Flight price alerts: London → Barcelona
Sample round trips on this route start around EUR 33; September 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 33. Cheapest month in our next-3-month sample: September 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
- Wed 09 Sept · 16:30
- Return Wed 16 Sept · 10:55
EUR 33
- See deal
- Round trip · 2 nights
- Wed 23 Sept · 16:30
- Return Fri 25 Sept · 21:35
EUR 36
- See deal
- Round trip · 5 nights
- Sun 27 Sept · 07:00
- Return Fri 02 Oct · 21:35
EUR 39
- See deal
- Round trip · 14 nights
- Wed 02 Sept · 16:30
- Return Wed 16 Sept · 10:55
EUR 40
- See deal
- Round trip · 6 nights
- Sat 26 Sept · 16:50
- Return Fri 02 Oct · 21:35
EUR 40
- See deal
- Round trip · 3 nights
- Wed 23 Sept · 16:30
- Return Sat 26 Sept · 10:50
EUR 41
- See deal
- Round trip · 7 nights
- Wed 23 Sept · 16:30
- Return Wed 30 Sept · 20:20
EUR 42
- See deal
- Round trip · 7 nights
- Sat 05 Sept · 18:15
- Return Sat 12 Sept · 10:35
EUR 43
- See deal
- Round trip · 17 nights
- Sat 12 Sept · 16:50
- Return Tue 29 Sept · 10:50
EUR 44
- See deal
- Round trip · 4 nights
- Sat 05 Sept · 18:15
- Return Wed 09 Sept · 05:55
EUR 46
- See deal
- Round trip · 7 nights
- Wed 02 Sept · 18:20
- Return Wed 09 Sept · 05:55
EUR 47
- See deal
- Round trip · 1 night
- Sun 20 Sept · 05:40
- Return Mon 21 Sept · 09:35
EUR 48
- See deal
- Round trip · 4 nights
- Mon 05 Oct · 20:50
- Return Fri 09 Oct · 23:25
EUR 48
- See deal
- Round trip · 12 nights
- Wed 09 Sept · 16:30
- Return Mon 21 Sept · 09:35
EUR 49
- See deal
- Round trip · 7 nights
- Sun 20 Sept · 07:00
- Return Sun 27 Sept · 09:35
EUR 50
| Depart | Return | Stay | Price | Book |
|---|---|---|---|---|
| Wed 09 Sept · 16:30 | Wed 16 Sept · 10:55 | 7 nights | EUR 33 | See deal |
| Wed 23 Sept · 16:30 | Fri 25 Sept · 21:35 | 2 nights | EUR 36 | See deal |
| Sun 27 Sept · 07:00 | Fri 02 Oct · 21:35 | 5 nights | EUR 39 | See deal |
| Wed 02 Sept · 16:30 | Wed 16 Sept · 10:55 | 14 nights | EUR 40 | See deal |
| Sat 26 Sept · 16:50 | Fri 02 Oct · 21:35 | 6 nights | EUR 40 | See deal |
| Wed 23 Sept · 16:30 | Sat 26 Sept · 10:50 | 3 nights | EUR 41 | See deal |
| Wed 23 Sept · 16:30 | Wed 30 Sept · 20:20 | 7 nights | EUR 42 | See deal |
| Sat 05 Sept · 18:15 | Sat 12 Sept · 10:35 | 7 nights | EUR 43 | See deal |
| Sat 12 Sept · 16:50 | Tue 29 Sept · 10:50 | 17 nights | EUR 44 | See deal |
| Sat 05 Sept · 18:15 | Wed 09 Sept · 05:55 | 4 nights | EUR 46 | See deal |
| Wed 02 Sept · 18:20 | Wed 09 Sept · 05:55 | 7 nights | EUR 47 | See deal |
| Sun 20 Sept · 05:40 | Mon 21 Sept · 09:35 | 1 night | EUR 48 | See deal |
| Mon 05 Oct · 20:50 | Fri 09 Oct · 23:25 | 4 nights | EUR 48 | See deal |
| Wed 09 Sept · 16:30 | Mon 21 Sept · 09:35 | 12 nights | EUR 49 | See deal |
| Sun 20 Sept · 07:00 | Sun 27 Sept · 09:35 | 7 nights | EUR 50 | 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, September 2026 is currently the cheapest month to fly from London to Barcelona, with round trips from about EUR 33. Prices change — set an alert to catch the next drop.
More routes from London
View all 35 routes from LondonSet alerts for other destinations from London (All Airports) (LON).
Flying to Barcelona?
See all 3 departure cities with price alerts into Barcelona El Prat Airport (BCN).
View routes to Barcelona