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Cheap flights from Thailand to Portland from ฿16,769

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — PDX
19 May — 26 May1
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 19 April 2026.

Tue 16/621:40
BKK
-
PDX
2 stops38h 22m
เดลต้า
Tue 21/709:24
PDX
-
BKK
2 stops22h 21m
เดลต้า
Deal found 16/4฿29,043
Mon 14/923:30
BKK
-
PDX
2 stops30h 40m
Korean Air
Thu 17/909:40
PDX
-
BKK
2 stops23h 55m
Korean Air
Deal found 15/4฿29,617
Wed 6/519:30
BKK
-
PDX
2 stops35h 19m
Multiple Airlines
Wed 1/707:00
PDX
-
BKK
2 stops25h 40m
Multiple Airlines
Deal found 15/4฿30,414
Tue 1/902:40
BKK
-
PDX
2 stops31h 50m
Multiple Airlines
Thu 15/1021:59
PDX
-
BKK
2 stops24h 11m
Multiple Airlines
Deal found 15/4฿31,147
Mon 7/902:35
BKK
-
PDX
2 stops27h 35m
Korean Air
Tue 22/909:40
PDX
-
BKK
2 stops22h 05m
Korean Air
Deal found 19/4฿31,307
Wed 9/902:35
BKK
-
PDX
2 stops27h 58m
Korean Air
Mon 14/909:40
PDX
-
BKK
2 stops23h 55m
Korean Air
Deal found 17/4฿31,498
Mon 14/907:05
BKK
-
PDX
1 stop26h 01m
แอร์แคนาดา
Thu 17/915:30
PDX
-
BKK
2 stops29h 30m
แอร์แคนาดา
Deal found 14/4฿31,530
Tue 5/501:35
BKK
-
PDX
2 stops26h 12m
Multiple Airlines
Sat 15/807:15
PDX
-
BKK
2 stops26h 15m
Multiple Airlines
Deal found 15/4฿31,881
Thu 7/517:20
CNX
-
PDX
2 stops30h 10m
Multiple Airlines
Tue 14/717:30
PDX
-
CNX
2 stops32h 50m
Multiple Airlines
Deal found 16/4฿35,483
Tue 5/517:20
CNX
-
PDX
2 stops40h 14m
STARLUX Airlines
Sun 12/717:30
PDX
-
CNX
2 stops32h 50m
STARLUX Airlines
Deal found 16/4฿36,695
Thu 7/511:20
CNX
-
PDX
2 stops36h 10m
Multiple Airlines
Wed 15/717:51
PDX
-
CNX
2 stops26h 29m
Multiple Airlines
Deal found 16/4฿37,396
Wed 13/511:20
CNX
-
PDX
2 stops36h 09m
China Airlines
Thu 21/505:00
PDX
-
CNX
2 stops39h 20m
China Airlines
Deal found 19/4฿38,034

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 19 April 2026.

Round-trip from

฿29,043

One-way from

฿16,769

Popular in

March

Cheapest in

August

Average price

฿36,950
เดลต้า
  • เดลต้า
  • 16/6-21/7
  • 4 total stops
  • 60h 43m total
  • Thailand to Portland
Search Deals
Korean Air
  • Korean Air
  • 12/5
  • 2 total stops
  • 29h 18m total
  • Thailand to Portland
Search Deals
Highest demand for flights based on searches. 44% potential increase in price (฿1,073,095 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 31% potential price decrease (฿314,639 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 19 April 2026.
Use the filters below to find and compare flights from Thailand to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Tue 16/6

15:45-22:48

2 stops45h 03m

Portland

Tue 21/7

05:15-09:35

3 stops38h 20m

฿33,953

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Mon 20/7

17:30-09:21

2 stops29h 51m

Portland

Mon 31/8

19:22-09:45

2 stops24h 23m

฿36,886

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Mon 14/9

15:45-00:47

2 stops23h 02m

Portland

Thu 17/9

13:14-09:35

3 stops30h 21m

฿37,810

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 13/5

11:20-09:29

2 stops36h 09m

Portland

Thu 21/5

05:00-10:20

2 stops39h 20m

฿38,034
Fastest return journey

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 20/7

11:20-23:30

2 stops26h 10m

Portland

Tue 21/7

17:30-10:20

2 stops26h 50m

฿38,384

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Mon 20/7

11:20-07:37

2 stops34h 17m

Portland

Tue 21/7

17:30-10:20

2 stops26h 50m

฿39,149

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Sat 9/5

17:20-19:34

2 stops40h 14m

Portland

Tue 14/7

17:30-16:20

2 stops32h 50m

฿40,170

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Mon 4/5

01:20-16:33

2 stops53h 13m

Portland

Sat 27/6

07:00-23:20

2 stops50h 20m

฿44,250

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Wed 13/5

11:20-09:29

2 stops36h 09m

Portland

Wed 20/5

14:33-10:20

2 stops29h 47m

฿45,589

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 29/4

23:30-17:10

2 stops31h 40m

Portland

Sun 28/6

09:16-01:05

2 stops25h 49m

฿46,323

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 36 resultsSorted by cheapest first
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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 ฿23,241). Flying from Thailand to Portland in March is currently the most expensive (average of ฿149,744). 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 19 April 2026.
Check out reviews from past customers who have flown with Korean Air and Japan 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.
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,212 reviews
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Japan Airlines
8.3
Very Good
1,784 reviews
Korean Air
8.4
Very Good
1,212 reviews
Check prices

Overall

8.4

Entertainment

8.2

Food

8.1

Crew

8.7

Comfort

8.3

Boarding

8.5

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

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 ฿38,034, United Airlines can have you in Portland from Thailand in 36h 09m. The distance between Thailand and Portland is about 11714 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 ฿23,241). Flying from Thailand to Portland in March is currently the most expensive (average of ฿149,744). 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

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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 19 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest฿24,973Average฿26,018FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
STARLUX AirlinesCheapest฿27,675Average฿32,151FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
Japan AirlinesCheapest฿31,119Average฿31,163FlexibilityNo 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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