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Cheap flights from London, ON to Porto from C$ 477

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 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
YXU — OPO
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 873

One-way from

C$ 477
Air Canada
  • Air Canada
  • 20/2-24/2
  • 4 total stops
  • 53h 51m total
  • London to Porto
Search Deals
26/10
  • 26/10
  • 3 total stops
  • 45h 15m total
  • London to Porto
Search Deals

Find flight deals from London to Porto

Best flights from London to Porto
Discover carefully curated flight deals from London to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 11 September 2025.

Fri 20/25:40 p.m.YXU - OPO
2 stops16h 05mAir Canada
Tue 24/212:35 p.m.OPO - YXU
2 stops37h 46mAir Canada
Deal found 10/9C$ 873

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 11 September 2025.
Use the filters below to find and compare flights from London to Porto that are best for you.

Fly from

London

Fly to

Porto

Route

Depart

Return

Price

LondonPorto

YXU - OPO

YXUOPO

London

Fri 20/2

5:40 p.m.-2:45 p.m.

2 stops16h 05m

Porto

Tue 24/2

12:35 p.m.-9:21 p.m.

2 stops37h 46m

C$ 873

LondonPorto

YXU - OPO

YXUOPO

London

Sun 26/10

8:00 p.m.-9:15 p.m.

3 stops45h 15m

C$ 477

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

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.
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 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 July is currently the most expensive (average of C$ 792). 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.

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.

  • How long is the flight from London, Ontario to Porto?

    Departing from London, Ontario to Porto will take you 16h 05m. London, Ontario and Porto are separated by a distance of 5779 km.

  • Can I find deals for flights from London to Porto that include hotel bookings?

    Yes. In addition to deals on London to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Porto.

  • Can I find deals for business class flights from London to Porto?

    Yes. Cheapflights offers flight deals from London to Porto 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 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 July is currently the most expensive (average of C$ 792). 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 Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Esposende

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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!

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