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Flight Reliability

F9 2999 · Frontier Airlines

Chicago → Dallas–Fort Worth (MDW–DFW)

49
Bring Snacks
WanderNerd Reliability Score
65%
Arrive within 15 minutes
39 min
Average arrival delay
1.2%
Cancelled
1 min early
Median arrival delay

Based on 81 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

F9 2999 arrived on time 75% of the time on Tuesdays and just 30% on Sundays. That gap is worth planning around.

Lagging the MDW–DFW route.

F9 2999 arrived on time 65% of the time, versus 72% across the MDW–DFW route.

Lagging the Frontier Airlines network.

F9 2999 arrived on time 65% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon71%(17 flights)
  • Tue75%(12 flights)
  • Wed64%(11 flights)
  • Thu—(6 flights)
  • Fri75%(16 flights)
  • Sat—(7 flights)
  • Sun30%(10 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM—(3 flights)
  • 12–3 PM—(2 flights)
  • 3–6 PM64%(22 flights)
  • 6–9 PM65%(37 flights)
  • 9 PM–12 AM64%(14 flights)
On-time trend by month
56%
Nov

Jul 73% → Nov 56% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202573%11
August 202570%10
September 202570%10
October 202570%20
November 202556%18
Departures on time
64%
Diverted
1.2%
Flights flown
79
Months covered
8

Same route, other flights

Keep nerding

Based on 81 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.