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Cheap flights from St. Louis to Detroit from $64

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 4/22. 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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Find the cheapest flights from St. Louis to Detroit

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:32 am - 8:07 am
STL
-
DTW
19h 35m
1 stop
Multiple Airlines Logo
6:05 am - 10:32 am
DTW
-
STL
5h 27m
1 stop
$131Multiple Airlines
Wed, Mar 18 - Tue, Mar 24
Frontier Logo
8:23 pm - 11:31 am
STL
-
DTW
14h 08m
1 stop
Frontier Logo
10:05 am - 6:50 am
DTW
-
STL
21h 45m
1 stop
$149Frontier
Mon, May 4 - Sun, May 10
Frontier Logo
11:21 am - 8:02 am
STL
-
DTW
19h 41m
1 stop
Frontier Logo
12:33 pm - 6:50 am
DTW
-
STL
19h 17m
1 stop
$153Frontier
Tue, Apr 7 - Tue, Apr 14
Frontier Logo
4:59 pm - 9:14 am
STL
-
DTW
15h 15m
1 stop
Frontier Logo
10:27 pm - 7:32 pm
DTW
-
STL
22h 05m
1 stop
$160Frontier
Sat, Apr 18 - Sun, Apr 19
Frontier Logo
8:23 pm - 11:45 am
STL
-
DTW
14h 22m
1 stop
Frontier Logo
10:27 pm - 7:32 pm
DTW
-
STL
22h 05m
1 stop
$162Frontier
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
11:32 am - 12:39 am
STL
-
DTW
12h 07m
2 stops
Multiple Airlines Logo
6:05 am - 10:32 am
DTW
-
STL
5h 27m
1 stop
$167Multiple Airlines
Wed, Mar 18 - Tue, Mar 24
Frontier Logo
8:23 pm - 11:31 am
STL
-
DTW
14h 08m
1 stop
Frontier Logo
10:27 pm - 7:12 pm
DTW
-
STL
21h 45m
1 stop
$169Frontier
Mon, May 4 - Fri, May 8
Multiple Airlines Logo
8:13 pm - 5:18 pm
STL
-
DTW
20h 05m
1 stop
Multiple Airlines Logo
12:26 pm - 6:50 am
DTW
-
STL
19h 24m
1 stop
$178Multiple Airlines
Fri, May 15 - Tue, May 19
Frontier Logo
8:23 pm - 9:05 am
STL
-
DTW
11h 42m
1 stop
Frontier Logo
1:30 pm - 11:19 pm
DTW
-
STL
10h 49m
1 stop
$181Frontier
Wed, Apr 15 - Mon, Apr 20
Frontier Logo
8:23 pm - 9:05 am
STL
-
DTW
11h 42m
1 stop
Frontier Logo
10:27 pm - 6:50 am
DTW
-
STL
33h 23m
2 stops
$182Frontier
Wed, Apr 15 - Mon, Apr 20

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
Mar 25
STL6:50 pmLambert-St Louis
1h 30m
DTW9:20 pmDetroit Metropolitan Wayne County
Mar 30
DTW8:10 pmDetroit Metropolitan Wayne County
1h 45m
STL8:55 pmLambert-St Louis
$206
Southwest
Apr 7
STL5:35 amLambert-St Louis
3h 10m
1 stop
DTW9:45 amDetroit Metropolitan Wayne County
Apr 14
DTW7:00 amDetroit Metropolitan Wayne County
1h 45m
STL7:45 amLambert-St Louis
$207
Southwest
Mar 26
STL7:40 pmLambert-St Louis
1h 30m
DTW10:10 pmDetroit Metropolitan Wayne County
Mar 30
DTW8:10 pmDetroit Metropolitan Wayne County
1h 45m
STL8:55 pmLambert-St Louis
$215

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
Mar 24
STL2:37 pmLambert-St Louis
8h 54m
1 stop
DTW12:31 amDetroit Metropolitan Wayne County
Apr 1
DTW5:45 amDetroit Metropolitan Wayne County
8h 54m
1 stop
STL1:39 pmLambert-St Louis
$223
American Airlines
May 4
STL5:51 amLambert-St Louis
6h 06m
1 stop
DTW12:57 pmDetroit Metropolitan Wayne County
May 5
DTW6:00 amDetroit Metropolitan Wayne County
6h 47m
1 stop
STL11:47 amLambert-St Louis
$239

