As you can see from the above map, the GO C Paris goes from the Gare de Pont de Rungis, which is listed on the RER C line map as the Pont de Rungis stop. From the train station this shuttle bus service then goes to Terminal 1-2-3 of Orly Airport before then travelling on to Terminal 4 of Orly Airport.
GO C Paris shuttle bus map formats available:
GO C Paris shuttle bus map - PDF (standard quality - 0.576 MB)
GO C Paris shuttle bus map - PDF (high quality - 1.766 MB)
GO C Paris shuttle bus map - Image (standard quality - 0.678 MB)
GO C Paris shuttle bus map - Image (high quality - 1.283 MB)
You may also be pleased to know that GO C Paris runs seven days of the week including on public holidays from 4:43am to 11:16pm at approximately 15 minute intervals, with the departure times for each point listed separately on the timetables.
The RER C line has stops at popular tourist attractions in Paris including the Champ de Mars, Eiffel Tower stop and tickets can be purchased for the GO C bus in conjunction with an RER ticket, which works out slightly cheaper than if buying tickets individually. Just remember that you need a ticket covering Zone 4 to reach Orly Airport, although the Paris Visite ticket covers to Zone 5.
GO C Paris shuttle bus timetables and transport connections
Alternatively, you can also purchase a ticket directly on the GO C shuttle bus, which is just slightly more than you would pay for a Metro Line T+ ticket in Paris itself, so it is still an easy way to travel without having to pre-book. In addition, if you want to get the RER C to Chateau Versailles rather than to Paris from the airport, then this bus connection would also be the easiest option.
GO C Paris shuttle bus line timetables:
GO C Paris bus timetables - PDF (size - 2.098 MB)
GO C Paris bus timetables - Image (size - 1.130 MB)
Other Paris bus line maps with stops and connections
Central Bus Lines 01-09 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 100-109 110-119 120-129 130-139 140-149 150-159 160-169 170-179 180-189 190-199 200-209 210-219 220-229 230-239 240-249 250-259 260-269 270-279 280-289 290-299 300-309 310-319 320-329 330-339 340-349 350-359 360-369 370-379 380-389 390-399 400-409 420-429 430-439 440-449 450-459 460-469 470-479 480-489 490-499 500-509 510-519 520-529 530-539 540-549 550-559 560-569 570-579 580-589 590-599 700-709 Fileo Buses CDG1 GO C Orly Shuttle Bus R4 Bus T'Bus CDG1 TVM Bus TZen Buses - Noctilien Night Buses