flight_takeoff DEN → SAN

Cheap Flights from Denver to San Diego

Compare fares on the short-haul flight from Denver to San Diego — a southwestbound route of about 852 miles, typically flown nonstop in around 2h 10m.

straighten

Distance

852 mi

1,371 km

schedule

Est. flight time

2h 10m

nonstop

flight

Nonstop service

Available

3 carriers

language

Time difference

1 hour behind

San Diego

Flying from Denver to San Diego

Flights from Denver International Airport (DEN) to San Diego International Airport (SAN) cover roughly 852 miles (1,371 km) on a southwestbound heading, a nonstop flight of about 2h 10m. The route crosses 1 time zone — San Diego is 1 hour behind Denver. It's served by 3 airlines.

Lets Fly Travel compares live fares across hundreds of airlines to find the best deal on this route — and every booking is reviewed by a real travel agent before ticketing.

Airlines on this route

Carriers that have operated nonstop service between DEN and SAN include:

flightFrontier Airlines flightSouthwest Airlines flightUnited Airlines

Airline availability and fares change over time — search your dates for current options.

Best time to fly Denver to San Diego

Fare patterns and travel conditions vary by season. Here's what to expect on the DEN–SAN route throughout the year.

Jan–Feb

Winter weekdays on the Denver–San Diego route are often lightly booked — a good window for budget-conscious travelers.

Mar–May

Spring demand picks up, especially around school break periods. Searching Tuesday–Thursday departures usually surfaces the cheapest fares.

Jun–Aug

Summer travel is busy on this short-haul flight. Booking 3–5 weeks out and avoiding Friday/Sunday departures helps keep costs down.

Sep–Oct

Post-summer shoulder period often brings the lowest fares on the DEN–SAN route. Weather is usually still pleasant at both ends.

Nov–Dec

Holiday travel between Denver and San Diego books up fast. Set a fare alert and book as soon as you confirm your plans.

flight_land Arriving at

San Diego International Airport

San Diego is served by San Diego International Airport (IATA: SAN , ICAO: KSAN). Allow time for baggage claim and ground transportation after landing.

IATA Code

SAN

Flight Time

~2h 10m

Distance

852 mi

tips_and_updates Arrival tips

›Check in online to save time at the airport.
›Arrive 2 hours before departure.
›Compare fares across several nearby dates for best value.

Denver to San Diego — FAQs

How long is the flight from Denver to San Diego? expand_more

A nonstop flight from Denver (DEN) to San Diego (SAN) takes approximately 2h 10m, covering a distance of about 852 miles (1371 km). Actual flight time varies with aircraft, routing and winds.

Which airlines fly from Denver to San Diego? expand_more

Airlines that have operated nonstop service on the DEN–SAN route include Frontier Airlines, Southwest Airlines, United Airlines. Use our search to compare current carriers, schedules and fares.

Is there a nonstop flight from Denver to San Diego? expand_more

Yes. The DEN–SAN route has nonstop service. Nonstop availability can vary by season and day of week, so check live results for your dates.

How far is San Diego from Denver? expand_more

The distance from Denver (DEN) to San Diego (SAN) is about 852 miles (1371 km) as the crow flies.

What is the time difference between Denver and San Diego? expand_more

San Diego is 1 hour behind Denver. Factor the time change into your arrival and connection planning.

When is the best time to book flights from Denver to San Diego? expand_more

For domestic routes like Denver to San Diego, booking about 1–3 months ahead and choosing mid-week departures usually finds the best prices. Avoid peak Friday and Sunday travel where possible.