STL - DTW

$72 Find Cheap Flights from St. Louis to Detroit - Compare and Save

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Everything you should know

Cheapest round-trip
$137
Typical prices: $281-$449
Frontier
Sun 10/21Sun 10/28
STL - DTW • 1 stop
Cheapest non-stop
$277
Typical prices: $285-$474
Southwest
Mon 11/12Fri 11/16
STL - DTW • Non-stop
Nonstop flights
You can fly direct with Delta and Southwest. Average duration is 1h 34m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 18 weeks in advance save around 52% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 30% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $234 (round-trip)
Shortest trip • 5h 09m (one-way)
Insights
Insights
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We hope you love your trip to Detroit Metropolitan Wayne County Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from St. Louis to Detroit (STL-DTW)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Detroit

Wed, Oct 21 - Wed, Oct 28
Frontier Logo
6:35 pm - 11:56 amSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
16h 21m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:25 am - 5:40 pmDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
12h 15m1 stop Atlanta Hartsfield-Jackson
$137Frontier
Wed, Oct 28 - Mon, Nov 2
Frontier Logo
6:44 pm - 12:44 amSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
5h 00m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:25 am - 5:40 pmDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
12h 15m1 stop Atlanta Hartsfield-Jackson
$143Frontier
Fri, Oct 30 - Tue, Nov 3
Frontier Logo
6:44 pm - 12:44 amSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
5h 00m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
3:02 pm - 5:40 pmDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
27h 38m1 stop Atlanta Hartsfield-Jackson
$165Frontier
Sat, Oct 17 - Mon, Oct 19
American Airlines Logo
7:29 am - 1:00 pmSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
4h 31m1 stop Chicago O'Hare Intl
American Airlines Logo
8:54 pm - 12:19 amDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
4h 25m1 stop Chicago O'Hare Intl
$257American Airlines
Sat, Oct 17 - Mon, Oct 19
American Airlines Logo
7:29 am - 1:00 pmSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
4h 31m1 stop Chicago O'Hare Intl
American Airlines Logo
8:54 pm - 12:19 amDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
4h 25m1 stop Chicago O'Hare Intl
$257American Airlines
Mon, Oct 19 - Mon, Oct 26
Delta Logo
6:05 pm - 8:39 pmSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
1h 34mnonstop
Delta Logo
8:10 pm - 8:51 pmDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
1h 41mnonstop
$277Delta
Thu, Oct 15 - Tue, Oct 20
Delta Logo
6:47 am - 9:20 amSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
1h 33mnonstop
Delta Logo
9:10 am - 9:49 amDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
1h 39mnonstop
$277Delta
Thu, Nov 12 - Mon, Nov 16
Southwest Logo
10:20 am - 12:50 pmSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
1h 30mnonstop
Southwest Logo
6:20 pm - 7:10 pmDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
1h 50mnonstop
$277Southwest
Sat, Oct 17 - Mon, Oct 19
Southwest Logo
4:55 pm - 7:25 pmSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
1h 30mnonstop
Southwest Logo
8:25 pm - 9:00 pmDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
1h 35mnonstop
$277Southwest
Tue, Oct 20 - Fri, Oct 23
American Airlines Logo
7:29 am - 1:00 pmSTL  Lambert-St Louis-DTW Detroit Metropolitan Wayne County
4h 31m1 stop Chicago O'Hare Intl
American Airlines Logo
8:54 pm - 12:19 amDTW  Detroit Metropolitan Wayne County-STL Lambert-St Louis
4h 25m1 stop Chicago O'Hare Intl
$294American Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Detroit Metropolitan Wayne County Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Detroit Metropolitan Wayne County Airport?

Round-trip flights from St. Louis to Detroit Metropolitan Wayne County Airport typically range from $281 to $449. The lowest price found in the past 5 days was $137, on Frontier.

What's the cheapest day of the week to fly from St. Louis to Detroit Metropolitan Wayne County Airport?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from St. Louis to Detroit Metropolitan Wayne County Airport. It’s 7% cheaper than the average day, while Sunday is the most expensive, with prices 18% higher.

