Rialto to Costa Mesa Buses

Rialto to Costa Mesa buses

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Trip Overview

The average bus between Rialto and Costa Mesa takes 4h 10m and the fastest bus takes 3h 18m. The bus service runs several times per day from Rialto to Costa Mesa. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.

4h 10m
Duration: 70 mi
Distance: $8
Average price: Every 3 hours
Frequency

Bus, line 43 bus

best

Take the bus from San Bernardino to Harbor + Katellabus 200
Take the bus from Harbor-Katella to Harbor-19Thbus 43

4h 31m

$5–9

Rialto to Costa Mesa bus times

Buses run every 3 hours between Rialto and Costa Mesa. The earliest departure is at 5:19 AM in the morning, and the last departure from Rialto is at 11:06 PM which arrives into Costa Mesa at 6:11 AM. All services require a transfer at San Bernardino and take an average of 4h 10m. The schedules shown below are for the next available departures.

Departing Saturday, October 10, 2026

11:47 AM → 3:48 PM
4h 1m • 2 changes
1:47 PM → 5:18 PM
3h 31m • 2 changes
2:47 PM → 6:42 PM
3h 55m • 2 changes
5:06 PM → 8:31 PM
3h 25m • 2 changes
Show more

Departing Sunday, October 11, 2026

7:03 PM → 4:51 AM
Arrives next day
9h 48m • 2 changes
8:28 PM → 6:11 AM
Arrives next day
9h 43m • 2 changes

Departing Monday, October 12, 2026

5:19 AM → 9:44 AM
4h 25m • 2 changes
6:31 AM → 10:24 AM
3h 53m • 2 changes
7:40 AM → 11:24 AM
3h 44m • 2 changes
8:55 AM → 12:48 PM
3h 53m • 2 changes
Show more

Departing Tuesday, October 13, 2026

5:19 AM → 9:44 AM
4h 25m • 2 changes
6:31 AM → 10:24 AM
3h 53m • 2 changes
7:40 AM → 11:24 AM
3h 44m • 2 changes
8:55 AM → 12:48 PM
3h 53m • 2 changes
Show more

Departing Wednesday, October 14, 2026

5:19 AM → 9:44 AM
4h 25m • 2 changes
6:31 AM → 10:24 AM
3h 53m • 2 changes
7:40 AM → 11:24 AM
3h 44m • 2 changes
8:55 AM → 12:48 PM
3h 53m • 2 changes
Show more

Departing Thursday, October 15, 2026

5:19 AM → 9:44 AM
4h 25m • 2 changes
6:31 AM → 10:24 AM
3h 53m • 2 changes
7:40 AM → 11:24 AM
3h 44m • 2 changes
8:55 AM → 12:48 PM
3h 53m • 2 changes
Show more

Frequently asked questions

Want to know about travelling from Rialto to Costa Mesa? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.

Trip Overview

Bus, line 43 bus

Rialto to Costa Mesa bus times

Departing Saturday, October 10, 2026

11:47 AM → 3:48 PM

1:47 PM → 5:18 PM

2:47 PM → 6:42 PM

5:06 PM → 8:31 PM

Departing Sunday, October 11, 2026

7:03 PM → 4:51 AM
Arrives next day

8:28 PM → 6:11 AM
Arrives next day

Departing Monday, October 12, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Departing Tuesday, October 13, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Departing Wednesday, October 14, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Departing Thursday, October 15, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Frequently asked questions

What companies run services between Rialto, CA, USA and Costa Mesa, CA, USA?

Bus from San Bernardino to Harbor + Katella

Rialto to Costa Mesa buses

Find Transport to Costa Mesa

Trip Overview

Bus, line 43 bus

Rialto to Costa Mesa bus times

Departing Saturday, October 10, 2026

11:47 AM → 3:48 PM

1:47 PM → 5:18 PM

2:47 PM → 6:42 PM

5:06 PM → 8:31 PM

Departing Sunday, October 11, 2026

7:03 PM → 4:51 AMArrives next day

8:28 PM → 6:11 AMArrives next day

Departing Monday, October 12, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Departing Tuesday, October 13, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Departing Wednesday, October 14, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Departing Thursday, October 15, 2026

5:19 AM → 9:44 AM

6:31 AM → 10:24 AM

7:40 AM → 11:24 AM

8:55 AM → 12:48 PM

Frequently asked questions

What companies run services between Rialto, CA, USA and Costa Mesa, CA, USA?

Bus from San Bernardino to Harbor + Katella

Bus trips from Rialto

Bus trips to Costa Mesa

Alternative transport options

7:03 PM → 4:51 AM
Arrives next day

8:28 PM → 6:11 AM
Arrives next day