Routes
One way, per person. Fares other travellers found recently; prices change and are confirmed only when you book.
We track London to Lisbon flights to Portugal from the UK, and Portugal stays on the same time as the UK all year. Fares change often, so book early for Easter, the July and August school summer holidays, October half term, and Christmas and New Year. Our live fare calendar shows this month's lowest fares so you can compare dates before you book.
Last checked: November 2026
Routes we track to Portugal
We track London to Lisbon, the main route UK travellers use to reach Portugal. Fares move with demand, so the date you pick shapes what you pay. Portugal is on the same time as the UK all year, so there is no jet lag to plan around. Our live fare calendar on this page shows this month's lowest fares.
Use the calendar to compare dates before you commit. Fares to Portugal from the UK rise when schools break up and fall outside those weeks. If your dates are fixed, set an alert so you do not have to keep checking.
- Open the live fare calendar on this page and pick your travel month.
- Compare the lowest fares shown for London to Lisbon across the dates you can fly.
- Check the busy weeks listed below and move your trip if you have room.
- Set a price alert for your dates so we email you when fares drop.
- Book when the fare suits you, then sort your eSIM and top up before you fly.
When fares to Portugal are lowest
Fares to Portugal are usually lowest outside the school holidays and major festivals. The quietest windows tend to sit outside Easter, the July and August summer holidays, October half term, and Christmas and New Year. The live fare calendar on this page shows this month's lowest fares, so check it before you choose dates.
If you can travel midweek and outside school breaks, you have more room to find a lower fare. The calendar does the comparison for you across the month.
Fares change daily, so a low fare today may not last. Set an alert rather than watching the page every day.
Busy weeks for Portugal
The busiest weeks for flights to Portugal are Easter, the UK school summer holidays in July and August, October half term, and Christmas and New Year. Demand is highest then, so fares are less likely to fall and seats sell faster. Book earlier if your dates fall in these windows.
Easter moves each year, so check the dates before you plan. July and August carry the longest stretch of high demand. October half term is a shorter burst but still busy. Christmas and New Year fill quickly too.
If you have flexibility, shift your trip by a week or two around these periods. That often gives you a better choice of fares.
Arriving in Portugal: phone, data and entry
Portugal has three main mobile networks, MEO, NOS and Vodafone, with coverage up to 5G. A travel eSIM gets you online on arrival without hunting for a local SIM. Portugal is on the same time as the UK all year, so your schedule stays simple. Check the official entry rules for your passport before you fly.
We track data plans across 12 months so you can compare options for your trip. Choose an eSIM before you leave the UK and install it on your phone. If you run low on data, a mobile top up keeps you connected.
Entry rules depend on your passport and can change. Check the official rules for your passport before you fly, and make sure your passport meets the validity requirements for your trip.
Free price alerts for your trip
We check fares every day and email when they fall well under the usual price for your dates or under your own target. Alerts are free and save you checking the calendar by hand. Set your route, dates and target, then let the emails do the work.
You can set a target that fits your budget and let us watch London to Lisbon for you. If fares drop below it, you hear from us. If they fall well under the usual price for your dates, you hear from us too.
Set your alert before you start comparing hotels and eSIMs so you have the fare locked in early. When a fare drops, book it and move on to your data plan.