Cheap flights from London Heathrow Airport to Porto from £61

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
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Porto are usually found in January or November, booked 32 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap 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 15 August 2025.

Round-trip from

£119

One-way from

£61

Popular in

August

Cheapest in

January

Average price

£273
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 8/1-15/1
  • 2 total stops
  • 10h 30m total
  • London to Porto
Vueling
  • Vueling
  • 7/10
  • 1 total stop
  • 11h 10m total
  • London to Porto
Highest demand for flights based on searches. 15% potential increase in price (£26 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Heathrow to Porto

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 15 August 2025.

Thu 13/1115:15LHR - OPO
1 stop17h 05mVueling
Thu 27/1119:55OPO - LHR
1 stop18h 50mVueling
Deal found 14/8£132
Mon 3/1118:50LHR - OPO
1 stop13h 20mVueling
Wed 5/1121:55OPO - LHR
1 stop11h 15mVueling
Deal found 13/8£133
Thu 2/1020:50LHR - OPO
1 stop9h 55mMultiple Airlines
Tue 7/1006:00OPO - LHR
1 stop8h 15mMultiple Airlines
Deal found 14/8£139
Mon 10/1109:55LHR - OPO
1 stop11h 20mMultiple Airlines
Thu 13/1112:05OPO - LHR
1 stop9h 35mMultiple Airlines
Deal found 13/8£140
Mon 22/920:50LHR - OPO
1 stop11h 10mVueling
Tue 30/922:00OPO - LHR
1 stop11h 10mVueling
Deal found 14/8£141
Sat 27/919:50LHR - OPO
1 stop11h 40mMultiple Airlines
Tue 7/1022:00OPO - LHR
1 stop11h 10mMultiple Airlines
Deal found 13/8£142
Tue 7/1020:50LHR - OPO
1 stop11h 10mMultiple Airlines
Sun 12/1015:20OPO - LHR
1 stop6h 20mMultiple Airlines
Deal found 14/8£142
Wed 12/1109:55LHR - OPO
1 stop11h 20mMultiple Airlines
Wed 26/1111:35OPO - LHR
1 stop5h 40mMultiple Airlines
Deal found 13/8£143
Tue 23/920:50LHR - OPO
1 stop11h 10mVueling
Tue 30/922:00OPO - LHR
1 stop11h 10mVueling
Deal found 13/8£144
Thu 13/1109:55LHR - OPO
1 stop11h 20mMultiple Airlines
Thu 27/1107:00OPO - LHR
1 stop5h 40mMultiple Airlines
Deal found 14/8£145
Thu 9/1009:55LHR - OPO
1 stop11h 25mVueling
Mon 13/1022:00OPO - LHR
1 stop11h 10mVueling
Deal found 15/8£146

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 15 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Porto that are best for you.

Fly from

Heathrow

Fly to

Porto

Route

Depart

Return

Price

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 8/1

13:40-19:00

1 stop5h 20m

Porto

Thu 15/1

10:20-15:30

1 stop5h 10m

£119

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 11/11

18:50-08:10

1 stop13h 20m

Porto

Tue 25/11

21:55-09:10

1 stop11h 15m

£123

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 13/11

15:15-08:20

1 stop17h 05m

Porto

Thu 27/11

19:55-14:45

1 stop18h 50m

£132

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 3/11

18:50-08:10

1 stop13h 20m

Porto

Wed 5/11

21:55-09:10

1 stop11h 15m

£133

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 17/11

15:30-19:30

1 stop28h 00m

Porto

Tue 18/11

21:55-09:10

1 stop11h 15m

£134

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 9/2

18:50-08:10

1 stop13h 20m

Porto

Wed 11/2

21:55-09:10

1 stop11h 15m

£136

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 9/2

18:50-08:10

1 stop13h 20m

Porto

Wed 11/2

21:55-09:10

1 stop11h 15m

£137

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 2/10

20:50-06:45

1 stop9h 55m

Porto

Tue 7/10

06:00-14:15

1 stop8h 15m

£139

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 15/1

12:25-18:00

1 stop5h 35m

Porto

Sun 18/1

06:55-12:40

1 stop5h 45m

£141

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 23/9

20:50-08:00

1 stop11h 10m

Porto

Tue 30/9

22:00-09:10

1 stop11h 10m

£141

Flights are sorted by cheapest return flights first.

