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$363+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Bangkok are usually found in September or October, booked 87 days in advance, depart on a Monday or Tuesday and return on a Tuesday

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 October 16, 2025.

Round-trip from

$802
(STARLUX Airlines)

One-way from

$363
(SmartFares)

Popular in

December

Cheapest in

September

Average price

$957
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. 10% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 16, 2025.

This oojo deal was found by Cheapflights users on 10/16. 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 11/289:30 pmPDX - BKK
2 stops48h 05mMultiple Airlines
Fri 12/55:40 pmBKK - PDX
2 stops42h 40mMultiple Airlines
Deal found 10/16$808
This oojo deal was found by Cheapflights users on 10/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/210:30 amPDX - BKK
2 stops35h 35mChina Airlines
Sat 11/152:35 amBKK - PDX
2 stops46h 05mChina Airlines
Deal found 10/15$816
This oojo deal was found by Cheapflights users on 10/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:20 amPDX - BKK
2 stops42h 25mChina Airlines
Sat 3/145:50 pmBKK - PDX
2 stops29h 45mChina Airlines
Deal found 10/15$817
This oojo deal was found by Cheapflights users on 10/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/232:15 pmPDX - BKK
2 stops31h 20mMultiple Airlines
Sat 12/61:45 pmBKK - PDX
2 stops22h 35mMultiple Airlines
Deal found 10/15$822
This oojo deal was found by Cheapflights users on 10/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:30 pmPDX - BKK
2 stops49h 35mChina Airlines
Thu 11/132:35 amBKK - PDX
2 stops34h 59mChina Airlines
Deal found 10/15$823
This oojo deal was found by Cheapflights users on 10/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:55 pmPDX - BKK
2 stops40h 40mChina Airlines
Mon 11/172:35 amBKK - PDX
2 stops46h 05mChina Airlines
Deal found 10/15$824
This SmartFares deal was found by Cheapflights users on 10/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/210:30 amPDX - BKK
2 stops24h 05mMultiple Airlines
Tue 11/42:35 amBKK - PDX
2 stops46h 05mMultiple Airlines
Deal found 10/15$825
This SmartFares deal was found by Cheapflights users on 10/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/69:30 pmPDX - BKK
2 stops37h 05mMultiple Airlines
Sun 11/92:35 amBKK - PDX
2 stops46h 05mMultiple Airlines
Deal found 10/16$832
This SmartFares deal was found by Cheapflights users on 10/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:20 amPDX - BKK
2 stops35h 30mMultiple Airlines
Tue 11/182:35 amBKK - PDX
2 stops33h 15mMultiple Airlines
Deal found 10/15$844
This Fareboom deal was found by Cheapflights users on 10/15. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/232:15 pmPDX - BKK
2 stops31h 20mSTARLUX Airlines
Tue 12/235:40 pmBKK - PDX
2 stops45h 32mSTARLUX Airlines
Deal found 10/15$846
This oojo deal was found by Cheapflights users on 10/16. 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.
Sun 11/301:24 pmPDX - BKK
2 stops32h 11mMultiple Airlines
Sun 12/75:40 pmBKK - PDX
2 stops42h 40mMultiple Airlines
Deal found 10/16$848
This Mytrip deal was found by Cheapflights users on 10/16. 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.
Tue 11/119:50 amPDX - DMK
2 stops21h 15mMultiple Airlines
Tue 11/2510:10 pmDMK - PDX
3 stops35h 20mMultiple Airlines
Deal found 10/16$960

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 October 16, 2025.
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 10/20

