BWI to MIA flight delays & on-time performance
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport to Miami International Airport · 946 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BWI or MIA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Baltimore (BWI) to Miami (MIA) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.2% were cancelled, and 8% arrived an hour or more late.
- American Airlines was the most punctual airline here (81% on time); Frontier Airlines was the least (69%).
- Departures scheduled around 6am did best (90% on time); around 8pm did worst (56%).
- Tuesday was the most reliable day to fly (82% on time) and Sunday the least (68%).
- The largest source of delay minutes was late-arriving aircraft (39%).
Which airline is most on time from BWI to MIA?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 82% | 0.0% | 12 min | 6.1% | 114 |
| American Airlines | 81% | 2.1% | 22 min | 7.8% | 699 |
| Southwest Airlines | 73% | 1.9% | 16 min | 7.4% | 1,183 |
| Frontier Airlines | 69% | 4.2% | 30 min | 14.2% | 265 |
| Spirit Airlines | 56% | 3.6% | 30 min | 11.1% | 28 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am90%402 flights
- 8am80%365 flights
- 10am88%77 flights
- 11am76%214 flights
- 12pm89%56 flights
- 1pm83%131 flights
- 2pm61%59 flights
- 3pm60%66 flights
- 4pm60%35 flights
- 5pm67%112 flights
- 6pm68%236 flights
- 7pm64%326 flights
- 8pm56%158 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday77%2.5% cancelled
- Tuesday82%2.1% cancelled
- Wednesday78%1.4% cancelled
- Thursday77%1.3% cancelled
- Friday72%1.5% cancelled
- Saturday75%2.3% cancelled
- Sunday68%4.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft39%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion23%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather58%
- Airline (crew, maintenance, cleaning, fueling)22%
- Air traffic control & airport congestion20%
- Security0%
BWI to MIA: common questions
- How often are BWI to MIA flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Baltimore to Miami cancelled?
- 2.2% of scheduled flights were cancelled (50 of 2,289).
- How long are typical delays?
- Across all flights the average arrival delay was 20 min (early arrivals count as zero). Flights that were late arrived 74 min behind schedule on average, and 8.3% of flights were an hour or more late.
- How long is taxi time at BWI?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MIA to BWI — 73% on time
More flights from Baltimore
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BWI → MIA, nonstop flights by US airlines that report to the DOT. How we calculate this.