St Louis to Detroit flights

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Airlines seen: Delta Air Lines, Southwest Airlines, American Airlines, Frontier Airlines
Reported fastest flight: 1h 25m
Non-stop: Yes

Lowest observed

€187

Cheapest month

October 2026

Last checked

7 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €136

26 Oct 2026

One way

Cheapest observed day

No observed fare for 26 Oct 2026 yet. Run a live search for this day or pick a nearby day below.

When to fly

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Find the dates that work for you

The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

Prices are for observed departure and return date pairs. No data does not mean no flights.

Short answer

We have seen Delta Air Lines fares from St Louis to Detroit, non-stop. The lowest fare our own searches returned is €187, seen on 7 Oct 2026. October 2026 is the cheapest month in our observations, at €187. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.

About this route

Explore the fares we observed from St Louis to Detroit. Prices move often, so pick your dates to see the latest options.

Route distance: 732 km
Reported fastest flight: 1h 25m
Airlines seen: Delta Air Lines, Southwest Airlines, American Airlines, Frontier Airlines
Alternative airports: SUS, DET, YIP

Route-level information; individual journeys vary.
Published schedules report non-stop service with Delta Air Lines, Southwest Airlines. Check current timetables.

A clearer picture of your fare

Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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The price is final on the provider's site, where your booking is completed.

How our prices work

Airport to city: straight-line distance

St. Louis Lambert International Airport (STL) → St Louis, city gazetteer reference point (38.6270, -90.1994): ≈ 20 km.
Detroit Metropolitan Wayne County Airport (DTW) → Detroit, city gazetteer reference point (42.3314, -83.0458): ≈ 29 km.

Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.