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Cheap flights from St. Louis to Detroit from $52

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Detroit departing on 2/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:43 pm - 2:15 pmSTL-DTW
21h 32m1 stop
Multiple Airlines Logo
5:51 pm - 10:34 pmDTW-STL
29h 43m1 stop
$151Multiple Airlines
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Fri, Jan 9 - Tue, Jan 13
Frontier Logo
5:11 pm - 10:52 amSTL-DTW
16h 41m1 stop
Frontier Logo
8:00 am - 2:48 pmDTW-STL
31h 48m2 stops
$171Frontier
Find Deal
Fri, Jan 9 - Tue, Jan 13
Frontier Logo
7:43 pm - 11:25 amSTL-DTW
14h 42m1 stop
Frontier Logo
5:20 pm - 10:14 amDTW-STL
17h 54m1 stop
$174Frontier
Find Deal
Wed, Dec 3 - Fri, Dec 5
Multiple Airlines Logo
12:04 pm - 8:26 amSTL-DTW
19h 22m1 stop
Multiple Airlines Logo
2:50 pm - 9:52 amDTW-STL
20h 02m1 stop
$179Multiple Airlines
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Thu, Dec 11 - Sun, Dec 14
Multiple Airlines Logo
12:04 pm - 8:20 amSTL-DTW
19h 16m2 stops
Multiple Airlines Logo
2:50 pm - 9:52 amDTW-STL
20h 02m1 stop
$180Multiple Airlines
Find Deal
Thu, Dec 11 - Sun, Dec 14
Multiple Airlines Logo
10:42 am - 7:52 pmSTL-DTW
8h 10m1 stop
Multiple Airlines Logo
6:12 pm - 8:59 amDTW-STL
15h 47m1 stop
$185Multiple Airlines
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Fri, Dec 5 - Sun, Dec 7
Multiple Airlines Logo
12:04 pm - 7:52 pmSTL-DTW
6h 48m1 stop
Multiple Airlines Logo
6:12 pm - 8:59 amDTW-STL
15h 47m1 stop
$186Multiple Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
7:43 pm - 1:55 pmSTL-DTW
17h 12m2 stops
Multiple Airlines Logo
5:20 pm - 10:14 amDTW-STL
17h 54m1 stop
$193Multiple Airlines
Find Deal
Wed, Dec 3 - Fri, Dec 5
Multiple Airlines Logo
10:47 am - 8:07 amSTL-DTW
20h 20m1 stop
Multiple Airlines Logo
11:58 am - 9:47 amDTW-STL
22h 49m1 stop
$195Multiple Airlines
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Mon, Dec 8 - Thu, Dec 11
Frontier Logo
3:30 pm - 8:26 amSTL-DTW
15h 56m2 stops
Frontier Logo
6:12 pm - 8:59 amDTW-STL
15h 47m1 stop
$198Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7

Frontier flights from St. Louis to Detroit Metropolitan Wayne County Airport

Our best Frontier deals on St. Louis to Detroit Metropolitan Wayne County Airport flight tickets
Frontier
Jan 9
STL5:11 pmLambert-St Louis
16h 41m
1 stop
DTW10:52 amDetroit Metropolitan Wayne County
Jan 13
DTW8:00 amDetroit Metropolitan Wayne County
31h 48m
2 stops
STL2:48 pmLambert-St Louis
$171
Find similar
Frontier
Dec 3
STL7:43 pmLambert-St Louis
14h 42m
1 stop
DTW11:25 amDetroit Metropolitan Wayne County
Dec 5
DTW5:20 pmDetroit Metropolitan Wayne County
17h 54m
1 stop
STL10:14 amLambert-St Louis
$174
Find similar
Frontier
Dec 4
STL3:30 pmLambert-St Louis
15h 56m
2 stops
DTW8:26 amDetroit Metropolitan Wayne County
Dec 7
DTW6:12 pmDetroit Metropolitan Wayne County
15h 47m
1 stop
STL8:59 amLambert-St Louis
$198
Find similar

American Airlines flights from St. Louis to Detroit Metropolitan Wayne County Airport

