IAD to SBN flight delays
Washington, VA (IAD) South Bend, IN (SBN) · 504 miles
267 flights · July 2024 – July 2026 · US Bureau of Transportation Statistics
80.84%
Arrived on time
Within 15 minutes of schedule
2.25%
Cancelled
Share of scheduled flights
95 min
When late, late by
Average across delayed arrivals
19 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 95 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The season swings this route hard. In October it ran 24.9 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
Only Republic Airways flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 267 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
Which airline should you fly on this route?
Over July 2024 – July 2026, Republic Airways arrived on time most often on IAD to SBN. Flights ran closest to schedule in August and worst in July.
Every airline on IAD to SBN
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Republic Airways | 266 | 80.77% | 2.26% | 95 min | C |
| United Airlines | 1 | 100% | 0% | — | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
SBN to IAD South Bend back to Washington 85.77% on time BOther routes from Washington
Common questions
Are flights from Washington to South Bend usually delayed?
80.84% of flights on the IAD to SBN route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Washington to South Bend?
Only Republic Airways appears in the published record on this route, with 266 flights and 80.77% arriving on time.
How often are IAD to SBN flights cancelled?
2.25% of scheduled flights did not operate — about 23 in every thousand. That is in the normal range.
What is the best month to fly Washington to South Bend?
October, when 88.5% of flights arrived on time. The worst was July at 63.6%.
When IAD to SBN flights are late, how late are they?
About 95 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on IAD to SBN during July 2024 – July 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →