Flight WN4010
Southwest Airlines flight WN4010
Looking for WN4010 in the air…
Alerts at this flight's airports
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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
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Advisory Coastal Flood Statement FLL
COASTAL FLOOD STATEMENT NOW IN EFFECT THROUGH THURSDAY EVENING
Weather
PBI → ISP
Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 73 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 60.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 64
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 61%
- Air traffic control & airport 30%
- Airline (crew, maintenance, cleaning) 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Tampa (TPA) to Baltimore (BWI)
Historically, this flight arrives 15+ minutes late 42% of the time, and when it is late the delay averages 57 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 58.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 36
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 81%
- Airline (crew, maintenance, cleaning) 12%
- Air traffic control & airport 5%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Albuquerque (ABQ)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 3.1% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 3.1%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 32
- Scheduled flights in the period
Chicago (MDW) to Tampa (TPA)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 31 minutes. It was cancelled 7.1% of the time.
- On-time arrivals
- 88.5%
- Less than 15 minutes late
- Cancelled
- 7.1%
- Of scheduled flights
- Average delay when late
- 31 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- 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 San Francisco (SFO)
Historically, this flight arrives 15+ minutes late 7% of the time, and when it is late the delay averages 24 minutes. It was cancelled 3.6% of the time.
- On-time arrivals
- 92.6%
- Less than 15 minutes late
- Cancelled
- 3.6%
- Of scheduled flights
- Average delay when late
- 24 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- 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).
Reno (RNO) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 80 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 91.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 90%
- Airline (crew, maintenance, cleaning) 10%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Long Beach (LGB) to Salt Lake City (SLC)
Only 12 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
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 12
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 81%
- Air traffic control & airport 14%
- Airline (crew, maintenance, cleaning) 5%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Seattle (SEA) to Phoenix (PHX)
Only 11 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
- 11
- Scheduled flights in the period
Portland (PDX) to Denver (DEN)
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
- 34 min
- Flights arriving 15+ minutes late
- Flights tracked
- 8
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 90%
- 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).
Phoenix (PHX) to Baltimore (BWI)
Only 8 flights on record, which is too few for reliable odds.
- On-time arrivals
- 71.4%
- Less than 15 minutes late
- Cancelled
- 12.5%
- Of scheduled flights
- Average delay when late
- 16 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).
San Diego (SAN) to Phoenix (PHX)
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
St Louis (STL) to San Antonio (SAT)
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
- 36 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4
- 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).
Phoenix (PHX) to Fort Lauderdale (FLL)
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
Albany (ALB) 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
Dallas (DAL) to Las Vegas (LAS)
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% | 30 |
| October 2025 | 100.0% | 1 |
| November 2025 | 60.7% | 28 |
| December 2025 | 61.3% | 31 |
| January 2026 | 90.9% | 22 |
| February 2026 | 89.7% | 31 |
| March 2026 | 88.0% | 27 |
| April 2026 | 83.3% | 18 |
| May 2026 | 83.3% | 18 |
| June 2026 | 64.7% | 18 |
| July 2026 | 61.9% | 21 |
| August 2026 | 57.9% | 19 |
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