Flight number record

OO 4297

SkyWest Airlines · Detroit to Marquette

Route: DTW → MQT
Departs: 20:20
Flights: 364
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4297, 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 4297 lands a B−, 2 points worse than the national rate of 77.6%. About one flight in four arrives 15 minutes late or worse, and those flights are late by about 2.2 hours on average. That is a workable record, not a spotless one. That rests on 364 flights, with a median arrival 7 minutes early.

On time

76.1%

Arrivals under 15 minutes late, of 331 completed flights

Avg delay

130 min

Across delayed arrivals only, not all flights

Cancelled

7.14%

National rate is 1.81%

1 hour+ late

11.5%

National rate is 8.1%

These figures cover 364 flights between July 2025 and June 2026. Beyond the headline rate, 11.5% 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 4297 flies

OO 4297 flies DTW to MQT without a single fixed slot. Its most common scheduled departure was 20:20, used on 230 of 364 flights, with 21:20 (77 flights) and 21:40 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:20230 flights63.2%
Departs 21:2077 flights21.2%
Departs 21:4041 flights11.3%

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 20:20 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 4297 runs 6 points better at 76.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 4297 next to DTW to MQT

Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 3 points.

OO 4297 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4297thin sample	364	76.1%	130 min	7.14%	B−
All SkyWest Airlines on DTW–MQTthin sample	364	76.1%	130 min	7.14%	B−
All carriers on DTW–MQTthin sample	364	76.1%	130 min	7.14%	B−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4297 quarter by quarter

OO 4297 did not run the same all year. Its best quarter was Apr–Jun 2026 at 83.1% on time and its weakest Jan–Mar 2026 at 66.2%, a swing of 17 points on roughly 91 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 202592 flights80.2%
Oct–Dec 202591 flights73.3%
Jan–Mar 202690 flights66.2%
Apr–Jun 202691 flights83.1%

Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4297 did best on Thursday at 84.8% on time and worst on Friday at 66.0%. Each day rests on about 52 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 4297 runs late

One category carries most of the weight here. Carrier accounts for 66% of the 10,000 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
66%
Extreme weather
27%
National Airspace System
7%

Extreme weather accounts for 27% 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 4.3 times the usual weather exposure. The split is drawn from 10,297 delay minutes reported on OO 4297.

Cancellations run at 7.14%, against 1.81% nationally. That is about one flight in fifteen cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

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. 11.5% 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.

Every one of the 364 flights under OO 4297 in the data flew DTW to MQT. 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. 364 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 4297

For a booking, the cancellation rate is the figure to plan around on OO 4297: 7.14% of its 364 scheduled flights did not operate. A late arrival costs about 2.2 hours, but a cancellation costs the day, so leave a later option open.

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