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

Southwest, United Airlines, and Southern / Mokulele are the most popular carriers operating from Michigan to Lambert-St Louis

How long does it take to fly to St. Louis?

Flight times from Michigan to St. Louis vary, but if you’re flying out of Detroit and flying into St. Louis (one of the most popular routes), then the duration is 1h 35m on average. Another popular route from Michigan to St. Louis is flying from Grand Rapids to St. Louis, which will take roughly 3h 58m. Keep in mind that layovers or delays could extend your travel time.

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

The number of flights available between Michigan and St. Louis is 66 per day as of September 2025. The most frequent departure time is 7:00PM, with 40% of daily flights leaving in the evening.

What airlines fly to St. Louis?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to St. Louis from Michigan according to our data. Delta is the first choice among our users, with 44% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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

464 flights are operational weekly from Michigan to St. Louis as of September 2025. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.

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

Prices for flights from Michigan to Lambert-St Louis Airport refresh daily.

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

As of September 2025, there are 6 operators available to choose from for flights from Michigan to Lambert-St Louis Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Michigan to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$49 Cheap Flights from Michigan to St. Louis in 2025/26

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Find the cheapest flights from Michigan to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

12:40 pm - 1:50 pmMDW-STL

1h 10mnonstop

1:15 pm - 2:25 pmSTL-MDW

1h 10mnonstop

$97Southwest

Find Deal

Wed, Oct 15 - Wed, Oct 22

9:25 am - 10:49 amORD-STL

1h 24mnonstop

5:00 am - 6:30 amSTL-ORD

1h 30mnonstop

$97United Airlines

Find Deal

Wed, Oct 15 - Wed, Oct 22

6:53 pm - 8:26 pmORD-STL

1h 33mnonstop

8:42 am - 10:05 amSTL-ORD

1h 23mnonstop

$98American Airlines

Find Deal

Tue, Oct 7 - Wed, Oct 22

7:20 am - 9:06 amORD-STL

25h 46m1 stop

4:00 pm - 11:39 pmSTL-ORD

7h 39m1 stop

$125Frontier

Find Deal

Wed, Oct 1 - Thu, Oct 2

6:45 am - 8:09 amORD-STL

1h 24mnonstop

6:00 am - 7:23 amSTL-ORD

1h 23mnonstop

$134American Airlines

Find Deal

Tue, Oct 21 - Fri, Oct 24

6:20 am - 3:04 pmMDW-STL

8h 44m1 stop

4:00 pm - 11:41 pmSTL-MDW

7h 41m1 stop

$143Frontier

Find Deal

Mon, Sep 29 - Thu, Oct 2

8:15 am - 12:00 pmORD-STL

3h 45m1 stop

1:00 pm - 4:19 pmSTL-ORD

3h 19m1 stop

$150Southern / Mokulele

Find Deal

Sun, Sep 28 - Thu, Oct 2

1:10 pm - 4:35 pmORD-STL

3h 25m1 stop

4:00 pm - 11:39 pmSTL-ORD

7h 39m1 stop

$160Multiple Airlines

Find Deal

Fri, Oct 3 - Mon, Oct 6

8:15 am - 12:00 pmORD-STL

3h 45m1 stop

9:20 am - 4:19 pmSTL-ORD

6h 59m1 stop

$161Southern / Mokulele

Find Deal

Thu, Oct 9 - Mon, Oct 13

8:15 am - 12:00 pmORD-STL

3h 45m1 stop

5:00 am - 6:30 amSTL-ORD

1h 30mnonstop

$171Multiple Airlines

Find Deal

Tue, Oct 7 - Wed, Oct 22

American Airlines flights from Michigan to St. Louis

Our best American Airlines deals on Michigan to St. Louis flight tickets

American Airlines

Oct 7

ORD6:53 pmChicago O'Hare Intl

1h 33m

STL8:26 pmLambert-St Louis

Oct 22

STL8:42 amLambert-St Louis

1h 23m

ORD10:05 amChicago O'Hare Intl

$98

Find similar

American Airlines

Oct 21

ORD6:45 amChicago O'Hare Intl

1h 24m

STL8:09 amLambert-St Louis

Oct 24

STL6:00 amLambert-St Louis

1h 23m

ORD7:23 amChicago O'Hare Intl

$134

Find similar

American Airlines

Nov 6

ORD10:35 pmChicago O'Hare Intl

1h 21m

STL11:56 pmLambert-St Louis

Nov 8

STL2:08 pmLambert-St Louis

5h 34m

1 stop

ORD7:42 pmChicago O'Hare Intl

$174

Find similar

Delta flights from Michigan to St. Louis

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

Delta

Oct 21

MDW9:35 amChicago Midway

3h 47m

1 stop

STL1:22 pmLambert-St Louis

Oct 27

STL2:15 pmLambert-St Louis

4h 10m

1 stop

MDW6:25 pmChicago Midway

$177

Find similar

Delta

Nov 6

ORD6:45 amChicago O'Hare Intl

5h 50m

1 stop

STL12:35 pmLambert-St Louis

Nov 8

STL6:00 amLambert-St Louis

6h 40m

2 stops

ORD12:40 pmChicago O'Hare Intl

$182

Find similar

Delta

Oct 21

MDW9:35 amChicago Midway

3h 47m

1 stop

STL1:22 pmLambert-St Louis

Oct 24

STL3:59 pmLambert-St Louis

6h 15m

1 stop

MDW10:14 pmChicago Midway

$184

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Wed 10/15

12:40 pm-1:50 pm

Nonstop1h 10m

Lambert-St Louis

Wed 10/22

1:15 pm-2:25 pm

Nonstop1h 10m

$97

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 10/15

9:25 am-10:49 am

Nonstop1h 24m

Lambert-St Louis

Wed 10/22

5:00 am-6:30 am

Nonstop1h 30m

$97

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 10/7

6:53 pm-8:26 pm

Nonstop1h 33m

Lambert-St Louis

Wed 10/22

8:42 am-10:05 am

Nonstop1h 23m

$98

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 10/1

7:20 am-9:06 am

1 stop25h 46m

Lambert-St Louis

Thu 10/2

4:00 pm-11:39 pm

1 stop7h 39m

$125

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 10/21

6:45 am-8:09 am

Nonstop1h 24m

Lambert-St Louis

Fri 10/24

6:00 am-7:23 am

Nonstop1h 23m

$134

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Mon 9/29

6:20 am-3:04 pm

1 stop8h 44m

Lambert-St Louis

Thu 10/2

4:00 pm-11:41 pm

1 stop7h 41m

$143

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sun 9/28

8:15 am-12:00 pm

1 stop3h 45m

Lambert-St Louis

Thu 10/2

1:00 pm-4:19 pm

1 stop3h 19m

$150

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Fri 10/3

1:10 pm-4:35 pm

1 stop3h 25m

Lambert-St Louis

Mon 10/6

4:00 pm-11:39 pm

1 stop7h 39m

$160

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 10/9

8:15 am-12:00 pm

1 stop3h 45m

Lambert-St Louis

Mon 10/13

9:20 am-4:19 pm

1 stop6h 59m

$161

