Flight WN3433
Southwest Airlines flight WN3433
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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
Las Vegas (LAS) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 73.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 43 min
- Flights arriving 15+ minutes late
- Flights tracked
- 57
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 50%
- Air traffic control & airport 39%
- Late-arriving aircraft 11%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sacramento (SMF) to Las Vegas (LAS)
Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 32 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 91.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 32 min
- Flights arriving 15+ minutes late
- Flights tracked
- 57
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 56%
- Air traffic control & airport 29%
- Security 15%
- Late-arriving aircraft 0%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Denver (DEN) to Spokane (GEG)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 50 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 88.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 50 min
- Flights arriving 15+ minutes late
- Flights tracked
- 45
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 46%
- Air traffic control & airport 34%
- Late-arriving aircraft 20%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (LGA) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 61 minutes. It was cancelled 2.4% of the time.
- On-time arrivals
- 72.5%
- Less than 15 minutes late
- Cancelled
- 2.4%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 41
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 41%
- Airline (crew, maintenance, cleaning) 26%
- Late-arriving aircraft 25%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Houston (HOU) to Chicago (MDW)
Historically, this flight arrives 15+ minutes late 76% of the time, and when it is late the delay averages 67 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 24.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 67 min
- Flights arriving 15+ minutes late
- Flights tracked
- 33
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Air traffic control & airport 28%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Baltimore (BWI) to Tampa (TPA)
Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 29 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 90.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 29 min
- Flights arriving 15+ minutes late
- Flights tracked
- 21
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 53%
- Air traffic control & airport 47%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sacramento (SMF) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 36 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 76.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 36 min
- Flights arriving 15+ minutes late
- Flights tracked
- 21
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 44%
- Airline (crew, maintenance, cleaning) 29%
- Late-arriving aircraft 27%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Antonio (SAT) to Dallas (DAL)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 87.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 116 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 58%
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 5%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Islip (ISP) to Baltimore (BWI)
Only 13 flights on record, which is too few for reliable odds.
- On-time arrivals
- 92.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 31 min
- Flights arriving 15+ minutes late
- Flights tracked
- 13
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 100%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Diego (SAN) to New Orleans (MSY)
Only 12 flights on record, which is too few for reliable odds.
- On-time arrivals
- 8.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 68 min
- Flights arriving 15+ minutes late
- Flights tracked
- 12
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 70%
- Airline (crew, maintenance, cleaning) 17%
- Air traffic control & airport 14%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Spokane (GEG) to Las Vegas (LAS)
Only 9 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
- 9
- Scheduled flights in the period
Las Vegas (LAS) to Nashville (BNA)
Only 8 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
- 8
- Scheduled flights in the period
Hartford (BDL) to Tampa (TPA)
Only 5 flights on record, which is too few for reliable odds.
- On-time arrivals
- 80.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 136 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 100%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to St Louis (STL)
Only 4 flights on record, which is too few for reliable odds.
- On-time arrivals
- 50.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 52 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 74%
- Air traffic control & airport 20%
- Airline (crew, maintenance, cleaning) 6%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Kansas City (MCI) to Fort Myers (RSW)
Only 3 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
- 3
- Scheduled flights in the period
Baltimore (BWI) to Salt Lake City (SLC)
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
Raleigh/Durham (RDU) to Baltimore (BWI)
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 |
|---|---|---|
| September 2025 | 72.0% | 25 |
| October 2025 | 94.0% | 50 |
| November 2025 | 73.9% | 24 |
| December 2025 | 75.0% | 20 |
| January 2026 | 66.7% | 3 |
| February 2026 | 100.0% | 3 |
| March 2026 | 29.6% | 27 |
| April 2026 | 81.5% | 54 |
| May 2026 | 77.4% | 62 |
| June 2026 | 81.8% | 33 |
| July 2026 | 90.3% | 31 |
| August 2026 | 26.7% | 15 |
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