Detroit (DTW) to St Louis (STL)
Flight time
≈ 1h 41m
Bearing
239° SW
Detroit (DTW) to St Louis (STL) is 439 miles (707 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 DTW–STL
Filed traffic dataIn June 2026, Delta Air Lines operated the most departures, one of 3 carriers flying nonstop DTW–STL; the Boeing 717-200 was the most common aircraft at 64% of departures; flights ran 83% full.
Departures
338
June 2026
Seats
42,578
both directions
Passengers
35,246
both directions
Load factor
82.8%
RPM ÷ ASM
Who flies DTW–STL?
Delta Air Lines operated the most nonstop DTW–STL departures in June 2026 (217), one of 3 carriers on the route.
- DL
217 departures · 23,914 seats
Share of departures64.2%84.2%
Load
- WN
120 departures · 18,492 seats
Share of departures35.5%81.0%
Load
- AA
1 departures · 172 seats
Share of departures0.3%77.9%
Load
What plane flies DTW–STL?
In June 2026, the Boeing 717-200 flew 64% of DTW–STL departures — more than any other aircraft type.
- Boeing 717-200
215 departures · 84.3% load
63.6% - Boeing 737-700
66 departures · 82.8% load
19.5% - Boeing 737 MAX 8
35 departures · 79.4% load
10.4% - Boeing 737-800
20 departures · 79.0% load
5.9% - Airbus A319
2 departures · 77.6% load
0.6%
How has DTW–STL traffic changed?
Nonstop DTW–STL departures fell from 380 in July 2025 to 338 in June 2026.
Monthly nonstop DTW–STL traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
380 departures · 38,402 passengers
79.6%
Load
August 2025
359 departures · 35,986 passengers
77.9%
Load
September 2025
311 departures · 29,374 passengers
76.1%
Load
October 2025
344 departures · 32,767 passengers
76.5%
Load
November 2025
303 departures · 27,437 passengers
71.2%
Load
December 2025
307 departures · 27,088 passengers
71.6%
Load
January 2026
249 departures · 18,182 passengers
61.2%
Load
February 2026
225 departures · 18,354 passengers
72.5%
Load
March 2026
319 departures · 26,126 passengers
75.2%
Load
April 2026
337 departures · 28,832 passengers
71.8%
Load
May 2026
354 departures · 34,391 passengers
76.7%
Load
June 2026
338 departures · 35,246 passengers
82.8%
Load
By direction
Each direction is filed separately — they rarely match.
DTW → STL
84.3% full
170 departures · 17,990 passengers
STL → DTW
81.3% full
168 departures · 17,256 passengers
Nonstop DTW–STL traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Detroit (DTW) from St Louis (STL)?
DTW to STL is 439 miles (707 km / 382 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from DTW to STL?
A nonstop covers the 439-mile great-circle distance in roughly 1h 41m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies DTW–STL?
In June 2026, the Boeing 717-200 flew the largest share of departures (63.6%), followed by the Boeing 737-700 (19.5%).
What mileage do I earn flying DTW–STL?
Distance-based programs credit off the 439-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