Cheap flights from Detroit to St. Louis

Round-trip
Economy
Detroit (DTT)
St. Louis (STL)
Depart
Return
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How to find the cheapest flight from
Detroit (DTT) to St. Louis (STL)

All the information you need to plan the best DTT to STL flight in 2021: compare Detroit to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
DTT - STL
Price
C$ 207 - C$ 301
STL
Temperature
0 - 27 °C
STL
Precipitation
56 - 119 mm

Popular in

June

High demand for flights, 17% potential price rise

Cheapest in

January

Best time to find cheap flights, 17% potential price drop

Average price

C$ 315

Average for round-trip flights in December 2021

Round-trip from

C$ 264

From Detroit (DTT) to Lambert-St Louis

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Detroit to St. Louis (DTT - STL)?

One of the essential ways to save on airfare from Detroit to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 8% on airfare.

How far in advance should I book a flight from Detroit to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 31 days in advance, which can save you up to 110% on flights from Detroit to St. Louis compared to booking the week you need them. Waiting 31 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 476. For sooner than that we have options available in the next 3 days from C$ 702.

What is the cheapest day to fly round-trip from Detroit to St. Louis?

Sunday flights are found to be more expensive to fly from Detroit to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Detroit</span> to <span class="emphasized">St. Louis</span> flights.

Flight FAQs

From Detroit to St. Louis

What days are direct flights available from Detroit to St. Louis?

Direct flights can be found on the following days: Thursday, Friday, Saturday.

How many flights depart from Detroit to St. Louis on average per day?

On average 5 flights depart from Detroit to St. Louis per day.
Morning (6am - Midday) - 60% of flight departures
Afternoon (Noon - 6pm) - 20% of flight departures
Evening (6pm - Midnight) - 20% of flight departures

What are the most reliable airlines from Detroit to St. Louis?

No one likes to see their flight delayed. When booking a flight from Detroit to St. Louis consider choosing Endeavor Airlines (96%), Southwest (93%) or KLM (88%) as they are the most reliable in getting you off to your destination on time.

COVID Restrictions

View COVID Travel Restrictions for St. Louis, MO

Do I need a COVID test to fly to St. Louis from Detroit?

Information is based on travel restrictions for travel to Lambert-St Louis within the United States

Most visitors from Detroit need to provide a negative COVID-19 test result and/or quarantine to enter Lambert-St Louis.

COVID-19 testing requirements
Visitors from Detroit must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Detroit are not required to quarantine after entering Lambert-St Louis.

Do I need a test to fly back to Detroit from St. Louis?

Returning to Detroit from Lambert-St Louis

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Detroit.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Detroit.

Hide COVID Travel Restrictions for St. Louis, MO

Destination information for St. Louis

Things to know before you go - useful duration and weather info for your trip from Detroit to St. Louis.
Average temperature for December in St. Louis
8.0 °C
Avg rainfall for December in St. Louis
64.0 mm

Airports servicing Detroit

Airports servicing St. Louis

Hourly flight availability from Detroit to St. Louis

See what time of day planes typically take off from Detroit towards St. Louis.
Evening 6 PM to midnight 50% of flight departures
Morning 6 AM to noon 32% of flight departures
Afternoon Noon to 6 PM 17% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Detroit to St. Louis
See how many times per day planes take to the skies headed from Detroit to St. Louis.
Sunday
3 daily flights
Monday
10 daily flights
Tuesday
5 daily flights
Wednesday
10 daily flights
Thursday
6 daily flights
Friday
5 daily flights
Saturday
6 daily flights
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