Flight WN3884
Southwest Airlines flight WN3884
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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
St Louis (STL) to Austin (AUS)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 71 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 88.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 60
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 41%
- Late-arriving aircraft 39%
- Airline (crew, maintenance, cleaning) 13%
- Security 4%
- Extreme weather 3%
Share of delay minutes airlines attributed to each cause (BTS).
Nashville (BNA) to Myrtle Beach (MYR)
Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 53 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 84.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 33
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 41%
- Air traffic control & airport 31%
- Airline (crew, maintenance, cleaning) 28%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to San Jose (SJC)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 39 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 75.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 39 min
- Flights arriving 15+ minutes late
- Flights tracked
- 33
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 59%
- Late-arriving aircraft 37%
- Air traffic control & airport 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Myrtle Beach (MYR) to Baltimore (BWI)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 84 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 89.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 84 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 82%
- Air traffic control & airport 17%
- Airline (crew, maintenance, cleaning) 1%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
St Louis (STL) to Fort Myers (RSW)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 42 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 91.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 42 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 62%
- Extreme weather 38%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Burbank (BUR) to Reno (RNO)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 76.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 100%
- Airline (crew, maintenance, cleaning) 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to San Diego (SAN)
Only 17 flights on record, which is too few for reliable odds.
- On-time arrivals
- 23.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 67 min
- Flights arriving 15+ minutes late
- Flights tracked
- 17
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Air traffic control & airport 28%
- Airline (crew, maintenance, cleaning) 11%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Austin (AUS) to Kansas City (MCI)
Only 8 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 12.5%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 8
- Scheduled flights in the period
Baltimore (BWI) to Houston (HOU)
Only 8 flights on record, which is too few for reliable odds.
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 8
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 61%
- Airline (crew, maintenance, cleaning) 39%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Kansas City (MCI) to Nashville (BNA)
Only 8 flights on record, which is too few for reliable odds.
- On-time arrivals
- 85.7%
- Less than 15 minutes late
- Cancelled
- 12.5%
- Of scheduled flights
- Average delay when late
- 98 min
- Flights arriving 15+ minutes late
- Flights tracked
- 8
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 88%
- Late-arriving aircraft 12%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (MDW) to Phoenix (PHX)
Only 8 flights on record, which is too few for reliable odds.
- On-time arrivals
- 62.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 30 min
- Flights arriving 15+ minutes late
- Flights tracked
- 8
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 64%
- Late-arriving aircraft 36%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Houston (HOU) to Nashville (BNA)
Only 5 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
- 5
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 23.5% | 17 |
| November 2025 | 75.0% | 4 |
| December 2025 | 80.0% | 11 |
| January 2026 | 66.7% | 3 |
| March 2026 | 89.0% | 75 |
| April 2026 | 75.0% | 32 |
| May 2026 | 72.7% | 22 |
| June 2026 | 86.2% | 29 |
| July 2026 | 90.0% | 30 |
| August 2026 | 92.6% | 27 |
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