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Cheap flights from London Heathrow Airport to Porto from C$ 91

LHR — OPO
11 Oct — 18 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Porto

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Porto

Sat 31/108:50 p.m. -
1 stop11h 20m
Sat 7/118:05 p.m. -
1 stop18h 40m
Deal found 10/9C$ 193
Mon 28/98:50 p.m. -
1 stop11h 10m
Tue 29/910:00 p.m. -
1 stop11h 10m
Deal found 10/9C$ 198
Tue 17/118:50 p.m. -
1 stop11h 20m
Sat 21/118:05 p.m. -
1 stop18h 40m
Deal found 9/9C$ 216
Tue 20/108:50 p.m. -
1 stop11h 10m
Thu 22/108:40 p.m. -
1 stop18h 05m
Deal found 10/9C$ 218
Fri 13/118:50 p.m. -
1 stop11h 20m
Mon 16/119:55 p.m. -
1 stop11h 15m
Deal found 10/9C$ 225
Sat 14/119:55 a.m. -
1 stop11h 20m
Sat 28/119:55 p.m. -
1 stop11h 15m
Deal found 7/9C$ 239
Mon 9/118:50 p.m. -
1 stop11h 20m
Wed 11/118:45 a.m. -
1 stop11h 20m
Deal found 9/9C$ 242
Sat 31/108:50 p.m. -
1 stop11h 20m
Mon 2/119:55 p.m. -
1 stop11h 15m
Deal found 6/9C$ 243

Find flight deals from Heathrow to Porto

Round-trip from

C$ 193

One-way from

C$ 91

Popular in

December

Cheapest in

January

Average price

C$ 381
Vueling
  • Vueling
  • 31/10-7/11
  • 2 total stops
  • 30h 00m total
  • London to Porto
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Vueling
  • Vueling
  • 31/12-31/12
  • 1 total stop
  • 11h 20m total
  • London to Porto
Search Deals
High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 4% potential price decrease (C$ 21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Wed 21/10

8:50 p.m.-8:00 a.m.

1 stop11h 10m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 115

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Tue 29/9

8:50 p.m.-8:00 a.m.

1 stop11h 10m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 123

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Sun 8/11

8:50 p.m.-8:10 a.m.

1 stop11h 20m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 137
Quickest round-trip

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Wed 30/9

9:55 a.m.-4:10 p.m.

1 stop6h 15m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 155

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Wed 16/9

3:00 p.m.-7:20 a.m.

1 stop16h 20m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 156

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Sun 18/10

9:55 a.m.-4:10 p.m.

1 stop6h 15m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 160

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Tue 8/12

3:15 p.m.-10:10 a.m.

1 stop18h 55m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 164

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Mon 21/9

3:00 p.m.-7:30 a.m.

1 stop16h 30m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 166

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Mon 21/9

8:50 p.m.-8:00 a.m.

1 stop11h 10m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 187

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Thu 24/12

7:55 p.m.-1:30 p.m.

1 stop17h 35m

Porto

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 278

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Heathrow with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Porto

How far ahead should I book a flight from London Heathrow Airport to Porto?

The price you pay for your flight from London Heathrow Airport to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of C$ 275). Flying from London Heathrow Airport to Porto in December is currently the most expensive (average of C$ 526). 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.

How much does it cost to fly round-trip from London Heathrow Airport to Porto?

Airfare is below average for this route at the moment.

London Heathrow Airport to Porto flights typically cost between C$ 323 and C$ 528 in October.
The cheapest round-trip price found within the last 5 days was C$ 193 on Vueling (31 Oct-7 Nov).

Related info for your journey

  • What airport do you fly into for flights to Porto from London Heathrow?

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

  • How long is the flight from London Heathrow Airport to Porto?

    Departing from London Heathrow Airport to Porto will take you 11h 10m. There are 1297 km between London Heathrow Airport and Porto.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of C$ 275). Flying from London Heathrow Airport to Porto in December is currently the most expensive (average of C$ 526). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Porto

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