Flight number record
DL 1157
Delta Air Lines · Omaha to Atlanta
- Route
- OMA → ATL
- Departs
- 07:00
- Flights
- 327
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 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 13 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 327 flights, with a median arrival 15 minutes early.
Set against the rest of the country, DL 1157's record is 13 points better than the US average of 77.6%. That gap is worth roughly 134 fewer late arrivals for every thousand flights.
Key figures
On time
91.0%
Arrivals under 15 minutes late, of 322 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
1.53%
National rate is 1.81%
1 hour+ late
3.4%
National rate is 8.1%
These figures cover 327 flights between July 2025 and June 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.
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 143 of 327 flights, with 07:04 (58 flights) and 07:02 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 07:00143 flights43.7%
- Departs 07:0458 flights17.7%
- Departs 07:0236 flights11.0%
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 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 level with that at 91.0%. 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
DL 1157 next to OMA to ATL
Every carrier on OMA to ATL combined arrived on time 86.8% of the time across 1,784 flights, so DL 1157 is 4 points ahead of it. Delta flew 1,726 flights on the same city pair under all its flight numbers, including this one, and those ran 87.7% on time. Across its whole network Delta Air Lines managed 81.6%, which this flight beats by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| DL 1157thin sample | 327 | 91.0% | 77 min | 1.53% | A |
| All Delta Air Lines on OMA–ATL | 1,726 | 87.7% | 103 min | 1.51% | A |
| All carriers on OMA–ATL | 1,784 | 86.8% | 106 min | 1.46% | A |
| Delta Air Lines, whole network | 1,038,570 | 81.6% | 71 min | 1.62% | B |
Across the year
DL 1157 quarter by quarter
Quarter by quarter DL 1157 held fairly steady: 92.4% in Jul–Sep 2025, 91.0% in Oct–Dec 2025, 88.2% in Jan–Mar 2026 and 91.1% in Apr–Jun 2026. A spread of 4 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202592 flights92.4%
- Oct–Dec 202592 flights91.0%
- Jan–Mar 202652 flights88.2%
- Apr–Jun 202691 flights91.1%
Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, DL 1157 ranged from 85.1% on Sunday to 95.7% on Thursday. With about 47 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why DL 1157 runs late
One category carries most of the weight here. Carrier accounts for 59% of the 2,231 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.
- 59%Carrier
- 24%Extreme weather
- 17%National Airspace System
Extreme weather accounts for 24% 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 quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.9 times the usual weather exposure. The split is drawn from 2,231 delay minutes reported on DL 1157.
Cancellations sit at 1.53% against a national 1.81%, 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 3.4% land an hour or more behind schedule, against 8.1% 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
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. 327 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 91.0% on time with 1.53% cancelled over 327 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 route89.6%
- Delta Air Lines 1125 on the same route86.3%
- Delta Air Lines 2632 on the same route87.1%
- Delta Air Lines 2364 on the same route83.5%
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.