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Cheap flights from Porto to London from £45

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LON
20 Aug — 27 Aug1
1 adult

Cheapflights Tip: The best prices from Porto to London are usually found in February or March, booked 81 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from Porto to London

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to London (LON). 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

£66

One-way from

£45

Popular in

August

Cheapest in

February

Average price

£164

Good round-trip deal

£40 or less

Good one-way deal

£70 or less
Ryanair
  • Ryanair
  • 2/10-5/10
  • Nonstop
  • 4h 50m total
  • Porto to London
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Ryanair
  • Ryanair
  • 3/10
  • Nonstop
  • 2h 25m total
  • Porto to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Porto to London (LON).
Search Deals
Price to beat on a one-way flight from Porto to London (LON).
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Find flight deals from Porto to London

Cheapest flights from Porto to London
Explore the most affordable flight options available from Porto to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Thu 2/1009:15OPO - STN
Nonstop2h 25mRyanair
Sun 5/1008:45STN - OPO
Nonstop2h 25mRyanair
Deal found 14/8£66
Tue 11/1119:40OPO - STN
Nonstop2h 25mRyanair
Sat 15/1108:35STN - OPO
Nonstop2h 25mRyanair
Deal found 13/8£68
Thu 16/1006:40OPO - LGW
Nonstop2h 20measyJet
Mon 20/1009:50LGW - OPO
Nonstop2h 20measyJet
Deal found 13/8£68
Thu 9/1021:35OPO - STN
Nonstop2h 24mRyanair
Sun 12/1008:45STN - OPO
Nonstop2h 25mRyanair
Deal found 14/8£69
Thu 2/1006:40OPO - LGW
Nonstop2h 20measyJet
Sun 5/1012:40LGW - OPO
Nonstop2h 30measyJet
Deal found 13/8£69
Thu 4/1210:15OPO - LTN
Nonstop2h 25measyJet
Sun 7/1213:15LTN - OPO
Nonstop2h 25measyJet
Deal found 13/8£71
Sat 11/1006:55OPO - LGW
Nonstop2h 25measyJet
Mon 13/1006:10LGW - OPO
Nonstop2h 25measyJet
Deal found 14/8£72
Thu 4/1212:35OPO - LGW
Nonstop2h 20measyJet
Sun 7/1218:05LGW - OPO
Nonstop2h 35measyJet
Deal found 13/8£72
Sat 20/921:50OPO - STN
Nonstop2h 25mRyanair
Wed 1/1006:35STN - OPO
Nonstop2h 25mRyanair
Deal found 13/8£73
Mon 17/1117:45OPO - STN
Nonstop2h 25mRyanair
Thu 20/1109:00STN - OPO
Nonstop2h 25mRyanair
Deal found 14/8£74
Wed 15/1009:20OPO - LTN
Nonstop2h 25measyJet
Fri 17/1006:30LTN - OPO
Nonstop2h 25measyJet
Deal found 14/8£74
Sat 11/1021:50OPO - STN
Nonstop2h 25mRyanair
Mon 13/1006:30STN - OPO
Nonstop2h 20mRyanair
Deal found 13/8£75

Cheapflights Fare Finder

 
Customise your flight search to find flights from Porto to London 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 Porto to London that are best for you.

Fly from

Porto

Fly to

London

Route

Depart

Return

Price

PortoLondon

OPO - STN

OPOSTN

Porto

Fri 10/10

06:05-08:20

Nonstop2h 15m

London Stansted

Mon 13/10

06:30-08:50

Nonstop2h 20m

£66

PortoLondon

OPO - STN

OPOSTN

Porto

Thu 2/10

09:15-11:40

Nonstop2h 25m

London Stansted

Sun 5/10

08:45-11:10

Nonstop2h 25m

£66

PortoLondon

OPO - LGW

OPOLGW

Porto

Thu 23/10

06:40-09:00

Nonstop2h 20m

London Gatwick

Wed 29/10

09:25-11:55

Nonstop2h 30m

£68

PortoLondon

OPO - LGW

OPOLGW

Porto

Thu 16/10

06:40-09:00

Nonstop2h 20m

London Gatwick

Mon 20/10

09:50-12:10

Nonstop2h 20m

£68

PortoLondon

OPO - STN

OPOSTN

Porto

Tue 11/11

19:40-22:05

Nonstop2h 25m

London Stansted

Sat 15/11

08:35-11:00

Nonstop2h 25m

£68

PortoLondon

OPO - STN

OPOSTN

Porto

Thu 9/10

21:35-23:59

Nonstop2h 24m

London Stansted

Sun 12/10

08:45-11:10

Nonstop2h 25m

£69

PortoLondon

OPO - LGW

OPOLGW

Porto

Thu 2/10

06:40-09:00

Nonstop2h 20m

London Gatwick

Sun 5/10

12:40-15:10

Nonstop2h 30m

£69

PortoLondon

OPO - LTN

OPOLTN

Porto

Thu 4/12

10:15-12:40

Nonstop2h 25m

London Luton

Sun 7/12

13:15-15:40

Nonstop2h 25m

£71

PortoLondon

OPO - LGW

OPOLGW

Porto

Sat 11/10

06:55-09:20

Nonstop2h 25m

London Gatwick

Mon 13/10

06:10-08:35

Nonstop2h 25m

£72

PortoLondon

OPO - LGW

OPOLGW

Porto

Thu 4/12

12:35-14:55

Nonstop2h 20m

London Gatwick

Sun 7/12

18:05-20:40

Nonstop2h 35m

£72

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 60 results
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Best time to book a flight from Porto to London

