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Cheap flights from Porto to London from $71

OPO — LON
23 Sep — 30 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Porto to London

Enter your travel dates to find the best prices.

Cheapest flights from Porto to London

Tue 13/1020:30 -
Nonstop2h 25m
Mon 19/1009:05 -
Nonstop2h 25m
Deal found 23/8$121
Wed 18/1111:05 -
Nonstop2h 25m
Fri 20/1120:35 -
Nonstop2h 25m
Deal found 21/8$123
Sun 29/1121:15 -
Nonstop2h 20m
Wed 2/1209:30 -
Nonstop2h 30m
Deal found 20/8$123
Mon 16/1115:45 -
Nonstop2h 20m
Fri 20/1117:10 -
Nonstop2h 30m
Deal found 23/8$123
Fri 23/1006:35 -
Nonstop2h 25m
Sat 31/1006:30 -
Nonstop2h 30m
Deal found 24/8$124
Fri 18/921:30 -
Nonstop2h 25m
Fri 25/917:10 -
Nonstop2h 25m
Deal found 21/8$125
Fri 23/1006:35 -
Nonstop2h 25m
Mon 26/1007:00 -
Nonstop2h 30m
Deal found 24/8$125
Fri 25/921:30 -
Nonstop2h 25m
Mon 28/913:05 -
Nonstop2h 20m
Deal found 19/8$127
Fri 20/1120:30 -
Nonstop2h 25m
Mon 23/1112:40 -
Nonstop2h 30m
Deal found 21/8$127
Sat 17/1021:50 -
Nonstop2h 25m
Mon 19/1009:05 -
Nonstop2h 25m
Deal found 21/8$128
Tue 13/1006:15 -
Nonstop2h 25m
Tue 20/1020:50 -
Nonstop2h 30m
Deal found 21/8$128
Thu 5/1111:35 -
Nonstop2h 25m
Sun 8/1116:50 -
Nonstop2h 30m
Deal found 20/8$128

Find flight deals from Porto to London

Round-trip from

$121

One-way from

$71

Popular in

August

Cheapest in

January

Average price

$273

Good one-way deal

$115 or less
Ryanair
  • Ryanair
  • 14/10-18/10
  • Nonstop
  • 4h 50m total
  • Porto to London
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easyJet
  • easyJet
  • 11/10
  • Nonstop
  • 2h 25m total
  • Porto to London
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Highest demand for flights based on searches. 10% potential increase in price ($35 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Price to beat on a one-way flight from Porto to London (LON).
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Porto to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Thu 3/12

11:35-14:00

Nonstop2h 25m

London Luton

Sun 6/12

16:50-19:20

Nonstop2h 30m

$138

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Fri 25/9

09:20-11:40

Nonstop2h 20m

London Luton

Mon 28/9

13:15-15:45

Nonstop2h 30m

$141

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Sat 17/10

09:10-11:35

Nonstop2h 25m

London Luton

Mon 19/10

13:15-15:45

Nonstop2h 30m

$142

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Fri 2/10

21:30-23:55

Nonstop2h 25m

London Stansted

Wed 7/10

20:35-23:00

Nonstop2h 25m

$149

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Thu 24/12

11:35-14:00

Nonstop2h 25m

London Luton

Fri 1/1

17:10-19:40

Nonstop2h 30m

$152

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Wed 16/9

17:45-20:10

Nonstop2h 25m

London Stansted

Wed 23/9

20:35-23:00

Nonstop2h 25m

$158

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Tue 22/9

20:30-22:55

Nonstop2h 25m

London Stansted

Wed 23/9

20:35-23:00

Nonstop2h 25m

$160

PortoLondon

OPO Porto - LGW London Gatwick

OPOLGW

Porto

Thu 3/12

12:35-15:00

Nonstop2h 25m

London Gatwick

Sun 6/12

14:40-17:05

Nonstop2h 25m

$160

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Fri 22/1

20:30-22:55

Nonstop2h 25m

London Luton

Sun 24/1

16:50-19:20

Nonstop2h 30m

$160

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Thu 5/11

11:35-14:00

Nonstop2h 25m

London Luton

Sun 8/11

16:20-06:45

1 stop14h 25m

$167

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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

Cheapflights Insights

Everything you need to know about your flight from Porto to London

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 $163). Flying from Porto to London in August is currently the most expensive (average of $286). 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?

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.

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

Airfare is below average for this route at the moment.
Porto to London flights typically cost between $178 and $307 in October.
The cheapest return price found within the last 5 days was $121 on Ryanair (13 Oct–19 Oct).

How often are flights from Porto to London delayed?

About 20% of weekly flights between Porto and London have experienced delays in the past year, with the average delay time being 125 minutes.

What is the most punctual flight time for Porto to London flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Porto to London flights?

Over the past year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 18% of flights being delayed.

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

The best time to book flights from Porto to London is 46 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.

Related info for your journey

  • 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 4 outbound flights to London per day.

  • How long is the flight from Porto to London?

    Airlines like easyJet, Ryanair, and Vueling fly from Porto to London in about 2h 25m. The time it takes to get you to your destination can typically vary by up to 8h 45m. There are 1278 km between Porto and London. This flight may include one or multiple stops.

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

    The most popular flight routes from Porto to London are Porto - London Luton, Porto - London Gatwick and Porto - London Stansted.

  • 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 $163). Flying from Porto to London in August is currently the most expensive (average of $286). 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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Horsham
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Gatwick
Uxbridge
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Twickenham
Orpington
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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.

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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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