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Cheap flights from St. Louis to Detroit from $92

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 7/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Detroit

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:34 pm - 4:40 pm
STL
-
DTW
21h 06m
1 stop
Frontier Logo
6:10 am - 5:37 pm
DTW
-
STL
12h 27m
1 stop
$187Frontier
Thu, Jul 9 - Thu, Jul 16
Frontier Logo
4:57 pm - 12:40 am
STL
-
DTW
6h 43m
1 stop
Frontier Logo
5:35 pm - 5:37 pm
DTW
-
STL
25h 02m
1 stop
$188Frontier
Wed, Jul 8 - Mon, Jul 13
Frontier Logo
6:34 pm - 12:40 am
STL
-
DTW
29h 06m
1 stop
Frontier Logo
2:56 pm - 8:57 am
DTW
-
STL
19h 01m
1 stop
$191Frontier
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
5:33 pm - 12:42 am
STL
-
DTW
6h 09m
1 stop
Frontier Logo
2:40 pm - 5:30 pm
DTW
-
STL
27h 50m
1 stop
$192Frontier
Wed, Aug 19 - Sat, Aug 22
Frontier Logo
4:57 pm - 12:40 am
STL
-
DTW
6h 43m
1 stop
Frontier Logo
2:56 pm - 8:57 am
DTW
-
STL
19h 01m
1 stop
$199Frontier
Wed, Jul 22 - Thu, Jul 23
Frontier Logo
6:33 pm - 12:42 am
STL
-
DTW
5h 09m
1 stop
Frontier Logo
6:45 am - 5:30 pm
DTW
-
STL
11h 45m
1 stop
$200Frontier
Thu, Aug 20 - Tue, Aug 25
Frontier Logo
4:57 pm - 1:33 pm
STL
-
DTW
19h 36m
1 stop
Frontier Logo
5:35 pm - 8:57 am
DTW
-
STL
16h 22m
1 stop
$202Frontier
Sat, Jul 18 - Fri, Jul 24
Frontier Logo
5:06 pm - 1:44 pm
STL
-
DTW
19h 38m
1 stop
Frontier Logo
6:10 am - 8:57 am
DTW
-
STL
27h 47m
1 stop
$203Frontier
Fri, Jul 3 - Fri, Jul 10
Frontier Logo
6:33 pm - 12:42 am
STL
-
DTW
5h 09m
1 stop
Frontier Logo
5:40 pm - 5:30 pm
DTW
-
STL
24h 50m
1 stop
$204Frontier
Thu, Aug 20 - Mon, Aug 24
Southwest Logo
7:40 pm - 10:15 pm
STL
-
DTW
1h 35mnonstop
Southwest Logo
6:30 pm - 7:05 pm
DTW
-
STL
1h 35mnonstop
$209Southwest
Wed, Jul 15 - Wed, Jul 22

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

Our best Southwest deals on St. Louis to Detroit Metropolitan Wayne County Airport flight tickets
Southwest
Jul 15
STL7:40 pmLambert-St Louis
1h 35m
DTW10:15 pmDetroit Metropolitan Wayne County
Jul 22
DTW6:30 pmDetroit Metropolitan Wayne County
1h 35m
STL7:05 pmLambert-St Louis
$209
Southwest
Jun 30
STL5:40 amLambert-St Louis
3h 20m
1 stop
DTW10:00 amDetroit Metropolitan Wayne County
Jun 30
DTW6:30 pmDetroit Metropolitan Wayne County
1h 35m
STL7:05 pmLambert-St Louis
$219
Southwest
Jul 15
STL7:40 pmLambert-St Louis
1h 35m
DTW10:15 pmDetroit Metropolitan Wayne County
Jul 22
DTW1:25 pmDetroit Metropolitan Wayne County
8h 05m
2 stops
STL8:30 pmLambert-St Louis
$224

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
Jul 9
STL6:34 pmLambert-St Louis
21h 06m
1 stop
DTW4:40 pmDetroit Metropolitan Wayne County
Jul 16
DTW6:10 amDetroit Metropolitan Wayne County
12h 27m
1 stop
STL5:37 pmLambert-St Louis
$187
Frontier
Jul 8
STL4:57 pmLambert-St Louis
6h 43m
1 stop
DTW12:40 amDetroit Metropolitan Wayne County
Jul 13
DTW5:35 pmDetroit Metropolitan Wayne County
25h 02m
1 stop
STL5:37 pmLambert-St Louis
$188
Frontier
Jul 7
STL6:34 pmLambert-St Louis
29h 06m
1 stop
DTW12:40 amDetroit Metropolitan Wayne County
Jul 14
DTW2:56 pmDetroit Metropolitan Wayne County
19h 01m
1 stop
STL8:57 amLambert-St Louis
$191

