$145 Find Cheap Flights from Denver to San Luis Obispo - Compare and Save

Among airlines operating Denver to San Luis Obispo flights:

• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only United Airlines operates flights between Denver and San Luis Obispo.

Flights from Denver to San Luis Obispo usually depart from Denver Intl (DEN) and arrive at San Luis Obispo County (SBP).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Denver to San Luis Obispo:

• Economy Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $319 round-trip via Los Angeles Los Angeles (LAX), compared to $400 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A320-100/200 family is used most often on this route, operated mainly by United Airlines and JetBlue. Other aircraft seen on the route include Airbus A319 variants.

One-stop flights from Denver to San Luis Obispo most commonly connect through:

• Phoenix Sky Harbor Intl (PHX) - 56% of one-stop connections
• San Diego (SAN) - 30% of one-stop connections
• Los Angeles Los Angeles (LAX) - 9% of one-stop connections
• San Francisco (SFO) - 5% of one-stop connections

Phoenix Sky Harbor Intl (PHX) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 28% on the Denver to San Luis Obispo route. Tuesday is the cheapest departure day at $314 round-trip on average, while Sunday is the most expensive at $432, a difference of $118. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Denver to San Luis Obispo flights, with 50% of flights leaving in that window. Evening departures account for 50%, afternoon flights for 0%, and night flights for 0%.

These are the earliest and latest flight times available from Denver to San Luis Obispo:

• Earliest: departs at 11:27 am and lands at 2:14 pm
• Latest: departs at 7:20 pm and lands at 10:07 pm.

The flight takes about 2h 47m.

Last-minute fares on this route - booked within 2 weeks of departure - run 25% above the route average of $385. Book 26 weeks before departure for the lowest fares.

A nonstop flight from Denver to San Luis Obispo takes 2h 47m, covering 929 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $279 to $1,297. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Denver to San Luis Obispo are currently lower than usual. Average one-way flight prices are about $228, which is 14% below the typical average for this route.

Flying via Phoenix Sky Harbor Intl (PHX) gives the shortest average 1-stop total travel time at 5h 04m, compared with 5h 19m via San Diego (SAN) and 5h 57m via San Francisco (SFO).

San Luis Obispo is 1 hour behind Denver (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

Round-trip flights from Denver to San Luis Obispo range from $299 to $483, with an average of $385 over the past 12 months. Anything below $299 counts as a good deal.