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Flight Reliability

AA 4088 · American Airlines

Bentonville → Chicago (XNA–ORD)

88
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
10 min
Average arrival delay
1.0%
Cancelled
13 min early
Median arrival delay

Based on 309 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 3–6 AM arrived on time 86% of the time, against 81% between 6–9 AM.

Skip Wednesday if you can.

AA 4088 arrived on time 91% of the time on Saturdays. On Wednesdays: 79%.

Better than the XNA–ORD route average.

AA 4088 arrived on time 84% of the time, versus 74% across the XNA–ORD route.

Better than the American Airlines network average.

AA 4088 arrived on time 84% of the time, versus 77% across the American Airlines network.

The breakdown

On-time by weekday
  • Mon79%(52 flights)
  • Tue86%(21 flights)
  • Wed79%(42 flights)
  • Thu86%(50 flights)
  • Fri86%(51 flights)
  • Sat91%(42 flights)
  • Sun81%(48 flights)
On-time by departure window
  • 3–6 AM86%(144 flights)
  • 6–9 AM81%(161 flights)
  • 9 AM–12 PM—(1 flights)
On-time trend by month
82%
May

Jun 89% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%28
July 202578%27
August 202583%23
September 202594%16
October 202596%28
November 202574%27
December 202579%29
January 202683%24
February 202683%24
March 202689%26
April 202678%27
May 202682%27
Departures on time
88%
Diverted
0%
Flights flown
306
Months covered
12

Same route, other flights

Keep nerding

Based on 309 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.