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$344+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Cheap 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 March 10, 2026.

This Gurufare deal was found by Cheapflights users on 3/8. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:40 pm
PDX
-
BKK
2 stops26h 30m
Multiple Airlines
Fri 9/41:25 pm
BKK
-
PDX
2 stops24h 45m
Multiple Airlines
Deal found 3/8$833
This SmartFares deal was found by Cheapflights users on 3/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/52:50 pm
PDX
-
BKK
2 stops31h 20m
Multiple Airlines
Tue 5/191:20 pm
BKK
-
PDX
2 stops34h 27m
Multiple Airlines
Deal found 3/6$835
This China Airlines deal was found by Cheapflights users on 3/6. 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.
Sun 9/139:59 pm
PDX
-
BKK
2 stops21h 46m
Multiple Airlines
Sat 10/35:30 pm
BKK
-
PDX
2 stops30h 55m
Multiple Airlines
Deal found 3/6$838
This BusinessClass deal was found by Cheapflights users on 3/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:51 pm
PDX
-
BKK
2 stops25h 54m
Multiple Airlines
Sat 6/65:30 pm
BKK
-
PDX
2 stops30h 17m
Multiple Airlines
Deal found 3/10$839
This BusinessClass deal was found by Cheapflights users on 3/6. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/65:49 pm
PDX
-
BKK
2 stops25h 56m
Multiple Airlines
Mon 5/185:30 pm
BKK
-
PDX
2 stops29h 59m
Multiple Airlines
Deal found 3/6$840
This BusinessClass deal was found by Cheapflights users on 3/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:40 pm
PDX
-
BKK
2 stops25h 10m
Multiple Airlines
Mon 12/72:05 pm
BKK
-
PDX
2 stops25h 05m
Multiple Airlines
Deal found 3/9$842
This oojo deal was found by Cheapflights users on 3/5. 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 8/175:34 pm
PDX
-
BKK
2 stops28h 46m
Singapore Airlines
Mon 8/313:30 pm
BKK
-
PDX
2 stops31h 55m
Singapore Airlines
Deal found 3/5$844
This BusinessClass deal was found by Cheapflights users on 3/9. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:40 pm
PDX
-
BKK
2 stops23h 10m
Multiple Airlines
Tue 1/125:50 pm
BKK
-
PDX
2 stops19h 54m
Multiple Airlines
Deal found 3/9$845
This China Airlines deal was found by Cheapflights users on 3/6. 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.
Thu 10/85:40 pm
PDX
-
BKK
2 stops26h 05m
Multiple Airlines
Sun 10/185:30 pm
BKK
-
PDX
2 stops29h 55m
Multiple Airlines
Deal found 3/6$852
This oojo deal was found by Cheapflights users on 3/9. 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.
Tue 5/125:49 pm
PDX
-
BKK
2 stops28h 21m
China Airlines
Mon 6/85:30 pm
BKK
-
PDX
2 stops28h 32m
China Airlines
Deal found 3/9$854
This IEagle deal was found by Cheapflights users on 3/9. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/175:50 pm
PDX
-
BKK
2 stops26h 00m
Multiple Airlines
Thu 5/75:30 pm
BKK
-
PDX
2 stops30h 08m
Multiple Airlines
Deal found 3/9$855
This Trip.com deal was found by Cheapflights users on 3/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/78:30 am
PDX
-
DMK
2 stops44h 20m
Multiple Airlines
Wed 3/183:10 am
DMK
-
PDX
2 stops24h 40m
Multiple Airlines
Deal found 3/7$1,228

Find 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 March 10, 2026.

Round-trip from

$833
(Gurufare)

One-way from

$344
(oojo)

Popular in

December

Cheapest in

September

Average price

$927
From Portland to Bangkok
Search Deals
One-way flight from Portland to Bangkok
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 10, 2026.
Use the filters below to find and compare flights from Portland to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/5

