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Flight WN1431

Southwest Airlines flight WN1431

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  • Watch Ground Delay Program SAN

    Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes

    Reason: airport volume

    Airport status

    Read the story →
  • Advisory Coastal Flood Advisory CLD, SAN, SNA

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

    Weather

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

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Columbus (CMH) to Tampa (TPA)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 58 minutes. It was cancelled 0.0% of the time.

On-time arrivals
87.7%
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) 63%
  • Late-arriving aircraft 27%
  • Air traffic control & airport 11%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Bozeman (BZN)

Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 36 minutes. It was cancelled 0.0% of the time.

On-time arrivals
75.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
36 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 56%
  • Airline (crew, maintenance, cleaning) 31%
  • Air traffic control & airport 12%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to Houston (HOU)

Historically, this flight arrives 15+ minutes late 48% of the time, and when it is late the delay averages 51 minutes. It was cancelled 2.3% of the time.

On-time arrivals
52.4%
Less than 15 minutes late
Cancelled
2.3%
Of scheduled flights
Average delay when late
51 min
Flights arriving 15+ minutes late
Flights tracked
43
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 64%
  • Airline (crew, maintenance, cleaning) 20%
  • Air traffic control & airport 16%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to Atlanta (ATL)

Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 50 minutes. It was cancelled 2.4% of the time.

On-time arrivals
82.9%
Less than 15 minutes late
Cancelled
2.4%
Of scheduled flights
Average delay when late
50 min
Flights arriving 15+ minutes late
Flights tracked
42
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 70%
  • Air traffic control & airport 22%
  • Late-arriving aircraft 8%
  • Extreme weather 0%
  • Security 0%

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

San Antonio (SAT) to Las Vegas (LAS)

Historically, this flight arrives 15+ minutes late 30% of the time, and when it is late the delay averages 63 minutes. It was cancelled 0.0% of the time.

On-time arrivals
69.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
63 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) 23%
  • Air traffic control & airport 11%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to Nashville (BNA)

Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 45 minutes. It was cancelled 0.0% of the time.

On-time arrivals
96.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
45 min
Flights arriving 15+ minutes late
Flights tracked
31
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).

San Diego (SAN) to San Francisco (SFO)

Historically, this flight arrives 15+ minutes late 37% of the time, and when it is late the delay averages 39 minutes. It was cancelled 0.0% of the time.

On-time arrivals
63.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
39 min
Flights arriving 15+ minutes late
Flights tracked
27
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 49%
  • Late-arriving aircraft 28%
  • Airline (crew, maintenance, cleaning) 23%
  • Extreme weather 0%
  • Security 0%

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

Oakland (OAK) to San Diego (SAN)

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

On-time arrivals
29.4%
Less than 15 minutes late
Cancelled
5.6%
Of scheduled flights
Average delay when late
54 min
Flights arriving 15+ minutes late
Flights tracked
18
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 82%
  • Air traffic control & airport 14%
  • Airline (crew, maintenance, cleaning) 3%
  • Extreme weather 0%
  • Security 0%

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

Houston (HOU) to Denver (DEN)

Only 16 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
31 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 56%
  • Air traffic control & airport 44%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to San Diego (SAN)

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

On-time arrivals
84.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
56 min
Flights arriving 15+ minutes late
Flights tracked
13
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 98%
  • Air traffic control & airport 2%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Washington (DCA) to Chicago (MDW)

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

On-time arrivals
55.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
36 min
Flights arriving 15+ minutes late
Flights tracked
9
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 53%
  • Air traffic control & airport 33%
  • Late-arriving aircraft 14%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to New Orleans (MSY)

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

On-time arrivals
33.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
39 min
Flights arriving 15+ minutes late
Flights tracked
9
Scheduled flights in the period

What caused the delays

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

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

Las Vegas (LAS) to Santa Barbara (SBA)

Only 8 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
8
Scheduled flights in the period

Denver (DEN) to Oakland (OAK)

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

What caused the delays

  • Airline (crew, maintenance, cleaning) 72%
  • Air traffic control & airport 17%
  • Late-arriving aircraft 12%
  • Extreme weather 0%
  • Security 0%

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

Dallas (DAL) to Oakland (OAK)

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

Phoenix (PHX) to Kansas City (MCI)

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

Phoenix (PHX) to San Jose (SJC)

Only 4 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
51 min
Flights arriving 15+ minutes late
Flights tracked
4
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 100%
  • Airline (crew, maintenance, cleaning) 0%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Valparaiso (VPS) to Dallas (DAL)

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

Nashville (BNA) to Milwaukee (MKE)

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

El Paso (ELP) to San Antonio (SAT)

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

Las Vegas (LAS) to El Paso (ELP)

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 San Diego (SAN)

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

On-time arrivals
—
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

San Antonio (SAT) 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

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 74.5% 47
October 2025 96.8% 31
November 2025 78.8% 34
December 2025 56.2% 33
January 2026 65.6% 32
February 2026 75.0% 28
March 2026 74.2% 31
April 2026 93.3% 30
May 2026 76.7% 31
June 2026 41.4% 30
July 2026 62.5% 33
August 2026 90.3% 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.