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Flight WN2439

Southwest Airlines flight WN2439

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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

Dulles (IAD) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 40 minutes. It was cancelled 0.0% of the time.

On-time arrivals
86.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
40 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 69%
  • Airline (crew, maintenance, cleaning) 20%
  • Security 11%
  • Late-arriving aircraft 0%
  • Extreme weather 0%

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

Chicago (MDW) to Dallas (DAL)

Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 62 minutes. It was cancelled 2.2% of the time.

On-time arrivals
95.5%
Less than 15 minutes late
Cancelled
2.2%
Of scheduled flights
Average delay when late
62 min
Flights arriving 15+ minutes late
Flights tracked
45
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 80%
  • Late-arriving aircraft 14%
  • Air traffic control & airport 6%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Austin (AUS)

Historically, this flight arrives 15+ minutes late 32% of the time, and when it is late the delay averages 50 minutes. It was cancelled 0.0% of the time.

On-time arrivals
67.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
50 min
Flights arriving 15+ minutes late
Flights tracked
28
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 59%
  • Late-arriving aircraft 28%
  • Air traffic control & airport 13%
  • Extreme weather 0%
  • Security 0%

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

Houston (HOU) to Nashville (BNA)

Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.

On-time arrivals
89.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
43 min
Flights arriving 15+ minutes late
Flights tracked
28
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 64%
  • Airline (crew, maintenance, cleaning) 32%
  • Air traffic control & airport 4%
  • Extreme weather 0%
  • Security 0%

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

San Diego (SAN) to San Jose (SJC)

Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 37 minutes. It was cancelled 0.0% of the time.

On-time arrivals
95.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
37 min
Flights arriving 15+ minutes late
Flights tracked
21
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).

Miami (MIA) to Baltimore (BWI)

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

What caused the delays

  • Airline (crew, maintenance, cleaning) 81%
  • Air traffic control & airport 19%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Dallas (DAL) to New Orleans (MSY)

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

On-time arrivals
82.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
41 min
Flights arriving 15+ minutes late
Flights tracked
17
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 39%
  • Late-arriving aircraft 38%
  • Air traffic control & airport 24%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Houston (HOU)

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

On-time arrivals
88.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
25 min
Flights arriving 15+ minutes late
Flights tracked
17
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 51%
  • Airline (crew, maintenance, cleaning) 47%
  • Late-arriving aircraft 2%
  • Extreme weather 0%
  • Security 0%

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

Boston (BOS) to Baltimore (BWI)

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

On-time arrivals
42.9%
Less than 15 minutes late
Cancelled
12.5%
Of scheduled flights
Average delay when late
87 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 48%
  • Air traffic control & airport 44%
  • Extreme weather 5%
  • Airline (crew, maintenance, cleaning) 3%
  • Security 0%

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

Los Angeles (LAX) to Las Vegas (LAS)

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

What caused the delays

  • Late-arriving aircraft 86%
  • Air traffic control & airport 13%
  • Airline (crew, maintenance, cleaning) 1%
  • Extreme weather 0%
  • Security 0%

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

San Jose (SJC) to Denver (DEN)

Only 14 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
54 min
Flights arriving 15+ minutes late
Flights tracked
14
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 45%
  • Air traffic control & airport 35%
  • Late-arriving aircraft 20%
  • Extreme weather 0%
  • Security 0%

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

Baltimore (BWI) to Boston (BOS)

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

On-time arrivals
92.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
100 min
Flights arriving 15+ minutes late
Flights tracked
13
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 99%
  • Airline (crew, maintenance, cleaning) 1%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Boston (BOS)

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

On-time arrivals
46.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
120 min
Flights arriving 15+ minutes late
Flights tracked
13
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 65%
  • Late-arriving aircraft 19%
  • Airline (crew, maintenance, cleaning) 16%
  • Extreme weather 0%
  • Security 0%

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

Baltimore (BWI) to Norfolk (ORF)

Only 12 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
12
Scheduled flights in the period

Kansas City (MCI) to Nashville (BNA)

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 Kansas City (MCI)

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

On-time arrivals
77.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
34 min
Flights arriving 15+ minutes late
Flights tracked
9
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 65%
  • Airline (crew, maintenance, cleaning) 27%
  • Air traffic control & airport 8%
  • Extreme weather 0%
  • Security 0%

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

Kansas City (MCI) to Baltimore (BWI)

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

On-time arrivals
85.7%
Less than 15 minutes late
Cancelled
12.5%
Of scheduled flights
Average delay when late
47 min
Flights arriving 15+ minutes late
Flights tracked
8
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 65%
  • Late-arriving aircraft 30%
  • Airline (crew, maintenance, cleaning) 4%
  • Extreme weather 0%
  • Security 0%

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

Norfolk (ORF) to Orlando (MCO)

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

Atlanta (ATL) to St Louis (STL)

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

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 92.3% 26
October 2025 78.6% 57
November 2025 87.8% 42
December 2025 95.5% 44
January 2026 96.0% 25
February 2026 86.7% 16
March 2026 65.4% 26
April 2026 86.2% 29
May 2026 83.9% 31
June 2026 70.0% 10
July 2026 88.9% 10
August 2026 76.5% 36

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.