Bangkok

$365+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Dec 25 — Jan 11
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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 November 25, 2025.

Round-trip from

$786
(oojo)

One-way from

$365
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,012
From Portland to Bangkok
One-way flight from Portland to Bangkok
Highest demand for flights based on searches. 9% potential increase in price ($115 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
Average for round-trip flights in November 2025

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 November 25, 2025.

This oojo deal was found by Cheapflights users on 11/23. 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 11/249:30 pmPDX - BKK
2 stops52h 15mChina Airlines
Wed 12/245:50 pmBKK - PDX
2 stops38h 00mChina Airlines
Deal found 11/23$840
This oojo deal was found by Cheapflights users on 11/23. 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 11/239:30 pmPDX - BKK
2 stops45h 20mChina Airlines
Sat 12/62:05 pmBKK - PDX
2 stops34h 31mChina Airlines
Deal found 11/23$849
This oojo deal was found by Cheapflights users on 11/24. 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 11/249:30 pmPDX - BKK
2 stops45h 20mChina Airlines
Tue 12/235:50 pmBKK - PDX
2 stops42h 00mChina Airlines
Deal found 11/24$865
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/246:00 amPDX - BKK
2 stops32h 10mUnited Airlines
Wed 12/244:55 pmBKK - PDX
3 stops40h 53mUnited Airlines
Deal found 11/23$877
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/246:00 amPDX - BKK
2 stops32h 10mUnited Airlines
Mon 12/14:55 pmBKK - PDX
2 stops36h 52mUnited Airlines
Deal found 11/23$881
This United Airlines deal was found by Cheapflights users on 11/24. 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 11/246:00 amPDX - BKK
2 stops32h 10mUnited Airlines
Tue 12/234:55 pmBKK - PDX
3 stops40h 53mUnited Airlines
Deal found 11/24$889
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/237:38 pmPDX - BKK
2 stops42h 32mUnited Airlines
Tue 12/234:55 pmBKK - PDX
3 stops44h 51mUnited Airlines
Deal found 11/23$896
This United Airlines deal was found by Cheapflights users on 11/24. 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 stops62h 25mUnited Airlines
Tue 12/24:55 pmBKK - PDX
2 stops33h 08mUnited Airlines
Deal found 11/24$901
This Flightnetwork deal was found by Cheapflights users on 11/23. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/305:30 amPDX - BKK
2 stops34h 00mANA
Wed 12/107:10 amBKK - PDX
2 stops22h 37mANA
Deal found 11/23$918
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/237:38 pmPDX - BKK
2 stops42h 32mUnited Airlines
Sat 12/64:55 pmBKK - PDX
3 stops33h 08mUnited Airlines
Deal found 11/23$924
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/305:30 amPDX - BKK
2 stops38h 55mUnited Airlines
Wed 12/104:55 pmBKK - PDX
3 stops36h 52mUnited Airlines
Deal found 11/23$925
This United Airlines deal was found by Cheapflights users on 11/23. 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 11/307:30 amPDX - BKK
2 stops36h 55mUnited Airlines
Thu 12/114:55 pmBKK - PDX
2 stops22h 42mUnited Airlines
Deal found 11/23$929

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 November 25, 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

Tue 3/10

9:19 pm-9:50 am

2 stops22h 31m

Bangkok Suvarnabhumi

Tue 3/24

5:50 pm-12:03 am

2 stops20h 13m

$851

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 3/25

7:05 am-12:45 am

2 stops27h 40m

Bangkok Suvarnabhumi

Thu 4/16

9:50 am-4:33 pm

2 stops20h 43m

$857

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/19

9:20 am-12:45 am

2 stops24h 25m

Bangkok Suvarnabhumi

Wed 2/4

2:05 am-4:30 pm

2 stops29h 25m

$857

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/16

10:40 am-12:45 am

2 stops24h 05m

Bangkok Suvarnabhumi

Wed 4/15

9:50 am-6:41 pm

2 stops22h 51m

$857

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 3/19

6:15 am-11:20 pm

2 stops27h 05m

Bangkok Suvarnabhumi

Tue 4/14

11:30 pm-10:22 pm

2 stops36h 52m

$862

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 3/19

5:40 pm-1:25 pm

2 stops29h 45m

Bangkok Suvarnabhumi

Wed 4/15

9:40 pm-4:33 pm

2 stops32h 53m

$862

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 1/29

7:10 am-1:25 pm

2 stops39h 15m

Bangkok Suvarnabhumi

Sun 2/15

9:30 pm-4:10 pm

2 stops33h 40m

$862

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/12

7:45 am-11:25 am

2 stops36h 40m

Bangkok Suvarnabhumi

Mon 1/26

4:55 pm-12:41 pm

3 stops34h 46m

$885

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/10

7:45 am-12:20 am

2 stops25h 35m

Bangkok Suvarnabhumi

Thu 4/30

3:40 pm-12:54 am

3 stops47h 14m

$888

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/10

7:30 am-11:25 am

3 stops37h 55m

Bangkok Suvarnabhumi

Tue 3/24

4:55 pm-6:47 pm

3 stops39h 52m

$889

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 39 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 November 21, 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 $232). Flying from Portland to Bangkok in June is currently the most expensive (average of $968). 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 November 25, 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.

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 November 25, 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.

Comfort

8.9

Food

8.7

Entertainment

8.9

Crew

9.2

Overall

8.9

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Comfort

8.9

Food

8.7

Entertainment

8.9

Crew

9.2

Overall

8.9

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Comfort

8.9

Food

8.7

Entertainment

8.9

Crew

9.2

Overall

8.9

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
8.4
Very good

Comfort

8.9

Food

8.7

Entertainment

8.9

Crew

9.2

Overall

8.9

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Comfort

8.9

Food

8.7

Entertainment

8.9

Crew

9.2

Overall

8.9

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

Comfort

8.9

Food

8.7

Entertainment

8.9

Crew

9.2

Overall

8.9

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

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 27h 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 Airlines 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?

  • 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 $57 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 Capilano Suspension Bridge. Orpheum Theatre, Pacific Central Station, and Capilano Suspension Bridge are located about 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 $36 per day.

  • What are points of interest worth seeing 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. Those looking to explore during their layover in Taipei City can rent a car from Taipei City Taiwan Taoyuan Intl for about $72 per day.

  • Where are the least popular layover locations for 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 $232). Flying from Portland to Bangkok in June is currently the most expensive (average of $968). 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 November 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$1,185FlexibilityNo cancel feeOn-timeN/A
China AirlinesCheapest$773Average$899FlexibilityNo cancel feeOn-time70%
Japan AirlinesCheapest$776Average$968FlexibilityNo cancel feeOn-time79%
STARLUX AirlinesCheapest$776Average$951FlexibilityNo cancel feeOn-timeN/A
ANACheapest$785Average$989FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,081FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$817Average$974FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$820Average$1,112FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$864Average$874FlexibilityNo cancel feeOn-time68%
Air CanadaCheapest$928Average$1,180FlexibilityNo cancel feeOn-time67%

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