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Flight WN1943

Southwest Airlines flight WN1943

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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

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  • 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

Baltimore (BWI) to Tampa (TPA)

Historically, this flight arrives 15+ minutes late 32% of the time, and when it is late the delay averages 52 minutes. It was cancelled 5.1% of the time.

On-time arrivals
67.9%
Less than 15 minutes late
Cancelled
5.1%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
59
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 42%
  • Late-arriving aircraft 32%
  • Air traffic control & airport 19%
  • Extreme weather 7%
  • Security 0%

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

Baltimore (BWI) to Austin (AUS)

Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.

On-time arrivals
94.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
47 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

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

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

Houston (HOU) to Albuquerque (ABQ)

Historically, this flight arrives 15+ minutes late 6% of the time, and when it is late the delay averages 89 minutes. It was cancelled 0.0% of the time.

On-time arrivals
94.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
89 min
Flights arriving 15+ minutes late
Flights tracked
36
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 85%
  • Airline (crew, maintenance, cleaning) 15%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Nashville (BNA) to Hartford (BDL)

Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 36 minutes. It was cancelled 3.0% of the time.

On-time arrivals
78.1%
Less than 15 minutes late
Cancelled
3.0%
Of scheduled flights
Average delay when late
36 min
Flights arriving 15+ minutes late
Flights tracked
33
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 61%
  • Airline (crew, maintenance, cleaning) 25%
  • Air traffic control & airport 14%
  • Extreme weather 0%
  • Security 0%

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

Las Vegas (LAS) to Houston (HOU)

Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 41 minutes. It was cancelled 3.7% of the time.

On-time arrivals
69.2%
Less than 15 minutes late
Cancelled
3.7%
Of scheduled flights
Average delay when late
41 min
Flights arriving 15+ minutes late
Flights tracked
27
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 67%
  • Air traffic control & airport 19%
  • Airline (crew, maintenance, cleaning) 14%
  • Extreme weather 0%
  • Security 0%

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

Houston (HOU) to Los Angeles (LAX)

Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 99 minutes. It was cancelled 0.0% of the time.

On-time arrivals
91.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
99 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 96%
  • Airline (crew, maintenance, cleaning) 4%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

San Diego (SAN) to Las Vegas (LAS)

Historically, this flight arrives 15+ minutes late 41% of the time, and when it is late the delay averages 69 minutes. It was cancelled 0.0% of the time.

On-time arrivals
59.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
69 min
Flights arriving 15+ minutes late
Flights tracked
22
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 54%
  • Air traffic control & airport 27%
  • Airline (crew, maintenance, cleaning) 13%
  • Security 7%
  • Extreme weather 0%

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

San Francisco (SFO) to San Diego (SAN)

Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 52 minutes. It was cancelled 0.0% of the time.

On-time arrivals
47.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 74%
  • Air traffic control & airport 15%
  • Airline (crew, maintenance, cleaning) 11%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Lubbock (LBB)

Only 11 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
11
Scheduled flights in the period

Houston (HOU) to Atlanta (ATL)

Only 8 flights on record, which is too few for reliable odds.

On-time arrivals
62.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
49 min
Flights arriving 15+ minutes late
Flights tracked
8
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 58%
  • Security 25%
  • Airline (crew, maintenance, cleaning) 17%
  • Air traffic control & airport 0%
  • Extreme weather 0%

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

Houston (HOU) to San Diego (SAN)

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

What caused the delays

  • Air traffic control & airport 87%
  • Late-arriving aircraft 13%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Las Vegas (LAS) to St Louis (STL)

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

What caused the delays

  • Late-arriving aircraft 89%
  • Airline (crew, maintenance, cleaning) 11%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Los Angeles (LAX) to Salt Lake City (SLC)

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
36 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).

Kansas City (MCI) to San Diego (SAN)

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

What caused the delays

  • Late-arriving aircraft 83%
  • Airline (crew, maintenance, cleaning) 15%
  • Air traffic control & airport 2%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) 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

Louisville (SDF) 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

Tampa (TPA) to New Orleans (MSY)

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 68.0% 26
October 2025 54.5% 55
November 2025 74.1% 30
December 2025 62.1% 29
January 2026 100.0% 4
February 2026 100.0% 10
March 2026 74.1% 28
April 2026 100.0% 30
May 2026 90.3% 31
June 2026 82.6% 23
July 2026 100.0% 22
August 2026 87.1% 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.