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DelayAtlas

Carrier performance at one airport

WN→OMA

Southwest Airlines at Eppley Airfield

Departures
8,001
Period
September 2025 to August 2026
Routes
12
Rank here
#7 of 9
B+GRADE

Southwest Airlines at Omaha lands a B+, 2 points better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 8,001 flights, of which Delta Air Lines flew 1,734 at 88.2% on time.

Measured against the airport rather than the country, Southwest Airlines runs 2 points behind the 80.9% weighted average across all carriers at OMA. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.

Key figures

On time

78.8%

7,912 completed departures

Avg delay

56 min

Across delayed flights only

Cancelled

0.72%

At OMA, this carrier only

Rank here

#7

Of 9 carriers clearing the floor at OMA

These figures cover 8,001 flights between September 2025 and August 2026. The median arrival is 5 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.

Against the competition

Every carrier at OMA, ranked

The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 88.2% of the time; Allegiant Air manages 75.4%. Sample sizes sit next to every figure, because a two-point gap across 641 flights means less than a ten-point one.

On-time performance of all carriers departing OMA
AirlineFlightsOn timeAvg delayCancelledGrade
Delta Air Lines1,73488.2%90 min1.67%A
Alaska Airlines50587.8%72 min0.59%A+
SkyWest Airlines5,56983.2%85 min0.99%B+
American Airlines2,90180.7%114 min2.07%B
Envoy Air1,33380.3%78 min2.78%B
United Airlines3,48279.1%84 min1.15%B
Southwest Airlines (this page)8,00178.8%56 min0.72%B+
Republic Airways59678.0%77 min2.35%B
Allegiant Air64175.4%93 min0.62%B+

The spread between Delta and Allegiant is 13 points, wide enough that it should decide the booking. On a hundred trips that is 13 more arrivals inside the on-time window.

Route by route

Where Southwest Airlines flies from OMA

Southwest Airlines operates 12 routes out of OMA with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.

Southwest Airlines routes from OMA
RouteFlightsOn timeAvg delayCancelledGrade
OMA to DEN · Denver1,38471.8%62 min0.51%C+
OMA to MDW · Chicago1,31781.1%49 min1.29%B
OMA to PHX · Phoenix1,21979.4%54 min0.49%B+
OMA to LAS · Las Vegas1,03481.8%68 min0.58%B+
OMA to STL · St. Louis81288.2%55 min0.49%A+
OMA to DAL · Dallas43379.7%61 min0.92%B+
OMA to BNA · Nashville41075.2%48 min0.49%B+
OMA to HOU · Houston37379.8%45 min0.54%B+
OMA to MCO · Orlandothin sample35780.8%51 min0.56%B+
OMA to DCA · Washingtonthin sample34175.9%55 min1.17%B
OMA to LGA · New Yorkthin sample16774.5%58 min2.40%C
OMA to SAN · San Diegothin sample9651.0%47 min0.00%F+

Departure window

Best time of day for this operation

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 29 points, against 13 points between the best and worst carrier.

  • 5am–8am1,953 flights92.3%
  • 8am–11am745 flights85.9%
  • 11am–2pm1,775 flights81.1%
  • 2pm–5pm1,801 flights70.8%
  • 5pm–8pm1,323 flights67.8%
  • 8pm–5am404 flights63.2%

Scale runs 55% to 100%.

The 8pm–5am window is where this operation falls apart: 63.2% on time, against 92.3% for the 5am–8am 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 5am–8am window is the busiest, with 1,953 flights scheduled in it.

Across the year

Seasonal pattern

On-time rate by calendar month84J85F79M81A77M65J76J75A84S82O81N79D
Darker means more delays. Figures are on-time percentages.February best, June worst

June is the worst month at 65.4% on time, 20 points below February, the best at 85.1%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. June was the busiest month here, with 730 flights.

Delay causes

What holds this operation up

  • Late-arriving aircraft
    53%
  • National Airspace System
    25%
  • Carrier
    20%
  • Extreme weather
    1%
  • Security
    0%

53% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 94,000 reported delay minutes here, that single category outweighs weather by 41 to one. The split is drawn from 93,588 reported delay minutes.

Cancellations are rare at 0.72%, below the national 1.89% 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.

6.3% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.

The sample behind these figures is 8,001 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.

Put together: the calendar is the biggest lever here, not the carrier or the hour. February runs 85.1% on time and June 65.4%, a swing of 20 points. If the dates move at all, move them out of June before you think about anything else. 7,912 completed flights over 12 months sit behind that.

Common questions

Southwest Airlines at OMA

How often is Southwest Airlines at OMA delayed?

About one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 21.2% of the 8,001 flights in this analysis, against 22.7% nationally. Delayed flights are late by about an hour on average.

Which airline is most reliable on Southwest Airlines at OMA?

Delta Air Lines leads at 88.2% on time across 1,734 flights. Allegiant Air is at the other end on 75.4%, a gap of 13 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on Southwest Airlines at OMA?

The 5am–8am departure window is the strongest at 92.3% on time. The 8pm–5am window is the weakest at 63.2%, 29 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are June delays on Southwest Airlines at OMA?

June is the weakest month at 65.4% on time, compared with 85.1% in February. Across the year that is 20 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.