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$357+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Bangkok are usually found in August 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 September 15, 2025.

Round-trip from

$841
(Delta)

One-way from

$357
(SmartFares)

Popular in

December

Cheapest in

August

Average price

$962
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. 11% potential increase in price ($136 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/249:15 amPDX - BKK
2 stops24h 30mDelta
Tue 12/2312:55 amBKK - PDX
2 stops36h 04mDelta
Deal found 9/14$841
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:31 pmPDX - BKK
2 stops31h 09mSTARLUX Airlines
Sun 9/215:50 pmBKK - PDX
2 stops40h 35mSTARLUX Airlines
Deal found 9/13$844
This Korean Air deal was found by Cheapflights users on 9/15. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:15 amPDX - BKK
2 stops23h 15mKorean Air
Tue 12/2311:15 pmBKK - PDX
2 stops32h 22mKorean Air
Deal found 9/15$846
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:37 pmPDX - BKK
2 stops25h 23mMultiple Airlines
Sat 10/41:10 pmBKK - PDX
2 stops34h 37mMultiple Airlines
Deal found 9/13$847
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/43:29 pmPDX - BKK
2 stops30h 06mMultiple Airlines
Thu 11/205:40 pmBKK - PDX
2 stops44h 20mMultiple Airlines
Deal found 9/13$848
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:00 pmPDX - BKK
2 stops24h 00mSTARLUX Airlines
Tue 10/211:10 pmBKK - PDX
2 stops23h 35mSTARLUX Airlines
Deal found 9/14$855
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 9/275:30 amPDX - BKK
3 stops57h 05mUnited Airlines
Sun 10/59:35 amBKK - PDX
2 stops41h 07mUnited Airlines
Deal found 9/13$858
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 10/293:54 pmPDX - BKK
3 stops29h 31mUnited Airlines
Wed 11/194:55 pmBKK - PDX
3 stops32h 58mUnited Airlines
Deal found 9/15$860
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/43:30 pmPDX - BKK
2 stops30h 05mSTARLUX Airlines
Tue 11/181:45 pmBKK - PDX
2 stops21h 52mSTARLUX Airlines
Deal found 9/15$861
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/256:00 amPDX - BKK
3 stops38h 25mUnited Airlines
Fri 12/264:55 pmBKK - PDX
2 stops20h 51mUnited Airlines
Deal found 9/14$864
This oojo deal was found by Cheapflights users on 9/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:20 amPDX - BKK
2 stops27h 15mChina Airlines
Tue 4/212:40 amBKK - PDX
2 stops44h 52mChina Airlines
Deal found 9/13$868
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 11/47:38 pmPDX - BKK
2 stops24h 47mUnited Airlines
Thu 11/204:55 pmBKK - PDX
3 stops32h 58mUnited Airlines
Deal found 9/15$869

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 September 15, 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

