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Cheap flights from Portugal 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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — LON
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Portugal to London

Keep the following information in mind while searching for Portugal to London flight deals. Data was last updated 19 August 2025.

Round-trip from

£66

One-way from

£45

Popular in

August

Cheapest in

March

Average price

£126

Good round-trip deal

£23 or less

Good one-way deal

£41 or less
Ryanair
  • Ryanair
  • 8/10-13/10
  • Nonstop
  • 4h 45m total
  • Portugal to London
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Ryanair
  • Ryanair
  • 17/9
  • Nonstop
  • 2h 25m total
  • Portugal to London
Search Deals
Highest demand for flights based on searches. 32% potential increase in price (£27 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 2025
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Price to beat on a round-trip flight from Portugal to London (LON).
Search Deals
Price to beat on a one-way flight from Portugal to London (LON).
Search Deals

Find flight deals from Portugal to London

Cheapest flights from Portugal to London
Explore the most affordable flight options available from Portugal to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Wed 8/1006:05OPO - STN
Nonstop2h 25mRyanair
Mon 13/1006:30STN - OPO
Nonstop2h 20mRyanair
Deal found 19/8£66
Thu 9/1021:35OPO - STN
Nonstop2h 24mRyanair
Wed 15/1006:35STN - OPO
Nonstop2h 25mRyanair
Deal found 19/8£67
Wed 1/1006:05OPO - STN
Nonstop2h 25mRyanair
Tue 7/1006:50STN - OPO
Nonstop2h 25mRyanair
Deal found 19/8£68
Sat 11/1006:55OPO - LGW
Nonstop2h 25measyJet
Mon 13/1006:10LGW - OPO
Nonstop2h 25measyJet
Deal found 18/8£68
Mon 17/1117:45OPO - STN
Nonstop2h 25mRyanair
Thu 20/1109:00STN - OPO
Nonstop2h 25mRyanair
Deal found 18/8£69
Thu 2/1006:40OPO - LGW
Nonstop2h 20measyJet
Mon 6/1006:10LGW - OPO
Nonstop2h 25measyJet
Deal found 19/8£69
Tue 23/922:20OPO - STN
Nonstop2h 25mRyanair
Fri 26/906:20STN - OPO
Nonstop2h 25mRyanair
Deal found 19/8£69
Sat 11/1006:55OPO - LGW
Nonstop2h 25measyJet
Sun 12/1009:40LGW - OPO
Nonstop2h 20measyJet
Deal found 19/8£69
Thu 2/1009:15OPO - STN
Nonstop2h 25mRyanair
Thu 9/1006:25STN - OPO
Nonstop2h 25mRyanair
Deal found 18/8£70
Fri 10/1006:05OPO - STN
Nonstop2h 15mRyanair
Tue 14/1006:50STN - OPO
Nonstop2h 25mRyanair
Deal found 19/8£71
Sat 11/1006:55OPO - LGW
Nonstop2h 25measyJet
Wed 15/1009:55LGW - OPO
Nonstop2h 25measyJet
Deal found 19/8£71
Thu 2/1017:20OPO - STN
Nonstop2h 25mRyanair
Sun 5/1006:40STN - OPO
Nonstop2h 25mRyanair
Deal found 19/8£72

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portugal 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 19 August 2025.
Use the filters below to find and compare flights from Portugal to London that are best for you.

