Bus from Seattle to Ontario, CA: Tickets & Timetables

Previously seen journeys

Next departures from Seattle to Ontario on 7 December
Operated byVehicle typeDeparture timeDeparture locationTrip durationArrival timeArrival locationRecommendedPrice and booking link
FlixBus + Greyhound
Bus
Greyhound Station
Montclair (Ontario)No tags
Greyhound + FlixBus
Bus
Greyhound Station
Montclair (Ontario)No tags
Greyhound + FlixBus
Bus
Seattle–Tacoma Int'l Airport (SEA)
Montclair (Ontario)No tags
Greyhound + FlixBus
Bus
Seattle–Tacoma Int'l Airport (SEA)
Montclair / Ontario / ClaremontNo tags
Greyhound + FlixBus
Bus
Seattle–Tacoma Int'l Airport (SEA)
Montclair Transcenter (Ontario / Montclair / Claremont)No tags

Compare 2 ways to travel from Seattle 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, 9 hours 40 minutes and with fares starting at just £89, it presents an excellent value for a comfortable ride.

5bus per day
1d 9hAverage duration
966 milesDistance
39kgCO₂ emissions
Average price£89 - £280Average duration1d 9h
39kg CO₂e
Average price£245 - £245Average duration1d 12h
142kg CO₂e

Frequently asked questions about travelling by bus from Seattle to Ontario, CA

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

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

    The cheapest coach tickets from Seattle to Ontario start from £89. The average price for this route is around £141. 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 journey from Seattle to Ontario?

    The average bus journey time from Seattle to Ontario is 1d 9h, covering a distance of 966 miles. The fastest bus can take you there in 1d 2h and is operated by Greyhound.

  3. Which bus companies service the Seattle to Ontario route?

    Several major bus companies operate on this route with 5 buses available per day.

  4. What is the earliest and latest departure time for the bus from Seattle to Ontario?

    The earliest bus departs from Seattle to Ontario at 14:45. And the latest bus departs at 22:50.

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

    A bus journey from Seattle to Ontario produces an estimated 39 kg of CO₂, making it a highly eco-friendly choice 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
05/12
£134
06/12
No data
Today
No data
08/12
£139
09/12
No data
10/12
No data
11/12
No data
12/12
No data
busbud logoThe cheapest trip from Seattle to Ontario, CA was searched and found on 5 Dec 2025 with a price of £134

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

You can expect to pay from £134 to £139 for a bus ticket from Seattle to Ontario, CA based on the last 2 days. You can expect to find the cheapest price for the trip at £139, which is on 2025-12-08.

What's the cheapest way to go from Seattle to Ontario, CA?

busbud logoThe bus is the cheapest travel choice for this destination

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