Cheap flights from London, ON to Porto from C$ 1,105
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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from London to Porto
Discover tips and strategies to find the most affordable flight options for your journey from London (YXU) 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 12 June 2025.
Find flight deals from London to Porto
Cheapest flights from London to PortoExplore the most affordable flight options available from London to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Explore the most affordable flight options available from London to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from London 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 629,999 searches. Data last updated 12 June 2025.
Use the filters below to find and compare flights from London to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonPorto
YXU - OPO
YXUOPO
London
Tue 16/9
6:15 a.m.-9:45 a.m.
2 stops22h 30m
Porto
Sun 28/9
6:15 a.m.-9:17 a.m.
2 stops32h 02m
LondonPorto
YXU - OPO
YXUOPO
London
Tue 16/9
3:35 p.m.-7:05 p.m.
3 stops22h 30m
Porto
Sun 28/9
11:20 a.m.-9:27 p.m.
2 stops15h 07m
LondonPorto
YXU - OPO
YXUOPO
London
Tue 16/9
3:35 p.m.-7:05 p.m.
3 stops22h 30m
Porto
Sun 28/9
2:35 p.m.-9:27 p.m.
3 stops35h 52m
Best time to book a flight from London to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from London with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London to Porto
What is the cheapest month to book a flight from London, Ontario to Porto?
Currently, January is the cheapest month in which you can book a flight from London, Ontario to Porto (average of C$ 483). Flying from London, Ontario to Porto in December is currently the most expensive (average of C$ 775). 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.
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 18.0 - 195.0 mm per month. December is typically the wettest month, when rainfall can reach 195.0 mm. July is typically the driest time to visit Porto when rainfall is around 18.0 mm.
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 20.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).
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 12 June 2025.
Overall
Entertainment
Food
Boarding
Comfort
Crew
Reviews
Madhukar,Nov 2024
ZRH - BOM
Overall
Entertainment
Food
Boarding
Comfort
Crew
Reviews
Madhukar,Nov 2024
ZRH - BOM
Overall
Entertainment
Food
Boarding
Comfort
Crew
Reviews
Madhukar,Nov 2024
ZRH - BOM
Related info for your journey
Find useful and relevant information for your journey from London 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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Alternative routes for London to Porto
See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from London to Porto?
Cheapflights helps you search for flights from London to Porto via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from London to Porto?
Cheapflights simply makes it quick and affordable to book flights from London to Porto by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from London to Porto with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Porto, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from London to Porto become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!