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$361+ Cheap flights from Portland (PDX) to Thailand

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BKK
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Portland to Thailand

Cheapest flights from Portland to Thailand
Explore the most affordable flight options available from Portland to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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 2/195:35 am
PDX
-
BKK
2 stops38h 50m
United Airlines
Wed 3/114:55 pm
BKK
-
PDX
2 stops21h 40m
United Airlines
Deal found 1/27$888
This oojo deal was found by Cheapflights users on 1/27. 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 1/297:20 am
PDX
-
BKK
2 stops25h 20m
EVA Air
Sun 2/155:15 pm
BKK
-
PDX
2 stops32h 41m
EVA Air
Deal found 1/27$889
This oojo deal was found by Cheapflights users on 1/27. 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 2/97:20 am
PDX
-
BKK
2 stops25h 20m
EVA Air
Tue 2/242:15 am
BKK
-
PDX
2 stops26h 22m
EVA Air
Deal found 1/27$890
This United Airlines deal was found by Cheapflights users on 1/26. 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 4/215:30 am
PDX
-
BKK
2 stops38h 05m
United Airlines
Sun 5/173:45 pm
BKK
-
PDX
2 stops43h 13m
United Airlines
Deal found 1/26$892
This KAYAK deal was found by Cheapflights users on 1/26. 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.
Sun 3/11:36 pm
PDX
-
BKK
2 stops31h 59m
Multiple Airlines
Tue 3/311:10 pm
BKK
-
PDX
2 stops34h 25m
Multiple Airlines
Deal found 1/26$894
This oojo deal was found by Cheapflights users on 1/28. 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 3/106:00 am
PDX
-
BKK
2 stops24h 00m
Singapore Airlines
Tue 4/79:15 pm
BKK
-
PDX
2 stops30h 35m
Singapore Airlines
Deal found 1/28$895
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/17:57 pm
PDX
-
BKK
3 stops48h 28m
United Airlines
Thu 4/163:45 pm
BKK
-
PDX
2 stops22h 59m
United Airlines
Deal found 1/26$896
This Gurufare deal was found by Cheapflights users on 1/27. 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.
Wed 4/227:15 am
PDX
-
BKK
2 stops31h 50m
ANA
Mon 6/17:05 am
BKK
-
PDX
1 stop26h 00m
ANA
Deal found 1/27$899
This United Airlines deal was found by Cheapflights users on 1/25. 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 4/237:15 am
PDX
-
BKK
2 stops36h 20m
United Airlines
Tue 5/193:45 pm
BKK
-
PDX
3 stops41h 01m
United Airlines
Deal found 1/25$900
This Expedia deal was found by Cheapflights users on 1/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/15:35 pm
PDX
-
BKK
2 stops38h 25m
Multiple Airlines
Sun 2/82:00 pm
BKK
-
PDX
2 stops34h 15m
Multiple Airlines
Deal found 1/26$904
This oojo deal was found by Cheapflights users on 1/26. 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 3/163:52 pm
PDX
-
BKK
2 stops31h 13m
China Airlines
Sun 4/52:40 am
BKK
-
PDX
2 stops44h 55m
China Airlines
Deal found 1/26$905
This oojo deal was found by Cheapflights users on 1/27. 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 8/152:55 pm
PDX
-
HKT
2 stops29h 55m
Singapore Airlines
Thu 8/273:00 pm
HKT
-
PDX
2 stops32h 25m
Singapore Airlines
Deal found 1/27$906

Find flight deals from Portland to Thailand

Keep the following information in mind while searching for Portland to Thailand flight deals. Data was last updated January 28, 2026.

Round-trip from

$888
(United Airlines)

One-way from

$361
(oojo)

Popular in

December

Cheapest in

August

Average price

$978
From Portland to Thailand
Search Deals
One-way flight from Portland to Thailand
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Thailand 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 January 28, 2026.
Use the filters below to find and compare flights from Portland to Thailand that are best for you.

Fly from

Portland

Fly to

Thailand

Route

Depart

Return

Price

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 3/9

7:30 am-11:25 am

3 stops37h 55m

Bangkok Suvarnabhumi

Thu 3/12

4:55 pm-11:04 pm

2 stops20h 09m

$888

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Mon 4/6

7:15 am-9:35 am

3 stops36h 20m

Bangkok Suvarnabhumi

Mon 4/20

3:45 pm-12:41 am

2 stops22h 56m

$888

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 4/22

1:39 pm-9:35 am

3 stops29h 56m

Bangkok Suvarnabhumi

Sun 5/17

3:45 pm-6:46 pm

2 stops41h 01m

$888

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 4/21

5:30 am-9:35 am

3 stops38h 05m

Bangkok Suvarnabhumi

Sun 5/17

3:45 pm-12:35 pm

2 stops34h 50m

$888

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 2/19

5:35 am-11:25 am

2 stops38h 50m

Bangkok Suvarnabhumi

Wed 3/11

4:55 pm-12:35 am

2 stops21h 40m

$888

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 4/21

5:30 am-9:35 am

3 stops38h 05m

Bangkok Suvarnabhumi

Mon 5/18

3:45 pm-6:46 pm

3 stops41h 01m

$892

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Tue 3/17

5:30 am-11:25 am

2 stops39h 55m

Bangkok Suvarnabhumi

Sun 4/12

3:45 pm-8:48 pm

2 stops43h 03m

$892

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Wed 4/22

7:15 am-9:35 am

3 stops36h 20m

Bangkok Suvarnabhumi

Mon 5/11

3:45 pm-6:46 pm

3 stops41h 01m

$892

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 4/23

3:30 pm-9:35 am

2 stops28h 05m

Bangkok Suvarnabhumi

Sun 5/17

3:45 pm-6:46 pm

2 stops41h 01m

$892

PortlandBangkok

PDX - BKK

PDXBKK

Portland

Thu 4/23

1:39 pm-9:35 am

2 stops29h 56m

Bangkok Suvarnabhumi

Mon 5/18

3:45 pm-6:46 pm

3 stops41h 01m

$900

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 54 results
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Best time to book a flight from Portland to Thailand

Have a flexible travel schedule? Discover the best time to fly to Thailand 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 Thailand

What is the cheapest month to book a flight from Portland to Thailand?

