Flight number record
DL 1157
Delta Air Lines · Omaha to Atlanta
- Route
- OMA → ATL
- Departs
- 07:00
- Flights
- 319
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s DL 1157, check with Delta Air Lines.
DL 1157 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 319 flights, with a median arrival 15 minutes early.
Set against the rest of the country, DL 1157's record is 15 points better than the US average of 77.3%. That gap is worth roughly 147 fewer late arrivals for every thousand flights.
Key figures
On time
92.0%
Arrivals under 15 minutes late, of 314 completed flights
Avg delay
81 min
Across delayed arrivals only, not all flights
Cancelled
1.57%
National rate is 1.89%
1 hour+ late
2.5%
National rate is 8.3%
These figures cover 319 flights between September 2025 and August 2026. The median arrival is 15 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.
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Schedule
When DL 1157 flies
DL 1157 flies OMA to ATL without a single fixed slot. Its most common scheduled departure was 07:00, used on 105 of 319 flights, with 07:04 (58 flights) and 07:01 (53 flights) next.
- Departs 07:00105 flights32.9%
- Departs 07:0458 flights18.2%
- Departs 07:0153 flights16.6%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and DL 1157 runs 3 points better at 92.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
DL 1157 next to OMA to ATL
Every carrier on OMA to ATL combined arrived on time 87.3% of the time across 1,786 flights, so DL 1157 is 5 points ahead of it. Delta flew 1,728 flights on the same city pair under all its flight numbers, including this one, and those ran 88.2% on time. Across its whole network Delta Air Lines managed 81.1%, which this flight beats by 11 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1157thin sample | 319 | 92.0% | 81 min | 1.57% | A |
| All Delta Air Lines on OMA–ATL | 1,728 | 88.2% | 90 min | 1.68% | A |
| All carriers on OMA–ATL | 1,786 | 87.3% | 94 min | 1.62% | A |
| Delta Air Lines, whole network | 1,039,517 | 81.1% | 71 min | 1.74% | B |
Across the year
DL 1157 quarter by quarter
DL 1157 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jan–Mar 2026 at 88.2%, a swing of 12 points on roughly 64 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 202530 flights100.0%
- Oct–Dec 202592 flights91.0%
- Jan–Mar 202652 flights88.2%
- Apr–Jun 202691 flights91.1%
- Jul–Sep 202654 flights94.4%
Scale runs 80% to 100%.
By weekday, DL 1157 did best on Wednesday at 97.7% on time and worst on Sunday at 85.1%. Each day rests on about 46 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late DL 1157 runs when it is late
DL 1157 often beats the schedule: 161 of 314 completed flights, 51%, arrived 15 minutes or more early. The 25 late arrivals split 10 under half an hour, 7 between 30 and 60 minutes, and 8 an hour or more.
- 15+ min early161 flights51.3%
- Within 15 min128 flights40.8%
- 15–29 min late10 flights3.2%
- 30–59 min late7 flights2.2%
- 1–2 hours late5 flights1.6%
- 2+ hours late3 flights1.0%
Scale runs 0% to 100%.
Share of 314 completed flights by arrival against schedule.
Only 17 of 314 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for DL 1157
The latest arrival of the period was on 31 July 2026, 9 hours 45 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 31 July 2026 | 9 hours 45 minutes | Carrier |
| 16 March 2026 | 5 hours 41 minutes | Carrier |
| 28 December 2025 | 3 hours 28 minutes | Carrier |
| 30 November 2025 | 1 hour 50 minutes | Carrier |
| 26 January 2026 | 1 hour 23 minutes | Carrier |
Delay causes
Why DL 1157 runs late
Carrier accounts for 78% of the 2,023 delay minutes carriers reported here, and the remaining four split what is left.
- 78%Carrier
- 17%National Airspace System
- 5%Extreme weather
The largest share of delay minutes, 78%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,582 of the 2,023 delay minutes reported here. The split is drawn from 2,023 delay minutes reported on DL 1157.
Cancellations sit at 1.57% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.5% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 821 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on three other city pairs in the data, including PHX to BOS (16), AGS to ATL (13) and ATL to AGS (13), but none flew often enough under DL 1157 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to OMA to ATL only.
One caution: this is a thin sample. 319 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 DL 1157
For a booking, read DL 1157 as 92.0% on time with 1.57% cancelled over 319 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- OMA to ATL, every carrier and departure
- ATL to OMA, the return direction
- Delta Air Lines 1136 on the same route89.9%
- Delta Air Lines 1125 on the same route86.6%
- Delta Air Lines 2632 on the same route87.8%
- Delta Air Lines 2364 on the same route84.3%
- Eppley Airfield (OMA) delay statistics
- Hartsfield-Jackson Atlanta International (ATL) delay statistics
- Delta Air Lines on-time record
- Every Delta Air Lines flight number with a record
- The most and least reliable flight numbers in the US
- Worst months to fly in the US, ranked by the data
A flight number here means Delta Air Lines’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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.