HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bangkok

$411+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Bangkok with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Portland to Bangkok are usually found in September or April, booked 64 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 June 12, 2025.

Round-trip from

$871
(United Airlines)

One-way from

$411
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$1,548
From Portland to Bangkok
Search Deals
One-way flight from Portland to Bangkok
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. 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 7/311:37 pmPDX - BKK
2 stops48h 58mUnited Airlines
Wed 8/209:35 amBKK - PDX
2 stops37h 16mUnited Airlines
Deal found 6/11$871
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Mon 10/610:00 pmPDX - BKK
2 stops28h 40mSTARLUX Airlines
Wed 11/51:45 pmBKK - PDX
2 stops23h 55mSTARLUX Airlines
Deal found 6/12$878
This oojo deal was found by Cheapflights users on 6/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:55 pmPDX - BKK
2 stops32h 25mChina Airlines
Mon 11/1010:55 amBKK - PDX
2 stops28h 03mChina Airlines
Deal found 6/10$879
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 11/159:10 amPDX - BKK
2 stops23h 10mDelta
Fri 12/59:40 amBKK - PDX
2 stops21h 51mDelta
Deal found 6/11$899
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Wed 11/197:10 amPDX - BKK
2 stops23h 20mKorean Air
Fri 12/59:40 amBKK - PDX
2 stops24h 48mKorean Air
Deal found 6/11$905
This KAYAK deal was found by Cheapflights users on 6/11. 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.
Thu 7/319:47 amPDX - BKK
2 stops39h 43mANA
Wed 9/39:35 pmBKK - PDX
2 stops31h 07mANA
Deal found 6/11$910
This United deal was found by Cheapflights users on 6/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:55 amPDX - BKK
3 stops33h 55mMultiple Airlines
Tue 2/39:25 amBKK - PDX
2 stops23h 59mMultiple Airlines
Deal found 6/11$941
This oojo deal was found by Cheapflights users on 6/11. 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 9/298:37 pmPDX - BKK
2 stops24h 23mEVA Air
Tue 10/282:15 amBKK - PDX
2 stops28h 35mEVA Air
Deal found 6/11$975
This FlightHub deal was found by Cheapflights users on 6/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/146:15 amPDX - BKK
2 stops29h 40mChina Eastern
Mon 6/235:05 amBKK - PDX
2 stops24h 55mChina Eastern
Deal found 6/10$1,051
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Mon 10/61:25 pmPDX - BKK
2 stops26h 50mQatar Airways
Tue 11/43:00 amBKK - PDX
2 stops32h 27mQatar Airways
Deal found 6/11$1,052
This FlightHub deal was found by Cheapflights users on 6/11. 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.
Mon 12/229:30 pmPDX - BKK
2 stops31h 30mSingapore Airlines
Wed 2/46:05 pmBKK - PDX
2 stops31h 50mSingapore Airlines
Deal found 6/11$1,073
This Travelocity deal was found by Cheapflights users on 6/11. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/173:25 pmPDX - BKK
1 stop23h 50mAir Canada
Mon 12/88:35 amBKK - PDX
1 stop21h 09mAir Canada
Deal found 6/11$1,075

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 June 12, 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