Currently, July is the cheapest month in which you can book a flight from Portland to Thailand (average of $243). Flying from Portland to Thailand 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.

What is the cheapest time of day to fly from PDX to TH?

Find hourly flight availability from Portland to Thailand. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 28, 2026.

It’s optimal to fly from Portland to Thailand in the morning. By choosing this option you can save up to 66% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Portland to Thailand?

Use this chart to determine the cheapest time to fly round-trip from Portland to Thailand. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Portland to Thailand flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Thailand

Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated January 28, 2026.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air, and Korean Air from Portland to Thailand by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very good
268 reviews

Boarding

8.9

Food

8.6

Overall

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.8

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
268 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Boarding

8.9

Food

8.6

Overall

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.8

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.
EVA Air
8.4
Very good
1,334 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Boarding

8.9

Food

8.6

Overall

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.8

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
1,188 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Boarding

8.9

Food

8.6

Overall

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.8

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
9,213 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Boarding

8.9

Food

8.6

Overall

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.8

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
10,666 reviews
STARLUX Airlines
8.9
Very good
268 reviews

Boarding

8.9

Food

8.6

Overall

8.9

Comfort

8.8

Crew

9.1

Entertainment

8.8

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 Thailand. 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 Thailand?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Thailand.

  • How long is the flight from Portland to Thailand?

    Airlines like United Airlines, Singapore Airlines, and Cathay Pacific fly from Portland to Thailand in about 30h. The time it takes to get you to your destination can typically vary by up to 22h 47m. The distance from Portland to Thailand is about 7941 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Japan Airlines. According to our data, you can fly for as low as $246. Users have also found prices from $302 and $387 on ANA and Qatar Airways, respectively.

  • What are the most popular routes from Portland to Thailand?

    Most travelers choose Portland - Bangkok Suvarnabhumi, Portland - Phuket City or Portland - Chiang Mai when deciding on the best route from Portland to Thailand.

  • Can I find deals for flights from Portland to Thailand that include hotel bookings?

    Yes. In addition to deals on Portland to Thailand flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Thailand?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Thailand.

  • Can I find deals for business class flights from Portland to Thailand?

    Yes. Cheapflights offers flight deals from Portland to Thailand 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 Thailand?

    Currently, July is the cheapest month in which you can book a flight from Portland to Thailand (average of $243). Flying from Portland to Thailand 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

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

Alternative routes for Portland to Thailand

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Narita flights
Portland to Haneda flights
Portland to Suvarnabhumi flights
Boise to Narita flights
Boise to Haneda flights
Portland to Incheon Intl flights
Portland to Hong Kong flights
Portland to Ho Chi Minh City flights
Portland to Manila flights
Portland to Kansai Intl flights
Portland to Denpasar flights
Portland to Gimpo Intl flights
Portland to Osaka Itami flights
Portland to Hongqiao Intl flights
Eugene to Suvarnabhumi flights
Medford to Narita flights
Medford to Haneda flights
Boise to Suvarnabhumi flights
Portland to Pu Dong flights
Portland to New Delhi flights
Portland to Bangalore flights
Portland to Taiwan Taoyuan Intl flights
Portland to Chubu Centrair Intl flights
Portland to Mumbai flights
Portland to Kobe flights
Portland to Cebu City flights
Portland to Chitose flights
Portland to Phuket City flights
Boise to Ho Chi Minh City flights
Portland to Kuala Lumpur Intl flights
Eugene to Narita flights
Portland to Sung Shan flights
Boise to Manila flights
Portland to Hyderabad flights
Eugene to Haneda flights
Portland to Kolkata flights
Portland to Soekarno-Hatta Intl flights
Portland to Singapore flights
Redmond to Suvarnabhumi flights
Portland to Hanoi flights
Boise to Kuala Lumpur Intl flights
Portland to Chennai flights
Portland to Da Nang flights
Medford to Suvarnabhumi flights
Portland to Colombo flights
Portland to Tbilisi flights
Portland to Malé flights
Boise to Incheon Intl flights
Portland to Guangzhou flights
Eugene to Incheon Intl flights

Top 10 airlines flying from Portland to Thailand

Discover the top 10 airlines that operate flights from Portland to Thailand. 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$139Average$855FlexibilityNo cancel feeOn-timeN/A
STARLUX AirlinesCheapest$757Average$935FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$759Average$980FlexibilityNo cancel feeOn-time81%
Japan AirlinesCheapest$776Average$969FlexibilityNo cancel feeOn-time79%
China AirlinesCheapest$781Average$899FlexibilityNo cancel feeOn-time70%
ANACheapest$785Average$983FlexibilityNo cancel feeOn-time80%
Korean AirCheapest$795Average$1,051FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$821Average$971FlexibilityNo cancel feeOn-time69%
Qatar AirwaysCheapest$864Average$1,033FlexibilityNo cancel feeOn-time68%
EVA AirCheapest$896Average$1,035FlexibilityNo cancel feeOn-time74%

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