Flight WN4048

Southwest Airlines flight WN4048

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Looking for WN4048 in the air…

Las Vegas (LAS) to Long Beach (LGB)

Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 62 minutes. It was cancelled 0.0% of the time.

On-time arrivals

83.0%

Less than 15 minutes late

Cancelled

0.0%

Of scheduled flights

Average delay when late

62 min

Flights arriving 15+ minutes late

Flights tracked

53

Scheduled flights in the period

What caused the delays

• Late-arriving aircraft 82%
• Airline (crew, maintenance, cleaning) 17%
• Air traffic control & airport 0%
• Extreme weather 0%
• Security 0%

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

Tampa (TPA) to St Louis (STL)

Historically, this flight arrives 15+ minutes late 2% of the time, and when it is late the delay averages 81 minutes. It was cancelled 0.0% of the time.

On-time arrivals

98.1%

Less than 15 minutes late

Cancelled

0.0%

Of scheduled flights

Average delay when late

81 min

Flights arriving 15+ minutes late

Flights tracked

52

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).

Fort Myers (RSW) to St Louis (STL)

Historically, this flight arrives 15+ minutes late 2% of the time, and when it is late the delay averages 87 minutes. It was cancelled 0.0% of the time.

On-time arrivals

97.5%

Less than 15 minutes late

Cancelled

0.0%

Of scheduled flights

Average delay when late

87 min

Flights arriving 15+ minutes late

Flights tracked

40

Scheduled flights in the period

What caused the delays

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

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

Kahului (OGG) to Honolulu, Oahu (HNL)

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

Phoenix (PHX) to Austin (AUS)

Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 64 minutes. It was cancelled 0.0% of the time.

On-time arrivals

83.9%

Less than 15 minutes late

Cancelled

0.0%

Of scheduled flights

Average delay when late

64 min

Flights arriving 15+ minutes late

Flights tracked

31

Scheduled flights in the period

What caused the delays

• Air traffic control & airport 93%
• Airline (crew, maintenance, cleaning) 5%
• Late-arriving aircraft 2%
• Extreme weather 0%
• Security 0%

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

Raleigh/Durham (RDU) to Las Vegas (LAS)

Only 19 flights on record, which is too few for reliable odds.

On-time arrivals

88.2%

Less than 15 minutes late

Cancelled

10.5%

Of scheduled flights

Average delay when late

42 min

Flights arriving 15+ minutes late

Flights tracked

19

Scheduled flights in the period

What caused the delays

• Late-arriving aircraft 41%
• Airline (crew, maintenance, cleaning) 30%
• Air traffic control & airport 30%
• Extreme weather 0%
• Security 0%

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

Portland (PDX) to San Jose (SJC)

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

On-time arrivals

69.2%

Less than 15 minutes late

Cancelled

0.0%

Of scheduled flights

Average delay when late

28 min

Flights arriving 15+ minutes late

Flights tracked

13

Scheduled flights in the period

What caused the delays

• Late-arriving aircraft 46%
• Airline (crew, maintenance, cleaning) 42%
• Air traffic control & airport 12%
• Extreme weather 0%
• Security 0%

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

Grand Rapids (GRR) to Baltimore (BWI)

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

Salt Lake City (SLC) to Las Vegas (LAS)

Only 8 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

60 min

Flights arriving 15+ minutes late

Flights tracked

8

Scheduled flights in the period

What caused the delays

• Airline (crew, maintenance, cleaning) 49%
• Late-arriving aircraft 41%
• Air traffic control & airport 10%
• Extreme weather 0%
• Security 0%

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

Sacramento (SMF) to Denver (DEN)

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

Kansas City (MCI) to Las Vegas (LAS)

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

Oct 2025 Aug 2026

Show as table

Month	On time	Flights
October 2025	100.0%	30
November 2025	68.8%	16
December 2025	100.0%	13
January 2026	90.6%	34
February 2026	80.0%	46
March 2026	70.6%	17
April 2026	94.4%	18
May 2026	100.0%	23
June 2026	100.0%	24
July 2026	96.3%	27
August 2026	100.0%	14

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