Flight price alerts: London → Barcelona
Sample round trips on this route start around EUR 40; October 2026 is often the cheapest month in our next-3-month window. FlexTrip Alerts is a free email service — set flexible travel dates and a max price, and we notify you when a round trip fits. We check fares about four times per day; we do not sell tickets.
Set a free tracker with flexible dates and your max price. We email you only when a round trip fits.
Sample fares from EUR 40. Cheapest month in our next-3-month sample: October 2026.
Set an alert and we email you when a round trip drops under your limit.
Set a price alertRound trips on this route
Cheapest-seen sample fares (next 3 months) — confirm the final price on the booking site when you click through.
Last updated .
- See deal
- Round trip · 7 nights
- Sat 10 Oct · 19:05
- Return Sat 17 Oct · 22:25
EUR 40
- See deal
- Round trip · 7 nights
- Thu 12 Nov · 17:20
- Return Thu 19 Nov · 22:20
EUR 40
- See deal
- Round trip · 2 nights
- Thu 12 Nov · 17:20
- Return Sat 14 Nov · 10:20
EUR 41
- See deal
- Round trip · 3 nights
- Sun 11 Oct · 07:30
- Return Wed 14 Oct · 07:40
EUR 44
- See deal
- Round trip · 7 nights
- Sun 11 Oct · 07:30
- Return Sun 18 Oct · 06:45
EUR 44
- See deal
- Round trip · 5 nights
- Tue 20 Oct · 11:00
- Return Sun 25 Oct · 06:30
EUR 46
- See deal
- Round trip · 31 nights
- Sat 10 Oct · 19:05
- Return Tue 10 Nov · 09:50
EUR 47
- See deal
- Round trip · 8 nights
- Wed 23 Sept · 15:30
- Return Thu 01 Oct · 21:15
EUR 48
- See deal
- Round trip · 2 nights
- Fri 06 Nov · 12:15
- Return Sun 08 Nov · 09:50
EUR 49
- See deal
- Round trip · 7 nights
- Sat 03 Oct · 19:05
- Return Sat 10 Oct · 22:55
EUR 51
- See deal
- Round trip · Same day · 5h 25m at destination
- Tue 20 Oct · 05:40
- Return Tue 20 Oct · 16:40
EUR 51
- See deal
- Round trip · 5 nights
- Sat 17 Oct · 19:05
- Return Thu 22 Oct · 21:15
EUR 52
- See deal
- Round trip · 12 nights
- Mon 28 Sept · 20:50
- Return Sat 10 Oct · 22:55
EUR 53
- See deal
- Round trip · 5 nights
- Mon 28 Sept · 20:50
- Return Sat 03 Oct · 12:25
EUR 53
- See deal
- Round trip · 2 nights
- Sat 17 Oct · 16:50
- Return Mon 19 Oct · 09:35
EUR 54
| Depart | Return | Stay | Price | Book |
|---|---|---|---|---|
| Sat 10 Oct · 19:05 | Sat 17 Oct · 22:25 | 7 nights | EUR 40 | See deal |
| Thu 12 Nov · 17:20 | Thu 19 Nov · 22:20 | 7 nights | EUR 40 | See deal |
| Thu 12 Nov · 17:20 | Sat 14 Nov · 10:20 | 2 nights | EUR 41 | See deal |
| Sun 11 Oct · 07:30 | Wed 14 Oct · 07:40 | 3 nights | EUR 44 | See deal |
| Sun 11 Oct · 07:30 | Sun 18 Oct · 06:45 | 7 nights | EUR 44 | See deal |
| Tue 20 Oct · 11:00 | Sun 25 Oct · 06:30 | 5 nights | EUR 46 | See deal |
| Sat 10 Oct · 19:05 | Tue 10 Nov · 09:50 | 31 nights | EUR 47 | See deal |
| Wed 23 Sept · 15:30 | Thu 01 Oct · 21:15 | 8 nights | EUR 48 | See deal |
| Fri 06 Nov · 12:15 | Sun 08 Nov · 09:50 | 2 nights | EUR 49 | See deal |
| Sat 03 Oct · 19:05 | Sat 10 Oct · 22:55 | 7 nights | EUR 51 | See deal |
| Tue 20 Oct · 05:40 | Tue 20 Oct · 16:40 | Same day · 5h 25m at destination | EUR 51 | See deal |
| Sat 17 Oct · 19:05 | Thu 22 Oct · 21:15 | 5 nights | EUR 52 | See deal |
| Mon 28 Sept · 20:50 | Sat 10 Oct · 22:55 | 12 nights | EUR 53 | See deal |
| Mon 28 Sept · 20:50 | Sat 03 Oct · 12:25 | 5 nights | EUR 53 | See deal |
| Sat 17 Oct · 16:50 | Mon 19 Oct · 09:35 | 2 nights | EUR 54 | See deal |
Frequently asked questions
- How do I get email alerts when London to Barcelona flights drop in price?
- Create a free FlexTrip Alerts tracker for London (All Airports) (LON) to Barcelona El Prat Airport (BCN). Choose your flexible departure window, stay length, and maximum price — we email you when a round trip fits.
- Does FlexTrip Alerts book flights from London to Barcelona?
- No — we do not sell tickets. FlexTrip Alerts watches prices and emails you when a fare matches your plan. You book on the airline or travel site you prefer when you receive an alert.
- Can I set flexible travel dates for London to Barcelona alerts?
- Yes. Pick a departure window (not one fixed day) and how many nights you can stay. We match round trips that fit your window, stay length, and max price — then email you when one qualifies.
- How often does FlexTrip Alerts check London to Barcelona fares?
- We scan aggregated fares on a schedule — about four times per day (every ~6 hours, UTC). You can also trigger an on-demand check from your dashboard, with a short cooldown between manual refreshes.
- What is the cheapest month to fly from London to Barcelona?
- Based on recent fare samples on this page, October 2026 is currently the cheapest month to fly from London to Barcelona, with round trips from about EUR 40. Prices change — set an alert to catch the next drop.
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