How to get from Saint-Germain-En-Laye to Gustave Roussy by RER?

By RER

To get from Saint-Germain-En-Laye to Gustave Roussy in Paris, take the A RER from Saint-Germain-En-Laye station to Châtelet Les Halles station. Next, take the B RER from Châtelet Les Halles station to Port Royal station. The total trip duration for this route is approximately 50 min.

50min
RER - A
RER - A
RER - B
RER - B
Walk to Gustave Roussy
Leaves from Saint-Germain-En-Laye

Step by Step

  • 1
    Start from RER station
    Start from RER station
    Saint-Germain-En-Laye
  • 2
    RER - A
    Wait for RER
    A
    Boissy-Saint-Léger
  • 3
    Ride to RER station
    Ride to RER station
    Châtelet Les Halles
    29 min
  • 4
    RER - B
    Wait for RER
    B
    Saint-Rémy-Lès-Chevreuse
  • 5
    Ride to RER station
    Ride to RER station
    Port Royal
    6 min
  • 6
    Walk to Gustave Roussy
    Walk to
    Gustave Roussy
    Rue Méchain
    600 m • 8 min
*Duration based on 8am traffic

By RER and metro

To get from Saint-Germain-En-Laye to Gustave Roussy in Paris, take the A RER from Saint-Germain-En-Laye station to Charles de Gaulle Etoile station. Next, take the 6 metro from Charles de Gaulle Etoile station to Saint-Jacques station. The total trip duration for this route is approximately 57 min.

57min
RER - A
RER - A
Metro - 6
Metro - 6
Walk to Gustave Roussy
Leaves from Saint-Germain-En-Laye

Step by Step

  • 1
    Start from RER station
    Start from RER station
    Saint-Germain-En-Laye
  • 2
    RER - A
    Wait for RER
    A
    Boissy-Saint-Léger
  • 3
    Ride to RER station
    Ride to RER station
    Charles de Gaulle Etoile
    23 min
  • 4
    Metro - 6
    Wait for metro
    6
    Nation
  • 5
    Ride to metro station
    Ride to metro station
    Saint-Jacques
    18 min
  • 6
    Walk to Gustave Roussy
    Walk to
    Gustave Roussy
    Rue Méchain
    540 m • 7 min
*Duration based on 8am traffic
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Public transit directions from Saint-Germain-En-Laye to Gustave Roussy

The distance between Saint-Germain-En-Laye, Paris and Gustave Roussy, Paris is approximately 24.89 km, which can typically be travelled in 50 min. Moovit will show you the directions from Saint-Germain-En-Laye to Gustave Roussy by RER, so no matter how you choose to travel in Paris – you will always have plenty of easy options.

Public transit stations close to Saint-Germain-En-Laye

Saint-Germain-En-Laye is located at Saint-Germain-En-Laye, Paris and the nearest public transit station is Gare Saint-Germain-En-Laye - Rue Thiers.

Bus stations close to Saint-Germain-En-Laye:

  • Gare Saint-Germain-En-Laye - Rue Thiers
  • Rue Thiers
  • Gare de St-Germain-En-Laye - Rue Thiers

Public transit stations close to Gustave Roussy, Paris

Gustave Roussy is located at Rue Méchain, Paris and the nearest public transit station is Arago - Santé.

Metro stations close to Gustave Roussy:

  • Saint-Jacques
  • Denfert-Rochereau
  • Glacière

Bus stations close to Gustave Roussy:

  • Arago - Santé
  • Arago - Saint Jacques
  • Port Royal - Saint-Jacques

RER stations close to Gustave Roussy:

  • Port Royal

Related Routes

By RER and metro

To get from Saint-Germain-En-Laye to Gustave Roussy in Paris, take the A RER from Saint-Germain-En-Laye station to Charles de Gaulle Etoile station. Next, take the 6 metro from Charles de Gaulle Etoile station to Saint-Jacques station. The total trip duration for this route is approximately 57 min.

57min
RER - A
RER - A
Metro - 6
Metro - 6
Walk to Gustave Roussy
Leaves from Saint-Germain-En-Laye

Step by Step

  • 1
    Start from RER station
    Start from RER station
    Saint-Germain-En-Laye
  • 2
    RER - A
    Wait for RER
    A
    Boissy-Saint-Léger
  • 3
    Ride to RER station
    Ride to RER station
    Charles de Gaulle Etoile
    23 min
  • 4
    Metro - 6
    Wait for metro
    6
    Nation
  • 5
    Ride to metro station
    Ride to metro station
    Saint-Jacques
    18 min
  • 6
    Walk to Gustave Roussy
    Walk to
    Gustave Roussy
    Rue Méchain
    540 m • 7 min
*Duration based on 8am traffic

Questions & Answers

  • What is the fastest way to get from Saint-Germain-En-Laye to Gustave Roussy?

    The fastest way takes 50 minutes, using Bus line A, Bus line B.

  • What is the alternative route to get from Saint-Germain-En-Laye to Gustave Roussy?

    The alternative route takes 57 minutes, using Bus line A, Bus line 6.

  • Is there a direct RER between Saint-Germain-En-Laye and Gustave Roussy?

    No, you’ll have to take 2 RER lines in total. The total travelling time is 50 min.

  • Which RER line goes from Saint-Germain-En-Laye to Gustave Roussy?

    The A RER line goes from Boissy-Saint-Léger station near Saint-Germain-En-Laye in Saint-Germain-En-Laye to Châtelet Les Halles station. From there you’ll have to take one RER line till Châtelet Les Halles station near Gustave Roussy in Paris.

  • How long does it take to travel from Saint-Germain-En-Laye to Gustave Roussy by RER?

    The total travel time between Saint-Germain-En-Laye in Saint-Germain-En-Laye and Gustave Roussy in Paris by RER is about 50 min.

  • Where do I get on the RER near Saint-Germain-En-Laye to get to Gustave Roussy?

    Get on the A RER from the Boissy-Saint-Léger station near Saint-Germain-En-Laye in Saint-Germain-En-Laye.

  • Where do I get off the RER when travelling between Saint-Germain-En-Laye and Gustave Roussy?

    Get off the RER at the Châtelet Les Halles station, which is closest to Gustave Roussy in Paris.

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