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Route Reliability

Baltimore → Miami

BWI–MIA · 946 miles · Baltimore/Washington International Thurgood Marshall Airport to Miami International Airport

72
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
11 min
Average arrival delay
2.3%
Cancelled
2,302
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.American Airlines80%803 flights
  2. 2.Southwest Airlines74%1,182 flights
  3. 3.Frontier Airlines71%268 flights

Not enough history to rank: Spirit Airlines (49 flights). We rank airlines only after 100 flights on the route.

What the data says

Morning flights do better here.

BWI–MIA flights departing between 3–6 AM arrived on time 95% of the time, versus 63% between 3–6 PM.

Sunday scaries are real for this one.

BWI–MIA flights arrived on time 81% of the time on Tuesdays and just 66% on Sundays. That gap is worth planning around.

American Airlines runs this route best.

American Airlines arrived on time 80% of the time on this route; Frontier Airlines managed 71%.

Ticking up lately.

BWI–MIA flights arrived on time 79% of the time over the last three months in the data, compared with 75% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon78%(313 flights)
  • Tue81%(281 flights)
  • Wed80%(275 flights)
  • Thu76%(322 flights)
  • Fri75%(324 flights)
  • Sat74%(382 flights)
  • Sun66%(345 flights)
On-time by departure window
  • 3–6 AM95%(21 flights)
  • 6–9 AM85%(773 flights)
  • 9 AM–12 PM81%(250 flights)
  • 12–3 PM77%(286 flights)
  • 3–6 PM63%(244 flights)
  • 6–9 PM64%(656 flights)
  • 9 PM–12 AM92%(12 flights)
On-time trend by month
78%
May

Jun 62% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%189
July 202559%180
August 202567%196
September 202592%153
October 202583%176
November 202579%177
December 202570%214
January 202677%200
February 202679%177
March 202678%173
April 202682%205
May 202678%202

Same trip, other airports

Keep nerding

Based on 2,302 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.