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 March 7, 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

Wed 3/18

11:32 am-8:07 am

1 stop19h 35m

Detroit Metropolitan Wayne County

Tue 3/24

6:05 am-10:32 am

1 stop5h 27m

$131

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 5/4

8:23 pm-11:31 am

1 stop14h 08m

Detroit Metropolitan Wayne County

Sun 5/10

10:05 am-6:50 am

1 stop21h 45m

$149

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Tue 4/7

11:21 am-8:02 am

1 stop19h 41m

Detroit Metropolitan Wayne County

Tue 4/14

12:33 pm-6:50 am

1 stop19h 17m

$153

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Sat 4/18

4:59 pm-9:14 am

1 stop15h 15m

Detroit Metropolitan Wayne County

Sun 4/19

10:27 pm-7:32 pm

1 stop22h 05m

$160

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 4/17

8:23 pm-11:45 am

1 stop14h 22m

Detroit Metropolitan Wayne County

Fri 4/24

10:27 pm-7:32 pm

1 stop22h 05m

$162
Quickest round-trip

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 3/18

11:32 am-12:39 am

2 stops12h 07m

Detroit Metropolitan Wayne County

Tue 3/24

6:05 am-10:32 am

1 stop5h 27m

$167

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Mon 5/4

8:23 pm-11:31 am

1 stop14h 08m

Detroit Metropolitan Wayne County

Fri 5/8

10:27 pm-7:12 pm

1 stop21h 45m

$169

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Fri 5/15

8:13 pm-5:18 pm

1 stop20h 05m

Detroit Metropolitan Wayne County

Tue 5/19

12:26 pm-6:50 am

1 stop19h 24m

$178

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 4/15

8:23 pm-9:05 am

1 stop11h 42m

Detroit Metropolitan Wayne County

Mon 4/20

1:30 pm-11:19 pm

1 stop10h 49m

$181

St. LouisDetroit

STL - DTW

STLDTW

Lambert-St Louis

Wed 4/15

8:23 pm-9:05 am

1 stop11h 42m

Detroit Metropolitan Wayne County

Mon 4/20

10:27 pm-6:50 am

2 stops33h 23m

$182

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 $136, 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 June instead. Flights to Detroit Metropolitan Wayne County Airport in June, while not as cheap as those in August, still average around $148.

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 $323. 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 $730.

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 $267 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 $788. 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 $294 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 $117 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 30% 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 March 2026, prices for St. Louis to Detroit Metropolitan Wayne County Airport flights are approximately 66% 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

$211

Fastest flight time

1h 29m

Direct flights

Every day
The best one-way flight to Detroit Metropolitan Wayne County Airport from St. Louis in the past 72 hours is $211. The best round-trip flight deal from St. Louis to Detroit Metropolitan Wayne County Airport found on momondo in the last 72 hours is $395.
The fastest flight from St. Louis to Detroit Metropolitan Wayne County Airport takes 1h 29m
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 29m, 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 $38Free CancellationRating
6.3
8,498 reviews
Search Spirit Airlines flights
DeltaPriceFrom $75Free CancellationRating
7.9
8,270 reviews
Search Delta flights
FrontierPriceFrom $80Free CancellationRating
5.7
3,040 reviews
Search Frontier flights
SouthwestPriceFrom $119Free CancellationRating
8.0
4,311 reviews
Search Southwest flights

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

    Southwest flies from St. Louis to Detroit Metropolitan Wayne County Airport around 2 times per week, with 4,311 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 $280 for Southwest flights on this route.

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

    Delta (7.9/10 from 8,270 reviews) operates around 3 flights from St. Louis to Detroit Metropolitan Wayne County Airport in any given week. The average Delta airfare for this route is around $290, with deals from around $75 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
Dearborn
Romulus
Troy
Monroe
Southfield
Livonia
Novi
Port Clinton
Roseville
Port Huron
Sterling Heights
Brighton
Dundee
Ypsilanti
Pontiac
Plymouth
Farmington Hills

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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