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Cheap flights from Portugal to London from £37

LIS — LON
24 Sep — 1 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portugal to London

Enter your travel dates to find the best prices.

Cheapest flights from Portugal to London

Fri 11/921:30 -
Nonstop2h 25m
Tue 15/921:15 -
Nonstop2h 25m
Deal found 24/8£64
Tue 17/1112:35 -
Nonstop2h 25m
Tue 24/1109:30 -
Nonstop2h 30m
Deal found 23/8£64
Wed 18/1111:05 -
Nonstop2h 25m
Fri 20/1120:35 -
Nonstop2h 25m
Deal found 24/8£65
Sun 15/1121:15 -
Nonstop2h 20m
Tue 17/1109:30 -
Nonstop2h 30m
Deal found 24/8£65
Sat 21/1116:00 -
Nonstop2h 25m
Sat 28/1112:40 -
Nonstop2h 25m
Deal found 24/8£65
Fri 23/1006:35 -
Nonstop2h 25m
Sat 31/1006:30 -
Nonstop2h 30m
Deal found 24/8£65
Sat 21/1117:55 -
Nonstop2h 25m
Thu 26/1112:30 -
Nonstop2h 25m
Deal found 24/8£66
Fri 23/1006:35 -
Nonstop2h 25m
Mon 26/1007:00 -
Nonstop2h 30m
Deal found 24/8£66
Wed 16/915:40 -
Nonstop2h 25m
Sun 27/908:45 -
Nonstop2h 25m
Deal found 21/8£67
Thu 15/1006:40 -
Nonstop2h 25m
Sat 31/1006:30 -
Nonstop2h 30m
Deal found 24/8£67
Sat 17/1021:50 -
Nonstop2h 25m
Mon 19/1009:05 -
Nonstop2h 25m
Deal found 21/8£67
Fri 16/1006:35 -
Nonstop2h 25m
Mon 19/1006:10 -
Nonstop2h 25m
Deal found 23/8£67

Find flight deals from Portugal to London

Round-trip from

£64

One-way from

£37

Popular in

August

Cheapest in

November

Average price

£112

Good round-trip deal

£49 or less

Good one-way deal

£45 or less
Ryanair
  • Ryanair
  • 13/10-19/10
  • Nonstop
  • 4h 50m total
  • Portugal to London
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Ryanair
  • Ryanair
  • 23/9
  • Nonstop
  • 2h 25m total
  • Portugal to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from Portugal to London (LON).
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Price to beat on a one-way flight from Portugal to London (LON).
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoLondon

OPO Porto - LGW London Gatwick

OPOLGW

Porto

Fri 23/10

06:35-09:00

Nonstop2h 25m

London Gatwick

Sat 31/10

06:30-09:00

Nonstop2h 30m

£65

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Thu 19/11

15:20-17:45

Nonstop2h 25m

London Stansted

Sat 21/11

12:40-15:05

Nonstop2h 25m

£67

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Wed 16/9

17:45-20:10

Nonstop2h 25m

London Stansted

Thu 24/9

20:30-22:55

Nonstop2h 25m

£68

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Tue 13/10

20:30-22:55

Nonstop2h 25m

London Stansted

Fri 16/10

17:10-19:35

Nonstop2h 25m

£69

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Fri 25/9

21:30-23:55

Nonstop2h 25m

London Stansted

Mon 28/9

13:05-15:25

Nonstop2h 20m

£70

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

£78

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Mon 5/10

06:15-08:40

Nonstop2h 25m

London Stansted

Thu 8/10

20:30-22:55

Nonstop2h 25m

£79

PortoLondon

OPO Porto - STN London Stansted

OPOSTN

Porto

Thu 8/10

21:25-23:50

Nonstop2h 25m

London Stansted

Mon 12/10

09:05-11:30

Nonstop2h 25m

£79

LisbonLondon

LIS Lisbon Humberto Delgado - LTN London Luton

LISLTN

Lisbon Humberto Delgado

Sat 5/12

19:35-22:20

Nonstop2h 45m

London Luton

Tue 8/12

07:20-10:20

Nonstop3h 00m

£83

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

£83

Flights are sorted by cheapest return flights first.

