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Cheap flights from Porto to London from $81

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LON
15 Jul — 22 Jul1
1 adult

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 10 July 2025.

Round-trip from

$155

One-way from

$81

Popular in

July

Cheapest in

February

Average price

$309

Good one-way deal

$132 or less
Ryanair
  • Ryanair
  • 25/9-30/9
  • Nonstop
  • 4h 49m total
  • Porto to London
easyJet
  • easyJet
  • 30/7
  • Nonstop
  • 2h 25m total
  • Porto to London
Highest demand for flights based on searches. 24% potential increase in price ($106 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average return price).
Average for round-trip flights in July 2025
Price to beat on a one-way flight from Porto to London (LON).

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 10 July 2025.

Thu 25/921:35OPO - STN
Nonstop2h 24mRyanair
Tue 30/906:50STN - OPO
Nonstop2h 25mRyanair
Deal found 8/7$155
Sat 11/1006:55OPO - LGW
Nonstop2h 25measyJet
Mon 13/1006:10LGW - OPO
Nonstop2h 25measyJet
Deal found 9/7$162
Wed 19/1119:20OPO - LTN
1 stop16h 20measyJet
Sun 23/1113:15LTN - OPO
Nonstop2h 25measyJet
Deal found 9/7$185
Mon 1/1221:55OPO - LGW
1 stop17h 30mVueling
Wed 31/1217:50LGW - OPO
1 stop14h 20mVueling
Deal found 9/7$213
Fri 5/1218:05OPO - LGW
Nonstop2h 20mBritish Airways
Mon 8/1214:15LGW - OPO
Nonstop2h 25mBritish Airways
Deal found 8/7$230
Fri 1/806:35OPO - LGW
Nonstop2h 25mMultiple Airlines
Tue 26/817:30LGW - OPO
Nonstop2h 20mMultiple Airlines
Deal found 9/7$231
Tue 30/922:00OPO - LHR
1 stop11h 10mVueling
Tue 7/1020:50LHR - OPO
1 stop11h 10mVueling
Deal found 9/7$263
Sat 6/909:15OPO - STN
Nonstop2h 25mMultiple Airlines
Sun 7/906:40STN - OPO
Nonstop2h 25mMultiple Airlines
Deal found 9/7$266
Sun 16/1106:00OPO - LGW
Nonstop2h 20mTAP AIR PORTUGAL
Sun 16/1121:25LGW - OPO
Nonstop2h 25mTAP AIR PORTUGAL
Deal found 10/7$291
Fri 1/822:40OPO - LTN
1 stop15h 05mRyanair
Tue 26/818:25LTN - OPO
1 stop15h 25mRyanair
Deal found 9/7$312
Tue 11/1120:10OPO - LGW
1 stop12h 50mAir Europa
Sat 15/1117:25LGW - OPO
1 stop13h 25mAir Europa
Deal found 9/7$320
Sat 20/915:45OPO - LHR
1 stop6h 15mTAP AIR PORTUGAL
Wed 1/1008:00LHR - OPO
1 stop6h 05mTAP AIR PORTUGAL
Deal found 9/7$367

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 647,157 searches. Data last updated 10 July 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

Thu 25/9

21:35-23:59

Nonstop2h 24m

London Stansted

Tue 30/9

06:50-09:15

Nonstop2h 25m

$155

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

$162

PortoLondon

OPO - LTN

OPOLTN

Porto

Wed 19/11

19:20-11:40

1 stop16h 20m

London Luton

Sun 23/11

13:15-15:40

Nonstop2h 25m

$185

PortoLondon

OPO - LGW

OPOLGW

Porto

Mon 1/12

21:55-15:25

1 stop17h 30m

London Gatwick

Wed 31/12

17:50-08:10

1 stop14h 20m

$213

PortoLondon

OPO - LGW

OPOLGW

Porto

Fri 5/12

18:05-20:25

Nonstop2h 20m

London Gatwick

Mon 8/12

14:15-16:40

Nonstop2h 25m

$230

PortoLondon

OPO - LGW

OPOLGW

Porto

Fri 1/8

06:35-09:00

Nonstop2h 25m

London Gatwick

Tue 26/8

17:30-19:50

Nonstop2h 20m

$231

PortoLondon

OPO - LHR

OPOLHR

Porto

Tue 30/9

22:00-09:10

1 stop11h 10m

London Heathrow

Tue 7/10

20:50-08:00

1 stop11h 10m

$263

PortoLondon

OPO - STN

OPOSTN

Porto

Sat 6/9

09:15-11:40

Nonstop2h 25m

London Stansted

Sun 7/9

06:40-09:05

Nonstop2h 25m

$266

PortoLondon

OPO - LGW

OPOLGW

Porto

Sun 16/11

06:00-08:20

Nonstop2h 20m

London Gatwick

Sun 16/11

21:25-23:50

Nonstop2h 25m

$291

PortoLondon

OPO - LTN

OPOLTN

Porto

Fri 1/8

22:40-13:45

1 stop15h 05m

London Luton

Tue 26/8

18:25-09:50

1 stop15h 25m

$312

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 50 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 27 June 2025.

The best time to book flights from Porto to London is 78 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 Porto to London?

Currently, October is the cheapest month in which you can book a flight from Porto to London (average of $1,037). Flying from Porto to London in December is currently the most expensive (average of $1,667). 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 10 July 2025.

When flying from Porto to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Porto to London

Explore weekly flight availability from Porto to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 10 July 2025.

The most flights from OPO to LON are scheduled on a Wednesday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

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 10 July 2025.
See what other customers who have flown with KLM, SWISS, andScandinavian Airlines from Porto to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.8

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Overall

7.8

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,June 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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?

    Porto (OPO), located 10.9 km from the city centre, is the airport you fly out of when you book flights from Porto to London. 0 airlines have flights from Porto to London on a regular basis. Booking flights from Porto to London should not be difficult; the airport handles an average of 6 outbound flights to London per day.

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

    Flying on Ryanair is currently your cheapest option to London, with prices starting at $155. Additional round-trip tickets that might be worth considering are offered by easyJet and Vueling, with the lowest prices starting at $162 and $213, respectively. You may be able to fly from Porto to London for 27% less than the average price by searching for these airlines.

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

    For one-way options, check prices for easyJet. According to our data, you can fly for as low as $81. Users have also found prices from $86 and $87 on Vueling and Ryanair, respectively.

  • What are the most popular routes 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, October is the cheapest month in which you can book a flight from Porto to London (average of $1,037). Flying from Porto to London in December is currently the most expensive (average of $1,667). 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
Hounslow
Southall
Chatham
Dover
Dorking
Canterbury
Chertsey

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Porto to London flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Porto to London 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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