Flight WN4806
Southwest Airlines flight WN4806
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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
Reno (RNO) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 36 minutes. It was cancelled 1.2% of the time.
- On-time arrivals
- 89.2%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 36 min
- Flights arriving 15+ minutes late
- Flights tracked
- 84
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 49%
- Airline (crew, maintenance, cleaning) 43%
- Security 8%
- Late-arriving aircraft 0%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Norfolk (ORF) to Chicago (MDW)
Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 50 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 85.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 66%
- Airline (crew, maintenance, cleaning) 34%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (MDW) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 77 minutes. It was cancelled 12.0% of the time.
- On-time arrivals
- 72.7%
- Less than 15 minutes late
- Cancelled
- 12.0%
- Of scheduled flights
- Average delay when late
- 77 min
- Flights arriving 15+ minutes late
- Flights tracked
- 25
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 84%
- Airline (crew, maintenance, cleaning) 14%
- Air traffic control & airport 2%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Jose (SJC) to Reno (RNO)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
Orlando (MCO) to Chicago (MDW)
Only 19 flights on record, which is too few for reliable odds.
- On-time arrivals
- 63.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 106 min
- Flights arriving 15+ minutes late
- Flights tracked
- 19
- Scheduled flights in the period
What caused the delays
- Extreme weather 56%
- Late-arriving aircraft 24%
- Airline (crew, maintenance, cleaning) 13%
- Air traffic control & airport 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to Kansas City (MCI)
Only 13 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 13
- Scheduled flights in the period
Denver (DEN) to Indianapolis (IND)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 0.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 108 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 81%
- Late-arriving aircraft 16%
- Air traffic control & airport 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to Denver (DEN)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| November 2025 | 66.7% | 3 |
| December 2025 | 100.0% | 9 |
| January 2026 | 66.7% | 16 |
| February 2026 | 68.0% | 27 |
| March 2026 | 100.0% | 4 |
| April 2026 | 100.0% | 20 |
| May 2026 | 92.3% | 26 |
| June 2026 | 86.2% | 29 |
| July 2026 | 89.7% | 30 |
| August 2026 | 87.1% | 31 |
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