What’s the cheapest month to fly from St. Louis to Detroit Metropolitan Wayne County Airport?

•August is the cheapest month to fly from St. Louis to Detroit Metropolitan Wayne County Airport at $245 round-trip.
•February ($420) and March ($419) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 71% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from St. Louis to Detroit Metropolitan Wayne County Airport the cheapest?

Flights from St. Louis to Detroit Metropolitan Wayne County Airport are cheapest 18 weeks before departure. Booking in this window typically costs about 52% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from St. Louis to Detroit

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on KLM and Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Ramsey Qubein

Ramsey Qubein

Expert on DTW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Key details for St. Louis to Detroit Metropolitan Wayne County Airport flights

Low season

January

Cheapest flight

$72
Beat the crowds with an average 20% drop in travelers.
The most popular month to fly with an average 19% increase in travelers.
One-way flight from St. Louis to Detroit Metropolitan Wayne County Airport

When to book flights from St. Louis to Detroit

Are your dates flexible? Find out the best times to travel from St. Louis to Detroit based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Detroit Metropolitan Wayne County Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from St. Louis to Detroit Metropolitan Wayne County Airport?

    These are the earliest and latest flight times available from St. Louis to Detroit Metropolitan Wayne County Airport:

    • Earliest: departs at 6:15 am and lands at 7:49 am
    • Latest: departs at 8:50 pm and lands at 10:24 pm.

    The flight takes about 1h 34m.

  • What cabin classes can I book on flights from St. Louis to Detroit Metropolitan Wayne County Airport?

    Two cabin classes are available on flights from St. Louis to Detroit Metropolitan Wayne County Airport:

    • Economy Class
    • First Class

  • How long is a flight from St. Louis to Detroit Metropolitan Wayne County Airport?

    A nonstop flight from St. Louis to Detroit Metropolitan Wayne County Airport takes 1h 34m, covering 439 miles.

  • Do I need a passport to fly from St. Louis to Detroit Metropolitan Wayne County Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a St. Louis to Detroit Metropolitan Wayne County Airport flight?

    Round-trip flights from St. Louis to Detroit Metropolitan Wayne County Airport range from $281 to $449, with an average of $350 over the past 12 months. Anything below $281 counts as a good deal.

  • How expensive are last-minute St. Louis to Detroit Metropolitan Wayne County Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 77% above the $350 route average. Book 18 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from St. Louis to Detroit Metropolitan Wayne County Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $234 round-trip via Chicago Midway (MDW), compared to $356 for nonstop.

  • What is the standard checked-bag allowance on flights from St. Louis to Detroit Metropolitan Wayne County Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from St. Louis to Detroit Metropolitan Wayne County Airport?

    The Boeing 717-200 family is used most often on this route, operated mainly by Delta. Other aircraft seen on the route include Boeing 737-800 Passenger/BBJ2 (winglets) variants.

  • How are flight departures from St. Louis to Detroit Metropolitan Wayne County Airport spread across the day?

    Morning is the busiest departure period on St. Louis to Detroit Metropolitan Wayne County Airport flights, with 51% of flights leaving in that window. Evening departures account for 33%, afternoon flights for 16%, and night flights for 0%.

  • Have flight prices from St. Louis to Detroit Metropolitan Wayne County Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $137 to $785. That means the highest observed fare was about 6x higher than the lowest one.

  • Which airlines offer Wi-Fi on St. Louis to Detroit Metropolitan Wayne County Airport flights?

    Delta is the only airline on the St. Louis to Detroit Metropolitan Wayne County Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from St. Louis to Detroit Metropolitan Wayne County Airport looking right now?

    One-way fares from St. Louis to Detroit Metropolitan Wayne County Airport are currently lower than usual. Average one-way flight prices are about $116, which is 53% below the typical average for this route.

  • What car rental options are available at Detroit Metropolitan Wayne County Airport (DTW)?