7:35 pm-4:35 am

2 stops43h 00m

Bangkok Suvarnabhumi

Mon 11/3

4:55 pm-10:53 am

3 stops32h 58m

$867

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 10/29

6:00 am-11:25 am

2 stops39h 25m

Bangkok Suvarnabhumi

Wed 11/19

4:55 pm-10:53 am

3 stops32h 58m

$868

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/24

7:30 am-11:25 am

2 stops36h 55m

Bangkok Suvarnabhumi

Sun 12/7

4:55 pm-11:03 am

3 stops33h 08m

$868

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 11/4

7:30 am-11:25 am

2 stops36h 55m

Bangkok Suvarnabhumi

Tue 11/18

4:55 pm-2:46 pm

3 stops36h 51m

$869

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/24

1:00 pm-11:25 am

3 stops55h 25m

Bangkok Suvarnabhumi

Sat 12/6

4:55 pm-11:03 am

3 stops33h 08m

$872

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 11/25

6:00 am-11:25 am

3 stops62h 25m

Bangkok Suvarnabhumi

Sun 12/7

4:55 pm-11:03 am

3 stops33h 08m

$872

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 11/2

10:05 am-11:25 am

2 stops58h 20m

Bangkok Suvarnabhumi

Thu 11/20

4:55 pm-10:53 am

3 stops32h 58m

$875

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 11/23

10:05 am-11:25 am

2 stops58h 20m

Bangkok Suvarnabhumi

Sat 12/6

4:55 pm-11:03 am

3 stops33h 08m

$875

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/24

6:00 am-11:25 am

2 stops38h 25m

Bangkok Suvarnabhumi

Wed 12/24

4:55 pm-10:46 pm

3 stops44h 51m

$880

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 11/23

7:38 pm-11:25 am

2 stops48h 47m

Bangkok Suvarnabhumi

Tue 12/23

4:55 pm-10:46 pm

3 stops44h 51m

$887

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 37 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 October 10, 2025.

Booking 87 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 $216). Flying from Portland to Bangkok in June is currently the most expensive (average of $979). 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.

What is the cheapest time of day to fly from PDX to BKK?

Find hourly flight availability from Portland to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 16, 2025.

It’s typically best to fly out from Portland to Bangkok in the evening. Doing so could potentially save you 34% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Portland to Bangkok?

Use this chart to determine the cheapest time to fly round-trip from Portland to Bangkok. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Bangkok flight should consider departing on Sunday mornings when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 16, 2025.
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
219 reviews

Boarding

8.9

Food

8.7

Overall

8.9

Comfort

8.9

Crew

9.2

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
STARLUX Airlines
8.9
Very good
219 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Boarding

8.9

Food

8.7

Overall

8.9

Comfort

8.9

Crew

9.2

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
Korean Air
8.4
Very good
1,149 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Boarding

8.9

Food

8.7

Overall

8.9

Comfort

8.9

Crew

9.2

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
ANA
8.4
Very good
986 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Boarding

8.9

Food

8.7

Overall

8.9

Comfort

8.9

Crew

9.2

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
United Airlines
7.4
Good
8,982 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Boarding

8.9

Food

8.7

Overall

8.9

Comfort

8.9

Crew

9.2

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!
Air Canada
7.1
Good
10,307 reviews
STARLUX Airlines
8.9
Very good
219 reviews

Boarding

8.9

Food

8.7

Overall

8.9

Comfort

8.9

Crew

9.2

Entertainment

8.8

Reviews

1 / 8
10.0
Excellent

Anonymous,Sep 2025

TPE - CRK

Superb service! My second time flying with Starlux to Clark. Will definately fly this route with them again!

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 13 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 43h. 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 $227, was found to be the cheapest airline from Portland to Bangkok.Alternate airlines to your destination round-trip include China Eastern and Japan Airlines. These flights start at 79% lower than the current average price 3 months from now.

  • 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 Vancouver 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 Vancouver?

    The majority of Vancouver visitors spend their time at Orpheum Theatre, Pacific Central Station, and Queen Elizabeth Theatre. Orpheum Theatre, Pacific Central Station, and Queen Elizabeth Theatre are located about 6.5 mi, 6.6 mi, and 6.6 mi, respectively from Vancouver Intl. Travelers in need of a car in Vancouver can rent one for about $39 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 $57 per day.

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

    Flights departing from Portland and landing in Bangkok layover in San Francisco least frequently. Tokyo sees the second fewest layovers for non-direct flights flying from Portland to Bangkok.

  • 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 $216). Flying from Portland to Bangkok in June is currently the most expensive (average of $979). 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

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$1,239FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$750Average$899FlexibilityNo cancel feeOn-time62%
Japan AirlinesCheapest$776Average$962FlexibilityNo cancel feeOn-time79%
ANACheapest$793Average$973FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,116FlexibilityNo cancel feeOn-time81%
STARLUX AirlinesCheapest$798Average$958FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$817Average$994FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$820Average$1,113FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$837Average$909FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$864Average$874FlexibilityNo cancel feeOn-time68%

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