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Cheap flights from Porto to London Heathrow Airport

OPO — LHR
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Porto to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Heathrow (LHR). 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 28 October 2025.

Popular in

July

Cheapest in

February

Average price

C$ 420
Highest demand for flights based on searches. 23% potential increase in price (C$ 153 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease (C$ 40 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Best time to book a flight from Porto to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Porto 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 Porto to London Heathrow Airport

What is the cheapest month to book a flight from Porto to London Heathrow Airport?

Currently, December is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of C$ 108). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of C$ 304). 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 Porto to Heathrow. 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 from for flights from Porto to London Heathrow?

    Located just 10.9 km from the city centre, Porto is the airport most travellers will use when flying to London Heathrow from Porto. Booking flights from Porto (OPO) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Porto to Heathrow 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 Porto to London Heathrow Airport?

    Currently, December is the cheapest month in which you can book a flight from Porto to London Heathrow Airport (average of C$ 108). Flying from Porto to London Heathrow Airport in July is currently the most expensive (average of C$ 304). 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.

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Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bedford
Luton
Stratford-upon-Avon
Southall
Gatwick

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Alternative routes for Porto to Heathrow

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Fly with Cheapflights

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How does Cheapflights help users find flights from Porto to Heathrow?

When you search for this flight from Porto to Heathrow, 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 flight for you.

Why should you use Cheapflights to find cheap flight tickets from Porto to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Porto.

Can Cheapflights find flights from Porto to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Porto to Heathrow flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Porto to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Porto to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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