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Flight WN4545

Southwest Airlines flight WN4545

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Looking for WN4545 in the air…

  • Advisory Coastal Flood Advisory OAK, SFO, SQL, STS

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Los Angeles (LAX) to Chicago (MDW)

Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 58 minutes. It was cancelled 0.0% of the time.

On-time arrivals
79.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
58 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 66%
  • Air traffic control & airport 21%
  • Late-arriving aircraft 13%
  • Extreme weather 0%
  • Security 0%

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

St Louis (STL) to Austin (AUS)

Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 39 minutes. It was cancelled 0.0% of the time.

On-time arrivals
80.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
39 min
Flights arriving 15+ minutes late
Flights tracked
46
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 56%
  • Airline (crew, maintenance, cleaning) 35%
  • Extreme weather 5%
  • Late-arriving aircraft 4%
  • Security 0%

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

Orlando (MCO) to Providence/Warwick (PVD)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 28 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
28 min
Flights arriving 15+ minutes late
Flights tracked
43
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 78%
  • Air traffic control & airport 22%
  • Late-arriving aircraft 0%
  • 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 49% of the time, and when it is late the delay averages 60 minutes. It was cancelled 0.0% of the time.

On-time arrivals
51.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
60 min
Flights arriving 15+ minutes late
Flights tracked
42
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 78%
  • Airline (crew, maintenance, cleaning) 11%
  • Air traffic control & airport 7%
  • Extreme weather 5%
  • Security 0%

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

St Louis (STL) to Las Vegas (LAS)

Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 72 minutes. It was cancelled 0.0% of the time.

On-time arrivals
81.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
72 min
Flights arriving 15+ minutes late
Flights tracked
33
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 66%
  • Airline (crew, maintenance, cleaning) 34%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Rochester (ROC) to Baltimore (BWI)

Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 110 minutes. It was cancelled 0.0% of the time.

On-time arrivals
93.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
110 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 83%
  • Extreme weather 17%
  • Late-arriving aircraft 0%
  • Air traffic control & airport 0%
  • Security 0%

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

Oakland (OAK) to Phoenix (PHX)

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

On-time arrivals
88.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
18
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 72%
  • Air traffic control & airport 28%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Chicago (MDW)

Only 13 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
13
Scheduled flights in the period

Boston (BOS) to Austin (AUS)

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

What caused the delays

  • Late-arriving aircraft 58%
  • Airline (crew, maintenance, cleaning) 34%
  • Air traffic control & airport 8%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to Charleston (CHS)

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

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 93.3% 30
October 2025 100.0% 1
November 2025 83.3% 30
December 2025 85.0% 40
January 2026 90.9% 33
February 2026 71.4% 28
March 2026 83.9% 31
April 2026 70.4% 27
May 2026 45.8% 25
June 2026 86.4% 22
July 2026 90.9% 23
August 2026 77.8% 9

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.