Find flights
When to book
FAQs

Cheap flights from London Heathrow Airport to Porto from C$ 124

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
10 Jul — 17 Jul1
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
Explore the most affordable flight options available from Heathrow to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 June 2026.

Tue 15/98:50 p.m.
LHR
-
OPO
1 stop11h 10m
Vueling
Tue 22/910:00 p.m.
OPO
-
LHR
1 stop11h 10m
Vueling
Deal found 6/6C$ 254
Thu 17/98:50 p.m.
LHR
-
OPO
1 stop11h 10m
Vueling
Tue 22/910:00 p.m.
OPO
-
LHR
1 stop11h 10m
Vueling
Deal found 9/6C$ 255
Wed 1/78:50 p.m.
LHR
-
OPO
1 stop11h 10m
Vueling
Wed 22/710:00 p.m.
OPO
-
LHR
1 stop11h 10m
Vueling
Deal found 7/6C$ 294
Thu 26/119:55 a.m.
LHR
-
OPO
1 stop11h 20m
Vueling
Sun 29/112:35 p.m.
OPO
-
LHR
1 stop18h 35m
Vueling
Deal found 5/6C$ 305
Tue 21/78:50 p.m.
LHR
-
OPO
1 stop11h 10m
Vueling
Tue 28/78:15 p.m.
OPO
-
LHR
1 stop18h 30m
Vueling
Deal found 6/6C$ 319
Fri 17/78:50 p.m.
LHR
-
OPO
1 stop11h 10m
Vueling
Tue 21/710:00 p.m.
OPO
-
LHR
1 stop11h 10m
Vueling
Deal found 8/6C$ 325
Wed 17/62:45 p.m.
LHR
-
OPO
1 stop7h 30m
Multiple Airlines
Tue 30/66:15 a.m.
OPO
-
LHR
1 stop10h 20m
Multiple Airlines
Deal found 6/6C$ 330
Tue 21/78:50 p.m.
LHR
-
OPO
1 stop11h 10m
Vueling
Wed 22/710:00 p.m.
OPO
-
LHR
1 stop11h 10m
Vueling
Deal found 8/6C$ 339
Wed 1/79:55 a.m.
LHR
-
OPO
1 stop6h 40m
Vueling
Thu 9/71:45 p.m.
OPO
-
LHR
1 stop6h 20m
Vueling
Deal found 8/6C$ 343
Sat 27/65:10 p.m.
LHR
-
OPO
1 stop5h 05m
Multiple Airlines
Tue 30/64:25 p.m.
OPO
-
LHR
1 stop5h 00m
Multiple Airlines
Deal found 8/6C$ 346

Find flight deals from Heathrow to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 10 June 2026.

Round-trip from

C$ 254

One-way from

C$ 124

Popular in

December

Cheapest in

January

Average price

C$ 363
Vueling
  • Vueling
  • 15/9-22/9
  • 2 total stops
  • 22h 20m total
  • London to Porto
Search Deals
Vueling
  • Vueling
  • 7/10
  • 1 total stop
  • 11h 10m total
  • London to Porto
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow 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 10 June 2026.
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 - OPO

LHROPO

London Heathrow

Thu 8/10

6:45 p.m.-12:40 a.m.

1 stop5h 55m

Porto

Sun 11/10

7:05 a.m.-12:45 p.m.

1 stop5h 40m

C$ 406

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sun 2/8

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

1 stop11h 10m

Porto

Sat 8/8

10:00 p.m.-9:10 a.m.

1 stop11h 10m

C$ 455
Quickest round-trip

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 15/8

5:10 p.m.-10:15 p.m.

1 stop5h 05m

Porto

Mon 31/8

5:00 a.m.-10:45 a.m.

1 stop5h 45m

C$ 509

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sun 21/6

1:45 p.m.-8:25 p.m.

1 stop6h 40m

Porto

Fri 26/6

9:15 p.m.-10:20 a.m.

1 stop13h 05m

C$ 527

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 14/9

2:40 p.m.-10:15 p.m.

2 stops31h 35m

Porto

Mon 21/9

11:35 a.m.-12:40 p.m.

2 stops25h 05m

C$ 2,276

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 4/12

10:05 p.m.-10:30 p.m.

2 stops24h 25m

Porto

Sun 6/12

5:00 a.m.-8:20 p.m.

2 stops39h 20m

C$ 2,277

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sun 20/9

2:40 p.m.-10:15 p.m.

2 stops31h 35m

Porto

Sun 27/9

11:35 a.m.-8:30 p.m.

2 stops32h 55m

C$ 2,322

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 18/9

2:40 p.m.-3:25 p.m.

2 stops24h 45m

Porto

Mon 21/9

11:35 a.m.-12:40 p.m.

2 stops25h 05m

C$ 2,365

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 10/9

10:10 p.m.-7:20 p.m.

2 stops21h 10m

Porto

Mon 14/9

11:35 a.m.-12:40 p.m.

2 stops25h 05m

C$ 2,390

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 14/9

2:40 p.m.-10:15 p.m.

2 stops31h 35m

Porto

Sun 20/9

5:00 a.m.-12:40 p.m.

2 stops31h 40m

C$ 2,411

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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
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 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 61 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$ 277). Flying from London Heathrow Airport to Porto in December is currently the most expensive (average of C$ 556). 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?

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Porto. 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 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 5h 05m. There are 1297 km between London Heathrow Airport and Porto. Both multi-stop and direct flights can be found to your destination and back.

  • 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$ 277). Flying from London Heathrow Airport to Porto in December is currently the most expensive (average of C$ 556). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Porto

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Faro flights
Luton to Lisbon flights
Gatwick to Lisbon flights
Gatwick to Porto flights
Heathrow to Lisbon flights

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 Heathrow to Porto?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Porto from Heathrow today with Cheapflights!

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

Cheapflights helps you find that perfect flight to Porto from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Porto from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.