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$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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Bangkok are usually found in August or September, booked 9 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 agosto 18, 2025.

Round-trip from

$849
(United Airlines)

One-way from

$365
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$958
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 ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 18, 2025.

This United Airlines deal was found by Cheapflights users on 8/14. 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.
jue. 10/306:00 amPDX - BKK
2 stops28h 05mUnited Airlines
dom. 11/94:55 pmBKK - PDX
3 stops32h 58mUnited Airlines
Deal found 8/14$848
This United Airlines deal was found by Cheapflights users on 8/17. 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.
dom. 8/245:30 amPDX - BKK
2 stops33h 05mUnited Airlines
dom. 8/317:00 amBKK - PDX
2 stops27h 37mUnited Airlines
Deal found 8/17$849
This Trip.com deal was found by Cheapflights users on 8/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/121:25 pmPDX - BKK
2 stops32h 50mMultiple Airlines
mié. 10/221:30 pmBKK - PDX
2 stops24h 48mMultiple Airlines
Deal found 8/16$850
This Delta deal was found by Cheapflights users on 8/17. 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.
lun. 12/295:10 pmPDX - BKK
2 stops39h 10mDelta
lun. 1/269:30 pmBKK - PDX
2 stops54h 44mDelta
Deal found 8/17$851
This United Airlines deal was found by Cheapflights users on 8/15. 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.
lun. 12/16:00 amPDX - BKK
2 stops27h 05mUnited Airlines
jue. 12/117:10 amBKK - PDX
2 stops22h 37mUnited Airlines
Deal found 8/15$852
This Trip.com deal was found by Cheapflights users on 8/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/295:08 pmPDX - BKK
2 stops41h 57mMultiple Airlines
dom. 10/52:35 amBKK - PDX
2 stops50h 13mMultiple Airlines
Deal found 8/15$853
This FlightHub deal was found by Cheapflights users on 8/17. 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.
lun. 10/68:50 pmPDX - BKK
2 stops29h 50mSTARLUX Airlines
mié. 11/51:45 pmBKK - PDX
2 stops23h 55mSTARLUX Airlines
Deal found 8/17$854
This United Airlines deal was found by Cheapflights users on 8/17. 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.
lun. 8/189:47 amPDX - BKK
2 stops52h 48mUnited Airlines
lun. 8/257:00 amBKK - PDX
2 stops29h 42mUnited Airlines
Deal found 8/17$855
This oojo deal was found by Cheapflights users on 8/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/225:55 pmPDX - BKK
2 stops32h 25mChina Airlines
jue. 10/3010:55 amBKK - PDX
2 stops33h 22mChina Airlines
Deal found 8/14$856
This United Airlines deal was found by Cheapflights users on 8/14. 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.
lun. 12/293:54 pmPDX - BKK
2 stops52h 31mUnited Airlines
jue. 1/159:25 amBKK - PDX
2 stops29h 54mUnited Airlines
Deal found 8/14$859
This oojo deal was found by Cheapflights users on 8/15. 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.
sáb. 11/15:55 pmPDX - BKK
2 stops25h 55mChina Airlines
lun. 12/82:05 pmBKK - PDX
2 stops31h 13mChina Airlines
Deal found 8/15$861
This United Airlines deal was found by Cheapflights users on 8/17. 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.
lun. 12/297:45 pmPDX - BKK
2 stops48h 40mUnited Airlines
sáb. 1/247:10 amBKK - PDX
3 stops32h 09mUnited Airlines
Deal found 8/17$862

