Flight WN1547
Southwest Airlines flight WN1547
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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
Burbank (BUR) to San Jose (SJC)
Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 150 minutes. It was cancelled 4.8% of the time.
- On-time arrivals
- 96.7%
- Less than 15 minutes late
- Cancelled
- 4.8%
- Of scheduled flights
- Average delay when late
- 150 min
- Flights arriving 15+ minutes late
- Flights tracked
- 63
- 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).
Chicago (MDW) to Birmingham (BHM)
Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 76 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
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 42
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 64%
- Extreme weather 17%
- Air traffic control & airport 14%
- Airline (crew, maintenance, cleaning) 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 58% of the time, and when it is late the delay averages 37 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 41.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 37 min
- Flights arriving 15+ minutes late
- Flights tracked
- 32
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 68%
- Late-arriving aircraft 22%
- Airline (crew, maintenance, cleaning) 10%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Baltimore (BWI) to Houston (HOU)
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
- 31
- Scheduled flights in the period
Long Beach (LGB) to Sacramento (SMF)
Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 85 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 96.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 26
- 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).
Denver (DEN) to Kansas City (MCI)
Historically, this flight arrives 15+ minutes late 25% of the time, and when it is late the delay averages 37 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 75.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 37 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Airline (crew, maintenance, cleaning) 37%
- Air traffic control & airport 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Diego (SAN) to San Jose (SJC)
Historically, this flight arrives 15+ minutes late 65% of the time, and when it is late the delay averages 40 minutes. It was cancelled 4.2% of the time.
- On-time arrivals
- 34.8%
- Less than 15 minutes late
- Cancelled
- 4.2%
- Of scheduled flights
- Average delay when late
- 40 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 80%
- Airline (crew, maintenance, cleaning) 16%
- Air traffic control & airport 3%
- Security 1%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Jose (SJC) to Boise (BOI)
Historically, this flight arrives 15+ minutes late 58% of the time, and when it is late the delay averages 40 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 41.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 40 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 86%
- Airline (crew, maintenance, cleaning) 14%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Columbus (CMH) to Baltimore (BWI)
Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 182 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 95.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 182 min
- Flights arriving 15+ minutes late
- Flights tracked
- 23
- 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).
Denver (DEN) to Oklahoma City (OKC)
Only 11 flights on record, which is too few for reliable odds.
- On-time arrivals
- 90.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 11
- 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).
Houston (HOU) to Midland (MAF)
Only 10 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
- 10
- Scheduled flights in the period
Baltimore (BWI) to Charlotte (CLT)
Only 9 flights on record, which is too few for reliable odds.
- On-time arrivals
- 55.6%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 49 min
- Flights arriving 15+ minutes late
- Flights tracked
- 9
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 82%
- Security 14%
- Air traffic control & airport 4%
- Late-arriving aircraft 0%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Portland (PDX) to Las Vegas (LAS)
Only 7 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
- 7
- Scheduled flights in the period
Oakland (OAK) to Boise (BOI)
Only 5 flights on record, which is too few for reliable odds.
- On-time arrivals
- 60.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 103 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 52%
- Airline (crew, maintenance, cleaning) 48%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Tucson (TUS) to Houston (HOU)
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
Denver (DEN) to Houston (HOU)
Only 4 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
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 85%
- Airline (crew, maintenance, cleaning) 15%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Kansas City (MCI) 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 | 100.0% | 39 |
| October 2025 | 93.5% | 31 |
| November 2025 | 100.0% | 29 |
| December 2025 | 93.3% | 31 |
| January 2026 | 92.6% | 27 |
| February 2026 | 88.9% | 27 |
| March 2026 | 90.3% | 31 |
| April 2026 | 65.0% | 42 |
| May 2026 | 37.5% | 48 |
| June 2026 | 42.9% | 7 |
| July 2026 | 50.0% | 4 |
| August 2026 | 72.0% | 25 |
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