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$348+ 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 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Bangkok are usually found in September or October, booked 45 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 10, 2025.

Round-trip from

$780
(oojo)

One-way from

$348
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$1,019
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. 9% potential increase in price ($114 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 November 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 November 10, 2025.

This oojo deal was found by Cheapflights users on 11/8. 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 12/45:41 pmPDX - BKK
2 stops25h 09mChina Airlines
Tue 12/165:50 pmBKK - PDX
2 stops30h 46mChina Airlines
Deal found 11/8$781
This oojo deal was found by Cheapflights users on 11/9. 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 12/69:30 pmPDX - BKK
2 stops45h 20mChina Airlines
Mon 2/22:35 amBKK - PDX
2 stops46h 00mChina Airlines
Deal found 11/9$788
This IEagle deal was found by Cheapflights users on 11/7. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1112:33 pmPDX - BKK
2 stops30h 17mMultiple Airlines
Wed 12/172:05 pmBKK - PDX
2 stops34h 33mMultiple Airlines
Deal found 11/7$792
This China Airlines deal was found by Cheapflights users on 11/8. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:20 amPDX - BKK
2 stops27h 15mMultiple Airlines
Fri 11/1410:55 amBKK - PDX
2 stops26h 39mMultiple Airlines
Deal found 11/8$801
This IEagle deal was found by Cheapflights users on 11/8. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:41 pmPDX - BKK
2 stops25h 09mMultiple Airlines
Sat 12/135:50 pmBKK - PDX
2 stops30h 46mMultiple Airlines
Deal found 11/8$802
This oojo deal was found by Cheapflights users on 11/8. 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 11/245:44 pmPDX - BKK
2 stops40h 51mChina Airlines
Tue 12/232:05 pmBKK - PDX
2 stops31h 13mChina Airlines
Deal found 11/8$803
This China Airlines deal was found by Cheapflights users on 11/8. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:41 pmPDX - BKK
2 stops25h 09mMultiple Airlines
Mon 12/85:50 pmBKK - PDX
2 stops30h 46mMultiple Airlines
Deal found 11/8$810
This oojo deal was found by Cheapflights users on 11/9. 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 11/241:24 pmPDX - BKK
2 stops32h 41mChina Airlines
Wed 12/242:05 pmBKK - PDX
2 stops34h 33mChina Airlines
Deal found 11/9$824
This oojo deal was found by Cheapflights users on 11/9. 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 11/105:55 pmPDX - BKK
2 stops24h 55mChina Airlines
Sun 11/162:35 amBKK - PDX
2 stops36h 02mChina Airlines
Deal found 11/9$825
This oojo deal was found by Cheapflights users on 11/10. 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.
Sun 11/231:24 pmPDX - BKK
2 stops29h 26mChina Airlines
Tue 12/232:05 pmBKK - PDX
2 stops31h 13mChina Airlines
Deal found 11/10$834
This oojo deal was found by Cheapflights users on 11/8. 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 12/75:41 pmPDX - BKK
2 stops25h 09mChina Airlines
Sun 12/145:50 pmBKK - PDX
2 stops30h 46mChina Airlines
Deal found 11/8$840
This Trip.com deal was found by Cheapflights users on 11/8. 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.
Mon 11/105:55 pmPDX - DMK
2 stops39h 20mMultiple Airlines
Wed 11/263:10 amDMK - PDX
2 stops42h 08mMultiple Airlines
Deal found 11/8$920

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 10, 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 - DMK

PDXDMK

Portland

Fri 1/23

9:50 am-10:05 pm

2 stops21h 15m

Bangkok Don Mueang Intl

Sat 1/31

8:45 am-6:30 pm

2 stops24h 45m

$881

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 1/30

2:57 pm-9:50 am

2 stops27h 53m

Bangkok Suvarnabhumi

Fri 2/20

10:55 am-12:06 am

2 stops28h 11m

$904

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/9

9:30 pm-12:35 pm

2 stops25h 05m

Bangkok Suvarnabhumi

Wed 3/11

5:40 pm-10:26 pm

2 stops42h 46m

$927

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 2/19

5:23 am-12:45 am

2 stops28h 22m

Bangkok Suvarnabhumi

Sun 3/1

12:55 am-12:17 am

2 stops38h 22m

$947

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 11/24

7:15 am-11:20 pm

2 stops25h 05m

Bangkok Suvarnabhumi

Tue 12/23

2:05 am-11:38 am

2 stops24h 33m

$952

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 1/19

7:51 pm-11:25 am

2 stops24h 34m

Bangkok Suvarnabhumi

Mon 2/9

4:55 pm-12:41 pm

3 stops34h 46m

$956

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 1/8

5:35 am-11:25 am

2 stops38h 50m

Bangkok Suvarnabhumi

Thu 1/22

4:55 pm-12:33 pm

3 stops34h 38m

$956

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 2/19

7:30 am-11:25 am

2 stops36h 55m

Bangkok Suvarnabhumi

Tue 3/3

4:55 pm-12:38 pm

3 stops34h 43m

$956

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 2/17

3:50 pm-11:25 am

3 stops28h 35m

Bangkok Suvarnabhumi

Mon 3/2

4:55 pm-10:59 pm

2 stops21h 04m

$956

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 1/18

1:35 pm-11:25 am

2 stops54h 50m

Bangkok Suvarnabhumi

Thu 2/5

4:55 pm-2:46 pm

3 stops36h 51m

$963

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 41 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 7, 2025.

Booking 45 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 $227). 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 10, 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 10, 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
222 reviews

Comfort

8.9

Crew

9.2

Boarding

9.0

Entertainment

8.9

Overall

8.9

Food

8.7

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
222 reviews
STARLUX Airlines
8.9
Very good
222 reviews

Comfort

8.9

Crew

9.2

Boarding

9.0

Entertainment

8.9

Overall

8.9

Food

8.7

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
1,162 reviews
STARLUX Airlines
8.9
Very good
222 reviews

Comfort

8.9

Crew

9.2

Boarding

9.0

Entertainment

8.9

Overall

8.9

Food

8.7

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
1,003 reviews
STARLUX Airlines
8.9
Very good
222 reviews

Comfort

8.9

Crew

9.2

Boarding

9.0

Entertainment

8.9

Overall

8.9

Food

8.7

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
9,012 reviews
STARLUX Airlines
8.9
Very good
222 reviews

Comfort

8.9

Crew

9.2

Boarding

9.0

Entertainment

8.9

Overall

8.9

Food

8.7

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
10,436 reviews
STARLUX Airlines
8.9
Very good
222 reviews

Comfort

8.9

Crew

9.2

Boarding

9.0

Entertainment

8.9

Overall

8.9

Food

8.7

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 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 25h 05m. Fly via STARLUX Airlines, 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 Japan Airlines and STARLUX 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. Taipei City 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 $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?

    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. Seoul comes in third to last in terms of the least popular layover locations on 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 $227). 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 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$227Average$1,207FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$776Average$966FlexibilityNo cancel feeOn-time79%
STARLUX AirlinesCheapest$777Average$953FlexibilityNo cancel feeOn-timeN/A
ANACheapest$793Average$983FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,083FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$817Average$976FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$820Average$1,113FlexibilityNo cancel feeOn-time81%
China AirlinesCheapest$835Average$912FlexibilityNo cancel feeOn-time70%
Qatar AirwaysCheapest$864Average$874FlexibilityNo cancel feeOn-time68%
Air CanadaCheapest$928Average$1,175FlexibilityNo cancel feeOn-time67%

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