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Flight Reliability

DL 1157 · Delta Air Lines

Omaha → Atlanta (OMA–ATL)89% of its flights flew this route. The rest (PHX–BOS, AGS–ATL) are included in these numbers.

89
Pretty Reliable
WanderNerd Reliability Score
90%
Arrive within 15 minutes
5 min early
Average arrival delay
2.2%
Cancelled
15 min early
Median arrival delay

Based on 369 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

DL 1157 departing between 6–9 AM arrived on time 92% of the time, versus 65% between 3–6 PM.

Skip Saturday if you can.

DL 1157 arrived on time 96% of the time on Fridays. On Saturdays: 84%.

Better than the Delta Air Lines network average.

DL 1157 arrived on time 90% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 1157 arrived on time 93% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon85%(52 flights)
  • Tue96%(50 flights)
  • Wed92%(51 flights)
  • Thu89%(54 flights)
  • Fri96%(54 flights)
  • Sat84%(49 flights)
  • Sun88%(51 flights)
On-time by departure window
  • 6–9 AM92%(320 flights)
  • 3–6 PM65%(26 flights)
  • 9 PM–12 AM87%(15 flights)
On-time trend by month
90%
May

Jun 100% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%28
July 202584%31
August 202594%31
September 2025100%30
October 202597%31
November 202590%29
December 202586%29
January 202669%42
February 202691%22
March 202693%28
April 202697%30
May 202690%30
Departures on time
92%
Diverted
0%
Flights flown
361
Months covered
12

Same route, other flights

Keep nerding

Based on 369 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.