Flight number record

OO 5672

SkyWest Airlines · Memphis to Chicago

Route: MEM → ORD
Departs: 09:55
Flights: 361
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 5672, 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 5672 lands a B, 5 points better than the national rate of 77.6%. About one flight in six arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 361 flights, with a median arrival 10 minutes early.

Set against the rest of the country, OO 5672's record is 5 points better than the US average of 77.6%. That gap is worth roughly 53 fewer late arrivals for every thousand flights.

On time

82.9%

Arrivals under 15 minutes late, of 356 completed flights

Avg delay

95 min

Across delayed arrivals only, not all flights

Cancelled

1.11%

National rate is 1.81%

1 hour+ late

7.0%

National rate is 8.1%

These figures cover 361 flights between July 2025 and June 2026. The median arrival is 10 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When OO 5672 flies

OO 5672 flies MEM to ORD without a single fixed slot. Its most common scheduled departure was 09:55, used on 56 of 361 flights, with 09:54 (49 flights) and 11:00 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:5556 flights15.5%
Departs 09:5449 flights13.6%
Departs 11:0037 flights10.2%

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 09:55 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 5672 runs level with that at 82.9%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 5672 next to MEM to ORD

Every carrier on MEM to ORD combined arrived on time 76.0% of the time across 2,473 flights, so OO 5672 is 7 points ahead of it. SkyWest flew 835 flights on the same city pair under all its flight numbers, including this one, and those ran 73.1% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 4 points.

OO 5672 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 5672thin sample	361	82.9%	95 min	1.11%	B
All SkyWest Airlines on MEM–ORD	835	73.1%	90 min	2.28%	C
All carriers on MEM–ORD	2,473	76.0%	79 min	3.15%	B−
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 5672 quarter by quarter

OO 5672 did not run the same all year. Its best quarter was Jul–Sep 2025 at 88.0% on time and its weakest Jan–Mar 2026 at 76.7%, a swing of 11 points on roughly 90 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 flights88.0%
Oct–Dec 202591 flights81.1%
Jan–Mar 202688 flights76.7%
Apr–Jun 202690 flights85.2%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 5672 did best on Thursday at 89.8% on time and worst on Tuesday at 75.0%. Each day rests on about 52 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 5672 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 5,772 reported delay minutes.

Carrier
38%
Late-arriving aircraft
36%
National Airspace System
21%
Extreme weather
6%

36% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 5,772 reported delay minutes here, that single category outweighs weather by 6 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 5,772 delay minutes reported on OO 5672.

Cancellations sit at 1.11% against a national 1.81%, which is ordinary. Diversions add another 0.28%.

Connections and routes

What a delay on this flight costs

7.0% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.

The same number turns up on two other city pairs in the data, including ORD to DLH (16) and IAH to BHM (1), but none flew often enough under OO 5672 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to MEM to ORD only.

One caution: this is a thin sample. 361 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 5672

For a booking, read OO 5672 as 82.9% on time with 1.11% cancelled over 361 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