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

As of February 2026, there are 10 flights per day flying from St. Louis to Detroit. The most common time of day flights depart is 10:00AM, with 77% of flights taking off at noon.

What is the cheapest airline that flies from Lambert-St Louis to Detroit?

Southwest is the most popular carrier operating from Lambert-St Louis to Detroit

What airlines fly to Detroit?

Delta, Spirit Airlines and Southwest are the top three most popular airlines that fly to Detroit from St. Louis according to our data. Delta is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Detroit. Keep in mind that there are 4 different airlines that fly to Detroit on a routine basis, so you have a few additional options to choose from.

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

74 flights are operational weekly from St. Louis to Detroit as of February 2026. The most popular departure day for this route is Tue, with 16% of flights per week taking off on this day.

When did momondo last update prices for flights from Lambert-St Louis Airport to Detroit?

Prices for flights from Lambert-St Louis Airport to Detroit were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Detroit?

As of February 2026, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Detroit.

How old do you have to be to fly from Lambert-St Louis Airport to Detroit?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Detroit.

What documentation or ID do you need to fly to Detroit?

The necessary travel and health documents for your Detroit trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$64 Cheap Flights from St. Louis to Detroit in 2026

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Find the cheapest flights from St. Louis to Detroit

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:54 pm - 11:55 pm

STL

DTW

9h 01m

1 stop

8:30 am - 3:53 pm

DTW

STL

8h 23m

1 stop

$160Frontier

Mon, Mar 2 - Wed, Mar 4

11:27 am - 8:07 am

STL

DTW

19h 40m

1 stop

7:50 pm - 10:32 am

DTW

STL

39h 42m

2 stops

$169Frontier

Tue, Mar 24 - Sun, Mar 29

11:32 am - 8:07 am

STL

DTW

19h 35m

1 stop

5:04 pm - 1:34 pm

DTW

STL

21h 30m

1 stop

$180Frontier

Wed, Mar 18 - Sun, Mar 22

8:17 pm - 8:07 am

STL

DTW

10h 50m

1 stop

5:17 pm - 1:19 pm

DTW

STL

21h 02m

1 stop

$181Frontier

Wed, Mar 4 - Sun, Mar 8

8:12 pm - 10:59 am

STL

DTW

13h 47m

1 stop

5:07 pm - 10:32 am

DTW

STL

18h 25m

1 stop

$195Frontier

Mon, Mar 16 - Mon, Mar 23

3:49 pm - 8:07 am

STL

DTW

39h 18m

2 stops

5:07 pm - 10:37 am

DTW

STL

18h 30m

1 stop

$197Frontier

Tue, Mar 3 - Tue, Mar 10

2:09 pm - 8:07 am

STL

DTW

16h 58m

1 stop

9:02 am - 11:19 pm

DTW

STL

15h 17m

2 stops

$199Frontier

Mon, Mar 9 - Wed, Mar 11

3:49 pm - 8:57 am

STL

DTW

16h 08m

1 stop

5:07 pm - 10:37 am

DTW

STL

18h 30m

1 stop

$202Frontier

Tue, Mar 3 - Tue, Mar 10

4:51 pm - 8:07 am

STL

DTW

14h 16m

2 stops

6:05 am - 10:32 am

DTW

STL

5h 27m

1 stop

$203Multiple Airlines

Tue, Mar 17 - Tue, Mar 24

1:54 pm - 11:55 pm

STL

DTW

9h 01m

1 stop

10:27 pm - 9:49 am

DTW

STL

12h 22m

1 stop

$205Frontier

Mon, Mar 2 - Fri, Mar 6

Southwest flights from St. Louis to Detroit

Our best Southwest deals on St. Louis to Detroit flight tickets

Southwest

Apr 14

STL10:30 amLambert-St Louis

1h 30m

DTW1:00 pmDetroit Metropolitan Wayne County

Apr 15

DTW7:10 pmDetroit Metropolitan Wayne County

1h 45m

STL7:55 pmLambert-St Louis

$206

Southwest

Apr 1

STL5:40 amLambert-St Louis

3h 25m

1 stop

DTW10:05 amDetroit Metropolitan Wayne County

Apr 1

DTW7:15 pmDetroit Metropolitan Wayne County

1h 40m

