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Cheap flights from Miami to St. Louis from $47

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 12/22. 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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0 bags

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Cheap round-trip flights

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Frontier Logo
3:13 pm - 11:07 amMIA-STL
20h 54m1 stop
Frontier Logo
10:42 am - 12:46 amSTL-MIA
13h 04m1 stop
$134Frontier
Find Deal
Wed, Dec 3 - Fri, Dec 5
Frontier Logo
5:58 pm - 11:07 amMIA-STL
18h 09m1 stop
Frontier Logo
10:42 am - 12:46 amSTL-MIA
13h 04m1 stop
$141Frontier
Find Deal
Wed, Dec 3 - Sun, Dec 7
Frontier Logo
5:01 am - 10:12 amMIA-STL
6h 11m1 stop
Frontier Logo
4:56 pm - 12:34 amSTL-MIA
6h 38m1 stop
$163Frontier
Find Deal
Thu, Nov 13 - Fri, Nov 14
Multiple Airlines Logo
2:21 pm - 11:01 pmMIA-STL
9h 40m1 stop
Multiple Airlines Logo
7:04 pm - 3:57 pmSTL-MIA
19h 53m1 stop
$166Multiple Airlines
Find Deal
Wed, Nov 19 - Mon, Nov 24
Multiple Airlines Logo
2:21 pm - 10:12 amMIA-STL
20h 51m1 stop
Multiple Airlines Logo
4:56 pm - 9:58 amSTL-MIA
16h 02m1 stop
$167Multiple Airlines
Find Deal
Wed, Nov 12 - Fri, Nov 14
Frontier Logo
5:01 am - 4:01 pmMIA-STL
12h 00m1 stop
Frontier Logo
7:45 pm - 6:19 amSTL-MIA
9h 34m1 stop
$168Frontier
Find Deal
Fri, Nov 14 - Sun, Nov 16
Frontier Logo
5:01 am - 10:12 amMIA-STL
6h 11m1 stop
Frontier Logo
11:17 am - 12:34 amSTL-MIA
12h 17m1 stop
$169Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Delta Logo
7:35 pm - 11:40 pmMIA-STL
5h 05m1 stop
Delta Logo
5:00 pm - 12:25 amSTL-MIA
6h 25m1 stop
$197Delta
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Fri, Jan 30 - Sat, Feb 7
Delta Logo
7:00 am - 1:00 pmMIA-STL
7h 00m1 stop
Delta Logo
9:30 am - 2:45 pmSTL-MIA
4h 15m1 stop
$202Delta
Find Deal
Mon, Nov 24 - Wed, Dec 3
Delta Logo
7:00 am - 1:00 pmMIA-STL
7h 00m1 stop
Delta Logo
5:17 pm - 12:46 amSTL-MIA
6h 29m1 stop
$207Delta
Find Deal
Mon, Nov 24 - Mon, Nov 24

Frontier flights from Miami to St. Louis

Our best Frontier deals on Miami to St. Louis flight tickets
Frontier
Dec 3
MIA3:13 pmMiami
20h 54m
1 stop
STL11:07 amLambert-St Louis
Dec 5
STL10:42 amLambert-St Louis
13h 04m
1 stop
MIA12:46 amMiami
$134
Find similar
Frontier
Dec 3
MIA5:58 pmMiami
18h 09m
1 stop
STL11:07 amLambert-St Louis
Dec 7
STL10:42 amLambert-St Louis
13h 04m
1 stop
MIA12:46 amMiami
$141
Find similar
Frontier
Nov 13
MIA5:01 amMiami
6h 11m
1 stop
STL10:12 amLambert-St Louis
Nov 14
STL4:56 pmLambert-St Louis
6h 38m
1 stop
MIA12:34 amMiami
$163
Find similar