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 agosto 18, 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

jue. 10/30

6:00 am-12:05 am

2 stops28h 05m

Bangkok Suvarnabhumi

lun. 11/10

4:55 pm-10:53 am

3 stops32h 58m

$848

PortlandBangkok

PDX - BKK

PDXBKK

Portland

jue. 10/30

6:00 am-12:05 am

2 stops28h 05m

Bangkok Suvarnabhumi

mar. 11/11

4:55 pm-10:53 am

3 stops32h 58m

$848

PortlandBangkok

PDX - BKK

PDXBKK

Portland

jue. 10/30

6:00 am-12:05 am

2 stops28h 05m

Bangkok Suvarnabhumi

dom. 11/9

4:55 pm-10:53 am

3 stops32h 58m

$848

PortlandBangkok

PDX - BKK

PDXBKK

Portland

mar. 9/9

7:45 am-4:35 am

2 stops30h 50m

Bangkok Suvarnabhumi

jue. 9/18

7:00 am-10:42 pm

2 stops29h 42m

$849

PortlandBangkok

PDX - BKK

PDXBKK

Portland

lun. 12/29

7:24 pm-12:45 am

2 stops38h 21m

Bangkok Suvarnabhumi

mié. 1/21

9:30 pm-10:34 am

2 stops52h 04m

$851

PortlandBangkok

PDX - BKK

PDXBKK

Portland

lun. 12/29

5:10 pm-11:20 pm

2 stops39h 10m

Bangkok Suvarnabhumi

lun. 1/26

9:30 pm-1:14 pm

2 stops54h 44m

$851

PortlandBangkok

PDX - BKK

PDXBKK

Portland

jue. 9/11

5:30 am-11:55 pm

2 stops28h 25m

Bangkok Suvarnabhumi

jue. 9/18

7:00 am-6:29 pm

2 stops25h 29m

$852

PortlandBangkok

PDX - BKK

PDXBKK

Portland

lun. 12/1

6:00 am-12:05 am

2 stops27h 05m

Bangkok Suvarnabhumi

jue. 12/11

7:10 am-2:47 pm

2 stops22h 37m

$852

PortlandBangkok

PDX - BKK

PDXBKK

Portland

mié. 9/10

7:45 am-11:55 pm

2 stops26h 10m

Bangkok Suvarnabhumi

jue. 9/18

7:00 am-10:42 pm

2 stops29h 42m

$852

PortlandBangkok

PDX - BKK

PDXBKK

Portland

lun. 10/6

8:50 pm-4:40 pm

2 stops29h 50m

Bangkok Suvarnabhumi

mié. 11/5

1:45 pm-8:37 pm

2 stops21h 52m

$854

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 33 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 August 8, 2025.

Booking 9 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 $938). Flying from Portland to Bangkok in December is currently the most expensive (average of $1,552). 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 agosto 18, 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 agosto 18, 2025.
Peruse reviews from past customers who have flown with STARLUX Airlines, ANA, and Japan Airlines 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
9.0
Wonderful
206 reviews

Overall

9.0

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

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
9.0
Wonderful
206 reviews
STARLUX Airlines
9.0
Wonderful
206 reviews

Overall

9.0

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

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.
ANA
8.4
Very good
933 reviews
STARLUX Airlines
9.0
Wonderful
206 reviews

Overall

9.0

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

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
1,549 reviews
STARLUX Airlines
9.0
Wonderful
206 reviews

Overall

9.0

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

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.
United Airlines
7.4
Good
8,925 reviews
STARLUX Airlines
9.0
Wonderful
206 reviews

Overall

9.0

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

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.
Air Canada
7.1
Good
9,992 reviews
STARLUX Airlines
9.0
Wonderful
206 reviews

Overall

9.0

Entertainment

8.9

Crew

9.3

Comfort

9.0

Boarding

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 13 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?

    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 Korean Air. 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 $83 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 $83 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 $64 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, September is the cheapest month in which you can book a flight from Portland to Bangkok (average of $938). Flying from Portland to Bangkok in December is currently the most expensive (average of $1,552). 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 agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$1,349FlexibilityNo cancel feeOn-timeN/A
China EasternCheapest$750Average$871FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$795Average$1,194FlexibilityNo cancel feeOn-time81%
ANACheapest$796Average$989FlexibilityNo cancel feeOn-time80%
Singapore AirlinesCheapest$820Average$1,011FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$837Average$908FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$845Average$962FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$852Average$1,012FlexibilityNo cancel feeOn-time69%
Qatar AirwaysCheapest$864Average$874FlexibilityNo cancel feeOn-time68%
Japan AirlinesCheapest$924Average$984FlexibilityNo cancel feeOn-time79%

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