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London to Lisbon flights in December 2026 from $105 LCY, LGW, LHR, LTN, SEN, STN → LIS

London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Lisbon Portela Airport (LIS)

For departures in December 2026, the cheapest return found recently is $105 with Ryanair, 30 Dec – 8 Jan 2027, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 13 departure dates is usually $112 to $258. Across all 30 departure dates we hold on this route, it is usually $114 to $218. Of the 4 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$105

30 Dec – 8 Jan 2027 · Ryanair

Stansted Airport (STN) → Lisbon Portela Airport (LIS)

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$91

6 Dec – 18 Jan 2027 · Ryanair

Stansted Airport (STN) → Lisbon Portela Airport (LIS)

out nonstop, back nonstop

found 4 days ago

See prices for these datesCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
6 Dec – 18 Jan 2027$91Ryanairout nonstop, back nonstopfound 4 days agoSee prices for these dates
7 Dec – 9 Dec$93Ryanairout nonstop, back nonstopfound 6 days agoSee prices for these dates
30 Dec – 8 Jan 2027$105Ryanairout nonstop, back nonstopfound 2 days agoSee prices for these dates
4 Dec – 7 Dec$112easyJetout nonstop, back nonstopfound 6 days agoSee prices for these dates
3 Dec – 29 Dec$137Ryanairout nonstop, back nonstopfound 7 days agoSee prices for these dates

Every date we hold

13 departure dates

3 Dec – 29 Dec: $137, found 7 days ago4 Dec – 7 Dec: $112, found 6 days ago5 Dec – 10 Dec: $295, found 4 days ago6 Dec – 18 Jan 2027: $91, found 4 days ago7 Dec – 9 Dec: $93, found 6 days ago10 Dec – 3 Jan 2027: $216, found 3 days ago12 Dec – 27 Dec: $175, found 6 days ago18 Dec – 31 Dec: $258, found 5 days ago19 Dec – 28 Dec: $218, found 2 days ago20 Dec – 11 Jan 2027: $158, found 5 days ago21 Dec – 3 Jan 2027: $285, found 2 days ago22 Dec – 2 Jan 2027: $326, found 2 days ago30 Dec – 8 Jan 2027: $105, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
3 Dec – 29 Dec$137RyanairStansted Airport (STN) → Lisbon Portela Airport (LIS)out nonstop, back nonstopfound 7 days agoSee prices for these dates
4 Dec – 7 Dec$112easyJetLondon Luton Airport (LTN) → Lisbon Portela Airport (LIS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
5 Dec – 10 Dec$295KLMLondon City Airport (LCY) → Lisbon Portela Airport (LIS)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
6 Dec – 18 Jan 2027$91RyanairStansted Airport (STN) → Lisbon Portela Airport (LIS)out nonstop, back nonstopfound 4 days agoSee prices for these dates
7 Dec – 9 Dec$93RyanairStansted Airport (STN) → Lisbon Portela Airport (LIS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
10 Dec – 3 Jan 2027$216easyJetLondon Luton Airport (LTN) → Lisbon Portela Airport (LIS)out nonstop, back 2 stopsfound 3 days agoSee prices for these dates
12 Dec – 27 Dec$175RyanairStansted Airport (STN) → Lisbon Portela Airport (LIS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
18 Dec – 31 Dec$258RyanairStansted Airport (STN) → Lisbon Portela Airport (LIS)out nonstop, back nonstopfound 5 days agoSee prices for these dates
19 Dec – 28 Dec$218Ryanair UKStansted Airport (STN) → Lisbon Portela Airport (LIS)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
20 Dec – 11 Jan 2027$158Ryanair UKStansted Airport (STN) → Lisbon Portela Airport (LIS)out 2 stops, back nonstopfound 5 days agoSee prices for these dates
21 Dec – 3 Jan 2027$285Wizz Air UKLondon Gatwick Airport (LGW) → Lisbon Portela Airport (LIS)out 1 stop, back 2 stopsfound 2 days agoSee prices for these dates
22 Dec – 2 Jan 2027$326Ryanair UKStansted Airport (STN) → Lisbon Portela Airport (LIS)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
30 Dec – 8 Jan 2027$105RyanairStansted Airport (STN) → Lisbon Portela Airport (LIS)out nonstop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $74.

November 2026From $1107 departure dates15 Nov – 18 Nov · found 8 days agoSee prices for these datesEvery date in November 2026
December 2026From $9113 departure dates6 Dec – 18 Jan 2027 · found 4 days agoSee prices for these dates
January 2027From $74Cheapest seen4 departure dates25 Jan 2027 – 1 Feb 2027 · found 2 days agoSee prices for these dates
February 2027From $1001 departure date21 Feb 2027 – 24 Feb 2027 · found 7 days agoSee prices for these dates
March 2027From $913 departure dates8 Mar 2027 – 10 Mar 2027 · found 2 days agoSee prices for these dates
April 2027From $2261 departure date29 Apr 2027 – 2 May 2027 · found 2 days agoSee prices for these dates
July 2027From $1921 departure date4 Jul 2027 – 18 Jul 2027 · found 7 days agoSee prices for these dates

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work