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 June 10, 2026.
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

Cheapest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 7/9

6:34 pm-4:40 pm

1 stop21h 06m

Detroit Metropolitan Wayne County

Thu 7/16

6:10 am-5:37 pm

1 stop12h 27m

$187

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 7/8

4:57 pm-12:40 am

1 stop6h 43m

Detroit Metropolitan Wayne County

Mon 7/13

5:35 pm-5:37 pm

1 stop25h 02m

$188

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 7/7

6:34 pm-12:40 am

1 stop29h 06m

Detroit Metropolitan Wayne County

Tue 7/14

2:56 pm-8:57 am

1 stop19h 01m

$191

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 8/19

5:33 pm-12:42 am

1 stop6h 09m

Detroit Metropolitan Wayne County

Sat 8/22

2:40 pm-5:30 pm

1 stop27h 50m

$192

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 7/22

4:57 pm-12:40 am

1 stop6h 43m

Detroit Metropolitan Wayne County

Thu 7/23

2:56 pm-8:57 am

1 stop19h 01m

$199

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 8/20

6:33 pm-12:42 am

1 stop5h 09m

Detroit Metropolitan Wayne County

Tue 8/25

6:45 am-5:30 pm

1 stop11h 45m

$200

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sat 7/18

4:57 pm-1:33 pm

1 stop19h 36m

Detroit Metropolitan Wayne County

Fri 7/24

5:35 pm-8:57 am

1 stop16h 22m

$202

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 7/3

5:06 pm-1:44 pm

1 stop19h 38m

Detroit Metropolitan Wayne County

Fri 7/10

6:10 am-8:57 am

1 stop27h 47m

$203

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Thu 8/20

6:33 pm-12:42 am

1 stop5h 09m

Detroit Metropolitan Wayne County

Mon 8/24

5:40 pm-5:30 pm

1 stop24h 50m

$204
Quickest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 7/15

7:40 pm-10:15 pm

Nonstop1h 35m

Detroit Metropolitan Wayne County

Wed 7/22

6:30 pm-7:05 pm

Nonstop1h 35m

$209

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between St. Louis and Detroit Metropolitan Wayne County Airport?

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 $119, 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 $206.

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 $477. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Detroit Metropolitan Wayne County Airport on Sunday is $702.

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 $276 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 $847. 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 from St. Louis 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 $316 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 $150 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between St. Louis to Detroit Metropolitan Wayne County Airport.

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

As of June 2026, prices for St. Louis to Detroit Metropolitan Wayne County Airport flights are approximately 19% 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

$193

Fastest flight time

1h 25m

Direct flights

Every day
The best one-way flight to Detroit Metropolitan Wayne County Airport from St. Louis in the past 72 hours is $193. The best round-trip flight deal from St. Louis to Detroit Metropolitan Wayne County Airport found on momondo in the last 72 hours is $350.
The fastest flight from St. Louis to Detroit Metropolitan Wayne County Airport takes 1h 25m
Direct flights go from St. Louis to Detroit Metropolitan Wayne County Airport every day.
Search flight deals

Frequently asked questions about flying from St. Louis to Detroit Metropolitan Wayne County Airport

  • 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 25m, 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
DeltaPriceFrom $75Free CancellationRating
7.9
8,395 reviews
Search Delta flights
FrontierPriceFrom $80Free CancellationRating
5.6
2,898 reviews
Search Frontier flights
SouthwestPriceFrom $119Free CancellationRating
7.9
4,237 reviews
Search Southwest flights

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

    Delta flies from St. Louis to Detroit Metropolitan Wayne County Airport around 22 times per week, with 8,395 momondo users rating the airline 7.9/10. The cheapest Delta deal from St. Louis to Detroit Metropolitan Wayne County Airport in the last 72 hours was $75 (round-trip), much lower than the average airfare cost of $331 for Delta flights on this route.

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

    Southwest (7.9/10 from 4,237 reviews) operates around 11 flights from St. Louis to Detroit Metropolitan Wayne County Airport in any given week. The average Southwest airfare for this route is around $306, with deals from around $119 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
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Southfield
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Dundee
Ypsilanti
Pontiac
Brighton
Belleville
Madison Heights

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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