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Cheap flights from Thailand to Portland from ฿17,657

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — PDX
19 Jun — 26 Jun1
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 20 May 2026.

Mon 22/617:30
BKK
-
PDX
2 stops20h 00m
Multiple Airlines
Thu 25/617:37
PDX
-
BKK
2 stops26h 08m
Multiple Airlines
Deal found 16/5฿31,560
Wed 16/902:35
BKK
-
PDX
2 stops26h 16m
แอร์แคนาดา
Sun 20/919:45
PDX
-
BKK
2 stops37h 50m
แอร์แคนาดา
Deal found 18/5฿32,017
Thu 21/523:30
BKK
-
PDX
2 stops33h 35m
แอร์แคนาดา
Thu 4/619:45
PDX
-
BKK
2 stops37h 50m
แอร์แคนาดา
Deal found 18/5฿33,127
Tue 16/617:30
BKK
-
PDX
2 stops29h 51m
Multiple Airlines
Tue 23/617:37
PDX
-
BKK
2 stops26h 08m
Multiple Airlines
Deal found 15/5฿33,323
Sat 31/1002:15
BKK
-
PDX
2 stops26h 15m
Multiple Airlines
Sun 1/1117:50
PDX
-
BKK
2 stops25h 55m
Multiple Airlines
Deal found 16/5฿33,845
Thu 17/921:10
CNX
-
PDX
2 stops35h 56m
แอร์แคนาดา
Mon 21/915:30
PDX
-
CNX
2 stops27h 15m
แอร์แคนาดา
Deal found 15/5฿33,878
Tue 11/817:50
BKK
-
PDX
2 stops29h 31m
Multiple Airlines
Wed 2/917:41
PDX
-
BKK
2 stops28h 19m
Multiple Airlines
Deal found 18/5฿34,204
Mon 31/801:35
BKK
-
PDX
2 stops25h 50m
Multiple Airlines
Tue 1/919:22
PDX
-
BKK
2 stops25h 28m
Multiple Airlines
Deal found 16/5฿34,237

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 20 May 2026.

Round-trip from

฿31,560

One-way from

฿17,657

Popular in

March

Cheapest in

August

Average price

฿30,549
22/6-25/6
  • 22/6-25/6
  • 4 total stops
  • 46h 08m total
  • Thailand to Portland
Search Deals
แอร์แคนาดา
  • แอร์แคนาดา
  • 27/5
  • 2 total stops
  • 29h 15m total
  • Thailand to Portland
Search Deals
Highest demand for flights based on searches. 45% potential increase in price (฿1,124,918 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 31% potential price decrease (฿330,319 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 20 May 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

17:30-09:21

2 stops29h 51m

Portland

Tue 23/6

17:37-09:45

2 stops26h 08m

฿33,323

Chiang MaiPortland

CNX - PDX

CNXPDX

Chiang Mai

Thu 17/9

21:10-19:06

2 stops35h 56m

Portland

Mon 21/9

15:30-08:45

2 stops27h 15m

฿33,878

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Thu 17/9

15:45-00:34

2 stops22h 49m

Portland

Sun 20/9

13:03-09:35

3 stops30h 32m

฿36,521

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 5/8

09:15-16:55

2 stops45h 40m

Portland

Sat 14/11

07:01-06:15

2 stops32h 14m

฿45,431

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Mon 29/6

10:50-23:52

2 stops27h 02m

Portland

Mon 6/7

18:00-09:45

3 stops25h 45m

฿45,790
Fastest return journey

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Tue 16/6

09:35-20:54

2 stops25h 19m

Portland

Tue 23/6

18:03-09:35

3 stops25h 32m

฿51,143

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 9/9

17:30-09:07

2 stops29h 37m

Portland

Thu 17/9

21:32-09:45

2 stops22h 13m

฿54,276

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 9/9

07:00-14:57

2 stops21h 57m

Portland

Thu 17/9

13:03-09:35

3 stops30h 32m

฿67,984
Cheapest one-way

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 24/6

10:50-23:38

2 stops26h 48m

฿19,452

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sat 15/8

13:20-09:21

2 stops34h 01m

฿19,582

Flights are sorted by cheapest return flights first.

Deals found on 17/5

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 ฿23,793). Flying from Thailand to Portland in March is currently the most expensive (average of ฿153,298). 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 20 May 2026.
Check out reviews from past customers who have flown with Korean Air 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
1,217 reviews
Check prices

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

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
1,217 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Comfort

8.3

Crew

8.7

Food

8.1

Boarding

8.5

Entertainment

8.2

Overall

8.4

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 ฿36,521, แอร์แคนาดา can have you in Portland from Thailand in 22h 49m. 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 ฿23,793). Flying from Thailand to Portland in March is currently the most expensive (average of ฿153,298). 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 Thailand to Portland

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

Top airline flying from Thailand to Portland

Discover the top airline 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 20 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest฿25,566Average฿25,566FlexibilityNo cancel feeOn-time81%
Search Korean Air 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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