Cheap Flights from San Diego, CA to Denver, CO from $99
On Cheapflightsplus.com you will find 6 direct and 85 connecting flights from San Diego to Denver. You can compare airfare deals from 6 airlines and multiple travel sites from $99, book and save on cheap plane tickets and last minute offers. Also check out SAN-DEN flight schedule to find best flight time, convenient departure and arrival airports.
Flight Information
Below we will explain in detail what the flights cost on the destination from San Diego to Denver depends on and how to choose the most interesting flight option for you.
Distance between San Diego and Denver is 1371 miles. Time difference between the cities is 1h. Airplanes depart 06:15 to 22:30 from 11 San Diego airport and arrive 06:15 to 22:30 to 2 Denver airports. Average flight time is 2h 28m.
- The fastest flight 2h 27m
- Average flight time 2h 28m
- The earliest flight 06:15
- The latest flight 22:30
- Distance 852 ml
Best Flights from San Diego to Denver Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $109 | 06:45 San Diego San Diego | 10:13 Denver Denver International | 2h 28m | United Airlines | UA2270 |
| from $133 | 12:45 San Diego San Diego | 16:13 Denver Denver International | 2h 28m | United Airlines | UA1220 |
| from $342 | 16:03 San Diego San Diego | 19:30 Denver Denver International | 2h 27m | United Airlines | UA682 |
| from $99 | 12:04 San Diego San Diego | 23:26 Denver Denver International | 10h 22m layover 6h 39m - Salt Lake City | Frontier Airlines | F91902 F94252 |
| from $156 | 14:31 San Diego San Diego | 23:16 Denver Denver International | 7h 45m layover 4h 21m - Phoenix | Frontier Airlines | F94578 F92142 |
The cheapest months to travel to Denver are september (from 99 $), october (from 109 $), august (from 111 $).
The most expensive months are may (from 165 $), february (from 165 $), june (from 149 $).
What is the lowest airfare San Diego to Denver?
The cheapest plane ticket found by our users is $99. This airfare is for economy class on one-way F91902 flight by Frontier Airlines for September 19, 2025 which leaves San Diego in San Diego at 12:04 am and arrives at Denver Denver International at 23:26.
Flight Schedule San Diego (California) to Denver (Colorado)
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Popular Airlines on the Route
The flight San Diego — Denver is served by 6 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 11 departures per week at the price of from $ 175 . And the most expensive tickets are offered by United Airlines airline - from $ 1440.
Direct flights
There are 6 nonstop flights on the route. The fastest direct flight is UA682 by United Airlines takes 2h 27m and the cheapest is F91902 by Frontier Airlines for $109.
- UA - United Airlinesfrom $109Find
Connecting Flights
There are 85 flights with layovers on the route. The fastest connecting flight is UA5249 by United Airlines takes 4h 14m and the cheapest is F91902 by Frontier Airlines for $99.
- AS - Alaska Airlinesfrom $175Find
- F9 - Frontier Airlinesfrom $99Find
- HA - Hawaiian Airlinesfrom $341Find
- UA - United Airlinesfrom $156Find
- AM - Aeromexicofrom $496Find
- NK - Spirit Airlinesfrom $246Find
Airports
You can fly from San Diego to Denver from 11 airports (San Diego, San Diego Regional, Gillespie Field, Golden Triangle Reg., El Cajon, Lowndes County, Miramar NAS, Montgomery Field, North Island NAS, Brown Field Municipal, AFB).
San Diego airports
- San Diego-SANfrom $99Find
- San Diego Regional-USAFind
- Gillespie Field-SEEFind
- Golden Triangle Reg.-GTRFind
- El Cajon-CJNFind
- Lowndes County-UBSFind
- Miramar NAS-NKXFind
- Montgomery Field-MYFFind
- North Island NAS-NZYFind
- Brown Field Municipal-SDMFind
- AFB-CBMFind
Denver airports
- Denver International-DENFind
- Arapahoe Co-APAFind
Airplanes
There are flights to Denver from San Diego by 6 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from San Diego
You may also consider searching for discounted plane tickets to some other popular places from San Diego within United States.
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Top International Destinations from San Diego
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
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How to book a plane ticket yourself?
- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
- Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
- That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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