Deals found on 24/8

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Portugal to London

Have a flexible travel schedule? Discover the best time to fly to London from Portugal with our price prediction graph.
Estimated return price

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Portugal to London (average of £89). Flying from Portugal to London in July is currently the most expensive (average of £169). 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 PT to LON?

It’s typically best to fly out from Portugal to London in the evening. Doing so could potentially save you 39% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Portugal to London

The most flights from PT0 to LON are scheduled on a Sunday (86 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (37 on average).

How often are flights from Portugal to London delayed?

About 22% of weekly flights between Portugal and London have experienced delays in the past year, with the average delay time being 117 minutes.

What is the most punctual flight time for Portugal 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 Thursday has historically faced a higher average of delays compared to other days of the week.

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

Over the past year, British Airways 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 Portugal to London?

The price you pay for your flight from Portugal to London may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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

Reviews of airlines servicing London

Read reviews from past customers who have flown with TAP AIR PORTUGAL,Ryanair, andeasyJet from Portugal to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
TAP AIR PORTUGAL
7.2
Good
2,374 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.0

Comfort

7.1

Entertainment

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.
TAP AIR PORTUGAL
7.2
Good
2,374 reviews
TAP AIR PORTUGAL
7.2
Good
2,374 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.0

Comfort

7.1

Entertainment

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.
Ryanair
6.9
Okay
5,480 reviews
TAP AIR PORTUGAL
7.2
Good
2,374 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.0

Comfort

7.1

Entertainment

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.
easyJet
6.9
Okay
1,928 reviews
TAP AIR PORTUGAL
7.2
Good
2,374 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.0

Comfort

7.1

Entertainment

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.
British Airways
6.7
Okay
8,188 reviews
TAP AIR PORTUGAL
7.2
Good
2,374 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.0

Comfort

7.1

Entertainment

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.
Wizz Air
6.2
Okay
172 reviews
TAP AIR PORTUGAL
7.2
Good
2,374 reviews
Check prices

Crew

7.8

Food

6.3

Boarding

7.0

Comfort

7.1

Entertainment

6.4

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

LIS - ORD

The check in process at the Lisbon Airport was terrible. The TAP staff was incompetent and directed us incorrectly.

Related info for your journey

  • How long is the flight from Portugal to London?

    Airlines like easyJet, Ryanair, and Vueling fly from Portugal to London in about 2h 25m. The time it takes to get you to your destination can typically vary by up to 8h 45m. Airlines will cover a distance of 794 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    The cheapet airlines for a one-way flight from Portugal to London are Ryanair (£13), Wizz Air (£14), and easyJet (£26).

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

    The most popular flight routes from Portugal to London are Lisbon Humberto Delgado - London Heathrow, Porto - London Gatwick and Lisbon Humberto Delgado - London Luton.

  • What are the most reliable airlines from Portugal to London?

    Consider Alaska Airlines (88%), Finnair (80%) or Air Canada (76%) when booking your flight. These represent the most reliable airlines when flying from Portugal to London.

  • What are the cheapest flights from Portugal to London?

    On average you can expect to pay £859 for a flight from Portugal to London. The cheapest flight overall is £76 while the most popular route, (Lisbon Humberto Delgado - London Heathrow) is currently priced at £116.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Portugal to London (average of £89). Flying from Portugal to London in July is currently the most expensive (average of £169). 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 London?

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Alternative routes for Portugal to London

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Top 5 airlines flying from Portugal to London

AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£24Average£120FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Wizz AirCheapest£33Average£163FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
RyanairCheapest£37Average£108FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
British AirwaysCheapest£57Average£167FlexibilityNo cancel feeOn-time70%
Search British Airways flights
TAP AIR PORTUGALCheapest£94Average£187FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights

Fly with Cheapflights

How does Cheapflights help users find flights from Portugal 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 Portugal today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Portugal to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portugal to London, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Portugal 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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