Cheapest Flights to Lisbon from the UK: 2026 Guide

TAP Air Portugal — Portugal's national carrier, operating from London Heathrow, London Gatwick, Manchester, and Edinburgh to Lisbon. TAP offers competitive fares and good connections to the rest of Portugal and to Brazil. Fares include a carry-on bag; hold luggage is extra on economy fares.\n\neasyJet — Operates from London Gatwick, London Luton, Manchester, Edinburgh, Bristol, and several other UK airports to Lisbon. Competitive fares with a similar model to Ryanair.\n\nRyanair — Operates from London Stansted, Manchester, Birmingham, Edinburgh, Glasgow, Bristol, and other UK airports to Lisbon. Lowest base fares but charges for hold luggage and seat selection.\n\nBritish Airways — Operates from London Heathrow to Lisbon. Higher fares but includes a carry-on bag and checked luggage on some fares.\n\nWizz Air — Operates from London Luton and several regional UK airports to Lisbon. Very low base fares but strict baggage policies.

January and February are the cheapest months — demand is low after Christmas and fares drop significantly. Expect fares from £35–£75 return from London. Lisbon in winter is mild (12–16°C) and largely uncrowded.\n\nMarch and April offer good value — the weather improves (16–20°C), the city is green after winter rains, and fares remain reasonable (£50–£110 return). Avoid Easter week — prices spike.\n\nMay and June are excellent — warm and sunny (22–26°C), manageable crowds, and fares still reasonable before peak summer.\n\nJuly and August are peak season — Lisbon is very hot (28–35°C) and busy. Fares rise significantly; book 3–4 months in advance.\n\nSeptember and October are arguably the best months — the summer heat eases, the city is less crowded, and fares drop back (£55–£120 return). October is particularly good.\n\nNovember and December (excluding Christmas) offer good value — fares from £40–£85 return are common.

London Gatwick — easyJet's main London hub for Lisbon, with multiple daily flights. Competitive fares and good frequency. The Gatwick Express connects to London Victoria in 30 minutes.\n\nLondon Stansted — Ryanair's main London hub. High frequency and consistently low base fares. The Stansted Express connects to London Liverpool Street in 47 minutes.\n\nManchester — Excellent connections to Lisbon from Manchester, with TAP, easyJet, and Ryanair all operating the route. Good value fares and convenient for the north of England.\n\nRegional airports — Ryanair and easyJet operate from Birmingham, Edinburgh, Glasgow, Bristol, and several other UK airports. Fares from regional airports are often cheaper than London when you factor in the cost of getting to London.

Book early for peak dates — summer school holidays and bank holiday weekends sell out fast. Book 3–4 months in advance for July and August.\n\nBe flexible on days — Tuesday and Wednesday flights are typically cheaper than Friday and Sunday. Avoid flying on bank holiday Fridays and Sunday evenings.\n\nUse fare comparison tools — Google Flights' calendar view is excellent for spotting the cheapest days. Set up price alerts on Skyscanner for your preferred dates.\n\nCheck baggage fees — Ryanair and Wizz Air charge for hold luggage (£20–£40 each way). If you need a hold bag, TAP or easyJet may be cheaper overall.\n\nConsider flying into Porto — Porto Francisco Sá Carneiro Airport (OPO) is also well-served from UK airports and is often cheaper than Lisbon. You can fly into Porto and out of Lisbon (or vice versa) to avoid backtracking.