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Find cheap one-way flights from Detroit to St. Louis starting at US$103.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Detroit to St. Louis?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Detroit to St. Louis

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Spirit Airlines
From US$103
Frontier Airlines
From US$105
Southwest Airlines
From US$108
Delta Air Lines
From US$122
United Airlines
From US$130
American Airlines
From US$147
Sun Country Airlines
From US$171
Alaska Airlines
From US$234
ANA airlines

Find more flights and airlines

Find cheap flights from Detroit to St. Louis by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Detroit to St. Louis.

  • Cheapest
    Spirit Airlines
    DTW
    05:00
    6h 35m
    1 transfer
    STL
    10:35
    Detroit Metropolitan Wayne County Airport - St. Louis Lambert International Airport
    Wed, May 15Spirit Airlines
    US$103
  • Spirit Airlines
    DTW
    05:00
    6h 35m
    1 transfer
    STL
    10:35
    Detroit Metropolitan Wayne County Airport - St. Louis Lambert International Airport
    Wed, May 15Spirit Airlines
    US$103
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Detroit (DTT) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Detroit to St. Louis based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Detroit (DTT) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around $343.
  • How long does it take to fly from Detroit (DTT) to St. Louis (STL) and what is the distance?

    It takes around 1 hour 42 minutes to fly from Detroit (DTT) to St. Louis (STL).
  • What is the transportation method from the main airport to downtown in St. Louis?

    • The distance from St. Louis Lambert International Airport to downtown is about 20km. It takes about 40 minutes by taxi.
  • What are the most popular airlines that fly from Detroit (DTT) to St. Louis (STL)?

    Airlines with flights from Detroit (DTT) to St. Louis (STL): Southwest Airlines, Aeromexico, WestJet, Delta Air Lines, KLM and Air France.

Detroit to St. Louis Flight Information

Cheapest nonstop flight price

$102

Cheapest round-trip ticket price

$200

Off-season for travel

November

Peak season for travel

September