฿26,739+ Cheap flights to Portland, Maine
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 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
Flights to Portland, ME in 2025
Find the latest flights to Portland in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 13 August 2025.
Find flight deals to Portland
Cheapest flights to PortlandExplore the most affordable flight options available to Portland. Find the lowest fares based on data from user searches, with prices last updated on 13 August 2025.
Explore the most affordable flight options available to Portland. Find the lowest fares based on data from user searches, with prices last updated on 13 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights to Portland that are best for you.
Fly from
Route
Depart
Return
Price
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Fri 7/11
07:10-14:12
2 stops43h 02m
Portland
Tue 11/11
15:00-11:25
3 stops32h 25m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Fri 7/11
08:15-17:48
2 stops45h 33m
Portland
Tue 11/11
19:44-06:30
2 stops46h 46m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Thu 6/11
01:00-22:19
2 stops33h 19m
Portland
Tue 11/11
05:40-23:20
2 stops29h 40m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Wed 20/8
22:05-17:46
2 stops54h 41m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Mon 18/8
22:05-17:46
2 stops54h 41m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Tue 19/8
09:45-00:17
2 stops49h 32m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Tue 19/8
09:35-13:23
3 stops38h 48m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Mon 18/8
11:55-13:23
3 stops36h 28m
BangkokPortland
BKK - PWM
BKKPWM
Bangkok Suvarnabhumi
Wed 20/8
12:15-00:17
3 stops47h 02m
Best time to book a flight to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Portland
How long is the flight to Portland?
On average, a flight from Bangkok to Portland takes 28 hours 24 minutes. Flights to Portland from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.
Rainfall in Portland by month
Plan your trip to Portland by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portland ranges from 73.0 - 115.0 mm per month. November is typically the wettest month, when rainfall can reach 115.0 mm. August is typically the driest time to visit Portland when rainfall is around 73.0 mm.
Temperature in Portland by month
Plan your trip to Portland by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
FAQs about flying to Portland
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.
Search flights to Portland by cabin class
Find flights to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 to Portland?
When you search for this flight to Portland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.
Why should you use Cheapflights to find cheap flight tickets to Portland?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Portland for you. Better yet — we are completely free to use.
Can Cheapflights find flights to Portland with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights to Portland flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights to Portland become cheaper?
Of course! You can track prices for flights to Portland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals to set up your price alerts.