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Cheap flights from Thailand to Portland from ฿15,186

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — PDX
26 Mar — 2 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Portland

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Portland
Explore the most affordable flight options available from Thailand to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 February 2026.

Sun 12/723:40
BKK
-
PDX
2 stops31h 04m
Multiple Airlines
Wed 22/707:00
PDX
-
BKK
2 stops25h 40m
Multiple Airlines
Deal found 22/2฿23,833
Fri 4/913:25
BKK
-
PDX
2 stops34h 00m
Multiple Airlines
Sun 20/917:55
PDX
-
BKK
2 stops28h 15m
Multiple Airlines
Deal found 24/2฿24,174
Tue 12/521:40
BKK
-
PDX
2 stops31h 08m
Korean Air
Wed 3/611:20
PDX
-
BKK
2 stops22h 15m
Korean Air
Deal found 23/2฿26,282
Sun 10/501:35
BKK
-
PDX
2 stops26h 12m
Multiple Airlines
Tue 2/617:59
PDX
-
BKK
2 stops26h 51m
Multiple Airlines
Deal found 20/2฿26,778
Tue 5/501:35
BKK
-
PDX
2 stops26h 12m
Multiple Airlines
Sat 15/814:48
PDX
-
BKK
2 stops30h 22m
Multiple Airlines
Deal found 23/2฿26,809
Mon 11/501:35
BKK
-
PDX
2 stops26h 12m
Multiple Airlines
Wed 3/617:40
PDX
-
BKK
2 stops27h 40m
Multiple Airlines
Deal found 20/2฿27,119
Tue 5/501:35
BKK
-
PDX
2 stops26h 12m
EVA Air
Sat 15/817:35
PDX
-
BKK
2 stops27h 45m
EVA Air
Deal found 24/2฿27,335
Sun 12/716:45
BKK
-
PDX
2 stops34h 51m
EVA Air
Wed 22/717:35
PDX
-
BKK
2 stops27h 35m
EVA Air
Deal found 23/2฿27,552
Wed 8/413:25
BKK
-
PDX
2 stops24h 19m
Multiple Airlines
Wed 15/407:14
PDX
-
BKK
2 stops25h 26m
Multiple Airlines
Deal found 22/2฿28,048
Sat 23/501:35
BKK
-
PDX
2 stops26h 15m
Multiple Airlines
Mon 31/807:00
PDX
-
BKK
2 stops26h 30m
Multiple Airlines
Deal found 21/2฿28,544
Sun 10/521:40
BKK
-
PDX
2 stops32h 43m
Korean Air
Tue 12/517:18
PDX
-
BKK
2 stops38h 27m
Korean Air
Deal found 20/2฿29,102
Wed 23/911:15
CNX
-
PDX
2 stops36h 16m
แอร์แคนาดา
Sun 27/910:10
PDX
-
CNX
2 stops40h 25m
แอร์แคนาดา
Deal found 20/2฿33,937

Find flight deals from Thailand to Portland

Keep the following information in mind while searching for Thailand to Portland flight deals. Data was last updated 24 February 2026.

Round-trip from

฿23,833

One-way from

฿15,186

Popular in

February

Cheapest in

August

Average price

฿36,819
12/7-22/7
  • 12/7-22/7
  • 4 total stops
  • 56h 44m total
  • Thailand to Portland
Search Deals
11/6
  • 11/6
  • 2 total stops
  • 24h 46m total
  • Thailand to Portland
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (฿81,857 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿18,683 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand to Portland 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 17,341 searches. Data last updated 24 February 2026.
Use the filters below to find and compare flights from Thailand to Portland that are best for you.

Fly from

Thailand

Fly to

Portland

Route

Depart

Return

Price

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Mon 11/5

01:35-13:47

2 stops26h 12m

Portland

Wed 3/6

17:40-11:20

2 stops27h 40m

฿27,119

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sun 10/5

21:40-16:23

2 stops32h 43m

Portland

Tue 12/5

17:18-21:45

2 stops38h 27m

฿29,102

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 8/4

21:40-23:59

2 stops40h 19m

Portland

Tue 21/4

18:05-23:35

2 stops39h 30m

฿30,373

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sun 12/7

09:35-10:20

2 stops62h 45m

Portland

Wed 22/7

07:00-09:35

3 stops36h 35m

฿36,850

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sun 10/5

15:45-00:59

2 stops23h 14m

Portland

Tue 12/5

05:30-09:35

3 stops38h 05m

฿36,974

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sun 24/5

15:45-10:20

2 stops32h 35m

Portland

Mon 31/8

18:00-09:35

3 stops25h 35m

฿36,974

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 6/5

15:45-15:03

3 stops37h 18m

Portland

Sat 15/8

18:00-09:35

2 stops25h 35m

฿37,408

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 8/4

15:45-12:25

3 stops34h 40m

Portland

Wed 15/4

05:30-09:35

3 stops38h 05m

฿40,352

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 18/3

18:50-09:50

3 stops53h 00m

Portland

Wed 1/4

17:49-17:50

2 stops34h 01m

฿49,402

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 18/3

19:45-20:50

3 stops39h 05m

Portland

Wed 1/4

13:35-11:15

3 stops31h 40m

฿55,508

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 26 results
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Best time to book a flight from Thailand to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Thailand with our price prediction graph.
Estimated return 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 Thailand to Portland

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

Currently, August is the cheapest month in which you can book a flight from Thailand to Portland (average of ฿22,594). Flying from Thailand to Portland in July is currently the most expensive (average of ฿31,024). 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 Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated 24 February 2026.
Check out reviews from past customers who have flown with STARLUX Airlines, Korean Air, andJapan Airlines from Thailand to Portland 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
Check prices

Food

8.7

Boarding

8.9

Overall

8.9

Comfort

8.9

Crew

9.2

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
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Boarding

8.9

Overall

8.9

Comfort

8.9

Crew

9.2

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
1,195 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Boarding

8.9

Overall

8.9

Comfort

8.9

Crew

9.2

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.
Japan Airlines
8.3
Very Good
1,714 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Boarding

8.9

Overall

8.9

Comfort

8.9

Crew

9.2

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 Thailand to Portland. 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 into for flights to Portland from Thailand?

    Located just 9.7 km from the city centre, Portland (PDX) is the airport most travelers will use when flying to Portland from Thailand.

  • How long is the flight from Thailand to Portland?

    For as low as ฿29,102, Korean Air can have you in Portland from Thailand in 32h 43m. The distance between Thailand and Portland is about 12110 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Thailand to Portland (average of ฿22,594). Flying from Thailand to Portland in July is currently the most expensive (average of ฿31,024). 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

Travelling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Wilsonville

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 Thailand to Portland

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Portland flights

Top 3 airlines flying from Thailand to Portland

Discover the top 3 airlines that operate flights from Thailand to Portland. 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 17,341 searches. Data last updated 24 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest฿24,277Average฿27,039FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
STARLUX AirlinesCheapest฿26,904Average฿30,928FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
Japan AirlinesCheapest฿30,252Average฿30,295FlexibilityNo cancel feeOn-time79%
Search Japan Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Thailand to Portland?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Thailand to Portland. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Portland?

Millions of users choose and trust Cheapflights to book the best flight deals from Thailand to Portland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Thailand to Portland with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Thailand to Portland flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Thailand to Portland become cheaper?

Yes, Cheapflights offers price alerts on Thailand to Portland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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