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Flight WN1218

Southwest Airlines flight WN1218

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  • Advisory Coastal Flood Statement FLL

    COASTAL FLOOD STATEMENT NOW IN EFFECT THROUGH THURSDAY EVENING

    Weather

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

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Baltimore (BWI) to Miami (MIA)

Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 61 minutes. It was cancelled 0.0% of the time.

On-time arrivals
77.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
61 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 68%
  • Air traffic control & airport 23%
  • Late-arriving aircraft 9%
  • Extreme weather 0%
  • Security 0%

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

Dallas (DAL) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 35% of the time, and when it is late the delay averages 53 minutes. It was cancelled 1.7% of the time.

On-time arrivals
64.9%
Less than 15 minutes late
Cancelled
1.7%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
58
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 69%
  • Extreme weather 17%
  • Airline (crew, maintenance, cleaning) 9%
  • Air traffic control & airport 6%
  • Security 0%

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

Colorado Springs (COS) to Dallas (DAL)

Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 42 minutes. It was cancelled 1.9% of the time.

On-time arrivals
92.2%
Less than 15 minutes late
Cancelled
1.9%
Of scheduled flights
Average delay when late
42 min
Flights arriving 15+ minutes late
Flights tracked
52
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 72%
  • Airline (crew, maintenance, cleaning) 28%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Houston (HOU) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 28% of the time, and when it is late the delay averages 55 minutes. It was cancelled 0.0% of the time.

On-time arrivals
71.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
55 min
Flights arriving 15+ minutes late
Flights tracked
46
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 71%
  • Air traffic control & airport 17%
  • Airline (crew, maintenance, cleaning) 12%
  • Extreme weather 0%
  • Security 0%

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

Los Angeles (LAX) to Oakland (OAK)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 52 minutes. It was cancelled 0.0% of the time.

On-time arrivals
87.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
33
Scheduled flights in the period

What caused the delays

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

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

Nashville (BNA) to Norfolk (ORF)

Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.

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
27
Scheduled flights in the period

Oakland (OAK) to Chicago (MDW)

Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 54 minutes. It was cancelled 0.0% of the time.

On-time arrivals
96.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
54 min
Flights arriving 15+ minutes late
Flights tracked
25
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 88%
  • Air traffic control & airport 12%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Baltimore (BWI) to Houston (HOU)

Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 75 minutes. It was cancelled 0.0% of the time.

On-time arrivals
82.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
75 min
Flights arriving 15+ minutes late
Flights tracked
23
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 71%
  • Air traffic control & airport 28%
  • Late-arriving aircraft 1%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Los Angeles (LAX)

Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 72 minutes. It was cancelled 5.0% of the time.

On-time arrivals
94.7%
Less than 15 minutes late
Cancelled
5.0%
Of scheduled flights
Average delay when late
72 min
Flights arriving 15+ minutes late
Flights tracked
20
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 78%
  • Airline (crew, maintenance, cleaning) 22%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Nashville (BNA) to Miami (MIA)

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

What caused the delays

  • Late-arriving aircraft 84%
  • Airline (crew, maintenance, cleaning) 16%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Cleveland (CLE) to Nashville (BNA)

Only 16 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
16
Scheduled flights in the period

Dallas (DAL) to Little Rock (LIT)

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

What caused the delays

  • Air traffic control & airport 84%
  • Airline (crew, maintenance, cleaning) 16%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Little Rock (LIT) 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
51 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 93%
  • Airline (crew, maintenance, cleaning) 7%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Salt Lake City (SLC)

Only 15 flights on record, which is too few for reliable odds.

On-time arrivals
86.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
74 min
Flights arriving 15+ minutes late
Flights tracked
15
Scheduled flights in the period

What caused the delays

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

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

Los Angeles (LAX) to San Jose (SJC)

Only 15 flights on record, which is too few for reliable odds.

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

What caused the delays

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

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

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

Only 15 flights on record, which is too few for reliable odds.

On-time arrivals
86.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
74 min
Flights arriving 15+ minutes late
Flights tracked
15
Scheduled flights in the period

What caused the delays

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

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

Baltimore (BWI) to Pittsburgh (PIT)

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

On-time arrivals
83.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
37 min
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 60%
  • Security 24%
  • Airline (crew, maintenance, cleaning) 16%
  • Late-arriving aircraft 0%
  • Extreme weather 0%

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

Dallas (DAL) to Fort Lauderdale (FLL)

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
61 min
Flights arriving 15+ minutes late
Flights tracked
9
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 42%
  • Air traffic control & airport 41%
  • Late-arriving aircraft 17%
  • Extreme weather 0%
  • Security 0%

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

Oakland (OAK) to Houston (HOU)

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
38 min
Flights arriving 15+ minutes late
Flights tracked
9
Scheduled flights in the period

What caused the delays

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

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

Houston (HOU) to Los Angeles (LAX)

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
63 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) 15%
  • Late-arriving aircraft 2%
  • Air traffic control & airport 0%
  • Security 0%

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

Chicago (MDW) to New Orleans (MSY)

Only 8 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
66 min
Flights arriving 15+ minutes late
Flights tracked
8
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).

Houston (HOU) to St Louis (STL)

Only 7 flights on record, which is too few for reliable odds.

On-time arrivals
42.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
34 min
Flights arriving 15+ minutes late
Flights tracked
7
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 46%
  • Late-arriving aircraft 41%
  • Air traffic control & airport 12%
  • Extreme weather 0%
  • Security 0%

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

Miami (MIA) to Houston (HOU)

Only 7 flights on record, which is too few for reliable odds.

On-time arrivals
71.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
49 min
Flights arriving 15+ minutes late
Flights tracked
7
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 61%
  • Airline (crew, maintenance, cleaning) 39%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

St Louis (STL) to Los Angeles (LAX)

Only 5 flights on record, which is too few for reliable odds.

On-time arrivals
80.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
53 min
Flights arriving 15+ minutes late
Flights tracked
5
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 78%
  • Airline (crew, maintenance, cleaning) 22%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Dallas (DAL) 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

Los Angeles (LAX) to San Francisco (SFO)

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

Miami (MIA) 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

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 100.0% 26
October 2025 94.1% 34
November 2025 89.4% 66
December 2025 65.0% 60
January 2026 66.7% 34
February 2026 67.9% 28
March 2026 82.5% 58
April 2026 81.0% 42
May 2026 75.0% 40
June 2026 83.0% 48
July 2026 86.8% 53
August 2026 93.8% 32

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.