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 50% 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 day?

As of March 2026, there are 14 flights per day flying from St. Louis to Detroit. The most common time of day flights depart is 5:00PM, with 50% of flights taking off in the afternoon.

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

102 flights are operational weekly from St. Louis to Detroit as of March 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

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

Southwest and United Airlines are the most popular carriers operating from Lambert-St Louis to Detroit

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 March 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.

$63 Cheap Flights from St. Louis to Detroit in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $276 to $422. The lowest price recently found on this route was $140.

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Find the cheapest flights from St. Louis to Detroit

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:16 pm - 10:58 am

STL

DTW

13h 42m

1 stop

11:48 am - 11:25 pm

DTW

STL

12h 37m

1 stop

$140Frontier

Fri, Apr 10 - Mon, Apr 13

5:27 pm - 12:39 am

STL

DTW

6h 12m

1 stop

7:55 am - 7:23 pm

DTW

STL

12h 28m

1 stop

$142Frontier

Wed, May 6 - Sat, May 9

8:23 pm - 9:05 am

STL

DTW

11h 42m

1 stop

12:33 pm - 6:50 am

DTW

STL

19h 17m

1 stop

$157Frontier

Wed, Apr 15 - Tue, Apr 21

8:16 pm - 10:58 am

STL

DTW

13h 42m

1 stop

9:02 pm - 11:25 pm

DTW

STL

27h 23m

1 stop

$160Frontier

Fri, Apr 10 - Sun, Apr 12

11:25 am - 6:46 pm

STL

DTW

6h 21m

1 stop

5:09 pm - 6:50 am

DTW

STL

14h 41m

1 stop

$167Frontier

Thu, Apr 23 - Sun, Apr 26

11:25 am - 6:46 pm

STL

DTW

6h 21m

1 stop

7:04 pm - 6:50 am

DTW

STL

12h 46m

1 stop

$169Frontier

Thu, Apr 16 - Tue, Apr 21

8:16 pm - 10:58 am

STL

DTW

13h 42m

1 stop

9:02 pm - 11:25 pm

DTW

STL

27h 23m

1 stop

$180Frontier

Fri, Apr 10 - Sun, Apr 12

8:23 pm - 9:05 am

STL

DTW

11h 42m

1 stop

8:43 pm - 6:50 am

DTW

STL

11h 07m

1 stop

$181Frontier

Wed, Apr 15 - Thu, Apr 23

1:06 pm - 12:59 am

STL

DTW

10h 53m

1 stop

11:48 am - 11:25 pm

DTW

STL

12h 37m

1 stop

$182Frontier

Sat, Apr 11 - Mon, Apr 13

4:59 pm - 11:45 am

STL

DTW

17h 46m

2 stops

7:04 pm - 6:50 am

DTW

STL

12h 46m

1 stop

$185Frontier

Fri, Apr 17 - Tue, Apr 21

Delta flights from St. Louis to Detroit

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

Delta

Apr 15

STL10:50 amLambert-St Louis

1h 29m

DTW1:19 pmDetroit Metropolitan Wayne County

Apr 22

DTW8:02 pmDetroit Metropolitan Wayne County

1h 42m

STL8:44 pmLambert-St Louis

$197

Delta

Apr 15

STL10:50 amLambert-St Louis

1h 29m

DTW1:19 pmDetroit Metropolitan Wayne County

Apr 18

DTW4:00 pmDetroit Metropolitan Wayne County

1h 42m

STL4:42 pmLambert-St Louis

$205

Delta

Apr 9

STL6:32 amLambert-St Louis

1h 35m

DTW9:07 amDetroit Metropolitan Wayne County

Apr 13

DTW8:02 pmDetroit Metropolitan Wayne County

1h 42m

STL8:44 pmLambert-St Louis

$213

Southwest flights from St. Louis to Detroit

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

Southwest

Apr 14

STL1:45 pmLambert-St Louis

5h 30m

1 stop

DTW8:15 pmDetroit Metropolitan Wayne County

Apr 21

DTW7:10 pmDetroit Metropolitan Wayne County

1h 45m

STL7:55 pmLambert-St Louis

$207

Southwest

Apr 14

STL6:45 pmLambert-St Louis

1h 30m

DTW9:15 pmDetroit Metropolitan Wayne County

Apr 21

DTW4:10 pmDetroit Metropolitan Wayne County

7h 00m

2 stops

STL10:10 pmLambert-St Louis

$212

Southwest

Apr 11

STL5:40 amLambert-St Louis

3h 20m

1 stop

DTW10:00 amDetroit Metropolitan Wayne County

Apr 14

