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Cheap flights from London Heathrow Airport to Porto from £53

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
17 Sep — 24 Sep1
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 18 August 2026.

Mon 28/920:50 -
1 stop11h 10m
Tue 29/920:15 -
1 stop18h 30m
Deal found 13/8£116
Sat 28/1119:40 -
1 stop12h 00m
Tue 1/1220:40 -
1 stop19h 55m
Deal found 17/8£117
Thu 15/1020:50 -
1 stop11h 10m
Thu 22/1020:40 -
1 stop18h 05m
Deal found 15/8£119
Thu 17/920:50 -
1 stop10h 05m
Mon 21/922:40 -
1 stop10h 30m
Deal found 15/8£120
Tue 17/1111:25 -
1 stop8h 35m
Tue 1/1220:40 -
1 stop19h 55m
Deal found 16/8£122
Wed 4/1109:55 -
1 stop11h 20m
Sat 7/1121:55 -
1 stop11h 15m
Deal found 15/8£126
Fri 25/920:50 -
1 stop10h 00m
Tue 29/922:00 -
1 stop11h 10m
Deal found 14/8£127
Mon 2/1120:50 -
1 stop16h 20m
Thu 5/1121:55 -
1 stop11h 15m
Deal found 15/8£128
Tue 1/918:45 -
1 stop5h 55m
Tue 22/922:00 -
1 stop11h 10m
Deal found 14/8£130

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 18 August 2026.

Round-trip from

£116

One-way from

£53

Popular in

December

Cheapest in

January

Average price

£236
Vueling
  • Vueling
  • 28/9-29/9
  • 2 total stops
  • 29h 40m total
  • London to Porto
Search Deals
Vueling
  • Vueling
  • 31/10
  • 1 total stop
  • 11h 20m 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 (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 18 August 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 return flight

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Wed 16/9

07:00-13:45

1 stop6h 45m

Porto

Fri 18/9

08:40-16:25

1 stop7h 45m

£187

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Mon 16/11

06:00-13:30

1 stop7h 30m

Porto

Thu 19/11

12:00-17:30

1 stop5h 30m

£193

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Tue 1/9

06:00-11:25

1 stop5h 25m

Porto

Tue 1/9

18:15-08:15

1 stop14h 00m

£196
Fastest return journey

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Wed 2/9

11:20-17:10

1 stop5h 50m

Porto

Sun 13/9

05:05-10:20

1 stop5h 15m

£274

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Sat 12/9

14:40-19:20

2 stops28h 40m

Porto

Sat 19/9

05:00-12:40

2 stops31h 40m

£1,145

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Fri 13/11

14:15-22:30

2 stops32h 15m

Porto

Sun 15/11

05:00-20:20

2 stops39h 20m

£1,172

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Wed 30/9

14:40-22:15

2 stops31h 35m

Porto

Tue 6/10

11:35-20:30

2 stops32h 55m

£1,189

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Sun 20/9

14:40-22:15

2 stops31h 35m

Porto

Sun 27/9

11:35-20:30

2 stops32h 55m

£1,189

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Sat 3/10

14:40-19:20

2 stops28h 40m

Porto

Mon 5/10

11:35-12:40

2 stops25h 05m

£1,212

LondonPorto

LHR London Heathrow - OPO Porto

LHROPO

London Heathrow

Sun 13/9

22:10-22:15

2 stops24h 05m

Porto

Sun 20/9

11:35-20:30

2 stops32h 55m

£1,227

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 24 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 return 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 best time to book flights from London Heathrow Airport to Porto is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 £147). Flying from London Heathrow Airport to Porto in December is currently the most expensive (average of £281). 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 for a return flight 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 £214 and £271 in September.
The cheapest return price found within the last 5 days was £116 on Vueling (28 Sept–29 Sept).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated 18 August 2026.
Get a feel of what it's like to fly with KLM,Brussels Airlines, andTAP AIR PORTUGAL from London Heathrow Airport to Porto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,558 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,558 reviews
KLM
7.8
Good
1,558 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Brussels Airlines
7.3
Good
429 reviews
KLM
7.8
Good
1,558 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
TAP AIR PORTUGAL
7.2
Good
2,370 reviews
KLM
7.8
Good
1,558 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Iberia
7.0
Good
3,258 reviews
KLM
7.8
Good
1,558 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
easyJet
6.9
Okay
1,926 reviews
KLM
7.8
Good
1,558 reviews
Check prices

Crew

8.4

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Boarding

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

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?

    Most people fly into Porto (OPO) if they book a flight to Porto from London Heathrow. On average, Porto has 0 inbound flights from London Heathrow per day from 8 airlines. Porto is conveniently located just 6.8 mi from Porto’s city center.

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

    There are many flights that can get you from London Heathrow Airport to Porto in 6h 45m. Fly via SWISS, TAP AIR PORTUGAL, or SAUDIA to get the fastest option. Airlines will cover a distance of 806 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from London Heathrow Airport to Porto round-trip?

    Cheapflights users have booked flights from London Heathrow Airport to Porto round-trip from £39. Other airlines that can offer you cheap pricing are easyJet, from £62, and Vueling, from £127. Users have found that Ryanair is 80% cheaper than the other options available to this destination.

  • 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 holiday 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 £147). Flying from London Heathrow Airport to Porto in December is currently the most expensive (average of £281). 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
Guimarães
Santa Maria da Feira
Viseu
Chaves
Coimbra
Aveiro
Vila Nova de Gaia

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.

Top 8 airlines flying from Heathrow to Porto

Discover the top 8 airlines that operate flights from Heathrow to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 August 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£39Average£92FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£62Average£150FlexibilityNo cancel feeOn-time86%
Search easyJet flights
VuelingCheapest£127Average£170FlexibilityNo cancel feeOn-time88%
Search Vueling flights
LufthansaCheapest£132Average£265FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
TAP AIR PORTUGALCheapest£134Average£186FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£141Average£249FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£159Average£238FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Brussels AirlinesCheapest£192Average£304FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers 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?

Cheapflights makes it easy to find Heathrow to Porto flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to Porto.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Porto, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Heathrow to Porto flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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