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Flight WN479

Southwest Airlines flight WN479

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Dallas (DAL) to Indianapolis (IND)

Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 68 minutes. It was cancelled 1.7% of the time.

On-time arrivals
84.2%
Less than 15 minutes late
Cancelled
1.7%
Of scheduled flights
Average delay when late
68 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 39%
  • Airline (crew, maintenance, cleaning) 35%
  • Air traffic control & airport 15%
  • Security 7%
  • Extreme weather 3%

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

Sacramento (SMF) to Kahului (OGG)

Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 32 minutes. It was cancelled 0.0% of the time.

On-time arrivals
91.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
32 min
Flights arriving 15+ minutes late
Flights tracked
45
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 79%
  • Air traffic control & airport 21%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Hartford (BDL) to Orlando (MCO)

Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.

On-time arrivals
66.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
43 min
Flights arriving 15+ minutes late
Flights tracked
42
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 54%
  • Late-arriving aircraft 35%
  • Airline (crew, maintenance, cleaning) 11%
  • Extreme weather 0%
  • Security 0%

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

New Orleans (MSY) to Nashville (BNA)

Historically, this flight arrives 15+ minutes late 34% of the time, and when it is late the delay averages 70 minutes. It was cancelled 0.0% of the time.

On-time arrivals
65.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
70 min
Flights arriving 15+ minutes late
Flights tracked
41
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 60%
  • Air traffic control & airport 28%
  • Airline (crew, maintenance, cleaning) 12%
  • Extreme weather 0%
  • Security 0%

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

Baltimore (BWI) to Hartford (BDL)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 45 minutes. It was cancelled 0.0% of the time.

On-time arrivals
81.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
45 min
Flights arriving 15+ minutes late
Flights tracked
32
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 68%
  • Airline (crew, maintenance, cleaning) 19%
  • Air traffic control & airport 13%
  • Extreme weather 0%
  • Security 0%

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

Dallas (DAL) to Austin (AUS)

Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 94 minutes. It was cancelled 0.0% of the time.

On-time arrivals
87.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
94 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 62%
  • Air traffic control & airport 30%
  • Airline (crew, maintenance, cleaning) 8%
  • Extreme weather 0%
  • Security 0%

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

Louisville (SDF) to Baltimore (BWI)

Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 203 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
203 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

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

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

Denver (DEN) to Atlanta (ATL)

Historically, this flight arrives 15+ minutes late 58% of the time, and when it is late the delay averages 42 minutes. It was cancelled 0.0% of the time.

On-time arrivals
41.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
42 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 48%
  • Late-arriving aircraft 43%
  • Air traffic control & airport 9%
  • Extreme weather 0%
  • Security 0%

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

Orlando (MCO) to New Orleans (MSY)

Historically, this flight arrives 15+ minutes late 50% of the time, and when it is late the delay averages 53 minutes. It was cancelled 0.0% of the time.

On-time arrivals
50.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
22
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 62%
  • Air traffic control & airport 30%
  • Airline (crew, maintenance, cleaning) 5%
  • Security 3%
  • Extreme weather 0%

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

Houston (HOU) to Phoenix (PHX)

Only 18 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
39 min
Flights arriving 15+ minutes late
Flights tracked
18
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 74%
  • Airline (crew, maintenance, cleaning) 21%
  • Air traffic control & airport 5%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to Hartford (BDL)

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

On-time arrivals
94.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
18 min
Flights arriving 15+ minutes late
Flights tracked
18
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 56%
  • Late-arriving aircraft 38%
  • Airline (crew, maintenance, cleaning) 6%
  • Extreme weather 0%
  • Security 0%

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

Austin (AUS) to Indianapolis (IND)

Only 16 flights on record, which is too few for reliable odds.

On-time arrivals
37.5%
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

  • Late-arriving aircraft 44%
  • Airline (crew, maintenance, cleaning) 36%
  • Air traffic control & airport 10%
  • Security 10%
  • Extreme weather 0%

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

Austin (AUS) to Burbank (BUR)

Only 13 flights on record, which is too few for reliable odds.

On-time arrivals
53.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
13
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 65%
  • Late-arriving aircraft 22%
  • Air traffic control & airport 13%
  • Extreme weather 0%
  • Security 0%

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

Indianapolis (IND) to Denver (DEN)

Only 10 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
10
Scheduled flights in the period

Chicago (MDW) to Phoenix (PHX)

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

What caused the delays

  • Extreme weather 83%
  • Airline (crew, maintenance, cleaning) 10%
  • Air traffic control & airport 7%
  • Late-arriving aircraft 0%
  • Security 0%

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

Tampa (TPA) to Indianapolis (IND)

Only 5 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
5
Scheduled flights in the period

Burbank (BUR) to Phoenix (PHX)

Only 4 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
35 min
Flights arriving 15+ minutes late
Flights tracked
4
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).

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

Dallas (DAL) to Valparaiso (VPS)

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

Denver (DEN) to Dallas (DAL)

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

Valparaiso (VPS) 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

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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 77.8% 45
November 2025 64.3% 42
December 2025 54.3% 35
January 2026 77.4% 32
February 2026 85.7% 28
March 2026 91.3% 23
April 2026 67.4% 43
May 2026 85.7% 49
June 2026 72.7% 33
July 2026 80.6% 31
August 2026 48.4% 31

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.