Flight WN4963

Southwest Airlines flight WN4963

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Looking for WN4963 in the air…

Tampa (TPA) to Kansas City (MCI)

Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 45 minutes. It was cancelled 0.0% of the time.

On-time arrivals

95.0%

Less than 15 minutes late

Cancelled

0.0%

Of scheduled flights

Average delay when late

45 min

Flights arriving 15+ minutes late

Flights tracked

60

Scheduled flights in the period

What caused the delays

• Airline (crew, maintenance, cleaning) 65%
• Extreme weather 20%
• Air traffic control & airport 15%
• Late-arriving aircraft 0%
• Security 0%

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

Baltimore (BWI) to Manchester (MHT)

Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 64 minutes. It was cancelled 0.0% of the time.

On-time arrivals

96.6%

Less than 15 minutes late

Cancelled

0.0%

Of scheduled flights

Average delay when late

64 min

Flights arriving 15+ minutes late

Flights tracked

58

Scheduled flights in the period

What caused the delays

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

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

Las Vegas (LAS) to Birmingham (BHM)

Only 12 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

105 min

Flights arriving 15+ minutes late

Flights tracked

12

Scheduled flights in the period

What caused the delays

• Late-arriving aircraft 83%
• Extreme weather 10%
• Air traffic control & airport 6%
• Airline (crew, maintenance, cleaning) 1%
• Security 0%

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

Burbank (BUR) to Las Vegas (LAS)

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

Las Vegas (LAS) to San Antonio (SAT)

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

Columbus (CMH) to Tampa (TPA)

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

58 min

Flights arriving 15+ minutes late

Flights tracked

9

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 El Paso (ELP)

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

El Paso (ELP) to Phoenix (PHX)

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

Manchester (MHT) to Tampa (TPA)

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

39 min

Flights arriving 15+ minutes late

Flights tracked

5

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 Amarillo (AMA)

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

23 min

Flights arriving 15+ minutes late

Flights tracked

4

Scheduled flights in the period

What caused the delays

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

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

Phoenix (PHX) 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

Denver (DEN) to Baltimore (BWI)

Only 2 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

2

Scheduled flights in the period

Denver (DEN) to San Antonio (SAT)

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 New York (LGA)

Only 1 flight 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

161 min

Flights arriving 15+ minutes late

Flights tracked

1

Scheduled flights in the period

What caused the delays

• Late-arriving aircraft 91%
• Airline (crew, maintenance, cleaning) 9%
• Air traffic control & airport 0%
• Extreme weather 0%
• Security 0%

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

Sep 2025 Aug 2026

Show as table

Month	On time	Flights
September 2025	100.0%	18
October 2025	100.0%	2
November 2025	50.0%	2
December 2025	95.7%	23
January 2026	87.5%	32
February 2026	100.0%	29
March 2026	100.0%	4
June 2026	92.6%	27
July 2026	96.7%	30
August 2026	73.7%	19

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