CDG Airport to Le Havre: No Direct RER — Use TER, Bus, or Taxi

The RER (Réseau Express Régional) does not serve Le Havre. RER lines (A–E) operate only within Île-de-France (Paris metro region). Le Havre is in Normandy, ~200 km northwest.

Best Public Transport Options

1. TER Train (Regional Express) — Recommended

• Route: CDG Airport → RER B to Paris Gare du Nord (35 min) → walk/Metro to Paris Saint-Lazare (15 min) → TER Normandie to Le Havre (2 hr 15 min).
• Total: ~3 hr 30 min including transfers.
• Frequency: TER every 1–2 hrs; RER B every 10–15 min.
• Booking: SNCF Connect or app; TER tickets open 4 months ahead.

2. Direct Coach (Ouibus / FlixBus) — Simplest

• Route: CDG Airport (Terminal 3 bus station) → Le Havre (Gare Routière).
• Time: ~2 hr 45 min (Ouibus) / ~2 hr 30 min (FlixBus).
• Frequency: 4–6 daily.
• Cost: €15–€35 (book online early).
• Advantage: No Paris transfer; luggage included.

3. Taxi / Private Transfer — Fastest Door-to-Door

• Time: ~2 hr (A13 / A29 autoroute, traffic-dependent).
• Cost: €250–€350 (pre-booked); metered taxi higher.
• Book: Blacklane, Welcome Pickups, or local Normandy companies.

Not Recommended

• RER B all the way to Rouen then TER — longer, more changes.
• Driving rental car if unfamiliar with French autoroutes/Paris ring road.

Bottom line: For most travelers, direct coach (Ouibus/FlixBus) is optimal. For rail lovers, RER B → Saint-Lazare → TER.