Thu 7/31

1:37 pm-4:35 am

2 stops48h 58m

Bangkok Suvarnabhumi

Wed 8/20

9:35 am-8:51 am

2 stops37h 16m

$871

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 10/6

10:00 pm-4:40 pm

2 stops28h 40m

Bangkok Suvarnabhumi

Wed 11/5

1:45 pm-10:40 pm

2 stops23h 55m

$878

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 10/16

5:55 pm-4:20 pm

2 stops32h 25m

Bangkok Suvarnabhumi

Mon 11/10

10:55 am-11:58 pm

2 stops28h 03m

$879

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 11/15

9:10 am-11:20 pm

2 stops23h 10m

Bangkok Suvarnabhumi

Fri 12/5

9:40 am-4:31 pm

2 stops21h 51m

$899

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 11/19

7:10 am-9:30 pm

2 stops23h 20m

Bangkok Suvarnabhumi

Fri 12/5

9:40 am-7:28 pm

2 stops24h 48m

$905

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 7/31

9:47 am-3:30 pm

2 stops39h 43m

Bangkok Suvarnabhumi

Wed 9/3

9:35 pm-2:42 pm

2 stops31h 07m

$910

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 12/2

9:55 am-10:50 am

3 stops33h 55m

Bangkok Suvarnabhumi

Tue 2/3

9:25 am-6:24 pm

2 stops23h 59m

$941

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 9/29

8:37 pm-11:00 am

2 stops24h 23m

Bangkok Suvarnabhumi

Tue 10/28

2:15 am-4:50 pm

2 stops28h 35m

$975

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 10/6

1:25 pm-6:15 am

2 stops26h 50m

Bangkok Suvarnabhumi

Tue 11/4

3:00 am-8:27 pm

2 stops32h 27m

$1,052

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/17

3:25 pm-6:15 am

1 stop23h 50m

Bangkok Suvarnabhumi

Mon 12/8

8:35 am-2:44 pm

1 stop21h 09m

$1,075

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 27 results
1
2
3

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 June 9, 2025.

Booking 64 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, March is the cheapest month in which you can book a flight from Portland to Bangkok (average of $953). Flying from Portland to Bangkok in December is currently the most expensive (average of $1,574). 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 June 12, 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.

Rainfall in Bangkok by month

Plan your trip to Bangkok by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok ranges from 0.4 - 12.6 inches per month. September is typically the wettest month, when rainfall can reach 12.6 in. January is typically the driest time to visit Bangkok when rainfall is around 0.4 in.

Temperature in Bangkok by month

Plan your trip to Bangkok by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with STARLUX Airlines, EVA Air 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
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Boarding

9.0

Comfort

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.1
Wonderful
178 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Boarding

9.0

Comfort

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,202 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Boarding

9.0

Comfort

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,088 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Boarding

9.0

Comfort

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,490 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Boarding

9.0

Comfort

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
738 reviews
STARLUX Airlines
9.1
Wonderful
178 reviews

Entertainment

8.9

Crew

9.3

Overall

9.1

Boarding

9.0

Comfort

9.0

Food

8.8

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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 11 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

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

    United Airlines, at $871, was found to be the cheapest airline from Portland to Bangkok.Alternate airlines to your destination round-trip include STARLUX Airlines and China Airlines. These flights start at 23% lower than the current average price 3 months from now.

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

    $411 is the cheapest one-way deal found within the past few days, from ANA. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $423 and $455, 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 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?

    Pacific Central Station, Orpheum Theatre, and Capilano Suspension Bridge are the most popular attractions in Vancouver if you're in need of something to do during your layover. Pacific Central Station, Orpheum Theatre, and Capilano Suspension Bridge can be accessed by traveling approximately 6.6 mi, 6.5 mi, and 10.6 mi, respectively from Vancouver Intl. Travelers in need of a car in Vancouver can rent one for about $50 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 $55 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, Ueno Koen, and Tsukiji Outer Market. Akihabara Electric Town, Ueno Koen, and Tsukiji Outer Market are located about 34.6 mi, 34.5 mi, and 35.3 mi, respectively from Tokyo Narita. Those looking to explore during their layover in Tokyo can rent a car from Tokyo Narita 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 Seoul least frequently. San Francisco 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, March is the cheapest month in which you can book a flight from Portland to Bangkok (average of $953). Flying from Portland to Bangkok in December is currently the most expensive (average of $1,574). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$287Average$1,349FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$750Average$871FlexibilityNo cancel feeOn-time62%
ANACheapest$793Average$1,008FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$849Average$1,267FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$864Average$876FlexibilityNo cancel feeOn-time68%
STARLUX AirlinesCheapest$894Average$974FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$901Average$1,013FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$925Average$985FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$928Average$1,192FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$940Average$1,013FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights