Route
COS → SAN
City of Colorado Springs Municipal Airport San Diego International Airport
Alerts at COS and SAN
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
How punctual is this route?
- On-time arrivals
- 66.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 187
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 41%
- Air traffic control & airport 37%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 76.2% | 21 |
| November 2025 | 80.0% | 20 |
| December 2025 | 70.6% | 17 |
| January 2026 | 87.5% | 8 |
| February 2026 | 81.8% | 11 |
| March 2026 | 66.7% | 21 |
| April 2026 | 77.8% | 18 |
| May 2026 | 50.0% | 18 |
| June 2026 | 29.4% | 17 |
| July 2026 | 50.0% | 18 |
| August 2026 | 72.2% | 18 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 187 | 66.3% | 0.0% | 61 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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