Cheap Flights from Denver, CO to San Diego, CA from $35
On Cheapflightsplus.com you will find 19 direct and 303 connecting flights from Denver to San Diego. You can compare airfare deals from 7 airlines and multiple travel sites from $35, book and save on cheap plane tickets and last minute offers. Also check out DEN-SAN 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 Denver to San Diego depends on and how to choose the most interesting flight option for you.
Distance between Denver and San Diego is 1371 miles. Time difference between the cities is 1h. Airplanes depart 05:02 to 23:59 from 2 Denver airports and arrive 05:02 to 23:59 to 11 San Diego airports. Average flight time is 2h 24m.
- The fastest flight 2h 21m
- Average flight time 2h 24m
- The earliest flight 05:02
- The latest flight 23:59
- Distance 852 ml
Best Flights from Denver to San Diego Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $35 | 22:29 Denver Denver International | 23:59 San Diego San Diego | 2h 30m | Frontier Airlines | F92421 |
| from $57 | 09:44 Denver Denver International | 11:10 San Diego San Diego | 2h 26m | Frontier Airlines | F92817 |
| from $67 | 19:14 Denver Denver International | 20:38 San Diego San Diego | 2h 24m | United Airlines | UA540 |
The cheapest months to travel to San Diego are october (from 35 $), february (from 35 $), january (from 50 $).
The most expensive months are november (from 113 $), december (from 80 $), july (from 78 $).
What is the lowest airfare Denver to San Diego?
The cheapest plane ticket found by our users is $35. This airfare is for economy class on one-way F92421 flight by Frontier Airlines for October 11, 2025 which leaves Denver International in Denver at 22:29 am and arrives at San Diego San Diego at 23:59.
Flight Schedule Denver (Colorado) to San Diego (California)
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Popular Airlines on the Route
The flight Denver — San Diego is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 36 departures per week at the price of from $ 81 . And the most expensive tickets are offered by United Airlines airline - from $ 784.
Direct flights
There are 19 nonstop flights on the route. The fastest direct flight is F92711 by Frontier Airlines takes 2h 21m and the cheapest is F92421 by Frontier Airlines for $35.
- AS - Alaska Airlinesfrom $81Find
- F9 - Frontier Airlinesfrom $35Find
- HA - Hawaiian Airlinesfrom $77Find
- UA - United Airlinesfrom $67Find
Connecting Flights
There are 303 flights with layovers on the route. The fastest connecting flight is F93861 by Frontier Airlines takes 4h 24m and the cheapest is F92421 by Frontier Airlines for $80.
- AS - Alaska Airlinesfrom $112Find
- F9 - Frontier Airlinesfrom $80Find
- SY - Sun Country Airlinesfrom $155Find
- HA - Hawaiian Airlinesfrom $103Find
- MX - Mexicanafrom $526Find
- UA - United Airlinesfrom $120Find
- G4 - Allegiant Airfrom $162Find
Airports
You can fly from Denver to San Diego from 2 airports (Denver International, Arapahoe Co).
Denver airports
- Denver International-DENfrom $35Find
- Arapahoe Co-APAFind
San Diego airports
- San Diego-SANFind
- 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
Airplanes
There are flights to San Diego from Denver by 7 airlines that use 1 aircraft brands. They range from huge modern airplanes to small-sized.
- Boeing 737-900from $67Find
Top Domestic Destinations from Denver
You may also consider searching for discounted plane tickets to some other popular places from Denver within United States.
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Top International Destinations from Denver
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.
- from $66Find
- from $63Find
- from $75Find
- from $60Find
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- from $66Find
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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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