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Flight WN397

Southwest Airlines flight WN397

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Looking for WN397 in the air…

Alerts at this flight's airports

  • 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 Airport Closure SNA

    Airport Closure at John Wayne Orange County International Airport (SNA): Reopens Nov 08 at 14:15 UTC.

    Airport status

  • 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

San Juan (SJU) to Orlando (MCO)

Historically, this flight arrives 15+ minutes late 2% of the time, and when it is late the delay averages 77 minutes. It was cancelled 1.6% of the time.

On-time arrivals
98.4%
Less than 15 minutes late
Cancelled
1.6%
Of scheduled flights
Average delay when late
77 min
Flights arriving 15+ minutes late
Flights tracked
64
Scheduled flights in the period

What caused the delays

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

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

Austin (AUS) to San Jose (SJC)

Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 32 minutes. It was cancelled 0.0% of the time.

On-time arrivals
83.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
32 min
Flights arriving 15+ minutes late
Flights tracked
55
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 78%
  • Late-arriving aircraft 16%
  • Air traffic control & airport 6%
  • Extreme weather 0%
  • Security 0%

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

San Jose (SJC) to Santa Ana (SNA)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 76 minutes. It was cancelled 1.9% of the time.

On-time arrivals
90.2%
Less than 15 minutes late
Cancelled
1.9%
Of scheduled flights
Average delay when late
76 min
Flights arriving 15+ minutes late
Flights tracked
52
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 85%
  • Airline (crew, maintenance, cleaning) 13%
  • Air traffic control & airport 2%
  • Extreme weather 0%
  • Security 0%

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

Pittsburgh (PIT) to Las Vegas (LAS)

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
31
Scheduled flights in the period

Honolulu, Oahu (HNL) to Phoenix (PHX)

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
29
Scheduled flights in the period

St Louis (STL) to Chicago (MDW)

Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 42 minutes. It was cancelled 4.2% of the time.

On-time arrivals
91.3%
Less than 15 minutes late
Cancelled
4.2%
Of scheduled flights
Average delay when late
42 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 70%
  • Air traffic control & airport 30%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Salt Lake City (SLC)

Historically, this flight arrives 15+ minutes late 35% of the time, and when it is late the delay averages 69 minutes. It was cancelled 0.0% of the time.

On-time arrivals
65.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
69 min
Flights arriving 15+ minutes late
Flights tracked
23
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).

Phoenix (PHX) to Houston (HOU)

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

On-time arrivals
72.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
38 min
Flights arriving 15+ minutes late
Flights tracked
18
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 45%
  • Late-arriving aircraft 43%
  • Airline (crew, maintenance, cleaning) 12%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to San Jose (SJC)

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
99 min
Flights arriving 15+ minutes late
Flights tracked
16
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).

Austin (AUS) to Phoenix (PHX)

Only 12 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
26 min
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 69%
  • Airline (crew, maintenance, cleaning) 31%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Reno (RNO) to Las Vegas (LAS)

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
171 min
Flights arriving 15+ minutes late
Flights tracked
12
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 83%
  • Late-arriving aircraft 17%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Phoenix (PHX) to Austin (AUS)

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

What caused the delays

  • Air traffic control & airport 36%
  • Airline (crew, maintenance, cleaning) 33%
  • Late-arriving aircraft 31%
  • Extreme weather 0%
  • Security 0%

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

Santa Ana (SNA) to Phoenix (PHX)

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

On-time arrivals
88.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
67 min
Flights arriving 15+ minutes late
Flights tracked
9
Scheduled flights in the period

What caused the delays

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

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

Kansas City (MCI) to Panama City Beach (ECP)

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

What caused the delays

  • Air traffic control & airport 70%
  • Late-arriving aircraft 16%
  • Airline (crew, maintenance, cleaning) 14%
  • Extreme weather 0%
  • Security 0%

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

St Louis (STL) to New Orleans (MSY)

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

On-time arrivals
85.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
36 min
Flights arriving 15+ minutes late
Flights tracked
7
Scheduled flights in the period

What caused the delays

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

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

Austin (AUS) to San Francisco (SFO)

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

What caused the delays

  • Airline (crew, maintenance, cleaning) 54%
  • Late-arriving aircraft 23%
  • Air traffic control & airport 23%
  • Extreme weather 0%
  • Security 0%

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

Chicago (MDW) to St Louis (STL)

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

Chicago (MDW) to Richmond (RIC)

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 Diego (SAN)

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

What caused the delays

  • Air traffic control & airport 65%
  • Extreme weather 18%
  • Late-arriving aircraft 17%
  • Airline (crew, maintenance, cleaning) 0%
  • Security 0%

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

Richmond (RIC) to Orlando (MCO)

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

What caused the delays

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

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

Washington (DCA) 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 Orlando (MCO)

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

Fresno (FAT) 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

Chicago (MDW) to Louisville (SDF)

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

Oklahoma City (OKC) 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

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

St Louis (STL) to Philadelphia (PHL)

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
On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 100.0% 30
October 2025 100.0% 31
November 2025 100.0% 30
December 2025 100.0% 31
January 2026 90.0% 31
February 2026 75.0% 28
March 2026 71.0% 31
April 2026 85.2% 27
May 2026 84.6% 27
June 2026 84.4% 45
July 2026 91.5% 48
August 2026 65.9% 41

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

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