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Cheap flights from Porto to London from $72

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LON
9 Sep — 16 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
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 August 2026.

Wed 23/907:00 -
Nonstop2h 25m
Sat 26/905:20 -
Nonstop2h 25m
Deal found 10/8$124
Sun 18/1006:35 -
Nonstop2h 25m
Mon 19/1006:10 -
Nonstop2h 25m
Deal found 10/8$126
Fri 11/921:30 -
Nonstop2h 25m
Mon 14/918:00 -
Nonstop2h 25m
Deal found 10/8$130
Sat 17/1021:50 -
Nonstop2h 25m
Sun 18/1008:45 -
Nonstop2h 25m
Deal found 9/8$132
Thu 24/906:40 -
Nonstop2h 25m
Tue 29/920:50 -
Nonstop2h 30m
Deal found 10/8$132
Wed 14/1009:20 -
Nonstop2h 25m
Mon 19/1013:15 -
Nonstop2h 30m
Deal found 9/8$132
Wed 18/1117:55 -
Nonstop2h 25m
Fri 20/1120:35 -
Nonstop2h 25m
Deal found 10/8$133
Thu 8/1006:40 -
Nonstop2h 25m
Mon 12/1006:10 -
Nonstop2h 25m
Deal found 10/8$133
Thu 19/1106:10 -
Nonstop2h 25m
Tue 24/1109:00 -
Nonstop2h 25m
Deal found 9/8$134
Thu 10/921:30 -
Nonstop2h 25m
Tue 15/921:15 -
Nonstop2h 25m
Deal found 5/8$136
Thu 22/1006:40 -
Nonstop2h 25m
Fri 23/1016:35 -
Nonstop2h 30m
Deal found 6/8$136
Thu 29/1006:10 -
Nonstop2h 25m
Sun 1/1114:35 -
Nonstop2h 25m
Deal found 10/8$137

Find 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 August 2026.

Round-trip from

$124

One-way from

$72

Popular in

August

Cheapest in

January

Average price

$281

Good one-way deal

$146 or less
easyJet
  • easyJet
  • 23/9-26/9
  • Nonstop
  • 4h 50m total
  • Porto to London
Search Deals
easyJet
  • easyJet
  • 10/10
  • Nonstop
  • 2h 25m total
  • Porto to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($41 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a one-way flight from Porto to London (LON).
Search Deals

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 August 2026.
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 - STN London Stansted

OPOSTN

Porto

Wed 9/9

07:05-09:30

Nonstop2h 25m

London Stansted

Wed 16/9

20:35-23:00

Nonstop2h 25m

$144

PortoLondon

OPO Porto - LGW London Gatwick

OPOLGW

Porto

Sat 10/10

06:55-09:20

Nonstop2h 25m

London Gatwick

Tue 13/10

20:50-23:20

Nonstop2h 30m

$144

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Tue 6/10

20:30-22:55

Nonstop2h 25m

London Stansted

Sun 11/10

08:45-11:10

Nonstop2h 25m

$150

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Thu 21/1

11:35-14:00

Nonstop2h 25m

London Luton

Thu 28/1

08:15-10:45

Nonstop2h 30m

$165

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Tue 15/9

20:30-22:55

Nonstop2h 25m

London Stansted

Sat 26/9

19:00-21:25

Nonstop2h 25m

$167

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Fri 25/9

06:15-17:45

1 stop11h 30m

London Luton

Sun 27/9

13:00-15:30

Nonstop2h 30m

$171

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Mon 21/9

06:15-08:40

Nonstop2h 25m

London Stansted

Mon 28/9

18:00-20:25

Nonstop2h 25m

$171

PortoLondon

OPO Porto - LGW London Gatwick

OPOLGW

Porto

Thu 24/9

06:40-09:05

Nonstop2h 25m

London Gatwick

Thu 1/10

20:50-23:20

Nonstop2h 30m

$173

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Fri 4/9

06:15-08:40

Nonstop2h 25m

London Stansted

Sun 13/9

17:50-20:15

Nonstop2h 25m

$178

PortoLondon

OPO Porto - LTN London Luton

OPOLTN

Porto

Mon 12/10

06:45-16:25

1 stop9h 40m

London Luton

Mon 19/10

13:15-15:45

Nonstop2h 30m

$178

Flights are sorted by cheapest return flights first.

Deals found on 10/8

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
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

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 $167). Flying from Porto to London in August is currently the most expensive (average of $297). 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 August 2026.

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 $229 and $366 in September.
The cheapest return price found within the last 5 days was $124 on easyJet (23 Sept–26 Sept).

How often are flights from Porto to London delayed?

About 21% of weekly flights between Porto and London have experienced delays in the past year, with the average delay time being 123 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

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 5 outbound flights to London per day.

  • How long is the flight from Porto to London?

    Airlines like Ryanair, easyJet, 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 1362 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 $167). Flying from Porto to London in August is currently the most expensive (average of $297). 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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Deals for Porto to London flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Porto.

Can Cheapflights find flights from Porto to London with no change fees?

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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