OnTimeRoutes
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Frontier Airlines CLE to BOS on-time performance

Frontier Airlines nonstop flights from Cleveland to Boston · Aug 2025 – Jul 2026

On-time arrivals
90%
arrived < 15 min late
Cancelled
2.5%
2 flights
Avg arrival delay
5 min
47 min when late
Rank on route
#1 of 3
route average 79% on time

Key facts

  • Frontier Airlines flights on CLE to BOS arrived on time 90% of the time in Aug 2025 – Jul 2026.
  • 2.5% were cancelled, and 4% arrived an hour or more late.
  • That ranks #1 of 3 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (60%).

On-time trend by month

40%70%100%July 2025: 100.0% on time, 0.0% cancelledJul ’25August 2025: 100.0% on time, 8.3% cancelledAug ’25September 2025: 100.0% on time, 0.0% cancelledSep ’25October 2025: 94.4% on time, 0.0% cancelledOct ’25November 2025: 87.5% on time, 0.0% cancelledNov ’25December 2025: 57.1% on time, 12.5% cancelledDec ’25January 2026: 75.0% on time, 0.0% cancelledJan ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion60%
  • Airline (crew, maintenance, cleaning, fueling)40%
  • Late-arriving aircraft0%
  • Extreme weather0%
  • Security0%

Other airlines on CLE to BOS

79 Frontier Airlines flights tracked on this route; 2 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.