When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 42 days in advance, which can save you up to 93% on flights from Portugal to London Heathrow Airport compared to booking the week you need them. Waiting 42 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £46. For sooner than that we have options available in the next 3 days from £70.
Due to multiple factors, expect to potentially pay more when booking in August. For low rates, January can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Portugal in January are about £58 on average during January, but can be found for as low as £15.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portugal to London Heathrow Airport as you normally would.
Fly from
Fly to
Budget
£92 - £167
Route
Depart
Return
Price
Lisbon Humberto DelgadoLondon Heathrow
LIS - LHR
LISLHR
Lisbon Humberto Delgado
Thu 6/6
Nonstop2h 40m
London Heathrow
Sun 9/6
Nonstop2h 45m
Lisbon Humberto DelgadoLondon Heathrow
LIS - LHR
LISLHR
Lisbon Humberto Delgado
Wed 22/5
Nonstop2h 40m
London Heathrow
Wed 29/5
Nonstop2h 50m
PortoLondon Heathrow
OPO - LHR
OPOLHR
Porto
Tue 4/6
1 stop5h 45m
London Heathrow
Sat 8/6
1 stop11h 10m
FaroLondon Heathrow
FAO - LHR
FAOLHR
Faro
Fri 17/5
Nonstop2h 45m
London Heathrow
Sun 19/5
Nonstop2h 55m
Lisbon Humberto DelgadoLondon Heathrow
LIS - LHR
LISLHR
Lisbon Humberto Delgado
Thu 23/5
1 stop13h 10m
London Heathrow
Wed 29/5
1 stop13h 05m
PortoLondon Heathrow
OPO - LHR
OPOLHR
Porto
Wed 12/6
1 stop11h 20m
London Heathrow
Sun 16/6
1 stop11h 10m
PortoLondon Heathrow
OPO - LHR
OPOLHR
Porto
Fri 14/6
1 stop5h 50m
London Heathrow
Mon 17/6
1 stop15h 45m
FaroLondon Heathrow
FAO - LHR
FAOLHR
Faro
Tue 28/5
1 stop12h 45m
London Heathrow
Tue 4/6
1 stop6h 20m
Lisbon Humberto DelgadoLondon Heathrow
LIS - LHR
LISLHR
Lisbon Humberto Delgado
Mon 27/5
1 stop12h 10m
London Heathrow
Tue 4/6
1 stop5h 40m
No data available for this route at this time. Please check back soon.
Entertainment
Crew
Comfort
Food
Overall
Boarding
Reviews
Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.
Entertainment
Crew
Comfort
Food
Overall
Boarding
Reviews
Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.
Entertainment
Crew
Comfort
Food
Overall
Boarding
Reviews
Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.
Entertainment
Crew
Comfort
Food
Overall
Boarding
Reviews
Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.
Entertainment
Crew
Comfort
Food
Overall
Boarding
Reviews
Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.
Entertainment
Crew
Comfort
Food
Overall
Boarding
Reviews
Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
53%of flight departures | Morning6 am to noon |
30%of flight departures | AfternoonNoon to 6 pm |
16%of flight departures | Evening6 pm to midnight |
Cheapflights makes it easy to find Portugal to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
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 Heathrow from Portugal.
Yes, we can. To see specific flights from Portugal to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Portugal today and book when prices fit your budget.