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Route Reliability

Miami → Baltimore

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

72
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
10 min
Average arrival delay
2.2%
Cancelled
2,301
Flights in the data

Data through May 2026.

Who flies it best

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

  1. 1.Southwest Airlines77%1,182 flights
  2. 2.Frontier Airlines75%268 flights
  3. 3.American Airlines72%802 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.

MIA–BWI flights departing between 6–9 AM arrived on time 96% of the time, versus 52% between 6–9 PM.

Sunday scaries are real for this one.

MIA–BWI flights arrived on time 83% of the time on Tuesdays and just 65% on Sundays. That gap is worth planning around.

Southwest Airlines has a slight edge here.

Southwest Airlines arrived on time 77% of the time on this route; American Airlines managed 72%.

Slipping a little lately.

MIA–BWI flights arrived on time 72% of the time over the last three months in the data, compared with 77% 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
  • Mon71%(316 flights)
  • Tue83%(281 flights)
  • Wed80%(276 flights)
  • Thu75%(321 flights)
  • Fri75%(326 flights)
  • Sat75%(380 flights)
  • Sun65%(342 flights)
On-time by departure window
  • 3–6 AM84%(43 flights)
  • 6–9 AM96%(504 flights)
  • 9 AM–12 PM81%(144 flights)
  • 12–3 PM76%(384 flights)
  • 3–6 PM69%(601 flights)
  • 6–9 PM52%(198 flights)
  • 9 PM–12 AM63%(368 flights)
On-time trend by month
77%
May

Jun 73% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%187
July 202562%179
August 202566%194
September 202583%154
October 202582%176
November 202583%178
December 202573%216
January 202684%198
February 202674%178
March 202666%172
April 202672%206
May 202677%204

Same trip, other airports

Keep nerding

Based on 2,301 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.