Fri 11/28

9:15 am-11:20 pm

2 stops23h 05m

Bangkok Suvarnabhumi

Wed 12/24

11:15 pm-4:37 pm

2 stops32h 22m

$841

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 11/27

7:15 am-12:45 am

2 stops26h 30m

Bangkok Suvarnabhumi

Mon 12/22

12:55 am-6:14 pm

2 stops32h 19m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 11/18

7:15 am-12:45 am

2 stops26h 30m

Bangkok Suvarnabhumi

Mon 3/2

12:55 am-1:14 pm

2 stops27h 19m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 10/20

9:17 am-1:05 am

2 stops25h 48m

Bangkok Suvarnabhumi

Sun 11/2

12:55 am-8:39 pm

2 stops34h 44m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/17

7:15 am-9:30 pm

2 stops23h 15m

Bangkok Suvarnabhumi

Mon 12/8

9:40 am-6:58 pm

2 stops24h 18m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 9/27

9:17 am-1:15 pm

2 stops37h 58m

Bangkok Suvarnabhumi

Sat 10/4

2:35 am-10:39 pm

2 stops34h 04m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 11/19

7:15 am-9:30 pm

2 stops23h 15m

Bangkok Suvarnabhumi

Fri 3/13

12:55 am-1:14 pm

2 stops26h 19m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 11/13

7:15 am-9:30 pm

2 stops23h 15m

Bangkok Suvarnabhumi

Thu 11/20

9:40 am-6:59 pm

2 stops24h 19m

$846

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 10/29

7:30 am-11:25 am

3 stops37h 55m

Bangkok Suvarnabhumi

Wed 11/19

4:55 pm-10:53 am

3 stops32h 58m

$860

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/17

6:00 am-11:25 am

3 stops38h 25m

Bangkok Suvarnabhumi

Mon 12/8

4:55 pm-2:47 pm

3 stops36h 52m

$860

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 40 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 September 12, 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, September is the cheapest month in which you can book a flight from Portland to Bangkok (average of $900). Flying from Portland to Bangkok in December is currently the most expensive (average of $1,507). 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 September 15, 2025.

It’s typically best to fly out from Portland to Bangkok in the evening. Doing so could potentially save you 43% 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 Tuesday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 September 15, 2025.
Peruse reviews from past customers who have flown with STARLUX Airlines, ANA, and Korean Air 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
211 reviews

Crew

9.2

Boarding

9.0

Entertainment

8.9

Food

8.8

Comfort

8.9

Overall

8.9

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
211 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Crew

9.2

Boarding

9.0

Entertainment

8.9

Food

8.8

Comfort

8.9

Overall

8.9

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
961 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Crew

9.2

Boarding

9.0

Entertainment

8.9

Food

8.8

Comfort

8.9

Overall

8.9

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
1,139 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Crew

9.2

Boarding

9.0

Entertainment

8.9

Food

8.8

Comfort

8.9

Overall

8.9

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
8,929 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Crew

9.2

Boarding

9.0

Entertainment

8.9

Food

8.8

Comfort

8.9

Overall

8.9

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
10,000 reviews
STARLUX Airlines
8.9
Very good
211 reviews

Crew

9.2

Boarding

9.0

Entertainment

8.9

Food

8.8

Comfort

8.9

Overall

8.9

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 23h 05m. Fly via Delta or Korean Air 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 $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 Vancouver. Vancouver is followed by Seattle in terms of the most popular layover location on flights from Portland to Bangkok. Tokyo 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 Vancouver?

    Orpheum Theatre, Pacific Central Station, and Capilano Suspension Bridge are the most popular attractions in Vancouver if you're in need of something to do during your layover. Orpheum Theatre, Pacific Central Station, and Capilano Suspension Bridge can be accessed by traveling approximately 6.5 mi, 6.6 mi, and 10.6 mi, respectively from Vancouver Intl. Travelers in need of a car in Vancouver can rent one for about $56 per day.

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

    The majority of Seattle visitors spend their time at Pike Place Market, Space Needle, and Seattle Waterfront. Pike Place Market, Space Needle, and Seattle Waterfront are located about 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 $64 per day.

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

    The majority of Tokyo visitors spend their time at Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower. Akihabara Electric Town, Tsukiji Outer Market, and Tokyo Tower are located about 34.6 mi, 35.3 mi, and 36.7 mi, respectively from Tokyo Narita. Those looking to explore during their layover in Tokyo can rent a car from Tokyo Narita for about $50 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. Seoul 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, September is the cheapest month in which you can book a flight from Portland to Bangkok (average of $900). Flying from Portland to Bangkok in December is currently the most expensive (average of $1,507). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$1,260FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$750Average$871FlexibilityNo cancel feeOn-time62%
Japan AirlinesCheapest$782Average$997FlexibilityNo cancel feeOn-time79%
Korean AirCheapest$795Average$1,175FlexibilityNo cancel feeOn-time81%
ANACheapest$796Average$980FlexibilityNo cancel feeOn-time80%
United AirlinesCheapest$817Average$1,006FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$820Average$996FlexibilityNo cancel feeOn-time81%
STARLUX AirlinesCheapest$832Average$961FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$837Average$909FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$864Average$874FlexibilityNo cancel feeOn-time68%

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