Flight number record
OO 6335
SkyWest Airlines · South Bend to Dallas-Fort Worth
- Route
- SBN → DFW
- Departs
- 08:06
- Flights
- 365
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s OO 6335, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
OO 6335 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land close to two hours behind schedule. That rests on 365 flights, with a median arrival 8 minutes early.
Key figures
On time
74.4%
Arrivals under 15 minutes late, of 359 completed flights
Avg delay
117 min
Across delayed arrivals only, not all flights
Cancelled
1.10%
National rate is 1.89%
1 hour+ late
10.6%
National rate is 8.3%
These figures cover 365 flights between September 2025 and August 2026. Beyond the headline rate, 10.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When OO 6335 flies
OO 6335 flies SBN to DFW without a single fixed slot. Its most common scheduled departure was 08:06, used on 103 of 365 flights, with 07:25 (62 flights) and 07:11 (50 flights) next.
- Departs 08:06103 flights28.2%
- Departs 07:2562 flights17.0%
- Departs 07:1150 flights13.7%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 08:06 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and OO 6335 runs 10 points worse at 74.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 6335 next to SBN to DFW
Every carrier on SBN to DFW combined arrived on time 73.4% of the time across 984 flights, so OO 6335 is about level with it. SkyWest flew 788 flights on the same city pair under all its flight numbers, including this one, and those ran 73.8% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 4 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 6335 | 365 | 74.4% | 117 min | 1.10% | C |
| All SkyWest Airlines on SBN–DFW | 788 | 73.8% | 112 min | 2.03% | C |
| All carriers on SBN–DFW | 984 | 73.4% | 110 min | 2.54% | C |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | B |
Across the year
OO 6335 quarter by quarter
OO 6335 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.0% on time and its weakest Oct–Dec 2025 at 67.4%, a swing of 23 points on roughly 73 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights90.0%
- Oct–Dec 202592 flights67.4%
- Jan–Mar 202690 flights70.9%
- Apr–Jun 202691 flights75.3%
- Jul–Sep 202662 flights80.6%
Scale runs 60% to 95%.
By weekday, OO 6335 did best on Wednesday at 84.6% on time and worst on Saturday at 63.3%. Each day rests on about 52 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 6335 runs when it is late
OO 6335 often beats the schedule: 147 of 359 completed flights, 41%, arrived 15 minutes or more early. The 92 late arrivals split 32 under half an hour, 22 between 30 and 60 minutes, and 38 an hour or more.
- 15+ min early147 flights40.9%
- Within 15 min120 flights33.4%
- 15–29 min late32 flights8.9%
- 30–59 min late22 flights6.1%
- 1–2 hours late15 flights4.2%
- 2+ hours late23 flights6.4%
Scale runs 0% to 100%.
Share of 359 completed flights by arrival against schedule.
17 of 81 late departures made up the time and arrived on time, 21% of them. In the other direction, 28 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at DFW.
The worst days
Worst days for OO 6335
The latest arrival of the period was on 9 December 2025, 15 hours 42 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 December 2025 | 15 hours 42 minutes | Carrier |
| 13 July 2026 | 9 hours 30 minutes | Carrier |
| 30 November 2025 | 8 hours 36 minutes | Extreme weather |
| 29 March 2026 | 7 hours 35 minutes | Late-arriving aircraft |
| 28 February 2026 | 7 hours 10 minutes | Carrier |
Delay causes
Why OO 6335 runs late
Carrier accounts for 48% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Carrier
- 25%Extreme weather
- 20%Late-arriving aircraft
- 8%National Airspace System
Extreme weather accounts for 25% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.1 times the usual weather exposure. The split is drawn from 10,749 delay minutes reported on OO 6335.
Cancellations sit at 1.10% against a national 1.89%, which is ordinary. Diversions add another 0.55%.
Connections and routes
What a delay on this flight costs
10.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 846 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 365 flights under OO 6335 in the data flew SBN to DFW. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 365 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking OO 6335
For a booking, read OO 6335 as 74.4% on time with 1.10% cancelled over 365 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SBN to DFW, every carrier and departure
- DFW to SBN, the return direction
- Dallas/Fort Worth International (DFW) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- How often a connection fails at the major US hubs
A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.