
3 stops36h 40mUnited Airlines
Sun 2/84:55 pmBKK - PDX
2 stops45h 11mUnited Airlines
Deal found 1/10$890
This United Airlines deal was found by Cheapflights users on 1/7. 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 3/237:30 amPDX - BKK
2 stops37h 55mUnited Airlines
Wed 4/153:40 pmBKK - PDX
2 stops36h 51mUnited Airlines
Deal found 1/7$891
This oojo deal was found by Cheapflights users on 1/8. 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.
Fri 4/172:37 pmPDX - BKK
2 stops29h 08mChina Airlines
Wed 5/135:30 pmBKK - PDX
2 stops30h 02mChina Airlines
Deal found 1/8$892

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 11, 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

Mon 3/2

1:40 pm-11:25 am

3 stops30h 45m

Bangkok Suvarnabhumi

Thu 3/12

4:55 pm-12:35 am

2 stops21h 40m

$887

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 2/18

1:40 pm-11:25 am

2 stops30h 45m

Bangkok Suvarnabhumi

Thu 3/19

4:55 pm-12:35 am

2 stops21h 40m

$887

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 4/7

7:15 am-9:45 am

3 stops36h 30m

Bangkok Suvarnabhumi

Wed 4/22

3:40 pm-2:31 pm

2 stops36h 51m

$887

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 3/25

7:30 am-11:25 am

2 stops37h 55m

Bangkok Suvarnabhumi

Sun 4/12

3:40 pm-8:48 pm

2 stops43h 08m

$891

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/23

7:30 am-11:25 am

2 stops37h 55m

Bangkok Suvarnabhumi

Sun 4/12

3:40 pm-8:48 pm

2 stops43h 08m

$891

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 3/26

7:30 am-11:25 am

2 stops37h 55m

Bangkok Suvarnabhumi

Wed 4/15

3:40 pm-2:31 pm

2 stops36h 51m

$891

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/17

1:40 pm-11:25 am

3 stops54h 45m

Bangkok Suvarnabhumi

Tue 3/3

4:55 pm-6:55 pm

2 stops41h 00m

$895

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/17

3:50 pm-11:25 am

3 stops52h 35m

Bangkok Suvarnabhumi

Mon 3/2

4:55 pm-10:59 pm

2 stops21h 04m

$895

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 3/1

7:57 pm-11:25 am

3 stops48h 28m

Bangkok Suvarnabhumi

Thu 4/16

3:40 pm-12:44 am

2 stops23h 04m

$899

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 3/1

7:57 pm-11:25 am

3 stops48h 28m

Bangkok Suvarnabhumi

Thu 3/12

4:55 pm-11:04 pm

2 stops20h 09m

$900

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 32 results
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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 2, 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.

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 11, 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
261 reviews

Comfort

8.8

Crew

9.1

Entertainment

8.8

Food

8.6

Boarding

8.9

Overall

8.9

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
261 reviews
STARLUX Airlines
8.9
Very good
261 reviews

Comfort

8.8

Crew

9.1

Entertainment

8.8

Food

8.6

Boarding

8.9

Overall

8.9

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
1,188 reviews
STARLUX Airlines
8.9
Very good
261 reviews

Comfort

8.8

Crew

9.1

Entertainment

8.8

Food

8.6

Boarding

8.9

Overall

8.9

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
1,065 reviews
STARLUX Airlines
8.9
Very good
261 reviews

Comfort

8.8

Crew

9.1

Entertainment

8.8

Food

8.6

Boarding

8.9

Overall

8.9

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
9,145 reviews
STARLUX Airlines
8.9
Very good
261 reviews

Comfort

8.8

Crew

9.1

Entertainment

8.8

Food

8.6

Boarding

8.9

Overall

8.9

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
10,610 reviews
STARLUX Airlines
8.9
Very good
261 reviews

Comfort

8.8

Crew

9.1

Entertainment

8.8

Food

8.6

Boarding

8.9

Overall

8.9

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 30h 45m. Fly via United Airlines to get the fastest option. Portland and Bangkok are separated by a distance of 7525 mi.

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

    Delta, at $192, 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 82% 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 $54 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 $74 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$848FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$759Average$904FlexibilityNo cancel feeOn-time81%
STARLUX AirlinesCheapest$770Average$951FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$776Average$966FlexibilityNo cancel feeOn-time79%
China AirlinesCheapest$781Average$899FlexibilityNo cancel feeOn-time70%
ANACheapest$785Average$983FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,056FlexibilityNo 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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