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$411+ 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 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
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Cheap flight deals from Portland to Thailand

Keep the following information in mind while searching for Portland to Thailand flight deals. Data was last updated June 12, 2025.

Round-trip from

$790
(Trip.com)

One-way from

$411
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$1,548
From Portland to Thailand
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One-way flight from Portland to Thailand
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Highest demand for flights based on searches. 8% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:55 pmPDX - CNX
2 stops39h 00mKorean Air
Sat 9/1311:15 pmCNX - PDX
2 stops28h 04mKorean Air
Deal found 6/11$790
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 11/103:30 pmPDX - CNX
2 stops27h 55mChina Airlines
Wed 12/311:25 amCNX - PDX
2 stops26h 54mChina Airlines
Deal found 6/11$870
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.
Fri 9/58:55 amPDX - HKT
2 stops23h 15mDelta
Tue 9/1611:25 pmHKT - PDX
2 stops31h 41mDelta
Deal found 6/11$890
This Gurufare deal was found by Cheapflights users on 6/9. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:10 pmPDX - HKT
2 stops38h 30mKorean Air
Sat 11/811:20 pmHKT - PDX
2 stops36h 23mKorean Air
Deal found 6/9$894
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.
Tue 9/239:30 pmPDX - CNX
2 stops28h 50mSTARLUX Airlines
Tue 9/305:20 pmCNX - PDX
2 stops41h 05mSTARLUX Airlines
Deal found 6/12$897
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

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 June 12, 2025.
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

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Sat 8/30

4:55 pm-9:55 pm

2 stops39h 00m

Chiang Mai

Sat 9/13

11:15 pm-1:19 pm

2 stops28h 04m

$790

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Mon 11/10

3:30 pm-10:25 am

2 stops27h 55m

Chiang Mai

Wed 12/3

11:25 am-11:19 pm

2 stops26h 54m

$870

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

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Fri 9/5

8:55 am-10:10 pm

2 stops23h 15m

Phuket City

Tue 9/16

11:25 pm-5:06 pm

2 stops31h 41m

$890

PortlandPhuket City

PDX - HKT

PDXHKT

Portland

Thu 10/30

5:10 pm-9:40 pm

2 stops38h 30m

Phuket City

Sat 11/8

11:20 pm-8:43 pm

2 stops36h 23m

$894

PortlandChiang Mai

PDX - CNX

PDXCNX

Portland

Tue 9/23

9:30 pm-4:20 pm

2 stops28h 50m

Chiang Mai

Tue 9/30

5:20 pm-8:25 pm

2 stops41h 05m

$897

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 53 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, March is the cheapest month in which you can book a flight from Portland to Thailand (average of $953). Flying from Portland to Thailand 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 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 June 12, 2025.

When flying from Portland to Thailand, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Thailand by month

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

In terms of precipitation, rainfall in Thailand 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 Thailand when rainfall is around 0.4 in.

Temperature in Thailand by month

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

If weather is an important factor for your trip to Thailand, 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 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 June 12, 2025.
Peruse reviews from past customers who have flown with STARLUX Airlines, EVA Air and Korean Air from Portland to Thailand to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
178 reviews

Crew

9.3

Entertainment

8.9

Overall

9.1

Comfort

9.0

Food

8.8

Boarding

9.0

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

Crew

9.3

Entertainment

8.9

Overall

9.1

Comfort

9.0

Food

8.8

Boarding

9.0

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

Crew

9.3

Entertainment

8.9

Overall

9.1

Comfort

9.0

Food

8.8

Boarding

9.0

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

Crew

9.3

Entertainment

8.9

Overall

9.1

Comfort

9.0

Food

8.8

Boarding

9.0

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

Crew

9.3

Entertainment

8.9

Overall

9.1

Comfort

9.0

Food

8.8

Boarding

9.0

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

Crew

9.3

Entertainment

8.9

Overall

9.1

Comfort

9.0

Food

8.8

Boarding

9.0

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 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.

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

    For one-way options, check prices for ANA. According to our data, you can fly for as low as $411. Users have also found prices from $423 and $455 on United Airlines and Delta, respectively.

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

    Most travelers choose Portland - Bangkok Suvarnabhumi, Portland - Chiang Mai or Portland - Bangkok Don Mueang Intl 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, March is the cheapest month in which you can book a flight from Portland to Thailand (average of $953). Flying from Portland to Thailand 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

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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
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Portland to Singapore flights
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Boise to Suvarnabhumi flights
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Portland to Mumbai flights
Portland to Hyderabad flights
Portland to Capital flights
Portland to Hongqiao Intl flights
Portland to Surabaya flights
Portland to Bangalore flights
Eugene to Suvarnabhumi flights
Portland to Dhaka flights
Portland to Fukuoka flights
Portland to Don Mueang Intl flights
Portland to Pu Dong flights
Redmond to Suvarnabhumi flights
Portland to Malé flights
Portland to Chiang Mai flights
Portland to Kathmandu flights
Portland to Chubu Centrair Intl flights
Boise to Ho Chi Minh City flights
Portland to Soekarno-Hatta Intl flights
Portland to Chennai flights
Portland to Kuala Lumpur Intl flights
Portland to Chitose flights
Portland to Colombo flights
Portland to Guangzhou flights
Portland to Cochin flights
Boise to Denpasar flights
Boise to Incheon Intl flights
Portland to Cebu City flights
Portland to Okinawa 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$287Average$1,349FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$479Average$1,080FlexibilityNo cancel feeOn-time81%
China EasternCheapest$750Average$871FlexibilityNo cancel feeOn-time62%
Korean AirCheapest$789Average$1,419FlexibilityNo cancel feeOn-time81%
ANACheapest$793Average$1,008FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$864Average$1,207FlexibilityNo cancel feeOn-time68%
STARLUX AirlinesCheapest$894Average$974FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$925Average$985FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$928Average$1,192FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$940Average$1,013FlexibilityNo cancel feeOn-time69%

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