Miami (MIA) to Boston (BOS) flights
American Airlines, Delta Air Lines fly nonstop from Miami International Airport to Boston Logan International Airport, with about 58 flights a week in July 2026. The 1,258-mile flight takes about 3h 18m gate to gate.
- Distance
- 1,258 mi · 2,025 km
- Flight time
- 3h 18m
- Airlines
- 2
- Seats filled
- 85%
Airlines flying MIA to BOS
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| American Airlines | 45 | Boeing 737-800, Airbus A321, Boeing 737 MAX 8 | 346,074 | 3h 16m |
| Delta Air Lines | 13 | Boeing 737-800, Boeing 737-900ER, Airbus A321 | 114,403 | 3h 21m |
| Spirit AirlinesCeased operations 2026-05-02 | n/a | Airbus A321, Airbus A320-100/200, Airbus A320neo | 28,722 | 3h 25m |
| JetBlueSeasonal or ended | n/a | Airbus A220-300, Airbus A320-100/200 | 4,534 | 3h 14m |
| Republic AirlineSeasonal or ended | n/a | Embraer E175 | 1,513 | 3h 26m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
MIA to BOS flight schedule
13 flight numbers flew this route in August 2026, 9 of them almost daily. The first usually leaves at 6:40am and the last at 9:44pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AA 815American Airlines | 6:40am | 10:06am | 4 | 98% |
| AA 3127American Airlines | 6:50am | 10:19am | 23 | 100% |
| AA 2247American Airlines | 9:40am | 1:10pm | 24 | 88% |
| AA 1565American Airlines | 10:51am | 2:22pm | 4 | 80% |
| AA 1147American Airlines | 11:00am | 2:30pm | 27 | 85% |
| DL 1399Delta Air Lines | 11:50am | 3:22pm | 31 | 71% |
| AA 1184American Airlines | 12:35pm | 4:10pm | 27 | 74% |
| AA 1538American Airlines | 12:42pm | 4:17pm | 4 | 71% |
| AA 4660American Airlines · operated by Republic Airline | 2:28pm | 5:56pm | 4 | n/a |
| AA 1074American Airlines | 5:55pm | 9:30pm | 31 | 62% |
| DL 776Delta Air Lines | 7:58pm | 11:36pm | 31 | 64% |
| AA 2539American Airlines | 8:05pm | 11:26pm | 28 | 58% |
| AA 1054American Airlines | 9:44pm | 12:58am | 31 | 58% |
Is MIA to BOS on time?
From September 2025 to August 2026, 70% of 3,366 flights arrived within 15 minutes of schedule and 2.2% were cancelled. Flights leaving around 6am were the most punctual (93%), those around 9pm the least (58%). Most delay time was caused by late-arriving aircraft (41%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 2,297 | 71% | 21 min | 1.7% |
| Delta Air Lines | 890 | 70% | 24 min | 2.7% |
| Spirit Airlines | 175 | 54% | 33 min | 6.9% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 6am to 7am | 289 | 93% | |
| 7am to 8am | 108 | 80% | |
| 8am to 9am | 278 | 92% | |
| 9am to 10am | 91 | 84% | |
| 10am to 11am | 212 | 78% | |
| 11am to 12pm | 415 | 72% | |
| 12pm to 1pm | 254 | 64% | |
| 2pm to 3pm | 194 | 73% | |
| 5pm to 6pm | 290 | 61% | |
| 6pm to 7pm | 88 | 60% | |
| 7pm to 8pm | 499 | 59% | |
| 8pm to 9pm | 227 | 61% | |
| 9pm to 10pm | 362 | 58% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 286 | 45,125 | |
| September 2025 | 223 | 33,199 | |
| October 2025 | 248 | 36,443 | |
| November 2025 | 251 | 35,811 | |
| December 2025 | 270 | 36,785 | |
| January 2026 | 287 | 43,761 | |
| February 2026 | 290 | 42,304 | |
| March 2026 | 317 | 51,545 | |
| April 2026 | 331 | 47,011 | |
| May 2026 | 279 | 43,024 | |
| June 2026 | 264 | 39,405 | |
| July 2026 | 258 | 40,843 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.