Spirit Airlines flights from Miami to St. Louis

Our best Spirit Airlines deals on Miami to St. Louis flight tickets
Spirit Airlines
Nov 6
MIA5:45 amMiami
13h 12m
2 stops
STL5:57 pmLambert-St Louis
Nov 9
STL6:21 pmLambert-St Louis
28h 47m
2 stops
MIA12:08 amMiami
$307
Find similar
Spirit Airlines
Nov 6
MIA5:45 amMiami
13h 12m
2 stops
STL5:57 pmLambert-St Louis
Nov 9
STL6:21 pmLambert-St Louis
23h 23m
2 stops
MIA6:44 pmMiami
$311
Find similar
Spirit Airlines
Nov 6
MIA5:45 amMiami
13h 12m
2 stops
STL5:57 pmLambert-St Louis
Nov 9
STL6:21 pmLambert-St Louis
28h 30m
3 stops
MIA11:51 pmMiami
$344
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 October 23, 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

Wed 12/3

3:13 pm-11:07 am

1 stop20h 54m

Lambert-St Louis

Fri 12/5

10:42 am-12:46 am

1 stop13h 04m

$134

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 12/3

5:58 pm-11:07 am

1 stop18h 09m

Lambert-St Louis

Sun 12/7

10:42 am-12:46 am

1 stop13h 04m

$141

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 11/13

5:01 am-10:12 am

1 stop6h 11m

Lambert-St Louis

Fri 11/14

4:56 pm-12:34 am

1 stop6h 38m

$163

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 11/19

2:21 pm-11:01 pm

1 stop9h 40m

Lambert-St Louis

Mon 11/24

7:04 pm-3:57 pm

1 stop19h 53m

$166

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Wed 11/12

2:21 pm-10:12 am

1 stop20h 51m

Lambert-St Louis

Fri 11/14

4:56 pm-9:58 am

1 stop16h 02m

$167

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 11/14

5:01 am-4:01 pm

1 stop12h 00m

Lambert-St Louis

Sun 11/16

7:45 pm-6:19 am

1 stop9h 34m

$168

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Thu 11/13

5:01 am-10:12 am

1 stop6h 11m

Lambert-St Louis

Sun 11/16

11:17 am-12:34 am

1 stop12h 17m

$169

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Fri 1/30

7:35 pm-11:40 pm

1 stop5h 05m

Lambert-St Louis

Sat 2/7

5:00 pm-12:25 am

1 stop6h 25m

$197

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Mon 11/24

7:00 am-1:00 pm

1 stop7h 00m

Lambert-St Louis

Wed 12/3

9:30 am-2:45 pm

1 stop4h 15m

$202

MiamiSt. Louis

MIA - STL

MIASTL

Miami

Mon 11/24

7:00 am-1:00 pm

1 stop7h 00m

Lambert-St Louis

Mon 11/24

5:17 pm-12:46 am

1 stop6h 29m

$207

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, October 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 $274. The month of August is another great option to travel to St. Louis, with average flight prices from Miami averaging around $297.

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 $339. 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 $503. 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 $339 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 $404 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 $368 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 $244 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 October 2025, prices for Miami to St. Louis flights are approximately 26% 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

$139

Fastest flight time

2h 55m

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 $139. The best round-trip flight deal from Miami to St. Louis found on momondo in the last 72 hours is $264.
The fastest flight from Miami to St. Louis takes 2h 55m
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. 5h 05m 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 $80Free CancellationRating
6.3
8,102 reviews
Search Spirit Airlines flights
FrontierPriceFrom $147Free CancellationRating
5.8
3,128 reviews
Search Frontier flights
SouthwestPriceFrom $186Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
DeltaPriceFrom $196Free CancellationRating
7.9
7,982 reviews
Search Delta flights
American AirlinesPriceFrom $229Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights

  • Southwest Flights From Miami to St. Louis

    Southwest operates around 5 flights from Miami to St. Louis every week. The average price of these flights found in the last 72 hours has been $350, but momondo users have found Southwest deals from Miami to St. Louis from as low as $186 round-trip. Southwest has been scored 8.0/10 in 4,236 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 $229, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $382 round-trip. American Airlines operates 5 flights out of Miami into St. Louis in an average week, so prices vary by time and availability. 11,032 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
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Wentzville
Collinsville
Fenton
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
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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