Flight WN937
Southwest Airlines flight WN937
Looking for WN937 in the air…
Alerts at this flight's airports
-
Read the story →
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
Baltimore (BWI) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 42 minutes. It was cancelled 1.6% of the time.
- On-time arrivals
- 47.6%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 42 min
- Flights arriving 15+ minutes late
- Flights tracked
- 64
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 32%
- Late-arriving aircraft 31%
- Extreme weather 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Tampa (TPA) to Chicago (MDW)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 86 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 76.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 52
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 33%
- Extreme weather 30%
- Air traffic control & airport 20%
- Airline (crew, maintenance, cleaning) 17%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Cleveland (CLE) to Baltimore (BWI)
Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 37 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 90.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 37 min
- Flights arriving 15+ minutes late
- Flights tracked
- 43
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 94%
- Airline (crew, maintenance, cleaning) 6%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Nashville (BNA) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 70 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 61.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 70 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 62%
- Late-arriving aircraft 23%
- Extreme weather 9%
- Airline (crew, maintenance, cleaning) 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to San Jose (SJC)
Historically, this flight arrives 15+ minutes late 46% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 54.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 43 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 75%
- Airline (crew, maintenance, cleaning) 25%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Las Vegas (LAS)
Historically, this flight arrives 15+ minutes late 55% of the time, and when it is late the delay averages 72 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 45.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 72 min
- Flights arriving 15+ minutes late
- Flights tracked
- 22
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 46%
- Air traffic control & airport 32%
- Airline (crew, maintenance, cleaning) 22%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Buffalo (BUF) to Nashville (BNA)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 91%
- Airline (crew, maintenance, cleaning) 7%
- Air traffic control & airport 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Denver (DEN) to San Diego (SAN)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 52 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 68%
- Late-arriving aircraft 19%
- Air traffic control & airport 12%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to Minneapolis (MSP)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 38.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 80%
- Airline (crew, maintenance, cleaning) 20%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Dallas (DAL)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 58.8%
- Less than 15 minutes late
- Cancelled
- 5.6%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Extreme weather 31%
- Airline (crew, maintenance, cleaning) 30%
- Late-arriving aircraft 20%
- Air traffic control & airport 19%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Nashville (BNA) to Atlanta (ATL)
Only 17 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
- 90 min
- Flights arriving 15+ minutes late
- Flights tracked
- 17
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 49%
- Airline (crew, maintenance, cleaning) 48%
- Late-arriving aircraft 2%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Baltimore (BWI) to Islip (ISP)
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
- 27 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 91%
- Airline (crew, maintenance, cleaning) 9%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
ISP → PBI
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 6.2%
- Of scheduled flights
- Average delay when late
- 29 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 37%
- Late-arriving aircraft 32%
- Air traffic control & airport 31%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (MDW) to Cleveland (CLE)
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
- 42 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- 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).
St Louis (STL) to Nashville (BNA)
Only 15 flights on record, which is too few for reliable odds.
- On-time arrivals
- 73.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 43 min
- Flights arriving 15+ minutes late
- Flights tracked
- 15
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 68%
- Late-arriving aircraft 32%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Fort Myers (RSW) to Baltimore (BWI)
Only 12 flights on record, which is too few for reliable odds.
- On-time arrivals
- 91.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 40 min
- Flights arriving 15+ minutes late
- Flights tracked
- 12
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 76%
- Airline (crew, maintenance, cleaning) 16%
- Air traffic control & airport 8%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to Albuquerque (ABQ)
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
- 23 min
- Flights arriving 15+ minutes late
- Flights tracked
- 8
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 55%
- Late-arriving aircraft 45%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
El Paso (ELP) to Dallas (DAL)
Only 4 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
- 4
- Scheduled flights in the period
Birmingham (BHM) 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
Baltimore (BWI) to Buffalo (BUF)
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
Orlando (MCO) to Houston (HOU)
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
- 32 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- 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).
San Diego (SAN) to Nashville (BNA)
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
In the news
More headlines →-
City Council backs $55 million in new Hartsfield-Jackson funding as construction projects multiply
The Business Journals ATL
-
Over 400 flights cancelled due to severe weather at Hartsfield-Jackson Atlanta International Airport, Georgia
The Watchers - Watching the world evolve and transform ATL
-
Hartsfield-Jackson Atlanta International Airport
The Aviation Hub ATL
Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 60.0% | 30 |
| October 2025 | 51.0% | 52 |
| November 2025 | 94.7% | 19 |
| December 2025 | 46.7% | 15 |
| January 2026 | 92.0% | 25 |
| February 2026 | 59.3% | 27 |
| March 2026 | 71.0% | 31 |
| April 2026 | 78.3% | 24 |
| May 2026 | 45.5% | 22 |
| June 2026 | 59.3% | 59 |
| July 2026 | 85.3% | 69 |
| August 2026 | 61.9% | 43 |
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