Our best American Airlines deals on St. Louis to Detroit Metropolitan Wayne County Airport flight tickets
American Airlines
Jan 1
STL9:08 amLambert-St Louis
7h 57m
1 stop
DTW6:05 pmDetroit Metropolitan Wayne County
Feb 28
DTW11:29 amDetroit Metropolitan Wayne County
6h 36m
1 stop
STL5:05 pmLambert-St Louis
$261
Find similar
American Airlines
Nov 23
STL8:39 amLambert-St Louis
9h 48m
1 stop
DTW7:27 pmDetroit Metropolitan Wayne County
Nov 24
DTW5:33 amDetroit Metropolitan Wayne County
9h 10m
1 stop
STL1:43 pmLambert-St Louis
$325
Find similar
American Airlines
Dec 19
STL6:35 pmLambert-St Louis
5h 09m
1 stop
DTW12:44 amDetroit Metropolitan Wayne County
Dec 20
DTW3:32 pmDetroit Metropolitan Wayne County
4h 58m
1 stop
STL7:30 pmLambert-St Louis
$339
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Detroit Metropolitan Wayne County Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 17, 2025.
Use the filters below to find and compare flights from St. Louis to Detroit Metropolitan Wayne County Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 1/9

3:43 pm-2:15 pm

1 stop21h 32m

Detroit Metropolitan Wayne County

Tue 1/13

5:51 pm-10:34 pm

1 stop29h 43m

$151

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 1/9

5:11 pm-10:52 am

1 stop16h 41m

Detroit Metropolitan Wayne County

Tue 1/13

8:00 am-2:48 pm

2 stops31h 48m

$171

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 12/3

7:43 pm-11:25 am

1 stop14h 42m

Detroit Metropolitan Wayne County

Fri 12/5

5:20 pm-10:14 am

1 stop17h 54m

$174

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 12/11

12:04 pm-8:26 am

1 stop19h 22m

Detroit Metropolitan Wayne County

Sun 12/14

2:50 pm-9:52 am

1 stop20h 02m

$179

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 12/11

12:04 pm-8:20 am

2 stops19h 16m

Detroit Metropolitan Wayne County

Sun 12/14

2:50 pm-9:52 am

1 stop20h 02m

$180

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 12/5

10:42 am-7:52 pm

1 stop8h 10m

Detroit Metropolitan Wayne County

Sun 12/7

6:12 pm-8:59 am

1 stop15h 47m

$185

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 12/4

12:04 pm-7:52 pm

1 stop6h 48m

Detroit Metropolitan Wayne County

Sun 12/7

6:12 pm-8:59 am

1 stop15h 47m

$186

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 12/3

7:43 pm-1:55 pm

2 stops17h 12m

Detroit Metropolitan Wayne County

Fri 12/5

5:20 pm-10:14 am

1 stop17h 54m

$193

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 12/8

10:47 am-8:07 am

1 stop20h 20m

Detroit Metropolitan Wayne County

Thu 12/11

11:58 am-9:47 am

1 stop22h 49m

$195

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 12/4

3:30 pm-8:26 am

2 stops15h 56m

Detroit Metropolitan Wayne County

Sun 12/7

6:12 pm-8:59 am

1 stop15h 47m

$198

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Detroit from

How to get the cheapest flight ticket from St. Louis to Detroit Metropolitan Wayne County Airport

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

What is the cheapest month to fly to Detroit Metropolitan Wayne County Airport?

The cheapest month to fly to Detroit Metropolitan Wayne County Airport from St. Louis is in August. Flight prices, which tend to average around $140, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Detroit Metropolitan Wayne County Airport from St. Louis during July instead. Flights to Detroit Metropolitan Wayne County Airport in July, while not as cheap as those in August, still average around $149.

What is the cheapest day to depart on your flight to Detroit Metropolitan Wayne County Airport?

The cheapest day to depart from St. Louis to Detroit Metropolitan Wayne County Airport is on a Friday when prices can be found for as low as $332. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Detroit Metropolitan Wayne County Airport on Wednesday is $747.

