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Porto to London flights in December 2026 from $17 OPO → LCY, LGW, LHR, LTN, SEN, STN

Porto Airport (OPO) → London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN)

For departures in December 2026, the cheapest return found recently is $82 with Ryanair, 22 Dec – 28 Dec, found 2 days ago. The cheapest one-way found recently is $17 with Ryanair, 15 Dec, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 7 departure dates is usually $114 to $164. Across all 14 departure dates we hold on this route, it is usually $98 to $169. Of the 2 months with enough return fares to compare, December 2026 is usually the most expensive.

Cheapest return found recently

$82

22 Dec – 28 Dec · Ryanair

Porto Airport (OPO) → Stansted Airport (STN)

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
22 Dec – 28 Dec$82Ryanairout nonstop, back nonstopfound 2 days agoSee prices for these dates
10 Dec – 15 Dec$101Ryanairout nonstop, back nonstopfound 6 days agoSee prices for these dates
11 Dec – 12 Dec$126Ryanairout nonstop, back nonstopfound 4 days agoSee prices for these dates
25 Dec – 30 Dec$143Vuelingout 1 stop, back nonstopfound 5 days agoSee prices for these dates
30 Dec – 2 Jan 2027$161Ryanairout 1 stop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

7 departure dates

10 Dec – 15 Dec: $101, found 6 days ago11 Dec – 12 Dec: $126, found 4 days ago19 Dec – 22 Dec: $170, found 2 days ago20 Dec – 24 Dec: $166, found 5 days ago22 Dec – 28 Dec: $82, found 2 days ago25 Dec – 30 Dec: $143, found 5 days ago30 Dec – 2 Jan 2027: $161, found 3 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
10 Dec – 15 Dec$101RyanairPorto Airport (OPO) → Stansted Airport (STN)out nonstop, back nonstopfound 6 days agoSee prices for these dates
11 Dec – 12 Dec$126RyanairPorto Airport (OPO) → Stansted Airport (STN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
19 Dec – 22 Dec$170RyanairPorto Airport (OPO) → Stansted Airport (STN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
20 Dec – 24 Dec$166easyJetPorto Airport (OPO) → London Luton Airport (LTN)out nonstop, back 1 stopfound 5 days agoSee prices for these dates
22 Dec – 28 Dec$82RyanairPorto Airport (OPO) → Stansted Airport (STN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
25 Dec – 30 Dec$143VuelingPorto Airport (OPO) → London Heathrow Airport (LHR)out 1 stop, back nonstopfound 5 days agoSee prices for these dates
30 Dec – 2 Jan 2027$161RyanairPorto Airport (OPO) → Stansted Airport (STN)out 1 stop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $72.

November 2026From $973 departure dates19 Nov – 21 Nov · found 7 days agoSee prices for these dates
December 2026From $827 departure dates22 Dec – 28 Dec · found 2 days agoSee prices for these dates
January 2027From $72Cheapest seen2 departure dates28 Jan 2027 – 31 Jan 2027 · found 2 days agoSee prices for these dates
March 2027From $762 departure dates7 Mar 2027 – 16 Mar 2027 · found 5 days agoSee prices for these dates

One-way

We hold one-way fares on only 1 departure date in December 2026, too few to say what one usually costs.

Cheapest one-way found recently

$17

15 Dec · Ryanair

Porto Airport (OPO) → Stansted Airport (STN)

nonstop

found 2 days ago

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

FareTell may earn a commission when you book through a partner.

The cheapest dates in December 2026

DatesFromAirlineStopsFound
15 Dec$17Ryanairnonstopfound 2 days agoOpen this trip

Every date we hold

1 departure date

See every date as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
15 Dec$17RyanairPorto Airport (OPO) → Stansted Airport (STN)nonstopfound 2 days agoOpen this trip

Which month looks cheapest?

December 2026 is the cheapest month — from $17.

December 2026From $17Cheapest seen1 departure date15 Dec · found 2 days agoOpen this trip
May 2027From $791 departure date16 May 2027 · found 5 days agoOpen this trip

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