Deals found on 11/8

Showing 1-10 of 19 results
1
2

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?

Use this chart to determine the optimal time to book a return flight from Heathrow to Porto. Price data was last updated on 8 August 2025.

The best time to book flights from London Heathrow Airport to Porto is 32 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of £66). Flying from London Heathrow Airport to Porto in August is currently the most expensive (average of £258). 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.

What is the cheapest time of day to fly from LHR to OPO?

Find hourly flight availability from Heathrow to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 16% on flights from London Heathrow Airport to Porto by exploring options for tickets at midday.

What is the cheapest day to fly from London Heathrow Airport to Porto?

Use this chart to determine the cheapest time to fly return from Heathrow to Porto. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Porto flight should consider departing on Sunday at midday when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top stopover airport for flights from London Heathrow Airport to Porto?

Share of one-stop return flights from London Heathrow Airport to Porto chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Lisbon (LIS) – chosen by Cheapflights users on 42% of one-stop itineraries from London Heathrow Airport to Porto on Cheapflights.

What’s the cheapest stopover airport for flights from London Heathrow Airport to Porto?

Average return fare for one-stop flights from London Heathrow Airport to Porto, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Geneva (GVA) is the most affordable one-stop option, with an average return flight price of £163.

What’s the fastest stopover option from London Heathrow Airport to Porto?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Porto, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Brussels (BRU) have the shortest average one-way travel time for one-stop routes: 5h 24m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Porto?

Average stopover duration for one-stop one-way flights from London Heathrow Airport to Porto, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Munich (MUC) offer the fastest connection on this route, with an average stopover time of 1h 39m.

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 15 August 2025.
Get a feel of what it's like to fly with Brussels Airlines, TAP AIR PORTUGAL, andIberia 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.

Boarding

7.3

Entertainment

6.1

Overall

7.3

Comfort

6.9

Food

6.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2025

CLT - EWR

I thought it was really good. The employees were very helpful and caring. Although the plane was a little dirty, so it could use a good cleaning. Other than that, it was good.

Boarding

7.3

Entertainment

6.1

Overall

7.3

Comfort

6.9

Food

6.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2025

CLT - EWR

I thought it was really good. The employees were very helpful and caring. Although the plane was a little dirty, so it could use a good cleaning. Other than that, it was good.

Boarding

7.3

Entertainment

6.1

Overall

7.3

Comfort

6.9

Food

6.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2025

CLT - EWR

I thought it was really good. The employees were very helpful and caring. Although the plane was a little dirty, so it could use a good cleaning. Other than that, it was good.

Boarding

7.3

Entertainment

6.1

Overall

7.3

Comfort

6.9

Food

6.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2025

CLT - EWR

I thought it was really good. The employees were very helpful and caring. Although the plane was a little dirty, so it could use a good cleaning. Other than that, it was good.

Boarding

7.3

Entertainment

6.1

Overall

7.3

Comfort

6.9

Food

6.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2025

CLT - EWR

I thought it was really good. The employees were very helpful and caring. Although the plane was a little dirty, so it could use a good cleaning. Other than that, it was good.

Boarding

7.3

Entertainment

6.1

Overall

7.3

Comfort

6.9

Food

6.3

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2025

CLT - EWR

I thought it was really good. The employees were very helpful and caring. Although the plane was a little dirty, so it could use a good cleaning. Other than that, it was good.

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 10 airlines. Porto is conveniently located just 6.8 mi from Porto’s city center.

  • 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 £47. Other airlines that can offer you cheap pricing are Ryanair, from £62, and Vueling, from £94. Users have found that easyJet is 76% 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of £66). Flying from London Heathrow Airport to Porto in August is currently the most expensive (average of £258). 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
Coimbra
Viseu
Guimarães
Vila Nova de Gaia
Chaves
Aveiro

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Top 10 airlines flying from Heathrow to Porto

Discover the top 10 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 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£47Average£133FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£62Average£167FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
VuelingCheapest£94Average£161FlexibilityNo cancel feeOn-time88%
Search Vueling flights
British AirwaysCheapest£99Average£268FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapest£128Average£189FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
KLMCheapest£130Average£173FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£137Average£245FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£138Average£165FlexibilityNo cancel feeOn-time79%
Search SWISS flights
LufthansaCheapest£138Average£269FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£170Average£287FlexibilityNo 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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