Direct flights from San Diego to Denver
121 nonstop flights a week on 4 airlines. Zero layovers — one hop from SAN to DEN.
Flight time: about 1h48m nonstop
Flying back? Denver → San Diego · 126 nonstop flights a week
Which days does it fly?
When does it fly?
Departure times in San Diego local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Southwest SWA3641 | 6:15a | 1h48m | Mon, Thu, Fri, Sun |
| Frontier FFT2818 | 6:25a | 1h50m | Daily |
| Southwest SWA3641 | 6:30a | 1h48m | Tue–Wed |
| Southwest SWA3641 | 6:55a | 1h43m | Sat |
| United UAL2829 | 7:00a | 1h50m | Daily |
| Southwest SWA1934 | 7:20a | 1h48m | Mon, Thu, Fri |
| Southwest SWA2502 | 7:55a | 1h48m | Sun |
| Alaska ASA1342 | 8:00a | 1h48m | Daily |
| United UAL1071 | 8:00a | 1h54m | Thu |
| Southwest SWA2048 | 8:20a | 1h47m | Tue–Wed |
| Southwest SWA1737 | 8:25a | 1h42m | Sat |
| United UAL2476 | 8:45a | 1h49m | Daily |
| Southwest SWA1936 | 10:00a | 2h4m | Sun |
| Southwest SWA1840 | 10:50a | 1h47m | Mon, Thu, Fri |
| United UAL2793 | 11:00a | 1h49m | Daily |
| Southwest SWA1452 | 11:25a | 1h45m | Sun |
| Southwest SWA1965 | 11:50a | 1h57m | Tue–Wed |
| Southwest SWA1767 | 12:10p | 1h41m | Sat |
| United UAL1565 | 12:37p | 1h50m | Daily |
| Southwest SWA2019 | 12:55p | 1h51m | Sun |
| Southwest SWA2019 | 1:40p | 1h37m | Sat |
| Southwest SWA2215 | 1:55p | 1h54m | Tue–Wed |
| Southwest SWA1329 | 2:10p | 1h47m | Mon, Thu, Fri |
| Alaska ASA635 | 2:33p | 1h46m | Mon, Tue, Wed, Thu, Sat, Sun |
| Southwest SWA3671 | 2:40p | 1h44m | Sun |
| Southwest SWA1264 | 3:20p | 1h48m | Tue–Wed |
| Southwest SWA2019 | 3:30p | 1h46m | Mon, Thu, Fri |
| United UAL682 | 4:11p | 1h51m | Daily |
| Southwest SWA1129 | 4:40p | 1h35m | Sat |
| Frontier FFT4990 | 4:54p | 1h50m | Daily |
| Southwest SWA3013 | 5:45p | 1h40m | Sat |
| Southwest SWA3286 | 5:55p | 2h1m | Mon, Thu, Fri |
| SkyWest SKW3121 | 6:33p | 2h9m | Tue, Wed, Sat |
| United UAL519 | 6:50p | 1h55m | Mon, Wed, Thu, Fri, Sun |
| Southwest SWA2515 | 7:20p | 1h57m | Tue–Wed |
| SkyWest SKW3121 | 8:19p | 2h8m | Mon, Thu, Fri, Sun |
| Southwest SWA4347 | 8:25p | 1h47m | Sun |
| Southwest SWA4492 | 9:15p | 2h5m | Mon, Thu, Fri |
Southwest
UnitedOther airports near San Diego with nonstops to Denver
| Airport | Distance | Flights / wk |
|---|---|---|
| SNA — Orange CountyFrontier, Southwest, United | 76 mi | 76 |
| PSP — Palm SpringsSouthwest, United | 85 mi | 38 |
| LGB — Long BeachSouthwest | 93 mi | 19 |
| ONT — OntarioFrontier, Southwest, United | 94 mi | 53 |
| LAX — Los AngelesAmerican, Delta, Frontier, Southwest, United | 109 mi | 154 |
The route
One hop: SAN → DENDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from San Diego (SAN) to Denver (DEN)
San Diego International Airport (SAN) has 121 nonstop flights a week to Denver (DEN), operated by Alaska, Frontier, Southwest and United. No layovers, no connections — one hop out of SAN and you're there.
This route flies every day of the week, so any travel day works. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from San Diego to Denver?
The nonstop flight from San Diego (SAN) to Denver (DEN) takes about 1h48m in the air, based on recently observed nonstop departures.
Is there a nonstop return flight from Denver to San Diego?
Yes — 126 nonstop flights a week from Denver (DEN) back to San Diego (SAN) on Alaska, Delta, Frontier, Southwest and United, based on recently observed departures.