South Bend International in September 2025

86.7%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In September 2025, reporting carriers scheduled 661 domestic departures from South Bend International (SBN). 86.7% left less than 15 minutes late and 83.4% reached their destination on time; 0.3% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so SBN departures were 3.6 points above the national departure figure.

A year earlier, in September 2024, the airport had 580 departures with 83.3% leaving on time: a change of +3.4 points, with flights up 14%.

Flights arriving at SBN that month were on time 83.2% of the time (661 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 57%, extreme weather 16% and late-arriving aircraft 16%.

On time 83.4%
Arrived 15+ minutes late 16.0%
Cancelled 0.3%
Diverted 0.3%

Every scheduled departure from SBN in September 2025, judged by arrival at the destination.

September 2025 against a year earlier, the airport's year and the nation

Measure	Sep 2025	Sep 2024	SBN, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	86.7%	83.3%	74.0%	83.1%
Arrived on time	83.4%	81.0%	70.3%	82.8%
Cancelled	0.3%	0.5%	2.5%	0.5%
Average departure delay (late minutes only)	12.0 min	13.9 min	27.3 min	12.2 min
Scheduled departures a day	22	19	22	18,748
Scheduled departures	661	580	8,096	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	463	70%	80.6%	5.3 min	0.4%
OH PSA Airlines	90	14%	95.6%	-13.3 min	0.0%
G4 Allegiant Air	60	9%	85.0%	0.6 min	0.0%
YX Republic Airline	40	6%	90.0%	-1.2 min	0.0%
UA United Airlines	6	1%	50.0%	15.8 min	0.0%
DL Delta Air Lines	2	0%	100.0%	-8.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SBN–ORD	South Bend to Chicago	206	71.8%	13.1 min	0.5%
SBN–CLT	South Bend to Charlotte	90	95.6%	-13.3 min	0.0%
SBN–DFW	South Bend to Dallas/Fort Worth	90	81.1%	-2.6 min	1.1%
SBN–ATL	South Bend to Atlanta	81	88.9%	-3.9 min	0.0%
SBN–DTW	South Bend to Detroit	60	90.0%	6.5 min	0.0%
SBN–IAD	South Bend to Washington	30	96.7%	-7.9 min	0.0%
SBN–MSP	South Bend to Minneapolis	30	90.0%	-1.1 min	0.0%
SBN–SFB	South Bend to Sanford	13	84.6%	11.1 min	0.0%
SBN–AZA	South Bend to Phoenix	10	100.0%	-13.7 min	0.0%
SBN–PGD	South Bend to Punta Gorda	10	80.0%	-1.5 min	0.0%
SBN–FLL	South Bend to Fort Lauderdale	9	77.8%	-7.1 min	0.0%
SBN–PIE	South Bend to St. Petersburg	9	100.0%	-6.0 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2025	Minutes
Air carrier	56.8%	34.3%	4,549
Late-arriving aircraft	16.0%	37.4%	1,283
National Aviation System	10.9%	22.6%	870
Extreme weather	16.3%	5.6%	1,306
Security	0.0%	0.1%	0

8,008 delay minutes on 106 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left SBN on time in September 2025?

86.7% of 661 scheduled domestic departures left less than 15 minutes late, and 83.4% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 83.3% of 580 departures left on time and 0.5% were cancelled, against 86.7% and 0.3% in September 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SBN · methodology · corrections.