Cheap flights from St Louis to Detroit

One-way fares from $174 · STL → DTT · prices found by travellers in the last 48 hours

Compare all dates Detroit → St Louis
Cheapest fare
$174

Frontier Airlines · Fri, Nov 13

Cheapest month
November

from $174

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 54m

730 km

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Cheapest month to fly from St Louis to Detroit

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $174

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart12:14 Fri, Nov 13STL → DTW 4h 47m · 1 stop
$174one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Detroit

Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

Things to do in DetroitTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in DetroitPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in DetroitCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from St Louis to Detroit

St Louis (STL) and Detroit (DTT) are about 730 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 54m. Over the next few months, one-way fares start from $174, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from St Louis to Detroit?

The cheapest one-way fare we've seen recently is $174 with Frontier Airlines, departing Friday, November 13, 2026.

What is the cheapest month to fly from St Louis to Detroit?

November 2026 currently has the lowest fares, from $174 one way.

Are there direct flights from St Louis to Detroit?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from St Louis to Detroit?

The quickest journey we've seen takes about 3h 54m. St Louis and Detroit are around 730 km apart.

Which airlines fly from St Louis to Detroit?

Recent fares on this route were with Frontier Airlines.

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