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Cheap flights from Miami to St. Louis from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Miami to St. Louis departing on 11/2. 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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0 bags

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Find the cheapest flights from Miami to St. Louis (MIA-STL)

Cheap round-trip flights

Frontier Logo
5:05 am - 10:12 amMIA-STL
6h 07m1 stop
Frontier Logo
4:29 pm - 12:34 amSTL-MIA
7h 05m1 stop
$144Frontier
Find Deal
Sun, Nov 2 - Fri, Nov 7
Frontier Logo
5:30 am - 3:04 pmMIA-STL
10h 34m1 stop
Frontier Logo
10:39 am - 11:27 pmSTL-MIA
11h 48m1 stop
$157Frontier
Find Deal
Thu, Sep 11 - Sun, Sep 14
American Airlines Logo
10:09 pm - 11:59 pmMIA-STL
2h 50mnonstop
American Airlines Logo
5:28 am - 9:17 amSTL-MIA
2h 49mnonstop
$189American Airlines
Find Deal
Tue, Sep 9 - Wed, Sep 10
American Airlines Logo
10:01 pm - 11:56 pmMIA-STL
2h 55mnonstop
American Airlines Logo
6:08 pm - 9:50 pmSTL-MIA
2h 42mnonstop
$194American Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
Delta Logo
4:25 pm - 10:00 pmMIA-STL
6h 35m1 stop
Delta Logo
5:11 pm - 12:23 amSTL-MIA
6h 12m1 stop
$197Delta
Find Deal
Tue, Sep 30 - Wed, Oct 1
Delta Logo
7:30 am - 12:31 pmMIA-STL
6h 01m1 stop
Delta Logo
2:15 pm - 9:22 pmSTL-MIA
6h 07m1 stop
$203Delta
Find Deal
Wed, Sep 10 - Wed, Sep 17
Logo
6:59 pm - 3:04 pmMIA-STL
21h 05m2 stops
Logo
7:55 pm - 12:44 amSTL-MIA
27h 49m1 stop
$220
Find Deal
Wed, Sep 10 - Tue, Sep 16
Southwest Logo
2:50 pm - 4:40 pmMIA-STL
2h 50mnonstop
Southwest Logo
2:15 pm - 9:15 pmSTL-MIA
6h 00m1 stop
$224Southwest
Find Deal
Tue, Sep 9 - Wed, Sep 10
Logo
5:30 am - 3:04 pmMIA-STL
10h 34m1 stop
Logo
7:55 pm - 6:55 pmSTL-MIA
22h 00m2 stops
$225
Find Deal
Mon, Sep 15 - Tue, Sep 16
Southwest Logo
6:55 pm - 8:45 pmMIA-STL
2h 50mnonstop
Southwest Logo
8:20 pm - 12:05 amSTL-MIA
2h 45mnonstop
$229Southwest
Find Deal
Fri, Sep 26 - Sun, Sep 28

Frontier flights from Miami to St. Louis

Our best Frontier deals on Miami to St. Louis flight tickets
Frontier
Nov 2
MIA5:05 amMiami
6h 07m
1 stop
STL10:12 amLambert-St Louis
Nov 7
STL4:29 pmLambert-St Louis
7h 05m
1 stop
MIA12:34 amMiami
$144
Find similar
Frontier
Sep 11
MIA5:30 amMiami
10h 34m
1 stop
STL3:04 pmLambert-St Louis
Sep 14
STL10:39 amLambert-St Louis
11h 48m
1 stop
MIA11:27 pmMiami
$157
Find similar
Frontier
Sep 11
MIA5:30 amMiami
10h 34m
1 stop
STL3:04 pmLambert-St Louis
Sep 14
STL10:39 amLambert-St Louis
11h 48m
1 stop
MIA11:27 pmMiami
$158
Find similar

Delta flights from Miami to St. Louis

Our best Delta deals on Miami to St. Louis flight tickets
Delta
Sep 30
MIA4:25 pmMiami
6h 35m
1 stop
STL10:00 pmLambert-St Louis
Oct 1
STL5:11 pmLambert-St Louis
6h 12m
1 stop
MIA12:23 amMiami
$197
Find similar
Delta
Sep 10
MIA7:30 amMiami
6h 01m
1 stop
STL12:31 pmLambert-St Louis
Sep 17
STL2:15 pmLambert-St Louis
6h 07m
1 stop
MIA9:22 pmMiami
$203
Find similar
Delta
Sep 9
MIA12:30 pmMiami
7h 30m
1 stop
STL7:00 pmLambert-St Louis
Sep 10
STL10:20 amLambert-St Louis
7h 05m
1 stop
MIA6:25 pmMiami
$209
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Miami to St. Louis 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 August 19, 2025.
Use the filters below to find and compare flights from Miami to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Sun 11/2

