ON TIMEBOARD
SBN South Bend / IAD Washington

SBN → IAD on time

South Bend (South Bend, IN) to Washington Dulles (Washington, DC). Every scheduled flight, September 2025 to August 2026.

On time
77%
arrived < 15 min late
Cancelled
1.3%
383 flights
Typical arrival
−8 min
median vs schedule
When late
+100 min
average delay
Flights / day
1
1 airline

77% of flights from South Bend to Washington arrived on time over the past 12 months. That is about the typical U.S. route. 11% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for SBN → IAD: when a flight was late, it was under 45 minutes late 43% of the time. About 1 in 10 flights landed an hour or more late, and 1 in 24 three hours or more; 1.3% were cancelled outright.

Share of all 383 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines38377%1.3%−8 min9.9%+100 minMesa Airlines 78%, Republic Airways 22%

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at SBN). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%9 a.m. departures: 81% on time (274 flights)819a10 a.m. departures: too few flights (91 flights)10a
SBN → IAD, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

By month

Each calendar month pooled over 2023–2026.

40%70%100%Jan: too few flights (62 flights)JanFeb: too few flights (56 flights)FebMar: too few flights (62 flights)MarApr: too few flights (60 flights)AprMay: too few flights (62 flights)MayJun: too few flights (60 flights)JunJul: too few flights (62 flights)JulAug: too few flights (80 flights)AugSep: too few flights (30 flights)SepOct: too few flights (31 flights)OctNov: too few flights (30 flights)NovDec: too few flights (59 flights)Dec

By day of week

DayFlightsOn timeCancelled
Monday56——
Tuesday52——
Wednesday55——
Thursday55——
Friday55——
Saturday55——
Sunday55——

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Airline (crew, maintenance, ops) 36%Late inbound plane 33%Air traffic & airport (NAS) 17%Severe weather 13%

Cancellations: weather 4 · air traffic/airport 1

Month by month

Not enough months with data to draw a trend.

Questions

How often are flights from SBN to IAD on time?

77% of 383 scheduled flights from South Bend, IN to Washington, DC arrived within 15 minutes of schedule between September 2025 and August 2026. 1.3% were cancelled.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.