DTW7:00 amDetroit Metropolitan Wayne County

1h 45m

STL7:45 amLambert-St Louis

$215

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 4/10

8:16 pm-10:58 am

1 stop13h 42m

Detroit Metropolitan Wayne County

Mon 4/13

11:48 am-11:25 pm

1 stop12h 37m

$140

Quickest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 5/6

5:27 pm-12:39 am

1 stop6h 12m

Detroit Metropolitan Wayne County

Sat 5/9

7:55 am-7:23 pm

1 stop12h 28m

$142

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 4/15

8:23 pm-9:05 am

1 stop11h 42m

Detroit Metropolitan Wayne County

Tue 4/21

12:33 pm-6:50 am

1 stop19h 17m

$157

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 4/10

8:16 pm-10:58 am

1 stop13h 42m

Detroit Metropolitan Wayne County

Sun 4/12

9:02 pm-11:25 pm

1 stop27h 23m

$160

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 4/23

11:25 am-6:46 pm

1 stop6h 21m

Detroit Metropolitan Wayne County

Sun 4/26

5:09 pm-6:50 am

1 stop14h 41m

$167

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 4/16

11:25 am-6:46 pm

1 stop6h 21m

Detroit Metropolitan Wayne County

Tue 4/21

7:04 pm-6:50 am

1 stop12h 46m

$169

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 4/10

8:16 pm-10:58 am

1 stop13h 42m

Detroit Metropolitan Wayne County

Sun 4/12

9:02 pm-11:25 pm

1 stop27h 23m

$180

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 4/15

8:23 pm-9:05 am

1 stop11h 42m

Detroit Metropolitan Wayne County

Thu 4/23

8:43 pm-6:50 am

1 stop11h 07m

$181

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sat 4/11

1:06 pm-12:59 am

1 stop10h 53m

Detroit Metropolitan Wayne County

Mon 4/13

11:48 am-11:25 pm

1 stop12h 37m

$182

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 4/17

4:59 pm-11:45 am

2 stops17h 46m

Detroit Metropolitan Wayne County

Tue 4/21

7:04 pm-6:50 am

1 stop12h 46m

$185

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 $322. 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 $716.

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 $760 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 $291 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 19% 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 March 2026, prices for St. Louis to Detroit flights are approximately 7% cheaper 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	$187
Fastest flight time	1h 29m
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 $187. The best round-trip flight deal from St. Louis to Detroit found on momondo in the last 72 hours is $390.

The fastest flight from St. Louis to Detroit takes 1h 29m

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 29m 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 March 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 (19.53% of total bookings). The next most popular plane models are Boeing 717-200 (17.38%), Boeing 737 MAX 8 (11.37%), and Airbus A320-100/200 (8.15%).
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 (45% of total bookings). The next most popular airlines are Southwest (27%), Spirit Airlines (23%), 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 8,532 reviews	Search Spirit Airlines flights
Delta	PriceFrom $75	Free Cancellation	Rating 7.9 8,317 reviews	Search Delta flights
Frontier	PriceFrom $80	Free Cancellation	Rating 5.7 3,019 reviews	Search Frontier flights
Southwest	PriceFrom $119	Free Cancellation	Rating 8.0 4,324 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 8 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 $275. 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 $296. Delta operates 23 flights to Detroit from St. Louis in an average week. Users have rated it 7.9/10 across 8,317 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.