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Cheap flights from London Heathrow Airport to Porto from C$ 108

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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
17 May — 24 May1
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 17 April 2026.

Fri 8/53:30 p.m.
LHR
-
OPO
1 stop16h 20m
Vueling
Thu 14/58:40 p.m.
OPO
-
LHR
1 stop18h 05m
Vueling
Deal found 14/4C$ 225
Fri 8/53:30 p.m.
LHR
-
OPO
1 stop16h 20m
Vueling
Tue 19/58:15 p.m.
OPO
-
LHR
1 stop18h 30m
Vueling
Deal found 14/4C$ 267
Wed 6/55:10 p.m.
LHR
-
OPO
1 stop5h 05m
Multiple Airlines
Sat 9/55:55 a.m.
OPO
-
LHR
1 stop10h 40m
Multiple Airlines
Deal found 17/4C$ 321
Sun 20/911:20 a.m.
LHR
-
OPO
1 stop5h 40m
TAP AIR PORTUGAL
Sun 27/97:05 a.m.
OPO
-
LHR
1 stop5h 40m
TAP AIR PORTUGAL
Deal found 13/4C$ 346
Thu 17/96:45 p.m.
LHR
-
OPO
1 stop5h 55m
TAP AIR PORTUGAL
Mon 21/97:00 a.m.
OPO
-
LHR
1 stop5h 45m
TAP AIR PORTUGAL
Deal found 16/4C$ 348
Tue 29/911:20 a.m.
LHR
-
OPO
1 stop5h 40m
TAP AIR PORTUGAL
Sat 10/1012:00 p.m.
OPO
-
LHR
1 stop5h 45m
TAP AIR PORTUGAL
Deal found 14/4C$ 357
Sat 17/106:00 a.m.
LHR
-
OPO
1 stop8h 30m
TAP AIR PORTUGAL
Sun 18/104:00 p.m.
OPO
-
LHR
1 stop6h 00m
TAP AIR PORTUGAL
Deal found 16/4C$ 359
Wed 6/56:45 p.m.
LHR
-
OPO
1 stop5h 55m
TAP AIR PORTUGAL
Mon 18/57:00 a.m.
OPO
-
LHR
1 stop5h 45m
TAP AIR PORTUGAL
Deal found 13/4C$ 369
Fri 25/96:45 p.m.
LHR
-
OPO
1 stop5h 55m
TAP AIR PORTUGAL
Mon 28/94:00 p.m.
OPO
-
LHR
1 stop6h 55m
TAP AIR PORTUGAL
Deal found 16/4C$ 372
Tue 30/66:45 p.m.
LHR
-
OPO
1 stop5h 55m
TAP AIR PORTUGAL
Sun 26/710:00 a.m.
OPO
-
LHR
1 stop5h 35m
TAP AIR PORTUGAL
Deal found 14/4C$ 373

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 17 April 2026.

Round-trip from

C$ 225

One-way from

C$ 108

Popular in

May

Cheapest in

January

Average price

C$ 417
Vueling
  • Vueling
  • 8/5-14/5
  • 2 total stops
  • 34h 25m total
  • London to Porto
Search Deals
Vueling
  • Vueling
  • 31/5
  • 1 total stop
  • 24h 30m total
  • London to Porto
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 17 April 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

Mon 8/6

6:00 a.m.-3:00 p.m.

1 stop9h 00m

Porto

Tue 9/6

12:10 p.m.-6:50 p.m.

1 stop6h 40m

C$ 346

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 27/4

6:00 a.m.-12:40 a.m.

1 stop18h 40m

Porto

Tue 28/4

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

1 stop13h 05m

C$ 383

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 27/4

6:00 a.m.-12:40 a.m.

1 stop18h 40m

Porto

Sun 3/5

5:05 a.m.-10:20 a.m.

1 stop5h 15m

C$ 396
Quickest round-trip

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 7/5

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

1 stop5h 05m

Porto

Sat 16/5

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

1 stop5h 45m

C$ 438

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 8/5

8:45 a.m.-5:00 p.m.

1 stop8h 15m

Porto

Mon 11/5

10:50 a.m.-6:50 p.m.

1 stop8h 00m

C$ 883

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 28/4

6:00 a.m.-3:00 p.m.

1 stop9h 00m

Porto

Mon 4/5

5:05 a.m.-10:20 a.m.

1 stop5h 15m

C$ 890

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sun 31/5

8:00 p.m.-1:15 p.m.

2 stops17h 15m

Porto

Sun 7/6

10:00 p.m.-2:55 p.m.

2 stops16h 55m

C$ 926

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 15/5

11:30 a.m.-9:20 p.m.

2 stops9h 50m

Porto

Mon 18/5

8:35 a.m.-7:10 p.m.

2 stops10h 35m

C$ 1,166

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 14/7

10:50 a.m.-9:20 p.m.

2 stops10h 30m

Porto

Mon 20/7

8:35 a.m.-7:10 p.m.

2 stops10h 35m

C$ 1,182

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 23/5

7:10 p.m.-1:15 p.m.

2 stops18h 05m

Porto

Mon 25/5

8:35 a.m.-7:10 p.m.

2 stops10h 35m

C$ 1,270

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/4

Showing 1-10 of 19 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
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?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Porto. Price data was last updated on 10 April 2026.

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 32 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$ 273). Flying from London Heathrow Airport to Porto in May is currently the most expensive (average of C$ 524). 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 55m. 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$ 273). Flying from London Heathrow Airport to Porto in May is currently the most expensive (average of C$ 524). 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

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Alternative routes for Heathrow to Porto

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Fly with Cheapflights

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

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

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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.

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