Cheap flights from London Heathrow Airport to Porto from £54

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OPO
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

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

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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 28 October 2025.

Thu 11/1215:30LHR - OPO
1 stop4h 45mMultiple Airlines
Thu 18/1220:55OPO - LHR
1 stop17h 50mMultiple Airlines
Deal found 27/10£126
Sat 6/1209:55LHR - OPO
1 stop11h 20mMultiple Airlines
Tue 9/1213:45OPO - LHR
1 stop28h 10mMultiple Airlines
Deal found 27/10£135
Thu 13/1109:55LHR - OPO
1 stop7h 40mMultiple Airlines
Sat 15/1113:00OPO - LHR
1 stop7h 05mMultiple Airlines
Deal found 26/10£146
Tue 11/1108:15LHR - OPO
1 stop6h 45mTAP AIR PORTUGAL
Tue 18/1112:00OPO - LHR
1 stop5h 30mTAP AIR PORTUGAL
Deal found 26/10£148
Fri 31/1013:40LHR - OPO
1 stop8h 25mTAP AIR PORTUGAL
Sat 8/1113:00OPO - LHR
1 stop8h 35mTAP AIR PORTUGAL
Deal found 26/10£149
Sat 8/1106:00LHR - OPO
1 stop6h 10mTAP AIR PORTUGAL
Sat 15/1111:00OPO - LHR
1 stop6h 30mTAP AIR PORTUGAL
Deal found 26/10£149
Sat 1/1113:40LHR - OPO
1 stop5h 20mTAP AIR PORTUGAL
Sat 8/1112:00OPO - LHR
1 stop5h 30mTAP AIR PORTUGAL
Deal found 26/10£150
Sat 29/1114:05LHR - OPO
1 stop8h 15mKLM
Tue 2/1209:55OPO - LHR
1 stop7h 05mKLM
Deal found 27/10£151
Thu 13/1109:55LHR - OPO
1 stop7h 40mMultiple Airlines
Wed 19/1106:05OPO - LHR
1 stop11h 55mMultiple Airlines
Deal found 27/10£152
Sat 13/1220:50LHR - OPO
1 stop11h 20mMultiple Airlines
Mon 15/1216:10OPO - LHR
1 stop6h 30mMultiple Airlines
Deal found 26/10£154
Fri 5/1206:30LHR - OPO
1 stop6h 50mKLM
Mon 8/1216:10OPO - LHR
1 stop15h 30mKLM
Deal found 27/10£155
Thu 6/1113:40LHR - OPO
1 stop5h 20mTAP AIR PORTUGAL
Sun 9/1105:00OPO - LHR
1 stop6h 25mTAP AIR PORTUGAL
Deal found 26/10£156

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 28 October 2025.

Round-trip from

£125

One-way from

£54

Popular in

December

Cheapest in

January

Average price

£182
Vueling
  • Vueling
  • 26/1-9/2
  • 2 total stops
  • 19h 10m total
  • London to Porto
Vueling
  • Vueling
  • 21/1
  • 1 total stop
  • 28h 00m total
  • London to Porto
High demand for flights, 5% potential price rise
Cheapest flight prices on average. 3% potential price decrease (£7 potential savings vs. average return price).
Average for round-trip flights in October 2025

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 28 October 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

Mon 26/1

18:50-08:10

1 stop13h 20m

Porto

Mon 9/2

08:35-14:25

1 stop5h 50m

£125

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 16/1

06:30-13:20

1 stop6h 50m

Porto

Sun 18/1

05:00-10:45

1 stop5h 45m

£149

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 18/11

06:00-13:05

1 stop7h 05m

Porto

Tue 25/11

10:05-17:30

1 stop7h 25m

£149

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 20/3

06:00-18:00

1 stop12h 00m

Porto

Sun 22/3

16:00-21:35

1 stop5h 35m

£149

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Fri 23/1

10:00-15:25

1 stop5h 25m

Porto

Sun 25/1

05:00-10:45

1 stop5h 45m

£149

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 29/11

12:25-18:00

1 stop5h 35m

Porto

Tue 2/12

11:00-17:30

1 stop6h 30m

£149

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Tue 6/1

15:45-22:25

1 stop6h 40m

Porto

Mon 12/1

06:30-13:50

1 stop7h 20m

£149

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Thu 13/11

08:15-17:00

1 stop8h 45m

Porto

Sun 16/11

06:55-12:40

1 stop5h 45m

£150

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Sat 29/11

14:05-22:20

1 stop8h 15m

Porto

Tue 2/12

09:55-17:00

1 stop7h 05m

£151

LondonPorto

LHR - OPO

LHROPO

London Heathrow

Mon 26/1

09:55-18:05

2 stops8h 10m

Porto

Mon 9/2

11:35-18:15

1 stop6h 40m

£162

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 24 results
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2
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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 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 24 October 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of £68). Flying from London Heathrow Airport to Porto in August is currently the most expensive (average of £165). 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 28 October 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 15% 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.

How much does it cost for a return flight from London Heathrow Airport to Porto?

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 28 October 2025.
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.

Crew

8.4

Boarding

7.8

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Crew

8.4

Boarding

7.8

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Crew

8.4

Boarding

7.8

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Crew

8.4

Boarding

7.8

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Crew

8.4

Boarding

7.8

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Crew

8.4

Boarding

7.8

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.7

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

  • 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 50m. Fly via Vueling, KLM, or TAP AIR PORTUGAL 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 £62. Other airlines that can offer you cheap pricing are Ryanair, from £64, and Vueling, from £95. Users have found that easyJet is 70% 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Porto (average of £68). Flying from London Heathrow Airport to Porto in August is currently the most expensive (average of £165). 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
Guimarães
Chaves
Viseu
Vila Nova de Gaia
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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£62Average£151FlexibilityNo cancel feeOn-time86%
Search easyJet flights
RyanairCheapest£64Average£142FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
VuelingCheapest£95Average£212FlexibilityNo cancel feeOn-time88%
Search Vueling flights
British AirwaysCheapest£106Average£275FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£132Average£181FlexibilityNo cancel feeOn-time75%
Search KLM flights
TAP AIR PORTUGALCheapest£135Average£189FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IberiaCheapest£139Average£246FlexibilityNo cancel feeOn-time77%
Search Iberia flights
SWISSCheapest£140Average£262FlexibilityNo cancel feeOn-time79%
Search SWISS flights
LufthansaCheapest£141Average£306FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£173Average£292FlexibilityNo 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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