Bus Tickets from Washington, DC, US to Ontario, CA

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TodayAug 31
TomorrowSep 1
from US$241
TueSep 2
WedSep 3
ThuSep 4
FriSep 5
SatSep 6
SunSep 7

Cheap buses leaving tomorrow

One passenger / one way

  • This trip is recommended because it is the: Cheapest
    Departure time: September 1 at
    Departure city: Washington
    Departure location: Arlington (Rosslyn), 1001 Wilson Blvd.
    Arrival time: September 4 at
    Destination city: Ontario
    Destination location: Montclair / Ontario / Claremont
    Operated by: FlixBus + Greyhound Lines, Inc.
    FlixBus + Greyhound Lines, Inc.
    Vehicle: BusDuration:
  • This trip is recommended because it is the: Fastest
    Departure time: September 1 at
    Departure city: Washington
    Departure location: Union Station
    Arrival time: September 3 at
    Destination city: Ontario
    Destination location: Montclair / Ontario / Claremont
    Operated by: Greyhound Lines, Inc.Greyhound Lines, Inc.
    Vehicle: BusDuration:
  • Departure time: September 1 at
    Departure city: Washington
    Departure location: Union Station
    Arrival time: September 4 at
    Destination city: Ontario
    Destination location: Montclair (Ontario)
    Operated by: FlixBus + Greyhound Lines, Inc.
    FlixBus + Greyhound Lines, Inc.
    Vehicle: BusDuration:
  • Departure time: September 1 at
    Departure city: Washington
    Departure location: Union Station
    Arrival time: September 3 at
    Destination city: Ontario
    Destination location: Montclair / Ontario / Claremont
    Operated by: Greyhound Lines, Inc.Greyhound Lines, Inc.
    Vehicle: BusDuration:
  • Departure time: September 1 at
    Departure city: Washington
    Departure location: Union Station
    Arrival time: September 5 at
    Destination city: Ontario
    Destination location: Montclair (Ontario)
    Operated by: Greyhound Lines, Inc. + FlixBus
    Greyhound Lines, Inc. + FlixBus
    Vehicle: BusDuration:

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Compare 2 ways to go from Washington to Ontario

Bus
Average PriceUS$224 - US$495Average Duration3d 1h
91kg CO₂e5 out of 5 stars
CheapestFastestMost eco-friendly
Train
Average PriceUS$317 - US$1,810Average Duration3d 12h
332kg CO₂e1 out of 5 stars
busbud logoBusbud recommends taking the bus from Washington to Ontario

Among the sustainable travel choices, the bus stands out as a good way to reach Ontario. The journey takes about 3 days, 1 hour, and with fares starting at just US$224, it presents an excellent value for a comfortable ride.

10bus per day
3d 1hAverage Duration
US$224Cheapest ticket
91kgCO₂ emissions

Bus Washington, DC, US to Ontario, CA: Trip Overview

Average Ticket PriceUS$274
Average Bus Trip Duration3d 1h
Number of daily buses10
Earliest bus departure12:40am
Distance3641 km
Latest bus departure11:55pm

Washington to Ontario Bus

Busbud shows you the best bus ticket fares and bus schedules so you can easily plan and book a trip by bus from Washington to Ontario.

Bus service from Washington to Ontario will be provided by the most trusted bus companies.

From cheap bus tickets to more luxurious buses travelling from Washington to Ontario, we offer a wide range of bus services to best suit your needs depending on how much your budget is.

Frequently asked questions on the trip Washington, DC, US - Ontario, CA

  1. How far is Washington from Ontario?

    Washington and Ontario are 3645 km (2260 miles) apart.

  2. What are the departure and arrival locations for buses traveling from Washington to Ontario?

    Buses departing from Union Station in Washington will take you to Ontario California Bus Stop Carl's Jr & Teriyaki House in Ontario.

Find cheapest prices for buses

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

Best price found
08-29
No data
08-30
US$233
Today
No data
09-01
US$243
09-02
No data
09-03
No data
09-04
No data
09-05
US$234
busbud logoThe cheapest trip from Washington, DC, US to Ontario, CA was searched and found on Aug 30, 2025 with a price of US$233

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

You can expect to pay from US$233 to US$278 for a bus ticket from Washington, DC, US to Ontario, CA based on the last 2 days. You can expect to find the cheapest price for the trip at US$234 which is on 2025-09-05.

About Bus Travel

Bus Travel Tips

If you're abroad, study some local language. Not only could it get you out of a pickle during your bus trip from Washington to Ontario but it'll also be endearing to native speakers who will surely appreciate your effort.

Much more than a mere vehicle taking you from Washington to Ontario, riding the bus will expose you to some of the most stunning panoramas while enroute to your final bus stop.

Taking the bus creates the smallest carbon footprint compared to other modes of transport. Not to mention that buses will allow you to discover scenic gems from Washington to Ontario that are otherwise impossible to come by with a plane.

Create your own real life musical score by curating a personalized bus travel playlist - the perfect accompaniment to your bus ride from Washington to Ontario.

Did you know?

The average number of passengers on a coach bus is 32 meaning that a bus could replace a minimum of at least 30 cars!

Did you know some bus companies in Germany offer to their passenger low-costs snacks and regional beer based on their destination? Prosit!

One of the longest bus route in the world goes all the way from Ontario to Alberta in Canada (with the same bus). This trip is 3,435 km or 2,135 miles long and the price is a bit under $100.

What's the cheapest way to go from Washington, DC, US to Ontario, CA?

busbud logoThe bus is the cheapest travel choice for this destination

Will you be returning to Washington, DC, US by bus?

Bus from Ontario, CA to Washington, DC, US

You can also go to Ontario, CA by train

Train from Washington, DC, US to Ontario, CA

Why choose Busbud?

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