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Flight Reliability

F9 2509 · Frontier Airlines

Baltimore → Atlanta (BWI–ATL)

29
Bring Snacks
WanderNerd Reliability Score
51%
Arrive within 15 minutes
34 min
Average arrival delay
4.6%
Cancelled
13 min
Median arrival delay

Based on 237 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

F9 2509 departing between 6–9 PM arrived on time 62% of the time, versus 39% between 9 AM–12 PM.

Wednesdays have been rough.

F9 2509 arrived on time 65% of the time on Fridays and just 41% on Wednesdays. That gap is worth planning around.

Well behind the BWI–ATL route.

F9 2509 arrived on time 51% of the time, versus 80% across the BWI–ATL route.

Well behind the Frontier Airlines network.

F9 2509 arrived on time 51% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon41%(39 flights)
  • Tue58%(19 flights)
  • Wed41%(22 flights)
  • Thu60%(40 flights)
  • Fri65%(37 flights)
  • Sat52%(31 flights)
  • Sun42%(38 flights)
On-time by departure window
  • 9 AM–12 PM39%(23 flights)
  • 12–3 PM—(3 flights)
  • 3–6 PM47%(116 flights)
  • 6–9 PM62%(55 flights)
  • 9 PM–12 AM59%(29 flights)
On-time trend by month
57%
May

Jun 33% → May 57% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202533%24
July 202518%28
August 202558%26
September 202559%17
October 202585%26
November 202561%23
December 202541%22
February 202660%10
April 202669%13
May 202657%23
Departures on time
51%
Diverted
0%
Flights flown
226
Months covered
12

Same route, other flights

Keep nerding

Based on 237 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.