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Flight Reliability

F9 1665 · Frontier Airlines

Baltimore → Miami (BWI–MIA)

59
A Little Dicey
WanderNerd Reliability Score
68%
Arrive within 15 minutes
19 min
Average arrival delay
3.2%
Cancelled
5 min early
Median arrival delay

Based on 219 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 1665 departing between 12–3 PM arrived on time 90% of the time, versus 57% between 3–6 PM.

Wednesdays have been rough.

F9 1665 arrived on time 81% of the time on Thursdays and just 57% on Wednesdays. That gap is worth planning around.

A bit behind the BWI–MIA route.

F9 1665 arrived on time 68% of the time, versus 75% across the BWI–MIA route.

A bit behind the Frontier Airlines network.

F9 1665 arrived on time 68% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon78%(37 flights)
  • Tue60%(15 flights)
  • Wed57%(14 flights)
  • Thu81%(31 flights)
  • Fri66%(38 flights)
  • Sat68%(38 flights)
  • Sun59%(39 flights)
On-time by departure window
  • 6–9 AM83%(30 flights)
  • 9 AM–12 PM71%(17 flights)
  • 12–3 PM90%(41 flights)
  • 3–6 PM57%(62 flights)
  • 6–9 PM58%(62 flights)
On-time trend by month
91%
Mar

Jun 67% → Mar 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202548%29
August 202548%27
September 2025100%21
October 202594%18
November 202577%17
December 202559%17
January 202660%15
February 202690%10
March 202691%11
Departures on time
70%
Diverted
0%
Flights flown
212
Months covered
12

Same route, other flights

Keep nerding

Based on 219 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.