What is the cheapest time of day to depart on your flight to Detroit Metropolitan Wayne County Airport?

Flying to Detroit Metropolitan Wayne County Airport from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $218 when looking at flights departing in the evening. Flights to Detroit Metropolitan Wayne County Airport are more costly at noon, with an average ticket price of $888. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight to Detroit Metropolitan Wayne County Airport?

You are more likely to see cheaper flights to Detroit Metropolitan Wayne County Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Detroit Metropolitan Wayne County Airport for around $282 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Detroit Metropolitan Wayne County Airport from St. Louis for as low as $140 on momondo.

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

There are 4 cabin classes available to choose from on Lambert-St Louis to Detroit Metropolitan Wayne County 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 Metropolitan Wayne County Airport flights?

You could potentially save up to 8% on your flight if you consider stops on a St. Louis to Detroit Metropolitan Wayne County Airport flight.

How have St. Louis to Detroit Metropolitan Wayne County Airport flight prices changed over time?

As of November 2025, prices for St. Louis to Detroit Metropolitan Wayne County Airport flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Detroit Metropolitan Wayne County Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Detroit Metropolitan Wayne County Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Detroit Metropolitan Wayne County Airport (STL to DTW) flight deals and tips

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

Best Price Found

$233

Fastest flight time

1h 30m

Direct flights

Every day
The best one-way flight to Detroit Metropolitan Wayne County Airport from St. Louis in the past 72 hours is $233. The best round-trip flight deal from St. Louis to Detroit Metropolitan Wayne County Airport found on momondo in the last 72 hours is $360.
The fastest flight from St. Louis to Detroit Metropolitan Wayne County Airport takes 1h 30m
Direct flights go from St. Louis to Detroit Metropolitan Wayne County Airport every day.
Search flight deals

  • How far is Lambert-St Louis to Detroit Metropolitan Wayne County by plane?

    Lambert-St Louis and Detroit Metropolitan Wayne County are 436.9 mi apart from one another. Flights usually cover this in 1h 30m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    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 Metropolitan Wayne County Airport.

  • What documentation or ID do you need to fly to Detroit Metropolitan Wayne County Airport?

    The necessary travel and health documents for your Detroit Metropolitan Wayne County Airport 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 Metropolitan Wayne County Airport?

  • What is the most popular airline from St. Louis to Detroit Metropolitan Wayne County Airport?

Best airlines flying from St. Louis to Detroit Metropolitan Wayne County Airport

Compare and see reviews for airlines that fly from St. Louis to Detroit Metropolitan Wayne County Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $41Free CancellationRating
6.3
8,144 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $119Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
DeltaPriceFrom $121Free CancellationRating
7.9
8,006 reviews
Search Delta flights

  • Southwest Flights From St. Louis to Detroit Metropolitan Wayne County Airport

    Southwest flies from St. Louis to Detroit Metropolitan Wayne County Airport around 8 times per week, with 4,244 momondo users rating the airline 8.0/10. The cheapest Southwest deal from St. Louis to Detroit Metropolitan Wayne County Airport in the last 72 hours was $119 (round-trip), much lower than the average airfare cost of $289 for Southwest flights on this route.

  • Delta Flights From St. Louis to Detroit Metropolitan Wayne County Airport

    Delta (7.9/10 from 8,006 reviews) operates around 27 flights from St. Louis to Detroit Metropolitan Wayne County Airport in any given week. The average Delta airfare for this route is around $300, with deals from around $121 rare but found on momondo. Referenced prices are for round-trip St. Louis to Detroit Metropolitan Wayne County Airport flight searches in the last 72 hours.

Traveling to a place near Detroit?

Book flights to Detroit if you plan to visit one of these locations
Put-in-Bay
Auburn Hills
Warren
Southfield
Troy
Dearborn
Romulus
Monroe
Novi
Livonia
Port Clinton
Port Huron
Roseville
Sterling Heights
Brighton
Ypsilanti
Pontiac
Dundee
Madison Heights
Royal Oak

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?

All flight searches from St. Louis to Detroit on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential St. Louis to Detroit flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Detroit from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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