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Flight WN403

Southwest Airlines flight WN403

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Austin (AUS) to Chicago (MDW)

Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 76 minutes. It was cancelled 0.0% of the time.

On-time arrivals
69.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
76 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 75%
  • Airline (crew, maintenance, cleaning) 21%
  • Air traffic control & airport 4%
  • Extreme weather 0%
  • Security 0%

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

Salt Lake City (SLC) to Phoenix (PHX)

Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.

On-time arrivals
82.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
47 min
Flights arriving 15+ minutes late
Flights tracked
51
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 81%
  • Airline (crew, maintenance, cleaning) 12%
  • Air traffic control & airport 7%
  • Extreme weather 0%
  • Security 0%

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

Atlanta (ATL) to Kansas City (MCI)

Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.

On-time arrivals
87.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
47 min
Flights arriving 15+ minutes late
Flights tracked
46
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 81%
  • Security 10%
  • Airline (crew, maintenance, cleaning) 9%
  • Air traffic control & airport 0%
  • Extreme weather 0%

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

Austin (AUS) to Salt Lake City (SLC)

Historically, this flight arrives 15+ minutes late 20% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.

On-time arrivals
80.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
47 min
Flights arriving 15+ minutes late
Flights tracked
35
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 69%
  • Air traffic control & airport 16%
  • Airline (crew, maintenance, cleaning) 15%
  • Extreme weather 0%
  • Security 0%

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

Atlanta (ATL) to New York (LGA)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 72 minutes. It was cancelled 0.0% of the time.

On-time arrivals
90.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
72 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 52%
  • Late-arriving aircraft 43%
  • Air traffic control & airport 5%
  • Extreme weather 0%
  • Security 0%

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

Baltimore (BWI) to Boston (BOS)

Historically, this flight arrives 15+ minutes late 50% of the time, and when it is late the delay averages 53 minutes. It was cancelled 4.0% of the time.

On-time arrivals
50.0%
Less than 15 minutes late
Cancelled
4.0%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
25
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 37%
  • Late-arriving aircraft 33%
  • Air traffic control & airport 30%
  • Extreme weather 0%
  • Security 0%

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

Kansas City (MCI) to Los Angeles (LAX)

Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 33 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
33 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 64%
  • Late-arriving aircraft 25%
  • Air traffic control & airport 11%
  • Extreme weather 0%
  • Security 0%

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

Albuquerque (ABQ) to Phoenix (PHX)

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

On-time arrivals
64.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
17
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 94%
  • Airline (crew, maintenance, cleaning) 5%
  • Air traffic control & airport 1%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Kansas City (MCI)

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

On-time arrivals
86.7%
Less than 15 minutes late
Cancelled
6.2%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 65%
  • Late-arriving aircraft 35%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Charleston (CHS) to Chicago (MDW)

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

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
7.1%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
14
Scheduled flights in the period

Denver (DEN) to Tucson (TUS)

Only 12 flights on record, which is too few for reliable odds.

On-time arrivals
58.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 50%
  • Airline (crew, maintenance, cleaning) 32%
  • Air traffic control & airport 19%
  • Extreme weather 0%
  • Security 0%

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

Indianapolis (IND) to Denver (DEN)

Only 12 flights on record, which is too few for reliable odds.

On-time arrivals
66.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
68 min
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

What caused the delays

  • Extreme weather 63%
  • Late-arriving aircraft 20%
  • Air traffic control & airport 10%
  • Airline (crew, maintenance, cleaning) 8%
  • Security 0%

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

Tucson (TUS) to Las Vegas (LAS)

Only 12 flights on record, which is too few for reliable odds.

On-time arrivals
45.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
61 min
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 68%
  • Air traffic control & airport 31%
  • Airline (crew, maintenance, cleaning) 1%
  • Extreme weather 0%
  • Security 0%

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

Austin (AUS) to New Orleans (MSY)

Only 9 flights on record, which is too few for reliable odds.

On-time arrivals
44.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
54 min
Flights arriving 15+ minutes late
Flights tracked
9
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 77%
  • Airline (crew, maintenance, cleaning) 16%
  • Air traffic control & airport 7%
  • Extreme weather 0%
  • Security 0%

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

Fort Myers (RSW) to Orlando (MCO)

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

What caused the delays

  • Late-arriving aircraft 65%
  • Airline (crew, maintenance, cleaning) 21%
  • Air traffic control & airport 14%
  • Extreme weather 0%
  • Security 0%

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

San Juan (SJU) to Baltimore (BWI)

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

Miami (MIA) to Orlando (MCO)

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

Buffalo (BUF) to Orlando (MCO)

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

Austin (AUS) to Lubbock (LBB)

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 New York (LGA)

Only 1 flight on record, which is too few for reliable odds.

On-time arrivals
0.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
108 min
Flights arriving 15+ minutes late
Flights tracked
1
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 94%
  • Air traffic control & airport 5%
  • Late-arriving aircraft 1%
  • Extreme weather 0%
  • Security 0%

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

Las Vegas (LAS) to Los Angeles (LAX)

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

Lubbock (LBB) 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

Milwaukee (MKE) to Austin (AUS)

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

Sacramento (SMF) to Ontario (ONT)

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

Tampa (TPA) to Atlanta (ATL)

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

On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 90.0% 30
October 2025 100.0% 5
November 2025 87.2% 39
December 2025 66.7% 45
January 2026 100.0% 14
February 2026 94.4% 19
March 2026 50.0% 29
April 2026 76.7% 30
May 2026 64.5% 31
June 2026 69.4% 49
July 2026 83.0% 54
August 2026 62.8% 44

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.