Skip to content
WanderNerd
Check a flight

Flight Reliability

F9 1538 · Frontier Airlines

Tampa → Baltimore (TPA–BWI)

68
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
17 min
Average arrival delay
1.7%
Cancelled
6 min early
Median arrival delay

Based on 174 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 1538 departing between 12–3 PM arrived on time 91% of the time, versus 63% between 3–6 PM.

Sunday scaries are real for this one.

F9 1538 arrived on time 81% of the time on Mondays and just 63% on Sundays. That gap is worth planning around.

Lagging the TPA–BWI route.

F9 1538 arrived on time 73% of the time, versus 80% across the TPA–BWI route.

Recent months have been rougher.

F9 1538 arrived on time 71% of the time over the last three months in the data, compared with 90% in the three months before that.

The breakdown

On-time by weekday
  • Mon81%(36 flights)
  • Tue—(6 flights)
  • Wed—(5 flights)
  • Thu71%(35 flights)
  • Fri80%(40 flights)
  • Sat80%(10 flights)
  • Sun63%(38 flights)
On-time by departure window
  • 3–6 AM90%(10 flights)
  • 9 AM–12 PM71%(28 flights)
  • 12–3 PM91%(35 flights)
  • 3–6 PM63%(40 flights)
  • 6–9 PM68%(38 flights)
  • 9 PM–12 AM63%(19 flights)
On-time trend by month
54%
Apr

Jun 25% → Apr 54% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202525%12
July 202565%17
August 202572%18
September 202577%13
October 202594%17
November 202594%18
December 202580%15
January 202685%13
March 202675%12
April 202654%24
Departures on time
78%
Diverted
0.6%
Flights flown
170
Months covered
12

Same route, other flights

Keep nerding

Based on 174 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.