Boston (BOS) to Detroit (DTW)
Flight time
≈ 2h 04m
Bearing
273° W
Boston (BOS) to Detroit (DTW) is 631 miles (1,015 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
Look up a route, or build a trip
Change the airports, or add stops for a multi-leg trip.
What actually flies BOS–DTW
Filed traffic dataIn May 2026, Delta Air Lines operated the most departures, one of 2 carriers flying nonstop BOS–DTW; the Airbus A321 was the most common aircraft at 35% of departures; flights ran 87% full.
Departures
431
May 2026
Seats
72,827
both directions
Passengers
63,170
both directions
Load factor
86.7%
RPM ÷ ASM
Who flies BOS–DTW?
Delta Air Lines operated the most nonstop BOS–DTW departures in May 2026 (299), one of 2 carriers on the route.
- DL
299 departures · 54,303 seats
Share of departures69.4%87.8%
Load
- B6
132 departures · 18,524 seats
Share of departures30.6%83.6%
Load
What plane flies BOS–DTW?
In May 2026, the Airbus A321 flew 35% of BOS–DTW departures — more than any other aircraft type.
- Airbus A321
150 departures · 91.8% load
34.8% - Airbus A220-300
130 departures · 83.9% load
30.2% - Boeing 737-900ER
73 departures · 81.5% load
16.9% - Airbus A320
48 departures · 86.2% load
11.1% - Airbus A321neo
26 departures · 84.1% load
6.0% - Boeing 757-200
3 departures · 77.3% load
0.7% - Boeing 737-800
1 departures · 73.8% load
0.2%
How has BOS–DTW traffic changed?
Nonstop BOS–DTW departures fell from 492 in June 2025 to 431 in May 2026.
Monthly nonstop BOS–DTW traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
492 departures · 70,144 passengers
82.7%
Load
July 2025
484 departures · 73,101 passengers
87.2%
Load
August 2025
498 departures · 76,625 passengers
89.4%
Load
September 2025
491 departures · 69,564 passengers
82.1%
Load
October 2025
555 departures · 79,334 passengers
83.8%
Load
November 2025
454 departures · 60,533 passengers
76.6%
Load
December 2025
396 departures · 53,907 passengers
77.3%
Load
January 2026
311 departures · 39,345 passengers
75.7%
Load
February 2026
290 departures · 36,042 passengers
76.1%
Load
March 2026
360 departures · 49,178 passengers
81.0%
Load
April 2026
402 departures · 56,528 passengers
81.5%
Load
May 2026
431 departures · 63,170 passengers
86.7%
Load
By direction
Each direction is filed separately — they rarely match.
DTW → BOS
87.9% full
217 departures · 32,151 passengers
BOS → DTW
85.6% full
214 departures · 31,019 passengers
Nonstop BOS–DTW traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Boston (BOS) from Detroit (DTW)?
BOS to DTW is 631 miles (1,015 km / 548 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BOS to DTW?
A nonstop covers the 631-mile great-circle distance in roughly 2h 04m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BOS–DTW?
In May 2026, the Airbus A321 flew the largest share of departures (34.8%), followed by the Airbus A220-300 (30.2%).
What mileage do I earn flying BOS–DTW?
Distance-based programs credit off the 631-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
Keep exploring
Every route below is its own page.
Popular long-haul routes