Cheap flights from Portugal to London from £37
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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
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 30 April 2025.
Find flight deals from Portugal to London
Cheapest flights from Portugal to LondonExplore 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 30 April 2025.
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 30 April 2025.
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 30 April 2025.
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
PortoLondon
OPO - LGW
OPOLGW
Porto
Sat 17/5
06:55-09:20
Nonstop2h 25m
London Gatwick
Mon 2/6
06:10-08:35
Nonstop2h 25m
PortoLondon
OPO - LTN
OPOLTN
Porto
Fri 23/5
09:25-11:50
Nonstop2h 25m
London Luton
Fri 13/6
06:30-08:55
Nonstop2h 25m
LisbonLondon
LIS - STN
LISSTN
Lisbon Humberto Delgado
Thu 22/5
05:55-08:40
Nonstop2h 45m
London Stansted
Sun 8/6
20:30-23:25
Nonstop2h 55m
LisbonLondon
LIS - LGW
LISLGW
Lisbon Humberto Delgado
Fri 23/5
06:40-09:25
Nonstop2h 45m
London Gatwick
Sun 8/6
20:30-23:20
Nonstop2h 50m
LisbonLondon
LIS - LTN
LISLTN
Lisbon Humberto Delgado
Sat 17/5
11:05-13:50
Nonstop2h 45m
London Luton
Mon 2/6
18:05-20:55
Nonstop2h 50m
LisbonLondon
LIS - LGW
LISLGW
Lisbon Humberto Delgado
Thu 15/5
06:40-09:25
Nonstop2h 45m
London Gatwick
Sat 17/5
20:10-08:15
1 stop12h 05m
LisbonLondon
LIS - STN
LISSTN
Lisbon Humberto Delgado
Wed 21/5
05:55-08:40
Nonstop2h 45m
London Stansted
Mon 26/5
21:50-20:35
2 stops22h 45m
PortoLondon
OPO - LGW
OPOLGW
Porto
Thu 15/5
06:40-09:00
Nonstop2h 20m
London Gatwick
Mon 19/5
20:20-09:00
1 stop12h 40m
LisbonLondon
LIS - LGW
LISLGW
Lisbon Humberto Delgado
Wed 1/10
12:55-15:35
Nonstop2h 40m
London Gatwick
Sun 5/10
10:35-13:25
Nonstop2h 50m
LisbonLondon
LIS - LHR
LISLHR
Lisbon Humberto Delgado
Sat 4/10
20:10-22:55
Nonstop2h 45m
London Heathrow
Sat 11/10
19:50-22:35
Nonstop2h 45m
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.
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 30 April 2025.
It’s typically best to fly out from Portugal to London in the evening. Doing so could potentially save you 21% 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 30 March 2025.
Travellers seeking maximum savings on their Portugal to London flight should consider departing on Monday 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 30 April 2025.
The most flights from PT0 to LON are scheduled on a Tuesday (80 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).
Rainfall in London by month
Plan your trip to London by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.
Temperature in London by month
Plan your trip to London by taking into account the average temperature totals by month.
If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).
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 30 April 2025.
To help decide which airline to fly from Portugal to London, see what other customers have to say about Aegean Airlines, EL AL and Norwegian. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2024
SKG - FRA
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.
Travelling to a place near Portugal?
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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.
Top 5 airlines flying from Portugal to London
Discover the top 5 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 30 April 2025.
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?
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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.