Carrier route record

OOATL→MOB

SkyWest Airlines · Atlanta to Mobile

Flights: 175
Period: July 2025 to June 2026
Share of route: 19%
Carriers: 2

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on ATL to MOB draws a C+. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 175 flights, with a median arrival right on schedule.

The national on-time rate over the same period is 77.6%, so SkyWest on ATL to MOB runs 12 points behind the country as a whole. Across a thousand flights that is about 121 extra late arrivals.

On time

65.5%

Arrivals under 15 minutes late, of 174 completed flights

Avg delay

87 min

Across delayed arrivals only, not all flights

Cancelled

0.57%

National rate is 1.81%

Whole route

79.8%

Every carrier on ATL to MOB, 930 flights

These figures cover 175 flights between July 2025 and June 2026. Beyond the headline rate, 19.0% 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.

Carrier by carrier

SkyWest against every carrier on ATL to MOB

SkyWest flew 175 of the 930 flights on ATL to MOB, about 19% of it. Its 65.5% on time is 14 points worse than the route as a whole, which runs 79.8%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 83.2% to SkyWest at 65.5%.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on ATL to MOB
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	755	83.2%	78 min	2.38%	B
SkyWest Airlines (this page)thin sample	175	65.5%	87 min	0.57%	C+

Departure window

When SkyWest runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 175 flights.

There are not enough flights in each departure window to split SkyWest's ATL to MOB record by time of day without the percentages moving on noise. The headline rate of 65.5% is the reliable figure here.

Across the year

SkyWest on ATL to MOB through the year

Jul–Sep 202530 flights56.7%
Jan–Mar 202696 flights68.4%
Apr–Jun 202649 flights65.3%

Scale runs 50% to 75%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 65.5% on time across 175 flights.

SkyWest on ATL to MOB did not run the same all year. Its best quarter was Jan–Mar 2026 at 68.4% on time and its weakest Jul–Sep 2025 at 56.7%, a swing of 12 points on roughly 58 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.

Delay causes

Why SkyWest runs late on this route

One category carries most of the weight here. Carrier accounts for 68% of the 5,204 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
68%
Extreme weather
15%
National Airspace System
14%
Security
2%

Extreme weather accounts for 15% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.4 times the usual weather exposure. The split is drawn from 5,204 reported delay minutes.

The largest share of delay minutes, 68%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,545 of the 5,204 delay minutes reported here.

Cancellations are rare at 0.57%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 19.0% 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.

At 302 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 2pm–5pm window matters as much as it does.

The return leg is a different operation and performs like one: it runs 70.9% on time across 175 flights, 5 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 5 points of difference.

One caution: this is a thin sample. 175 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 SkyWest on ATL to MOB

Put together: treat all of this as provisional. 175 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 65.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 174 completed flights over 12 months sit behind that.

Where to go next

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