$920+ Cheap flights from Portland, ME (PWM) to Porto (OPO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — OPO
May 4 — May 111
1 adult, Economy
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Find cheap flights from Portland to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 2 stars |
Round-trip from | $920 (oojo) |
Find flight deals from Portland to Porto
Cheapest flights from Portland to PortoExplore the most affordable flight options available from Portland to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
Explore the most affordable flight options available from Portland to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.
This oojo deal was found by Cheapflights users on 4/29. 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.
Fri 9/197:30 amPWM - OPO
2 stops27h 20mTurkish Airlines
Sun 10/55:10 pmOPO - PWM
2 stops49h 06mTurkish Airlines
Deal found 4/29![Turkish Airlines logo]()
$920
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 9/193:06 pmPWM - OPO
1 stop10h 44mUnited Airlines
Sun 10/56:00 amOPO - PWM
2 stops37h 32mUnited Airlines
Deal found 4/29![United Airlines logo]()
$988
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:23 pmPWM - OPO
2 stops34h 12mMultiple Airlines
Sun 10/510:00 amOPO - PWM
3 stops28h 24mMultiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,210
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:06 pmPWM - OPO
3 stops18h 49mAir Canada
Sun 10/510:00 amOPO - PWM
3 stops28h 24mAir Canada
Deal found 4/29![Air Canada logo]()
$1,404
Cheapflights Fare Finder
Customize your flight search to find flights from Portland to Porto 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 April 29, 2025.
Use the filters below to find and compare flights from Portland to Porto that are best for you.
Fly from
Portland
Fly to
Porto
Route
Depart
Return
Price
PortlandPorto
PWM - OPO
PWMOPO
Portland
Fri 9/19
7:30 am-3:50 pm
2 stops27h 20m
Porto
Sun 10/5
5:10 pm-1:16 pm
2 stops49h 06m
$920
PortlandPorto
PWM - OPO
PWMOPO
Portland
Fri 9/19
3:06 pm-6:50 am
1 stop10h 44m
Porto
Sun 10/5
6:00 am-2:32 pm
2 stops37h 32m
$988
PortlandPorto
PWM - OPO
PWMOPO
Portland
Fri 9/19
6:23 pm-9:35 am
2 stops34h 12m
Porto
Sun 10/5
10:00 am-9:24 am
3 stops28h 24m
$1,210
PortlandPorto
PWM - OPO
PWMOPO
Portland
Fri 9/19
3:06 pm-2:55 pm
3 stops18h 49m
Porto
Sun 10/5
10:00 am-9:24 am
3 stops28h 24m
$1,404
- Most accurate provider: When it comes to deals on Portland, Maine-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland, Maine-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Portland to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto 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 Porto
What is the cheapest month to book a flight from Portland, Maine to Porto?
Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Porto (average of $523). Flying from Portland, Maine to Porto in June is currently the most expensive (average of $1,071). 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 PWM to OPO?
Find hourly flight availability from Portland to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.
When flying from Portland, Maine to Porto, 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 Porto by month
Plan your trip to Porto by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.
Temperature in Porto by month
Plan your trip to Porto by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated April 29, 2025.
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Food
6.6
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Related info for your journey
Find useful and relevant information for your journey from Portland to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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