    Detroit Metropolitan Wayne County Airport (DTW) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:

    • Hertz
    • Dollar
    • Budget
    • Thrifty
    • Alamo

  • Which airports can I use when flying from St. Louis to Detroit Metropolitan Wayne County Airport?

    Flights from St. Louis to Detroit Metropolitan Wayne County Airport usually depart from Lambert-St Louis (STL) and arrive at Detroit Metropolitan Wayne County (DTW).

  • Which airports do connecting flights from St. Louis to Detroit Metropolitan Wayne County Airport pass through?

    One-stop flights from St. Louis to Detroit Metropolitan Wayne County Airport most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 38% of one-stop connections
    • Orlando (MCO) - 23% of one-stop connections
    • Charlotte Douglas (CLT) - 15% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 8% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Detroit Metropolitan Wayne County Airport?

    Yes. Flexible dates can save you up to 21% on flights from St. Louis to Detroit Metropolitan Wayne County Airport. Friday is the cheapest departure day at $328 round-trip on average, while Sunday is the most expensive at $414, a difference of $86.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from St. Louis to Detroit Metropolitan Wayne County Airport?

    2 airlines operate flights between St. Louis and Detroit Metropolitan Wayne County Airport. The airlines offering nonstop flights on this route include:

    • Delta
    • Southwest

  • How much time can I save by choosing a different layover airport from St. Louis to Detroit Metropolitan Wayne County Airport?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 3h 29m, compared with 5h 09m via Chicago O'Hare Intl (ORD) and 5h 21m via Charlotte Douglas (CLT).

  • What is the time difference between St. Louis and Detroit Metropolitan Wayne County Airport?

    Detroit Metropolitan Wayne County Airport is 1 hour ahead of St. Louis (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Detroit Metropolitan Wayne County Airport?

    Some of the most popular sights in Detroit Metropolitan Wayne County Airport are Greektown Casino, Ford Field and Comerica Park. These are among the most viewed places in Detroit Metropolitan Wayne County Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on St. Louis to Detroit Metropolitan Wayne County Airport flights?

    Among airlines operating St. Louis to Detroit Metropolitan Wayne County Airport flights:

    • Delta: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on St. Louis to Detroit Metropolitan Wayne County Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Delta: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking St. Louis to Detroit Metropolitan Wayne County Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average $328, about $86 less than Sunday fares (21% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 52% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your St. Louis to Detroit Metropolitan Wayne County Airport trip for August. Fares historically average $245 round-trip in that month - typically $175 less than the most expensive month, which is February (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Chicago Midway Airport (MDW) can be cheaper than flying direct. The cheapest layover option averages $234 round-trip on this route - about $122 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Detroit Metropolitan Wayne County Airport.

    • The Westin Detroit Metropolitan Airport

Prefer to fly direct from St. Louis to Detroit?

 
Find which airlines fly direct from Lambert-St Louis Airport to Detroit Metropolitan Wayne County Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Detroit Metropolitan Wayne County

Monday

Delta,Southwest

Delta,Southwest

Tuesday

Delta,Southwest

Delta,Southwest

Wednesday

Delta,Southwest

Delta,Southwest

Thursday

Delta,Southwest

Delta,Southwest

Friday

Delta,Southwest

Delta,Southwest

Saturday

Delta,Southwest

Delta,Southwest

Sunday

Delta,Southwest

Delta,Southwest

See more direct flights

Direct returns

Detroit Metropolitan Wayne County to Lambert-St Louis

Monday

Delta,Southwest

Delta,Southwest

Tuesday

Delta,Southwest

Delta,Southwest

Wednesday

Delta,Southwest

Delta,Southwest

Thursday

Delta,Southwest

Delta,Southwest

Friday

Delta,Southwest

Delta,Southwest

Saturday

Delta,Southwest

Delta,Southwest

Sunday

Delta,Southwest

Delta,Southwest

See more direct flights

More options for your flight from St. Louis to Detroit

Complete your trip to Detroit with a hotel stay or car rental