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 10/7

8:15 am-12:00 pm

1 stop3h 45m

Lambert-St Louis

Wed 10/22

5:00 am-6:30 am

Nonstop1h 30m

$171

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

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 cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from Michigan to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $121. The month of July is another great option to travel to St. Louis, with average flight prices from Michigan averaging around $143.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $304. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $387. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Michigan at noon is the least expensive time of day to depart. momondo users have found prices as low as $279 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $346 per ticket.

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

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

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Michigan when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $271 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Michigan for as low as $69 on momondo.

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

There are 4 cabin classes available to choose from on Michigan to Lambert-St Louis 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 Michigan to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Michigan to St. Louis.

Cheap Michigan to St. Louis flight deals and tips

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

Best Price Found	$135
Fastest flight time	1h 10m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Michigan in the past 72 hours is $135. The best round-trip flight deal from Michigan to St. Louis found on momondo in the last 72 hours is $257.

The fastest flight from Michigan to St. Louis takes 1h 10m

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

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Michigan to Lambert-St Louis Airport?
Prices for flights from Michigan to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Michigan to Lambert-St Louis Airport?
As of September 2025, there are 6 operators available to choose from for flights from Michigan to Lambert-St Louis Airport.
How old do you have to be to fly from Michigan to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Michigan to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Michigan to St. Louis?
Based on momondo bookings for flights between Michigan and St. Louis, the leading plane model is Boeing 717-200, making up 24.60% of the total bookings. Other popular models include Boeing 737-700 Passenger/BBJ1 (winglets) with 17.77%, Boeing 737-800 Passenger/BBJ2 (winglets) with 11.14%, and Airbus A320-100/200 with 8.53%.

Best airlines flying from Michigan to St. Louis

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

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $36	Free Cancellation	Rating 6.3 8,019 reviews	Search Spirit Airlines flights
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
Southwest	PriceFrom $148	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
American Airlines	PriceFrom $200	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $228	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights

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Clayton

Edwardsville

Eureka

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Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Michigan to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once all potential Michigan to St. Louis 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 Michigan to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from Michigan are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Michigan to St. Louis from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Michigan to St. Louis departing on 10/16. 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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American Airlines flights from Michigan to St. Louis

Our best American Airlines deals on Michigan to St. Louis flight tickets

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

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

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 St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

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

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

How far in advance should I book a flight to St. Louis?

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

There are 4 cabin classes available to choose from on Michigan to Lambert-St Louis 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 Michigan to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Michigan to St. Louis.

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

Southwest, United Airlines, and Southern / Mokulele are the most popular carriers operating from Michigan to Lambert-St Louis

What airlines fly to St. Louis?

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

The number of flights available between Michigan and St. Louis is 66 per day as of September 2025. The most frequent departure time is 7:00PM, with 40% of daily flights leaving in the evening.

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

464 flights are operational weekly from Michigan to St. Louis as of September 2025. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.

How long does it take to fly to St. Louis?

Cheap Michigan to St. Louis flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

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

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

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

What documentation or ID do you need to fly to Lambert-St Louis Airport?

What is the most popular plane model from Michigan to St. Louis?

Best airlines flying from Michigan to St. Louis

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

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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