OnTimeRoutes
B

Frontier Airlines MDW to BWI on-time performance

Frontier Airlines nonstop flights from Chicago to Baltimore · Aug 2025 – Jul 2026

On-time arrivals
83%
arrived < 15 min late
Cancelled
1.4%
1 flights
Avg arrival delay
14 min
81 min when late
Rank on route
#1 of 2
route average 79% on time

Key facts

  • Frontier Airlines flights on MDW to BWI arrived on time 83% of the time in Aug 2025 – Jul 2026.
  • 1.4% were cancelled, and 11% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (39%).

On-time trend by month

50%75%100%July 2025: 61.5% on time, 0.0% cancelledJul ’25August 2025: 80.0% on time, 0.0% cancelledAug ’25September 2025: 82.4% on time, 0.0% cancelledSep ’25October 2025: 90.5% on time, 0.0% cancelledOct ’25November 2025: 75.0% on time, 5.9% cancelledNov ’25December 2025: 100.0% on time, 0.0% cancelledDec ’25
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft39%
  • Air traffic control & airport congestion35%
  • Airline (crew, maintenance, cleaning, fueling)26%
  • Extreme weather0%
  • Security0%

Other airlines on MDW to BWI

71 Frontier Airlines flights tracked on this route; 1 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.