Carrier route record

OOMOB→ATL

SkyWest Airlines · Mobile to Atlanta

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 MOB to ATL sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 175 flights, with a median arrival 2 minutes early.

The national on-time rate over the same period is 77.6%, so SkyWest on MOB to ATL runs 7 points behind the country as a whole. Across a thousand flights that is about 67 extra late arrivals.

On time

70.9%

Arrivals under 15 minutes late, of 172 completed flights

Avg delay

91 min

Across delayed arrivals only, not all flights

Cancelled

1.71%

National rate is 1.81%

Whole route

83.6%

Every carrier on MOB to ATL, 930 flights

These figures cover 175 flights between July 2025 and June 2026. Beyond the headline rate, 15.1% 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 MOB to ATL

SkyWest flew 175 of the 930 flights on MOB to ATL, about 19% of it. Its 70.9% on time is 13 points worse than the route as a whole, which runs 83.6%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 86.5% to SkyWest at 70.9%.

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 MOB to ATL
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	755	86.5%	80 min	2.38%	A
SkyWest Airlines (this page)thin sample	175	70.9%	91 min	1.71%	C

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am—
8am–11am20 flights—
11am–2pm—
2pm–5pm121 flights74.4%
5pm–8pm34 flights51.6%
8pm–5am—

Scale runs 45% to 80%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 51.6% on time, against 74.4% for the 2pm–5pm slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 121 flights scheduled in it.

Across the year

SkyWest on MOB to ATL through the year

Jul–Sep 202530 flights—
Jan–Mar 202696 flights74.5%
Apr–Jun 202649 flights71.4%

Scale runs 65% to 80%. 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 70.9% on time across 175 flights.

Split by quarter, SkyWest on MOB to ATL logged 30 flights in Jul–Sep 2025, 96 flights in Jan–Mar 2026 and 49 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 70.9% annual figure is the one to use.

Delay causes

Why SkyWest runs late on this route

One category carries most of the weight here. Carrier accounts for 64% of the 4,545 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
64%
Extreme weather
19%
National Airspace System
15%
Security
2%

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 monthly strip above is 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 4,545 reported delay minutes.

The largest share of delay minutes, 64%, 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 2,923 of the 4,545 delay minutes reported here.

Cancellations sit at 1.71% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

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. 15.1% 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 65.5% on time across 175 flights, 5 points below 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 MOB to ATL

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 70.9% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 172 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