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Flight WN3908

Southwest Airlines flight WN3908

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Looking for WN3908 in the air…

  • 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

St Louis (STL) to Washington (DCA)

Historically, this flight arrives 15+ minutes late 56% of the time, and when it is late the delay averages 68 minutes. It was cancelled 1.7% of the time.

On-time arrivals
44.1%
Less than 15 minutes late
Cancelled
1.7%
Of scheduled flights
Average delay when late
68 min
Flights arriving 15+ minutes late
Flights tracked
60
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 49%
  • Air traffic control & airport 34%
  • Airline (crew, maintenance, cleaning) 13%
  • Extreme weather 4%
  • Security 1%

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

Boston (BOS) to Nashville (BNA)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 178 minutes. It was cancelled 0.0% of the time.

On-time arrivals
88.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
178 min
Flights arriving 15+ minutes late
Flights tracked
50
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 95%
  • Air traffic control & airport 5%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

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

Oakland (OAK) to San Diego (SAN)

Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 49 minutes. It was cancelled 2.2% of the time.

On-time arrivals
47.7%
Less than 15 minutes late
Cancelled
2.2%
Of scheduled flights
Average delay when late
49 min
Flights arriving 15+ minutes late
Flights tracked
45
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 55%
  • Air traffic control & airport 32%
  • Airline (crew, maintenance, cleaning) 11%
  • Extreme weather 2%
  • Security 0%

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

Boston (BOS) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 53% of the time, and when it is late the delay averages 66 minutes. It was cancelled 3.2% of the time.

On-time arrivals
46.7%
Less than 15 minutes late
Cancelled
3.2%
Of scheduled flights
Average delay when late
66 min
Flights arriving 15+ minutes late
Flights tracked
31
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 81%
  • Airline (crew, maintenance, cleaning) 16%
  • Air traffic control & airport 2%
  • Extreme weather 0%
  • Security 0%

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

Kahului (OGG) 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
31
Scheduled flights in the period

Indianapolis (IND) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 33 minutes. It was cancelled 0.0% of the time.

On-time arrivals
88.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
33 min
Flights arriving 15+ minutes late
Flights tracked
26
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 55%
  • Air traffic control & airport 27%
  • Airline (crew, maintenance, cleaning) 19%
  • Extreme weather 0%
  • Security 0%

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

Tampa (TPA) to Nashville (BNA)

Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 89 minutes. It was cancelled 0.0% of the time.

On-time arrivals
95.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
89 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 74%
  • Late-arriving aircraft 14%
  • Extreme weather 12%
  • Airline (crew, maintenance, cleaning) 0%
  • Security 0%

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

Nashville (BNA) to Indianapolis (IND)

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

What caused the delays

  • Airline (crew, maintenance, cleaning) 52%
  • Late-arriving aircraft 48%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

Denver (DEN) to Oakland (OAK)

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

What caused the delays

  • Late-arriving aircraft 54%
  • Airline (crew, maintenance, cleaning) 38%
  • Air traffic control & airport 8%
  • Extreme weather 0%
  • Security 0%

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

Baltimore (BWI) to Atlanta (ATL)

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

On-time arrivals
37.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
45 min
Flights arriving 15+ minutes late
Flights tracked
8
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 52%
  • Extreme weather 26%
  • Late-arriving aircraft 22%
  • Air traffic control & airport 0%
  • Security 0%

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

Raleigh/Durham (RDU) to Phoenix (PHX)

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

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% 30
October 2025 46.7% 31
November 2025 60.7% 29
December 2025 41.4% 29
January 2026 50.0% 6
March 2026 42.9% 7
April 2026 87.8% 41
May 2026 85.1% 47
June 2026 55.9% 34
July 2026 41.4% 30
August 2026 93.5% 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.