Flying from San Diego to Denver can be expensive. Our search helps you compare cheap flights, airfare deals, and flight tickets across airlines and agencies so you can book at the best price.
We scan trusted travel agencies and airline booking systems for the route San Diego - Denver (SAN - DEN). We do not sell tickets or add fees - you choose where to buy.
Airfares vary by date, time, and airport. Use filters to find the best option by departure/arrival time, number of stops, airline or alliance, and booking channel.
If your dates are flexible, check the low-fare calendar to find the cheapest days. Booking round-trip in one order often reduces fees, and prices usually rise as departure approaches.
We also recommend you to look through the prices for return tickets from Denver to San Diego.
Airfares found by our users in the past 24 hours
The price for these dates could change. Use search to get the best price.
Airlines are flying from San Diego to Denver
| Frontier Airlines | Southwest Airlines |
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Frequently asked questions about flights from San Diego to Denver
How long does the flight from San Diego to Denver take?
Flight duration from San Diego to Denver varies by route, airline, and number of stops. Direct flights are faster; connecting flights may take longer. Use our search to compare options and see exact durations for your dates.
Are there direct flights from San Diego to Denver?
Availability of direct flights from San Diego to Denver depends on the route and season. Use our search and filter by "Direct" or "Non-stop" to see only direct options. We compare offers from many airlines and agencies.
Which airlines fly from San Diego to Denver?
Several airlines may operate flights from San Diego to Denver. On this page you can see airlines that serve this route. Our search compares prices across airlines and agencies so you can choose the best offer. We do not sell tickets; you book directly with the airline or agency.
What is the cheapest month to fly from San Diego to Denver?
Prices from San Diego to Denver vary by month and demand. On this page you can see average round-trip prices by month. Use the low-fare calendar and monthly table to find the cheapest dates. Booking in advance and avoiding peak seasons often helps get the best price.