- Must visit
Saint Louis Art Museum
Major fine arts museum in Forest Park with collections spanning ancient to modern works. A top cultural stop known for strong European, American, and global holdings.
Omio recommends booking the flight as it is the most popular option from Ontario, CA to St. Louis, MO among Omio's users. If you are prioritising price take the bus with prices starting from $142. For those with little time consider booking a flight which can get you there in 21h 55m. The ticket price range depends on the travel mode: a bus costs an average of $142, and a train costs an average of $307.
Distance: 1554 miles (2501 km)
| Bus | Most popular Flight | Train | Driving |
|---|---|---|---|
$186 Average price Cheapest | $255 Average price | $307 Average price | $359 Average price (fuel + tolls) |
40h 5m Average total duration 39h 35m Onboard + 30m Additional time* | 24h 55m Average total duration Fastest 21h 55m Onboard + 3h 0m Additional time* | 55h 6m Average total duration 54h 36m Onboard + 30m Additional time* | 25h 59m Average total duration (door-to-door) |
Direct Options | Direct Options | Direct Options | Direct Options |
This is compared to other travel options from Ontario, CA to St. Louis, MO:
A bus is $69 (€57) less than a flight for this route with tickets for a flight from Ontario, CA to St. Louis, MO costing on average $255 (€209).
A bus is $122 (€100) less than a train for this route with tickets for a train from Ontario, CA to St. Louis, MO costing on average $307 (€252).
Other travel options to St. Louis, MO take longer:
Bus takes on average 39h 35m.
Train takes on average 54h 36m.
You'll arrive about {timeSavings} sooner ({durationInMinutes} by bus vs {drivingDurationInMinutes} by car) and save roughly {savingsAmount} compared to fuel and tolls ({cheapestPrice} vs {drivingPriceInCents}). You also skip the drive itself — no traffic stress, no parking, and you can use the time to work, nap, or catch up on a series with the onboard Wi-Fi.
Direct coaches are operated by {directProviders}.
Driving is still worth considering if you're travelling with bulky luggage, need flexibility on departure times, or plan to stop along the way.
| Operator | Departure Time | Arrival Time | Duration | Departure days | Cheapest price |
|---|---|---|---|---|---|
Operator Greyhound | Departure Time 02:55AM | Arrival Time 06:55PM | Duration 40h00 | Departure days Thu | Cheapest price $230 |
Operator Greyhound | Departure Time 09:00PM | Arrival Time 12:10PM | Duration 39h10 | Departure days Mon | Cheapest price $142 |
Compare train, bus, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Buses from Ontario, CA to St. Louis, MO run on average 6 times per day, taking around 39h 35m. Cheap bus tickets for this journey start at $142 (€116) if you book in advance.
There are 1 buses per day. The earliest bus runs at 01:20, the last at 21:05. The fastest bus covers the 1554 miles (2501 km) distance in 39h 10m.
Distance 1554 miles (2501 km) |
Average bus duration 39h 35m |
Cheapest ticket price $142 (€116) |
Buses per day 6 |
Direct buses 1 |
Fastest bus 39h 10m |
First bus 1:20 AM |
Last bus 9:05 PM |
Cheapest Month Oct |
Cheapest Day Sat |
High Season Jan - Mar |
Low Season Jul - Sep |
Best time to book 63 days |
Discover the best of St. Louis — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect St. Louis trip today.
Major fine arts museum in Forest Park with collections spanning ancient to modern works. A top cultural stop known for strong European, American, and global holdings.
Highly original museum and artist-built environment with architectural salvage, tunnels, slides, and installations. One of the city’s most distinctive and widely shared attractions.
History museum in Forest Park covering St. Louis, Missouri, and regional stories through permanent and rotating exhibitions. Well suited for visitors wanting local context.
One of the largest urban parks in the United States, home to major institutions, lakes, trails, and broad green spaces. Essential for first-time visitors.
Riverfront grounds around the Arch with lawns, paths, and strong skyline views, useful for walking and iconic photos.
Lively entertainment and walking district known for music venues, public art, shops, and the St. Louis Walk of Fame.
A local pizza style with a very thin, cracker-like crust, cut into squares and traditionally topped with Provel cheese. It is one of the city’s signature foods.
Breaded and fried meat- or cheese-filled ravioli, usually served with marinara sauce. This St. Louis Italian-American specialty is strongly associated with The Hill neighborhood.
A rich, dense cake with a buttery base and sweet cream cheese-like topping. It is one of the most famous desserts identified with St. Louis.
A long-established Italian restaurant on The Hill, known for classic red-sauce dishes, toasted ravioli, and an old-school fine dining feel.
An iconic St. Louis custard stand famous for thick concretes and nostalgic roadside charm. A must for trying the city’s best-known frozen treat.
A respected contemporary American restaurant known for refined cooking, strong wine service, and a polished neighborhood setting.
Generally moderate by U.S. standards. Hotels and attractions are often reasonable, while dining costs vary by neighborhood and venue.
Tip 18-20% at restaurants. Tip USD 1-2 per drink at bars, round up taxis, and tip hotel staff and delivery drivers.
Find answers to the most common questions about traveling from Ontario, CA to St. Louis, MO by bus. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest bus, the cheapest option, or tips for making the most of your visit at St. Louis, MO, this guide helps you travel smarter and with confidence.

Most Ontario, CA to St. Louis, MO buses use the Montclair, Richton Street (Montclair Transcenter Paking) to St. Louis, S 15th St (Civic center) station pair, with some services arriving at St. Louis, Lambert International Airport. Use this guide to compare Ontario, CA and St. Louis, MO bus stations on this route, check city-centre transport, alongside checking practicalities like bus station facilities and services.
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