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Flight WN4357

Southwest Airlines flight WN4357

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Looking for WN4357 in the air…

  • Advisory Airport Closure SNA

    Airport Closure at John Wayne Orange County International Airport (SNA): Reopens Nov 08 at 14:15 UTC.

    Airport status

  • Advisory Coastal Flood Advisory CLD, SAN, SNA

    COASTAL FLOOD ADVISORY IN EFFECT FROM 4 AM FRIDAY TO NOON PST TUESDAY

    Weather

San Jose (SJC) to Chicago (MDW)

Historically, this flight arrives 15+ minutes late 36% of the time, and when it is late the delay averages 44 minutes. It was cancelled 0.0% of the time.

On-time arrivals
64.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
44 min
Flights arriving 15+ minutes late
Flights tracked
52
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 51%
  • Late-arriving aircraft 38%
  • Air traffic control & airport 11%
  • Extreme weather 0%
  • Security 0%

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

Sacramento (SMF) to Burbank (BUR)

Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 55 minutes. It was cancelled 0.0% of the time.

On-time arrivals
71.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
55 min
Flights arriving 15+ minutes late
Flights tracked
46
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 93%
  • Air traffic control & airport 7%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Sacramento (SMF) to Ontario (ONT)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 83 minutes. It was cancelled 0.0% of the time.

On-time arrivals
87.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
83 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 70%
  • Airline (crew, maintenance, cleaning) 30%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Houston (HOU) to Lubbock (LBB)

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

On-time arrivals
83.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
70 min
Flights arriving 15+ minutes late
Flights tracked
18
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 95%
  • Airline (crew, maintenance, cleaning) 5%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Sacramento (SMF) to Santa Ana (SNA)

Only 17 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
17
Scheduled flights in the period

Phoenix (PHX) to Chicago (MDW)

Only 11 flights on record, which is too few for reliable odds.

On-time arrivals
81.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
31 min
Flights arriving 15+ minutes late
Flights tracked
11
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 51%
  • Security 42%
  • Late-arriving aircraft 7%
  • Air traffic control & airport 0%
  • Extreme weather 0%

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

Fort Myers (RSW) to Houston (HOU)

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
90 min
Flights arriving 15+ minutes late
Flights tracked
5
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 68%
  • Air traffic control & airport 29%
  • Airline (crew, maintenance, cleaning) 3%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Los Angeles (LAX)

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

Panama City Beach (ECP) 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

Chicago (MDW) to Houston (HOU)

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

Ontario (ONT) to Sacramento (SMF)

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
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 100.0% 17
November 2025 76.7% 30
December 2025 75.8% 33
January 2026 50.0% 6
February 2026 83.3% 12
March 2026 100.0% 1
April 2026 80.0% 10
May 2026 92.9% 14
June 2026 63.6% 24
July 2026 63.0% 27
August 2026 100.0% 6

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

More headlines →

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