STL7:55 pmLambert-St Louis

$207

Southwest

Apr 14

STL1:45 pmLambert-St Louis

7h 45m

2 stops

DTW10:30 pmDetroit Metropolitan Wayne County

Apr 15

DTW7:00 amDetroit Metropolitan Wayne County

1h 45m

STL7:45 amLambert-St Louis

$212

Frontier flights from St. Louis to Detroit

Our best Frontier deals on St. Louis to Detroit flight tickets

Frontier

Mar 2

STL1:54 pmLambert-St Louis

9h 01m

1 stop

DTW11:55 pmDetroit Metropolitan Wayne County

Mar 4

DTW8:30 amDetroit Metropolitan Wayne County

8h 23m

1 stop

STL3:53 pmLambert-St Louis

$160

Frontier

Mar 24

STL11:27 amLambert-St Louis

19h 40m

1 stop

DTW8:07 amDetroit Metropolitan Wayne County

Mar 29

DTW7:50 pmDetroit Metropolitan Wayne County

39h 42m

2 stops

STL10:32 amLambert-St Louis

$169

Frontier

Mar 18

STL11:32 amLambert-St Louis

19h 35m

1 stop

DTW8:07 amDetroit Metropolitan Wayne County

Mar 22

DTW5:04 pmDetroit Metropolitan Wayne County

21h 30m

1 stop

STL1:34 pmLambert-St Louis

$180

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 3/2

1:54 pm-11:55 pm

1 stop9h 01m

Detroit Metropolitan Wayne County

Wed 3/4

8:30 am-3:53 pm

1 stop8h 23m

$160

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 3/24

11:27 am-8:07 am

1 stop19h 40m

Detroit Metropolitan Wayne County

Sun 3/29

7:50 pm-10:32 am

2 stops39h 42m

$169

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 3/18

11:32 am-8:07 am

1 stop19h 35m

Detroit Metropolitan Wayne County

Sun 3/22

5:04 pm-1:34 pm

1 stop21h 30m

$180

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 3/4

8:17 pm-8:07 am

1 stop10h 50m

Detroit Metropolitan Wayne County

Sun 3/8

5:17 pm-1:19 pm

1 stop21h 02m

$181

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 3/16

8:12 pm-10:59 am

1 stop13h 47m

Detroit Metropolitan Wayne County

Mon 3/23

5:07 pm-10:32 am

1 stop18h 25m

$195

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 3/3

3:49 pm-8:07 am

2 stops39h 18m

Detroit Metropolitan Wayne County

Tue 3/10

5:07 pm-10:37 am

1 stop18h 30m

$197

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 3/9

2:09 pm-8:07 am

1 stop16h 58m

Detroit Metropolitan Wayne County

Wed 3/11

9:02 am-11:19 pm

2 stops15h 17m

$199

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 3/3

3:49 pm-8:57 am

1 stop16h 08m

Detroit Metropolitan Wayne County

Tue 3/10

5:07 pm-10:37 am

1 stop18h 30m

$202

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 3/17

4:51 pm-8:07 am

2 stops14h 16m

Detroit Metropolitan Wayne County

Tue 3/24

6:05 am-10:32 am

1 stop5h 27m

$203

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 3/2

1:54 pm-11:55 pm

1 stop9h 01m

Detroit Metropolitan Wayne County

Fri 3/6

10:27 pm-9:49 am

1 stop12h 22m

$205

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Detroit

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between St. Louis and Detroit?

What is the cheapest month to fly to Detroit?

The cheapest month to fly to Detroit from St. Louis is in August. Flight prices, which tend to average around $104, are often lower during this time because this is during the off-season. If you’re not able to fly to Detroit in August, then July is your next best option. Flight prices from St. Louis to Detroit during July average around $114.

What is the cheapest day to depart on your flight to Detroit?

On average, the least expensive day to fly to Detroit from St. Louis is on a Friday. momondo users have found tickets for Friday departures for as low as $323. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Detroit for around $730.

What is the cheapest time of day to depart on your flight to Detroit?

