Flight number record

OO 6448

SkyWest Airlines · Dallas-Fort Worth to South Bend

Route: DFW → SBN
Departs: 12:40
Flights: 275
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 6448, 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 6448 sits in the middle of the pack with a B. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 275 flights, with a median arrival 8 minutes early.

On time

75.1%

Arrivals under 15 minutes late, of 269 completed flights

Avg delay

73 min

Across delayed arrivals only, not all flights

Cancelled

1.82%

National rate is 1.81%

1 hour+ late

9.7%

National rate is 8.1%

These figures cover 275 flights between July 2025 and June 2026. Beyond the headline rate, 9.7% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 6448 flies

OO 6448 flies DFW to SBN without a single fixed slot. Its most common scheduled departure was 12:40, used on 54 of 275 flights, with 12:29 (44 flights) and 13:09 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:4054 flights19.6%
Departs 12:2944 flights16.0%
Departs 13:0937 flights13.5%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 12:40 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and OO 6448 runs 4 points worse at 75.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

OO 6448 next to DFW to SBN

Every carrier on DFW to SBN combined arrived on time 74.2% of the time across 984 flights, so OO 6448 is about level with it. SkyWest flew 845 flights on the same city pair under all its flight numbers, including this one, and those ran 74.1% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 4 points.

OO 6448 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 6448thin sample	275	75.1%	73 min	1.82%	B
All SkyWest Airlines on DFW–SBN	845	74.1%	90 min	1.78%	C
All carriers on DFW–SBN	984	74.2%	86 min	2.13%	C
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 6448 quarter by quarter

OO 6448 did not run the same all year. Its best quarter was Jul–Sep 2025 at 79.3% on time and its weakest Jan–Mar 2026 at 68.2%, a swing of 11 points on roughly 92 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 202587 flights79.3%
Oct–Dec 202592 flights76.9%
Jan–Mar 202690 flights68.2%
Apr–Jun 20266 flights—

Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.

By weekday, OO 6448 did best on Monday at 85.0% on time and worst on Sunday at 64.1%. Each day rests on about 39 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 6448 runs late

One category carries most of the weight here. Carrier accounts for 53% of the 4,901 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
53%
Late-arriving aircraft
20%
Extreme weather
19%
National Airspace System
8%

Extreme weather accounts for 19% 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 3.0 times the usual weather exposure. The split is drawn from 4,901 delay minutes reported on OO 6448.

Cancellations sit at 1.82% against a national 1.81%, which is ordinary. Diversions add another 0.36%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.7% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on five other city pairs in the data, including PHX to STS (44), STS to PHX (44) and SBN to DFW (26), but none flew often enough under OO 6448 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DFW to SBN only.

One caution: this is a thin sample. 275 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 6448

For a booking, read OO 6448 as 75.1% on time with 1.82% cancelled over 275 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures