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How to get fromOntario to San Marcosby train (Amtrak), bus, train, tram, car, or bus (Greyhound)

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There are 5 ways to get from Ontario to San Marcos by train (Amtrak), bus, train, tram, car, or bus (Greyhound)

Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.

  1. Train

    best
    1. Take the train from Montclair to L.A. Union Stationtrain train SB Line
    2. Take the train from Los Angeles to Oceansidetrain train Pacific Surfliner
    6h 10m
    $38–81

  2. Line 59 bus, bus, line 303 bus

    cheapest
    1. Take the bus from Ring-Brea Mall to The Depot At Santa Ana Dock 3bus bus 59
    2. Take the bus from Santa Ana to Oceansidebus bus
    3. Take the bus from Oceanside Transit Center Stall 10 to Vista Transit Center Stall 5bus bus 303 / ...
    7h 28m
    $14–30

  3. Line 61 bus, line 286 bus, line 59 bus, train, tram

    1. Take the bus from Holt @ Lemon to Pomona Transit Centerbus bus 61
    2. Take the bus from Pomona Transit Center to Brea Mallbus bus 286
    3. Take the bus from Ring-Brea Mall to The Depot At Santa Ana Dock 3bus bus 59
    4. Take the train from Santa Ana to Oceansidetrain train
    5. Take the tram from Oceanside Transit Center to San Marcos Civic Center Stationtram tram
    6h 20m
    $16–30

  4. Drive 81.8 mi

    1. Drive from Ontario to San Marcoscar car 81.8 mi
    1h 24m
    $15–22

  5. Line 3 bus, train

    1. Take the bus from Amazon Eastvale to Corona Transit Centerbus bus 3
    2. Take the train from Corona - North Main to Oceansidetrain train IE-OC Line
    6h 11m
    $16–27

Ontario to San Marcos by bus, train, foot, and tram

Calendar91Weekly Services
Duration6h 10mAverage Duration
Ticket$38Cheapest Price
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Questions & Answers

Map of how to get from Ontario to San Marcos.ExpandLaunch map view
  • Distance: 139.1 mi
  • Duration: 6h 10m

What companies run services between Ontario, CA, USA and San Marcos, CA, USA?

You can take a bus from Mountain @ 5th Street to San Marcos Civic Center Station via Montclair Transit Center, Montclair, L.A. Union Station, Los Angeles, Oceanside, and Oceanside Transit Center in around 6h 10m. Alternatively, you can take a bus from Holt @ Lemon to Mission Rd & Pico Av via Pomona Transit Center, Brea Mall, Ring-Brea Mall, The Depot At Santa Ana Dock 3, Santa Ana, Oceanside, Oceanside Transit Center Stall 10, and Vista Transit Center Stall 7 in around 7h 28m.

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