In the evening is the cheapest time of day to fly from St. Louis to Detroit when you can find flight prices for as low as $267. Flying to Detroit in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $813 on average. Flights to Detroit from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Lambert-St Louis to Detroit flight route?

Fly from Lambert-St Louis to Detroit Metropolitan Wayne County for the best Lambert-St Louis - Detroit flight prices

How far in advance should I book a flight to Detroit?

You are more likely to see cheaper flights to Detroit from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit for around $289 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit from St. Louis for as low as $117 on momondo.

What cabin class options are available on Lambert-St Louis to Detroit flights?

There are 4 cabin classes available to choose from on Lambert-St Louis to Detroit flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Detroit flights?

You could potentially save up to 30% on your flight if you consider stops on a St. Louis to Detroit flight.

How have St. Louis to Detroit flight prices changed over time?

As of February 2026, prices for St. Louis to Detroit flights are approximately 43% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Detroit

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Detroit according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Detroit (STL to DTT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Detroit

Best Price Found	$271
Fastest flight time	1h 30m
Direct flights	Every day
Airports in Detroit	1 airport

The best one-way flight to Detroit from St. Louis in the past 72 hours is $271. The best round-trip flight deal from St. Louis to Detroit found on momondo in the last 72 hours is $404.

The fastest flight from St. Louis to Detroit takes 1h 30m

Direct flights go from St. Louis to Detroit every day.

There is 1 airport in Detroit. From St. Louis there are direct flights to Detroit Metropolitan Wayne County (DTW).

Search flight deals

How far is Lambert-St Louis to Detroit by plane?
A flight from Lambert-St Louis to Detroit will travel around 454.1 mi. Typically, this will take 1h 30m by plane in normal conditions.
When did momondo last update prices for flights from Lambert-St Louis Airport to Detroit?
Prices for flights from Lambert-St Louis Airport to Detroit were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Detroit?
As of February 2026, there are 4 operators available to choose from for flights from Lambert-St Louis Airport to Detroit.
How old do you have to be to fly from Lambert-St Louis Airport to Detroit?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Detroit.
What documentation or ID do you need to fly to Detroit?
The necessary travel and health documents for your Detroit trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Detroit?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from St. Louis to Detroit is Canadair (Bombardier) Regional Jet 900 (17.38% of total bookings). The next most popular plane models are Boeing 717-200 (13.33%), Airbus A320-100/200 (8.81%), and Boeing 737 MAX 8 (8.10%).
What is the most popular airline from St. Louis to Detroit?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Detroit is Delta (49% of total bookings). The next most popular airlines are Spirit Airlines (24%), Southwest (22%), and JetBlue (5%).

Best airlines flying from St. Louis to Detroit

Compare and see reviews for airlines that fly from St. Louis to Detroit with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $38	Free Cancellation	Rating 6.3 8,473 reviews	Search Spirit Airlines flights
Delta	PriceFrom $75	Free Cancellation	Rating 7.9 8,212 reviews	Search Delta flights
Frontier	PriceFrom $80	Free Cancellation	Rating 5.7 3,048 reviews	Search Frontier flights
Southwest	PriceFrom $119	Free Cancellation	Rating 8.0 4,295 reviews	Search Southwest flights

Southwest Flights From St. Louis to Detroit
Southwest is one of the most popular airlines flying from St. Louis to Detroit, operating 4 flights/week on average for this route. A good Southwest flight deal for St. Louis to Detroit starts from $119 round-trip, up to an average price of $277. Our users have rated Southwest at 8.0/10.
Delta Flights From St. Louis to Detroit
Delta is also a popular choice for this route. Delta flight deals for St. Louis to Detroit start from as low as $75 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $293. Delta operates 19 flights to Detroit from St. Louis in an average week. Users have rated it 7.9/10 across 8,212 reviews.

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Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Detroit?

It is quick and easy to find St. Louis to Detroit flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Detroit that suits you.

Can I find flights from St. Louis to Detroit with flexible booking policies on momondo?

Yes. All flights to Detroit from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Detroit?

momondo provides multiple filters to help you find the best flight to Detroit from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Detroit right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Detroit flights. All you need is a valid email address and we will do the rest; it is that quick and easy.