£59 Find Cheap Flights from San Diego to Denver – Compare and Save

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

• Earliest: departs at 06:15 and lands at 08:44
• Latest: departs at 21:45 and lands at 00:14.

The flight takes about 2h 29m.

Only Economy class is available on flights from San Diego to Denver.

A direct flight from San Diego to Denver takes 2h 29m, covering 852 miles.

No, a passport is not required for this domestic route, but you will need another form of identification, such as a driving licence.

Return flights from San Diego to Denver range from £90 to £211, with an average of £145 over the past 12 months. Anything below £90 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 65% above the £145 route average. Book 8 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £96 return via Las Vegas Harry Reid Intl (LAS), compared with £145 for direct.

United Airlines is slightly above the route average for timely arrivals, while Frontier has a lower on-time arrival rate. On-time arrival rates on San Diego to Denver flights are:

• United Airlines: 90% on time
• Frontier: 88% on time
• Alaska Airlines: 85% on time

On average, flights on this route are punctual 84% of the time.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £30–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Southwest and Alaska Airlines. Other aircraft seen on the route include Airbus A321neo variants.

Morning is the busiest departure period on San Diego to Denver flights, with 44% leaving in that window. Afternoon departures account for 38%, Evening flights for 18%, and Night flights for 0%.

Two airlines offer in-flight Wi-Fi on San Diego to Denver flights:

• Alaska Airlines
• JetBlue

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

One-way fares from San Diego to Denver are currently lower than usual. Average one-way flight prices are about £79, which is 27% below the typical average for this route.

Denver Intl Airport (DEN) hosts 5 major car hire companies, with daily rates starting from around £42 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Ace
• Europcar
• NU Car
• Hertz

Flights from San Diego to Denver usually depart from San Diego (SAN) and arrive at Denver Intl (DEN).

Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the San Diego to Denver route, 16% of flights were delayed in the past three months, with delays averaging 2h 25m.

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

• Phoenix Sky Harbor Intl (PHX) – 60% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) – 20% of one-stop connections
• Salt Lake City (SLC) – 20% of one-stop connections

Yes. Flexible dates can save you up to 31% on flights from San Diego to Denver. Saturday is the cheapest departure day at £132 return on average, while Monday is the most expensive at £191, a difference of £59.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

4 airlines operate flights between San Diego and Denver. The airlines offering direct flights on this route include:

• Southwest
• United Airlines
• Alaska Airlines
• Frontier

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time of 4h 35m, compared to 4h 49m via Phoenix Sky Harbor Intl (PHX) and 6h 13m via Las Vegas Harry Reid Intl (LAS).

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

Some of the most popular sights in Denver are Colorado Convention Center, Hyatt Regency Denver at Colorado Convention Center, and Coors Field. These are among the most viewed places in Denver on KAYAK.

Among airlines operating San Diego to Denver flights:

• Frontier: offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• Alaska Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

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

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

• Frontier: a cabin bag and a checked bag in Economy class
• United Airlines: a cabin bag and a checked bag in Economy class
• Alaska Airlines: a cabin bag and a checked bag in Economy class

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

Frontier Airlines offers nonstop flights from San Diego International Airport to Denver International Airport in Denver. Other airlines on this route include United Airlines and Southwest Airlines, which offer a fast way to travel from San Diego to Denver.

The airport offers different accessibility services located throughout the airport to assist travelers with mobility impairments. Services under this category include visual paging monitors, TDD telephones, and a courtesy cart run by Volunteer Airport Ambassadors, located conveniently throughout the airport. Also, you’ll find the Harbor Police Officers, who assist travelers with special needs.

San Diego International Airport is a smoke-free facility. You’re only permitted to smoke in a designated area away from the terminals. You can use ashtrays located in all smoking areas.

The SkyRide bus and A Line rail system offer affordable means of transport from Denver International Airport to downtown Denver and nearby towns. You can also use an Uber from the airport or travel via the shuttle service to nearby cities like Welby, Aurora, Federal Heights, and Commerce City. If your friends or family will pick you up, make sure they can find a good parking spot as curbside parking is prohibited.

Guests can use different amenities and facilities when they arrive at the airport. These include free Wi-Fi, religious facilities open 24h a day, and pet relief areas near gates A, B, and C. If you want to nurse your child, there are three nursing rooms located at each concourse.