Gatwick usually wins on money — but your destination determines by how much.
Gatwick wins clearly. The transfer economics favour it for this destination.
2 travellers · Barcelona flights · contactless fares · Jul 2026
Totals rounded to nearest euro. UK transport converted at 1 GBP ≈ 1.17 EUR. Walk-up single, contactless/Oyster, off-peak. Both airports measured identically.
The winner direction stays the same — but your group size amplifies the saving or the cost of choosing the cheaper airport.
Gatwick flights are about €34cheaper for 2 travellers before any transfer costs. Gatwick can absorb up to €34in higher transfer costs and still win. Most destinations keep Gatwick’s transfer penalty below that line. Paddington — with Heathrow Express advance fares — pushes the transfer advantage high enough to create a near-tie.
Only the final destination changed. Everything else — flights, bags, travellers — stayed the same.
Gatwick’s cheaper flights depend on rail access to London. Without a rail connection, taxi costs rise significantly — eroding the fare advantage. Heathrow offers more transport diversity — Tube, Elizabeth Line, Express, taxi, and coach — but flights are typically €10–20 more for comparable routes.
Bring your own two flights.
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