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Flight Reliability

F9 3174 · Frontier Airlines

Denver → Chicago (DEN–ORD)

72
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
22 min
Average arrival delay
0.6%
Cancelled
1 min early
Median arrival delay

Based on 164 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 3174 departing between 6–9 AM arrived on time 94% of the time, versus 62% between 3–6 PM.

Thursdays have been rough.

F9 3174 arrived on time 81% of the time on Wednesdays and just 65% on Thursdays. That gap is worth planning around.

Slipping a little lately.

F9 3174 arrived on time 71% of the time over the last three months in the data, compared with 77% in the three months before that.

The breakdown

On-time by weekday
  • Mon68%(25 flights)
  • Tue80%(15 flights)
  • Wed81%(16 flights)
  • Thu65%(26 flights)
  • Fri69%(32 flights)
  • Sat78%(23 flights)
  • Sun73%(26 flights)
On-time by departure window
  • 6–9 AM94%(48 flights)
  • 9 AM–12 PM—(7 flights)
  • 12–3 PM—(3 flights)
  • 3–6 PM62%(39 flights)
  • 6–9 PM64%(66 flights)
On-time trend by month
59%
May

Jun 54% → May 59% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202554%26
July 202568%22
August 202576%21
September 202588%25
October 202593%14
April 202660%10
May 202659%27
Departures on time
74%
Diverted
0%
Flights flown
163
Months covered
11

Same route, other flights

Keep nerding

Based on 164 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.