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Flight WN4574

Southwest Airlines flight WN4574

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Looking for WN4574 in the air…

Baltimore (BWI) to Greenville/Greer/Spartanburg (GSP)

Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 50 minutes. It was cancelled 3.4% of the time.

On-time arrivals
94.6%
Less than 15 minutes late
Cancelled
3.4%
Of scheduled flights
Average delay when late
50 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 65%
  • Air traffic control & airport 33%
  • Late-arriving aircraft 2%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Greenville/Greer/Spartanburg (GSP) to Nashville (BNA)

Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 41 minutes. It was cancelled 3.4% of the time.

On-time arrivals
94.6%
Less than 15 minutes late
Cancelled
3.4%
Of scheduled flights
Average delay when late
41 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 93%
  • Airline (crew, maintenance, cleaning) 4%
  • Air traffic control & airport 3%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Tampa (TPA) to New Orleans (MSY)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 57 minutes. It was cancelled 0.0% of the time.

On-time arrivals
90.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
57 min
Flights arriving 15+ minutes late
Flights tracked
40
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 60%
  • Air traffic control & airport 34%
  • Late-arriving aircraft 6%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Long Beach (LGB) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 31 minutes. It was cancelled 0.0% of the time.

On-time arrivals
94.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
31 min
Flights arriving 15+ minutes late
Flights tracked
36
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).

Las Vegas (LAS) to Fresno (FAT)

Only 18 flights on record, which is too few for reliable odds.

On-time arrivals
72.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
63 min
Flights arriving 15+ minutes late
Flights tracked
18
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 87%
  • Air traffic control & airport 9%
  • Airline (crew, maintenance, cleaning) 4%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Reno (RNO) to Denver (DEN)

Only 17 flights on record, which is too few for reliable odds.

On-time arrivals
94.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
22 min
Flights arriving 15+ minutes late
Flights tracked
17
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 86%
  • Air traffic control & airport 14%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Nashville (BNA) to New York (LGA)

Only 14 flights on record, which is too few for reliable odds.

On-time arrivals
83.3%
Less than 15 minutes late
Cancelled
14.3%
Of scheduled flights
Average delay when late
48 min
Flights arriving 15+ minutes late
Flights tracked
14
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 89%
  • Late-arriving aircraft 11%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Nashville (BNA) to Chicago (MDW)

Only 8 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
178 min
Flights arriving 15+ minutes late
Flights tracked
8
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 86%
  • Late-arriving aircraft 14%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Tampa (TPA) to Baltimore (BWI)

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
81 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).

Nashville (BNA) to Omaha (OMA)

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

Omaha (OMA) to Phoenix (PHX)

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

Atlanta (ATL) 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

In the news

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On-time arrivals by month
Nov 2025 Aug 2026
Show as table
MonthOn timeFlights
November 2025 81.2% 16
December 2025 50.0% 6
January 2026 92.6% 59
February 2026 93.4% 77
March 2026 100.0% 10
April 2026 100.0% 16
May 2026 82.6% 23
June 2026 100.0% 17
July 2026 94.4% 18
August 2026 89.5% 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

Latest airport & airline headlines

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Headlines found by Google News; stories open on the publisher's site.