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.
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What actually flies BOS–DTW
US DOT T-100 · filed dataIn April 2026, Delta Air Lines operated the most departures, one of 4 carriers flying nonstop BOS–DTW; the Airbus A321neo was the most common aircraft at 24% of departures; flights ran 82% full.
Departures
402
April 2026
Seats
69,338
both directions
Passengers
56,528
both directions
Load factor
81.5%
passengers ÷ seats
Who flies BOS–DTW?
Delta Air Lines operated the most nonstop BOS–DTW departures in April 2026 (291), one of 4 carriers on the route.
- DL
Delta Air Lines
291 departures · 52,256 seats
Share of departures72.4%82.3%
Load
- B6
JetBlue Airways
81 departures · 11,732 seats
Share of departures20.1%79.2%
Load
- NK
Spirit Airlines
29 departures · 5,150 seats
Share of departures7.2%80.0%
Load
- UA
United Airlines
1 departures · 200 seats
Share of departures0.2%63.0%
Load
What plane flies BOS–DTW?
In April 2026, the Airbus A321neo flew 24% of BOS–DTW departures — more than any other aircraft type.
- Airbus A321neo
97 departures · 85.3% load
24.1% - Boeing 737-900ER
90 departures · 83.6% load
22.4% - Airbus A320
75 departures · 82.8% load
18.7% - Airbus A220-300
61 departures · 77.6% load
15.2% - Airbus A321
52 departures · 73.5% load
12.9% - Airbus A319
24 departures · 78.1% load
6.0% - Airbus A320neo
3 departures · 86.2% load
0.8%
How has BOS–DTW traffic changed?
Nonstop BOS–DTW departures fell from 501 in May 2025 to 402 in April 2026.
Monthly nonstop BOS–DTW traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
501 departures · 69,599 passengers
83.7%
Load
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
By direction
The DOT files each direction separately — they rarely match.
BOS → DTW
82.3% full
203 departures · 28,855 passengers
DTW → BOS
80.7% full
199 departures · 27,673 passengers
Nonstop BOS–DTW traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
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 April 2026, the Airbus A321neo flew the largest share of departures (24.1%), followed by the Boeing 737-900ER (22.4%).
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.
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