Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 1046 · United Airlines

Atlanta → Chicago (ATL–ORD)90% of its flights flew this route. The rest (ORD–MSP, SFO–ATL) are included in these numbers.

47
Bring Snacks
WanderNerd Reliability Score
60%
Arrive within 15 minutes
37 min
Average arrival delay
2.1%
Cancelled
9 min
Median arrival delay

Based on 379 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 1046 departing between 9 AM–12 PM arrived on time 90% of the time, versus 35% between 9 PM–12 AM.

Thursdays have been rough.

UA 1046 arrived on time 76% of the time on Tuesdays and just 50% on Thursdays. That gap is worth planning around.

Lagging the ATL–ORD route.

UA 1046 arrived on time 60% of the time, versus 71% across the ATL–ORD route.

Well behind the United Airlines network.

UA 1046 arrived on time 60% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon54%(54 flights)
  • Tue76%(53 flights)
  • Wed67%(51 flights)
  • Thu50%(52 flights)
  • Fri57%(53 flights)
  • Sat62%(53 flights)
  • Sun58%(55 flights)
On-time by departure window
  • 6–9 AM—(6 flights)
  • 9 AM–12 PM90%(10 flights)
  • 12–3 PM—(6 flights)
  • 6–9 PM61%(332 flights)
  • 9 PM–12 AM35%(17 flights)
On-time trend by month
74%
May

Jun 57% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%28
July 202530%30
August 202560%30
September 202580%30
October 202568%31
November 202554%26
December 202556%43
January 202658%36
February 202671%28
March 202648%29
April 202669%29
May 202674%31
Departures on time
74%
Diverted
0%
Flights flown
371
Months covered
12

Same route, other flights

Keep nerding

Based on 379 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.