Fly from

Portugal

Fly to

London

Route

Depart

Return

Price

PortoLondon

OPO - STN

OPOSTN

Porto

Wed 8/10

06:05-08:30

Nonstop2h 25m

London Stansted

Mon 13/10

06:30-08:50

Nonstop2h 20m

£66

PortoLondon

OPO - STN

OPOSTN

Porto

Thu 9/10

21:35-23:59

Nonstop2h 24m

London Stansted

Wed 15/10

06:35-09:00

Nonstop2h 25m

£67

PortoLondon

OPO - LGW

OPOLGW

Porto

Sat 11/10

06:55-09:20

Nonstop2h 25m

London Gatwick

Sun 12/10

09:40-12:00

Nonstop2h 20m

£68

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

£68

PortoLondon

OPO - STN

OPOSTN

Porto

Wed 1/10

06:05-08:30

Nonstop2h 25m

London Stansted

Tue 7/10

06:50-09:15

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

£68

PortoLondon

OPO - LGW

OPOLGW

Porto

Thu 2/10

06:40-09:00

Nonstop2h 20m

London Gatwick

Mon 6/10

06:10-08:35

Nonstop2h 25m

£69

PortoLondon

OPO - STN

OPOSTN

Porto

Mon 17/11

17:45-20:10

Nonstop2h 25m

London Stansted

Thu 20/11

09:00-11:25

Nonstop2h 25m

£69

PortoLondon

OPO - STN

OPOSTN

Porto

Tue 14/10

06:05-08:30

Nonstop2h 25m

London Stansted

Wed 15/10

06:35-09:00

Nonstop2h 25m

£69

PortoLondon

OPO - STN

OPOSTN

Porto

Tue 23/9

22:20-00:45

Nonstop2h 25m

London Stansted

Fri 26/9

06:20-08:45

Nonstop2h 25m

£69

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 60 results
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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
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 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 £112). Flying from Portugal 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 PT to LON?

Find hourly flight availability from Portugal 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 19 August 2025.

It’s typically best to fly out from Portugal to London in the evening. Doing so could potentially save you 13% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly return from Portugal to London. Price data was last updated on 17 August 2025.

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

Weekly flight availability from Portugal to London

Explore weekly flight availability from Portugal 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 19 August 2025.

The most flights from PT0 to LON are scheduled on a Tuesday (84 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (27 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 19 August 2025.
Read reviews from past customers who have flown with TAP AIR PORTUGAL, easyJet, andRyanair 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
7.1
Good
1,956 reviews
Check prices

Boarding

7.0

Comfort

7.1

Food

6.2

Overall

7.1

Crew

7.8

Entertainment

6.3

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
1,956 reviews
TAP AIR PORTUGAL
7.1
Good
1,956 reviews
Check prices

Boarding

7.0

Comfort

7.1

Food

6.2

Overall

7.1

Crew

7.8

Entertainment

6.3

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
1,820 reviews
TAP AIR PORTUGAL
7.1
Good
1,956 reviews
Check prices

Boarding

7.0

Comfort

7.1

Food

6.2

Overall

7.1

Crew

7.8

Entertainment

6.3

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
6.9
Okay
5,153 reviews
TAP AIR PORTUGAL
7.1
Good
1,956 reviews
Check prices

Boarding

7.0

Comfort

7.1

Food

6.2

Overall

7.1

Crew

7.8

Entertainment

6.3

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
7,283 reviews
TAP AIR PORTUGAL
7.1
Good
1,956 reviews
Check prices

Boarding

7.0

Comfort

7.1

Food

6.2

Overall

7.1

Crew

7.8

Entertainment

6.3

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.
Wizz Air
6.0
Okay
146 reviews
TAP AIR PORTUGAL
7.1
Good
1,956 reviews
Check prices

Boarding

7.0

Comfort

7.1

Food

6.2

Overall

7.1

Crew

7.8

Entertainment

6.3

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 Portugal to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portugal to London?

    Airlines like Ryanair, easyJet, and TAP AIR PORTUGAL 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 4h 15m. Airlines will cover a distance of 846 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 (£45), easyJet (£45), and British Airways (£45).

  • 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, Lisbon Humberto Delgado - London Gatwick and Lisbon Humberto Delgado - London Luton.

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

    Consider Cathay Pacific (84%), Finnair (84%) or Japan Airlines (72%) 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 £289 for a flight from Portugal to London. The cheapest flight overall is £78 while the most popular route, (Lisbon Humberto Delgado - London Heathrow) is currently priced at £118.

  • 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 £112). Flying from Portugal 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Alternative routes for Portugal to London

See prices for flight routes from nearby airports that may be better suited for you.
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Budapest to Heathrow flights
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Top 6 airlines flying from Portugal to London

Discover the top 6 airlines that operate flights from Portugal 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£14Average£101FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
Wizz AirCheapest£15Average£85FlexibilityNo cancel feeOn-timeN/A
Search Wizz Air flights
easyJetCheapest£32Average£124FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£44Average£163FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Jet2Cheapest£57Average£207FlexibilityNo cancel feeOn-timeN/A
Search Jet2 flights
TAP AIR PORTUGALCheapest£84Average£187FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL 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 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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