7:15 am-9:35 am

3 stops36h 20m

Bangkok Suvarnabhumi

Thu 5/14

3:45 pm-12:35 pm

3 stops34h 50m

$967

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 4/24

7:15 am-9:35 am

3 stops36h 20m

Bangkok Suvarnabhumi

Tue 4/28

9:35 am-2:30 pm

2 stops42h 55m

$1,007

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 4/25

3:30 pm-9:35 am

3 stops28h 05m

Bangkok Suvarnabhumi

Sun 5/31

9:35 am-4:47 pm

2 stops45h 12m

$1,007
Quickest round-trip

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sun 5/3

7:45 pm-9:35 am

2 stops23h 50m

Bangkok Suvarnabhumi

Mon 5/11

3:45 pm-12:59 am

2 stops23h 14m

$1,019

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/31

10:35 pm-11:50 pm

2 stops35h 15m

Bangkok Suvarnabhumi

Tue 4/14

3:05 pm-9:03 pm

2 stops43h 58m

$1,023

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 4/11

7:14 pm-9:35 am

2 stops24h 21m

Bangkok Suvarnabhumi

Tue 4/21

3:45 pm-2:30 pm

3 stops36h 45m

$1,028

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 5/12

1:37 pm-9:35 am

2 stops29h 58m

Bangkok Suvarnabhumi

Mon 6/8

3:45 pm-12:08 pm

3 stops34h 23m

$1,058

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Fri 4/3

7:15 am-9:35 am

2 stops36h 20m

Bangkok Suvarnabhumi

Tue 6/2

7:00 am-4:47 pm

2 stops23h 47m

$1,188

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Sat 4/11

7:15 am-9:35 am

3 stops36h 20m

Bangkok Suvarnabhumi

Mon 4/20

3:45 pm-6:07 pm

3 stops40h 22m

$1,206

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 8/6

1:14 pm-9:35 am

3 stops30h 21m

Bangkok Suvarnabhumi

Thu 8/27

7:00 am-8:55 pm

2 stops27h 55m

$1,229

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 40 resultsSorted by cheapest first
1
2
3
4

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 March 6, 2026.

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, July is the cheapest month in which you can book a flight from Portland to Bangkok (average of $178). Flying from Portland to Bangkok in June is currently the most expensive (average of $900). 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.

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 March 10, 2026.
Peruse reviews from past customers who have flown with STARLUX Airlines,Korean Air, andANA 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
279 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Overall

8.9

Entertainment

8.8

Food

8.7

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
STARLUX Airlines
8.9
Very good
279 reviews
STARLUX Airlines
8.9
Very good
279 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Overall

8.9

Entertainment

8.8

Food

8.7

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
Korean Air
8.4
Very good
1,202 reviews
STARLUX Airlines
8.9
Very good
279 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Overall

8.9

Entertainment

8.8

Food

8.7

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
ANA
8.4
Very good
1,120 reviews
STARLUX Airlines
8.9
Very good
279 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Overall

8.9

Entertainment

8.8

Food

8.7

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
United Airlines
7.4
Good
9,412 reviews
STARLUX Airlines
8.9
Very good
279 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Overall

8.9

Entertainment

8.8

Food

8.7

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
Air Canada
7.1
Good
10,800 reviews
STARLUX Airlines
8.9
Very good
279 reviews

Comfort

8.9

Boarding

8.9

Crew

9.2

Overall

8.9

Entertainment

8.8

Food

8.7

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.

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.

  • How long is the flight from Portland to Bangkok?

    There are many flights that can get you from Portland to Bangkok in 36h 20m. Fly via United Airlines to get the fastest option. Portland and Bangkok are separated by a distance of 7525 mi.

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

    Delta, at $139, was found to be the cheapest airline from Portland to Bangkok.Alternate airlines to your destination round-trip include Cathay Pacific and STARLUX Airlines. These flights start at 86% lower than the current average price 3 months from now.

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

    $246 is the cheapest one-way deal found within the past few days, from Japan Airlines. You may also be able to find cheap deals on ANA and STARLUX Airlines, with prices starting from $302 and $399, 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 Seattle. Seattle is followed by Taipei City in terms of the most popular layover location on flights from Portland to Bangkok. Vancouver 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 $56 per day.

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

    The majority of Taipei City visitors spend their time at Taipei 101, Raohe Street Night Market, and Shilin Night Market. Taipei 101, Raohe Street Night Market, and Shilin Night Market are located about 21.0 mi, 21.6 mi, and 18.3 mi, respectively from Taipei City Taiwan Taoyuan Intl. Travelers in need of a car in Taipei City can rent one for about $72 per day.

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

    The majority of Vancouver visitors spend their time at Orpheum Theatre, Pacific Central Station, and Queen Elizabeth Theatre. Orpheum Theatre, Pacific Central Station, and Queen Elizabeth Theatre are located about 6.5 mi, 6.6 mi, and 6.6 mi, respectively from Vancouver Intl. Those looking to explore during their layover in Vancouver can rent a car from Vancouver Intl for about $33 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.

  • 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 $178). Flying from Portland to Bangkok in June is currently the most expensive (average of $900). 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$855FlexibilityNo cancel feeOn-timeN/A
Cathay PacificCheapest$669Average$1,096FlexibilityNo cancel feeOn-time72%
STARLUX AirlinesCheapest$757Average$893FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$759Average$901FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$776Average$941FlexibilityNo cancel feeOn-time79%
China AirlinesCheapest$781Average$899FlexibilityNo cancel feeOn-time70%
ANACheapest$785Average$1,039FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,015FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$821Average$974FlexibilityNo cancel feeOn-time69%
EVA AirCheapest$896Average$1,003FlexibilityNo cancel feeOn-time74%

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