Flight price alerts: Madrid → London
Sample round trips on this route start around EUR 48; 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 48. 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 · 4 nights
- Thu 17 Sept · 12:55
- Return Mon 21 Sept · 05:55
EUR 48
- See deal
- Round trip · 3 nights
- Fri 18 Sept · 06:45
- Return Mon 21 Sept · 05:55
EUR 48
- See deal
- Round trip · 3 nights
- Thu 17 Sept · 17:40
- Return Sun 20 Sept · 06:00
EUR 53
- See deal
- Round trip · 3 nights
- Thu 10 Sept · 12:30
- Return Sun 13 Sept · 08:00
EUR 54
- See deal
- Round trip · 1 night
- Fri 04 Sept · 12:30
- Return Sat 05 Sept · 08:00
EUR 74
- See deal
- Round trip · 2 nights
- Thu 03 Sept · 21:45
- Return Sat 05 Sept · 08:00
EUR 82
- See deal
- Round trip · 3 nights
- Mon 14 Sept · 22:50
- Return Thu 17 Sept · 06:00
EUR 86
- See deal
- Round trip · 8 nights
- Tue 11 Aug · 16:50
- Return Wed 19 Aug · 08:00
EUR 98
- See deal
- Round trip · 3 nights
- Fri 09 Oct · 12:30
- Return Mon 12 Oct · 06:00
EUR 115
- See deal
- Round trip · 3 nights
- Fri 28 Aug · 06:45
- Return Mon 31 Aug · 05:55
EUR 126
- See deal
- Round trip · 1 night
- Tue 01 Sept · 23:05
- Return Wed 02 Sept · 21:30
EUR 136
- See deal
- Round trip · 4 nights
- Fri 14 Aug · 06:45
- Return Tue 18 Aug · 08:00
EUR 141
- See deal
- Round trip · 2 nights
- Fri 21 Aug · 06:10
- Return Sun 23 Aug · 06:00
EUR 150
- See deal
- Round trip · 3 nights
- Wed 26 Aug · 06:30
- Return Sat 29 Aug · 19:50
EUR 150
- See deal
- Round trip · 7 nights
- Sat 22 Aug · 19:45
- Return Sat 29 Aug · 19:50
EUR 158
| Depart | Return | Stay | Price | Book |
|---|---|---|---|---|
| Thu 17 Sept · 12:55 | Mon 21 Sept · 05:55 | 4 nights | EUR 48 | See deal |
| Fri 18 Sept · 06:45 | Mon 21 Sept · 05:55 | 3 nights | EUR 48 | See deal |
| Thu 17 Sept · 17:40 | Sun 20 Sept · 06:00 | 3 nights | EUR 53 | See deal |
| Thu 10 Sept · 12:30 | Sun 13 Sept · 08:00 | 3 nights | EUR 54 | See deal |
| Fri 04 Sept · 12:30 | Sat 05 Sept · 08:00 | 1 night | EUR 74 | See deal |
| Thu 03 Sept · 21:45 | Sat 05 Sept · 08:00 | 2 nights | EUR 82 | See deal |
| Mon 14 Sept · 22:50 | Thu 17 Sept · 06:00 | 3 nights | EUR 86 | See deal |
| Tue 11 Aug · 16:50 | Wed 19 Aug · 08:00 | 8 nights | EUR 98 | See deal |
| Fri 09 Oct · 12:30 | Mon 12 Oct · 06:00 | 3 nights | EUR 115 | See deal |
| Fri 28 Aug · 06:45 | Mon 31 Aug · 05:55 | 3 nights | EUR 126 | See deal |
| Tue 01 Sept · 23:05 | Wed 02 Sept · 21:30 | 1 night | EUR 136 | See deal |
| Fri 14 Aug · 06:45 | Tue 18 Aug · 08:00 | 4 nights | EUR 141 | See deal |
| Fri 21 Aug · 06:10 | Sun 23 Aug · 06:00 | 2 nights | EUR 150 | See deal |
| Wed 26 Aug · 06:30 | Sat 29 Aug · 19:50 | 3 nights | EUR 150 | See deal |
| Sat 22 Aug · 19:45 | Sat 29 Aug · 19:50 | 7 nights | EUR 158 | See deal |
Frequently asked questions
- How do I get email alerts when Madrid to London flights drop in price?
- Create a free FlexTrip Alerts tracker for Adolfo Suarez Madrid Barajas Airport (MAD) to London (All Airports) (LON). Choose your flexible departure window, stay length, and maximum price — we email you when a round trip fits.
- Does FlexTrip Alerts book flights from Madrid to London?
- 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 Madrid to London 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 Madrid to London 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 Madrid to London?
- Based on recent fare samples on this page, September 2026 is currently the cheapest month to fly from Madrid to London, with round trips from about EUR 48. Prices change — set an alert to catch the next drop.
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