Bus from St. Louis to Ontario, CA: Tickets & Schedules

Previously seen trips

Next departures for St. Louis to Ontario on January 14
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
Greyhound + FlixBus
Bus
Gateway Station
Montclair (Ontario)No tags
FlixBus + Greyhound
Bus
St Louis, MO
Montclair (Ontario)No tags
Greyhound + FlixBus
Bus
Gateway Station
Montclair (Ontario)No tags
FlixBus + Greyhound
Bus
Gateway Station
Montclair (Ontario)No tags
FlixBus + Greyhound
Bus
Gateway Station
Montclair (Ontario)No tags

Compare 2 ways to go from St. Louis to Ontario

We recommend taking the bus

Among the sustainable travel choices, the Bus stands out as a good way to reach Ontario. The journey takes about 1 day, 20 hours 25 minutes, and with fares starting at just $344, it presents an excellent value for a comfortable ride.

3bus per day
1d 20hAverage Duration
2504 kmDistance
63kgCO₂ emissions
Average Price$344 - $569Average Duration1d 20h
63kg CO₂e
Average Price$344 - $1,736Average Duration2d 10h
228kg CO₂e

Frequently asked questions about travelling from St. Louis to Ontario, CA by bus

Please note that schedules, routes, or operator details shown here may be updated or vary at the time of your trip.

  1. How much is the bus ticket from St. Louis to Ontario?

    The cheapest bus tickets from St. Louis to Ontario start from $344. The average price for this route is around $477. Busbud recommends that you book your tickets in advance for a better chance to get the lowest possible price.

  2. How long is the bus ride from St. Louis to Ontario?

    The average bus travel time from St. Louis to Ontario is 1d 20h, covering a distance of 2504 km. The quickest bus can get you there in 1d 15h and is operated by Greyhound.

  3. Which bus companies service the St. Louis to Ontario route?

    Several major bus companies operate on this route with 3 buses available per day.

  4. What are the earliest and latest departure times for the bus from St. Louis to Ontario?

    The earliest bus departs from St. Louis to Ontario at 1:20am. And the latest bus departs at 4:30pm.

  5. What are the CO₂ emissions for the bus trip from St. Louis to Ontario?

    A bus trip from St. Louis to Ontario generates an estimated 63 kg of CO₂, making it a highly eco-friendly travel option and a mode of travel recommended by Busbud.

Find cheapest prices for buses

Price is for a one-way ticket for one passenger and based on past searches.

Best price found
01-11
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01-12
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Today
$333
01-14
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01-15
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01-16
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01-17
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01-18
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busbud logoThe cheapest trip from St. Louis to Ontario, CA was searched and found on Jan 13, 2026 with a price of $333

To save money and be sure you have the best seat, it's a good idea to buy your bus tickets from St. Louis to Ontario, CA, as early as possible.

What's the cheapest way to go from St. Louis to Ontario, CA?

busbud logoThe Bus is the cheapest travel choice for this destination

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