Affordable Flights from St. Louis (STL) to Detroit (DTW): Booking Guide
Cheapest flight found
$135
Last updated Mar 13, 2026
Prices by Month
Price History
Tracking the May 7, 2026 departure — the cheapest date we found.
Price Behavior: STL → DTW
Based on 6 months of fare data collected by Trip Manta.
Lowest Fare
$135
Highest Fare
$233
Median Fare
$200
Price Spread
$98
Prices vary significantly — hourly tracking is especially valuable here.
Cheapest month to fly: May 2026 (from $135)
Most expensive month: April 2026 (from $233)
Biggest price drop caught: $89 between consecutive checks
Most frequent cheapest airline: Southwest
What This Means for You
Flights from St. Louis to Detroit range from $135 to $233, a $98 spread across the months we track. If your dates are flexible, May 2026 tends to have the lowest fares. Because prices on this route change significantly, setting up hourly price alerts gives you the best chance of catching a short-lived drop before it corrects. We have caught drops as large as $89 between hourly checks on this route.
Track this route and save
Get email alerts when STL to DTW prices drop. We check every hour.
Start Tracking This FlightSearch this route
From
St. Louis (STL)
To
Detroit (DTW)
Airport Information
St. Louis (STL)
St. Louis Lambert International Airport (STL) serves as the primary commercial airport for the greater St. Louis metropolitan area. Known for its iconic Minoru Yamasaki-designed Terminal 1 vaulting ceilings, the airport provides a functional gateway to Missouri. It features a variety of local dining options, including the famous Schlafly Beer and Pasta House, ensuring travelers get a taste of authentic St. Louis flavors before boarding.
Detroit (DTW)
Detroit Metropolitan Wayne County Airport (DTW) is one of the nation’s leading international gateways and a massive hub for the Midwest. Located in Romulus, it features two primary terminals: the sleek, modern McNamara Terminal and the Evans Terminal. DTW is frequently ranked highly for customer satisfaction, offering a spectacular indoor light tunnel and a wide array of high-end retail shops and diverse dining for travelers.
Frequently Asked Questions
What is the average flight time from STL to DTW?
Non-stop flights typically take about 1 hour and 35 minutes to cover the distance between these two cities.
Which airlines offer non-stop service from St. Louis to Detroit?
Delta Air Lines and Southwest Airlines are the primary carriers that offer frequent non-stop service on this specific route.
How far is Detroit Metropolitan Airport from downtown Detroit?
The airport is approximately 20 miles southwest of downtown, which is usually a 25-to-30-minute drive depending on traffic conditions.
Is there public transportation from DTW airport?
Yes, the SMART bus system provides several routes connecting both terminals to the surrounding metro area, though most travelers prefer ride-shares or car rentals for speed.
What is the best time of day to fly to avoid delays?
Early morning flights are generally the most punctual, as they are less susceptible to the cascading delays that can build up throughout the air traffic system later in the day.
Learn More About Price Tracking
Flight Price Tracker
How Trip Manta monitors prices hourly vs Google Flights, Hopper, and Kayak.
Best Flight Price Trackers
Compare the top 7 trackers side by side — features, pricing, and check frequency.
Trip Manta vs Google Flights
How hourly tracking compares for catching short-lived price drops.
Our Methodology
How we track prices, trigger alerts, and what our data covers.
How Often Do Prices Drop?
Data study: drop frequency, average savings, and how long drops last.
Flight Price Alerts
Get email alerts when STL to DTW prices drop — free.