air-routes.com

2026.09.07 (58fefa6)

      7 results

      No direct — 7 connections
      STL → HEL
      • via Toronto (YYZ) — 9h 46m total
      • via Chicago (ORD) — 10h 29m total
      • via London (LHR) — 10h 44m total
      • via Dallas-Fort Worth (DFW) — 11h 44m total
      • via Frankfurt am Main (FRA) — 11h 48m total
      • via Seattle (SEA) — 14h 13m total
      • via Los Angeles (LAX) — 15h 25m total

      How it works — direct flights first; otherwise connections ordered preferring fewer stops (times shown are flying time only), up to seven.
      Data refreshed daily · API docs · /api/connections?from=OTP&to=BCN