5:05 am-10:12 am

1 stop6h 07m

Lambert-St Louis

Fri 11/7

4:29 pm-12:34 am

1 stop7h 05m

$144

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 9/11

5:30 am-3:04 pm

1 stop10h 34m

Lambert-St Louis

Sun 9/14

10:39 am-11:27 pm

1 stop11h 48m

$157

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Tue 9/9

10:09 pm-11:59 pm

Nonstop2h 50m

Lambert-St Louis

Wed 9/10

5:28 am-9:17 am

Nonstop2h 49m

$189

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 10/8

10:01 pm-11:56 pm

Nonstop2h 55m

Lambert-St Louis

Sun 10/12

6:08 pm-9:50 pm

Nonstop2h 42m

$194

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Tue 9/30

4:25 pm-10:00 pm

1 stop6h 35m

Lambert-St Louis

Wed 10/1

5:11 pm-12:23 am

1 stop6h 12m

$197

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 9/10

7:30 am-12:31 pm

1 stop6h 01m

Lambert-St Louis

Wed 9/17

2:15 pm-9:22 pm

1 stop6h 07m

$203

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 9/10

6:59 pm-3:04 pm

2 stops21h 05m

Lambert-St Louis

Tue 9/16

7:55 pm-12:44 am

1 stop27h 49m

$220

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Tue 9/9

2:50 pm-4:40 pm

Nonstop2h 50m

Lambert-St Louis

Wed 9/10

2:15 pm-9:15 pm

1 stop6h 00m

$224

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Mon 9/15

5:30 am-3:04 pm

1 stop10h 34m

Lambert-St Louis

Tue 9/16

7:55 pm-6:55 pm

2 stops22h 00m

$225

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 9/26

6:55 pm-8:45 pm

Nonstop2h 50m

Lambert-St Louis

Sun 9/28

8:20 pm-12:05 am

Nonstop2h 45m

$229

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 St. Louis from

How to get the cheapest flight ticket from Miami 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?

In general, September is the cheapest month to fly from Miami to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $259. The month of October is another great option to travel to St. Louis, with average flight prices from Miami averaging around $291.

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 Saturday when prices can be found for as low as $303. 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 Sunday because tickets tend to average around $537. 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 Miami in the morning is the least expensive time of day to depart. momondo users have found prices as low as $373 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $467 per ticket.

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

Fly from Miami to Lambert-St Louis for the best Miami - 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 Miami when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $363 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Miami for as low as $241 on momondo.

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

There are 3 cabin classes available to choose from on Miami 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 Miami to St. Louis flights?

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

How have Miami to St. Louis flight prices changed over time?

As of August 2025, prices for Miami to St. Louis flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Miami to St. Louis

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

Cheap Miami to St. Louis (MIA to STL) flight deals and tips

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

Best Price Found

$72

Fastest flight time

2h 50m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Miami in the past 72 hours is $72. The best round-trip flight deal from Miami to St. Louis found on momondo in the last 72 hours is $144.
The fastest flight from Miami to St. Louis takes 2h 50m
Direct flights go from Miami to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • How far is Miami to Lambert-St Louis by plane?

    A flight from Miami to Lambert-St Louis will travel around 1061.2 mi. 2h 50m is a normal flight duration for this route.

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

    Prices for flights from Miami Airport to Lambert-St Louis Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Miami Airport to Lambert-St Louis Airport.

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

    The necessary travel and health documents for your Lambert-St Louis 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 Miami to St. Louis?

  • What is the most popular airline from Miami to St. Louis?

Best airlines flying from Miami to St. Louis

Compare and see reviews for airlines that fly from Miami to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $89Free CancellationRating
6.3
8,037 reviews
Search Spirit Airlines flights
FrontierPriceFrom $128Free CancellationRating
5.8
3,211 reviews
Search Frontier flights
SouthwestPriceFrom $192Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
DeltaPriceFrom $198Free CancellationRating
7.9
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • Southwest Flights From Miami to St. Louis

    Southwest operates around 7 flights from Miami to St. Louis every week. The average price of these flights found in the last 72 hours has been $367, but momondo users have found Southwest deals from Miami to St. Louis from as low as $192 round-trip. Southwest has been scored 8.0/10 in 4,246 reviews.

  • American Airlines Flights From Miami to St. Louis

    The best American Airlines deal for Miami to St. Louis flight tickets found on momondo in the last 72 hours was $236, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $398 round-trip. American Airlines operates 7 flights out of Miami into St. Louis in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Fenton
Wentzville
Collinsville
Alton
St. Peters
Farmington
Festus
Glencoe
Eureka
Clayton
Edwardsville
Litchfield
Shrewsbury

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Miami to St. Louis. momondo saves you time and could save you money on your trip.

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

Yes. All flights to St. Louis from Miami on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

Yes momondo offers price alerts on flights to St. Louis from Miami. 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.

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.
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