Tool

Flexible-Date Fare Finder

Find the cheapest day to fly your route. Shift by ±3 days and save up to 30% without changing destination.

London → Barcelona · week of 1 May 2026

Prices shown per direction per passenger. Cheapest outbound + return combo highlighted below.

Outbound
Mon
28 Apr
£45
Tue
29 Apr
£38
Wed
30 Apr
£39
Thu
1 May
£52
Fri
2 May
£89
Sat
3 May
£112
Sun
4 May
£95
Return
Mon
5 May
£42
Tue
6 May
£35
Wed
7 May
£41
Thu
8 May
£48
Fri
9 May
£72
Sat
10 May
£98
Sun
11 May
£85
Cheapest combo: Tue 29 Apr out · Tue 6 May back — saves £137 vs Fri/Sun
£73 return

Why flexible dates save money

Airline pricing engines treat Friday evenings and Sunday afternoons as peak demand — that’s when most people want to travel, so that’s when prices spike. Shift one leg of your trip by even a single day and you can often knock £40–£80 off a European return.

The patterns that hold across almost every short-haul European route:

Use this tool to check the full 7-day window around your target. If even one leg can shift by a day or two, the total saving is usually worth the flex.

Fare Finder FAQ

Do these prices include taxes and fees?

Yes. All prices shown are the advertised fare including government taxes and airline surcharges. They don’t include optional extras like seat selection, checked bags or priority boarding.

Are all the fares on the same airline?

Not necessarily. The calendar shows the cheapest fare on each day, which may be a different carrier to the other days. Click through to see exactly who’s flying.

Why can I sometimes save more by booking outbound and return separately?

Budget airlines often price each leg independently, so mixing two carriers (e.g. easyJet outbound, Ryanair return) can beat any single-carrier return fare. Our search defaults to showing the cheapest combination, regardless of airline.

What’s the best flex window to search?

±3 days captures the Tue/Wed savings without pushing too far from your target. ±7 gives maximum savings for genuinely open travellers but will often suggest awkward overnight gaps.

Does this work for long-haul routes?

Yes, but savings are proportionally smaller. A flexible-date search on UK–USA typically saves 8–15% rather than 25–30%, because long-haul pricing is less demand-sensitive day-to-day.