Cheap Flights from London to Lisbon

The route from London to Lisbon covers about 1,565 km (972 miles). A nonstop flight, when scheduled, usually takes around 2h 35m gate to gate, although total trip time still depends on airport queues, transfer costs, and how early you need to arrive. Because this is one of the longer intra-European combinations in the batch, schedule quality matters almost as much as the headline price. If you only see one-stop options on your travel dates, connections through Amsterdam or Barcelona can widen the fare mix, but total journey time often stretches to 6 to 8 hours.

For many travelers, the cheapest time to fly from London to Lisbon is outside late spring, summer, and holiday weeks. January to March and mid-November usually give you a better chance of seeing lower fares, especially if you can depart on Tuesday or Wednesday and avoid the busiest Friday-to-Sunday patterns. Shoulder-season trips are often the sweet spot on this city-and-sea route: you still get a strong travel experience in Lisbon, but airlines are not dealing with the same pressure they see during bank holidays, school breaks, or sold-out weekend peaks.

For this route, compare a mix of budget and full-service carriers rather than assuming one airline always wins on value.

• Ryanair: often one of the lowest headline fares if you can travel light.
• Vueling: often useful on Spain, Italy, and France city-pair schedules.
• British Airways: best for higher-frequency business-heavy timings from the UK.
• TAP Air Portugal: frequently competitive on Portugal routes and well-timed European departures.
• easyJet: often competitive on short-haul European routes with solid schedule choice.

Lisbon skyline and city-break atmosphere for this route.

Headline round-trip fares on this route often start around EUR 82 to EUR 127 in quieter periods. A more typical booking window lands closer to EUR 192 to EUR 257, while peak travel dates can push pricing toward EUR 316 to EUR 426 or higher. Prices change with school holidays, event weekends, and how many travelers are chasing the same nonstop times. On short-haul Europe trips, baggage, seat selection, and airport-transfer costs can change the real total more than many travelers expect, so always compare like-for-like fares.

On this route, airport choice can save money only if the ground transfer still makes sense for your trip. Start with Heathrow Airport on the London side and Humberto Delgado Airport on the Lisbon side, then widen the search if the fare difference is meaningful.

Lisbon mixes tiled neighborhoods, viewpoints, late dinners, and easy train links to beach towns, so it works just as well for a fast weekend as for a slower Portugal itinerary. If you are still planning the rest of the trip, see our Lisbon destination guide for more ideas before you book.

Airplane and route-planning visual for London to Lisbon.