London's airport sprawl is an advantage for weekend hunters. Stansted and Luton often lead on leisure sales to Barcelona, Porto, Amsterdam, Dublin, and Kraków. Gatwick adds strong Spain and Italy coverage; Heathrow wins when short-haul sales hit legacy carriers.
Convert carefully: a €90 return can still breach £100 after bags and rail to the airport. Factor Stansted Express or Thameslink into your total before celebrating a headline fare.
Eastern Europe remains the value play — Budapest, Sofia, and Warsaw pair low fares with walkable centres perfect for 48 hours. Book Friday early flights to maximise Saturday daylight.
Use SnagAFlight Weekend Finder from London, then compare airports on the results page. Set a price alert on your favourite city so the next sub-£100 dip pings your inbox.
FAQ: Is £100 realistic in summer? Less often in August — try January–March and November. Carry-on only? Strongly recommended on low-cost carriers. Which airport for central London? London City is rare for bargains; Gatwick or Heathrow rail links are usually simpler.
