San Diego to Boulder by bus: 1,337 km

A coach takes about 24 h 14 min including stops, over roughly 1,631 km (1,014 mi) of road.

The two ends, side by side
	San Diego	Boulder
Country	United States	United States
Population	1.4 million	106,803
Elevation	20 m (66 ft)	1,630 m (5,348 ft)
Time now	UTC-7 (America/Los_Angeles)	UTC-6 (America/Denver)
Postal codes	92101–92199	80301–80314

Clocks in Boulder are 1 h ahead of San Diego right now, so a 24 h 14 min journey lands 25 h 14 min later by the destination clock.

Where to book buses from San Diego to Boulder

BusbudIntercity coach tickets in North America, Europe and Latin America, including the regional Canadian carriers that sell nowhere else together.Find bus routes on Busbud

FlixBusThe widest single-brand network in Europe and North America, where it also operates Greyhound. Refunds come back as vouchers, not cash.Search coach routes on FlixBus

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Staying in Boulder

Live rooms and prices for Boulder are in the search below.

Book a hotel in Boulder

Live rooms and prices from our booking partner, booked and paid for here. Free cancellation is marked where it applies.

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Common questions

How far is Boulder from San Diego?

1,337 km (831 mi) in a straight line, north-east of San Diego; by road roughly 1,631 km (1,014 mi).

How long does it take to get from San Diego to Boulder by bus?

About 24 h 14 min, estimated from distance and typical speeds. Timetables and traffic decide the real figure.

Is there a time difference between San Diego and Boulder?

Boulder is 1 h ahead at the moment (America/Denver against America/Los_Angeles).

Where these facts come from

GeoNames (CC BY 4.0): population, elevation, time zone, postal codes
Wikidata (CC0): area, sister cities, visitor numbers, heritage listings, stations and ports
OurAirports (public domain): airports, runways
Natural Earth (public domain): map outlines

Data compiled 13 September 2026. Hotel figures are from our booking partner’s catalogue on that date. Journey times on this page are estimates from distance, not timetables; check the operator before you rely on one.