Have a flexible travel schedule? Discover the best time to fly to London from Porto 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 Porto to London

How far ahead should I book a flight from Porto to London?

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

To ensure you get the cheapest price possible for a flight from Porto to London, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Porto to London?

Currently, January is the cheapest month in which you can book a flight from Porto to London (average of £112). Flying from Porto to London in August is currently the most expensive (average of £164). 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 OPO to LON?

Find hourly flight availability from Porto to London. 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.

It’s optimal to fly from Porto to London at midday. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly return from Porto to London. Price data was last updated on 1 December 2024.

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

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 15 August 2025.
Check out reviews from past customers who have flown with TAP AIR PORTUGAL, easyJet, andRyanair from Porto to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
Check prices

Entertainment

6.3

Overall

7.1

Comfort

7.1

Crew

7.8

Boarding

7.0

Food

6.2

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
Check prices

Entertainment

6.3

Overall

7.1

Comfort

7.1

Crew

7.8

Boarding

7.0

Food

6.2

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.
easyJet
6.9
Okay
1,821 reviews
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
Check prices

Entertainment

6.3

Overall

7.1

Comfort

7.1

Crew

7.8

Boarding

7.0

Food

6.2

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.
Ryanair
6.8
Okay
5,153 reviews
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
Check prices

Entertainment

6.3

Overall

7.1

Comfort

7.1

Crew

7.8

Boarding

7.0

Food

6.2

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.
British Airways
6.7
Okay
7,267 reviews
TAP AIR PORTUGAL
7.1
Good
1,948 reviews
Check prices

Entertainment

6.3

Overall

7.1

Comfort

7.1

Crew

7.8

Boarding

7.0

Food

6.2

Reviews

1 / 20
6.0
Good

Delsy,Aug 2025

LIS - MIA

Boarding was a hassle. When I asked if my flight class had been assigned, the staff treated me poorly. The seats were small and very hard, and the temperature was extremely hot for about half of the flight. The food was good, but there wasn't enough chicken for the entire plane, so I only received pasta with no other options. The flight attendants were not friendly at all. Overall, for a group of 24 people, it was a very unpleasant experience.

Related info for your journey

Find useful and relevant information for your journey from Porto to London. 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 from for flights from Porto to London?

    For a flight from Porto to London, you will be flying from Porto. Porto (OPO) is just 6.8 mi from the center of the city. Porto is the only Porto airport and it handles 4 outbound flights to London per day. 4 airlines have flights to London from Porto on a regular basis.

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

    Our cheapest airline available from Porto to London is Ryanair. Our recent data shows that you can find tickets from as low as £47 on this airline. Additional options worth looking into are easyJet and TAP AIR PORTUGAL, starting at £48 and £85 round-trip. You may be able to fly from Porto to London for 54% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Porto to London one-way?

    £45 is the cheapest one-way deal found within the past few days, from Ryanair. You may also be able to find cheap deals on British Airways and easyJet, with prices starting from £46 and £46, respectively.

  • What are the most popular routes from Porto to London?

    Most travelers choose Porto - London Gatwick, Porto - London Heathrow or Porto - London Stansted when deciding on the best route from Porto to London.

  • Can I find deals for flights from Porto to London that include hotel bookings?

    Yes. In addition to deals on Porto to London flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Porto to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to London.

  • Can I find deals for business class flights from Porto to London?

    Yes. Cheapflights offers flight deals from Porto to London 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 Porto to London?

    Currently, January is the cheapest month in which you can book a flight from Porto to London (average of £112). Flying from Porto to London in August is currently the most expensive (average of £164). 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

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Alternative routes for Porto to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Porto to London

Discover the top 4 airlines that operate flights from Porto to London. 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
RyanairCheapest£47Average£124FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£48Average£132FlexibilityNo cancel feeOn-time86%
Search easyJet flights
TAP AIR PORTUGALCheapest£85Average£183FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£96Average£189FlexibilityNo cancel feeOn-time70%
Search British Airways 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 Porto to London?

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 London from Porto today with Cheapflights!

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

Cheapflights helps you find that perfect flight to London from Porto 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 Porto to London with no change fees?

Yes, we can. To see specific flights from Porto to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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

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