Cheap flights from St. Louis to Miami from $68

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 Miami departing on 1/21. 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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Frontier Logo
7:43 pm - 5:19 amSTL-MIA
8h 36m1 stop
Frontier Logo
5:30 am - 9:40 amMIA-STL
5h 10m1 stop
$228Frontier
Find Deal
Fri, Dec 12 - Sun, Dec 21
Multiple Airlines Logo
10:42 am - 12:46 amSTL-MIA
13h 04m1 stop
Multiple Airlines Logo
6:05 am - 10:33 pmMIA-STL
17h 28m2 stops
$229Multiple Airlines
Find Deal
Fri, Dec 5 - Sat, Dec 6
Frontier Logo
10:10 pm - 12:47 amSTL-MIA
25h 37m2 stops
Frontier Logo
10:19 pm - 9:40 amMIA-STL
12h 21m1 stop
$231Frontier
Find Deal
Mon, Dec 22 - Mon, Dec 29
Frontier Logo
12:04 pm - 12:46 amSTL-MIA
11h 42m1 stop
Frontier Logo
5:30 am - 9:47 amMIA-STL
5h 17m1 stop
$232Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Frontier Logo
10:48 am - 7:30 pmSTL-MIA
7h 42m1 stop
Frontier Logo
5:30 am - 9:40 amMIA-STL
5h 10m1 stop
$233Frontier
Find Deal
Tue, Dec 30 - Thu, Jan 1
Multiple Airlines Logo
10:57 am - 9:04 pmSTL-MIA
9h 07m1 stop
Multiple Airlines Logo
5:30 am - 10:33 pmMIA-STL
18h 03m2 stops
$235Multiple Airlines
Find Deal
Sun, Dec 21 - Tue, Dec 30
Multiple Airlines Logo
9:07 am - 1:06 pmSTL-MIA
26h 59m2 stops
Multiple Airlines Logo
5:30 am - 9:40 amMIA-STL
5h 10m1 stop
$236Multiple Airlines
Find Deal
Mon, Dec 22 - Tue, Dec 30
Multiple Airlines Logo
10:48 am - 7:30 pmSTL-MIA
7h 42m1 stop
Multiple Airlines Logo
8:00 am - 10:33 pmMIA-STL
15h 33m2 stops
$238Multiple Airlines
Find Deal
Tue, Dec 30 - Wed, Dec 31
Multiple Airlines Logo
10:57 am - 9:04 pmSTL-MIA
9h 07m1 stop
Multiple Airlines Logo
9:59 pm - 9:40 amMIA-STL
12h 41m1 stop
$239Multiple Airlines
Find Deal
Sun, Dec 21 - Mon, Dec 22
Frontier Logo
3:30 pm - 8:33 amSTL-MIA
16h 03m2 stops
Frontier Logo
5:30 am - 9:47 amMIA-STL
5h 17m1 stop
$241Frontier
Find Deal
Fri, Dec 5 - Fri, Dec 12

Frontier flights from St. Louis to Miami

Our best Frontier deals on St. Louis to Miami flight tickets
Frontier
Dec 12
STL7:43 pmLambert-St Louis
8h 36m
1 stop
MIA5:19 amMiami
Dec 21
MIA5:30 amMiami
5h 10m
1 stop
STL9:40 amLambert-St Louis
Frontier
Dec 22
STL10:10 pmLambert-St Louis
25h 37m
2 stops
MIA12:47 amMiami
Dec 29
MIA10:19 pmMiami
12h 21m
1 stop
STL9:40 amLambert-St Louis
Frontier
Dec 4
STL12:04 pmLambert-St Louis
11h 42m
1 stop
MIA12:46 amMiami
Dec 7
MIA5:30 amMiami
5h 17m
1 stop
STL9:47 amLambert-St Louis

United Airlines flights from St. Louis to Miami

Our best United Airlines deals on St. Louis to Miami flight tickets
United Airlines
Dec 1
STL11:20 amLambert-St Louis
7h 32m
1 stop
MIA7:52 pmMiami
Dec 11
MIA10:54 amMiami
12h 51m
2 stops
STL10:45 pmLambert-St Louis
United Airlines
Dec 1
STL11:05 amLambert-St Louis
9h 53m
2 stops
MIA9:58 pmMiami
Dec 11
MIA6:00 amMiami
10h 40m
2 stops
STL3:40 pmLambert-St Louis
United Airlines
Nov 29
STL11:20 amLambert-St Louis
6h 12m
1 stop
MIA6:32 pmMiami
Dec 5
MIA12:50 pmMiami
22h 17m
1 stop
STL10:07 amLambert-St Louis

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Miami 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 November 24, 2025.
Use the filters below to find and compare flights from St. Louis to Miami that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Fri 12/12

7:43 pm-5:19 am

1 stop8h 36m

Miami

Sun 12/21

5:30 am-9:40 am

1 stop5h 10m

$228

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Fri 12/5

10:42 am-12:46 am

1 stop13h 04m

Miami

Sat 12/6

6:05 am-10:33 pm

2 stops17h 28m

$229

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Mon 12/22

10:10 pm-12:47 am

2 stops25h 37m

Miami

Mon 12/29

10:19 pm-9:40 am

1 stop12h 21m

$231

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Thu 12/4

12:04 pm-12:46 am

1 stop11h 42m

Miami

Sun 12/7

5:30 am-9:47 am

1 stop5h 17m

$232

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Tue 12/30

10:48 am-7:30 pm

1 stop7h 42m

Miami

Thu 1/1

5:30 am-9:40 am

1 stop5h 10m

$233

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sun 12/21

10:57 am-9:04 pm

1 stop9h 07m

Miami

Tue 12/30

5:30 am-10:33 pm

2 stops18h 03m

$235

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Mon 12/22

9:07 am-1:06 pm

2 stops26h 59m

Miami

Tue 12/30

5:30 am-9:40 am

1 stop5h 10m

$236

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Tue 12/30

10:48 am-7:30 pm

1 stop7h 42m

Miami

Wed 12/31

8:00 am-10:33 pm

2 stops15h 33m

$238

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sun 12/21

10:57 am-9:04 pm

1 stop9h 07m

Miami

Mon 12/22

9:59 pm-9:40 am

1 stop12h 41m

$239

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Fri 12/5

3:30 pm-8:33 am

2 stops16h 03m

Miami

Fri 12/12

5:30 am-9:47 am

1 stop5h 17m

$241

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 Miami from

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

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 Miami?

What is the cheapest month to fly to Miami?

The month of September is, on average, the cheapest month to fly to Miami from St. Louis, with most prices found around $319. If you are unable to visit Miami during the month of September, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around $329.

What is the cheapest day to depart on your flight to Miami?

The cheapest day to depart from St. Louis to Miami is on a Sunday when prices can be found for as low as $554. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Miami on Saturday is $592.

What is the cheapest time of day to depart on your flight to Miami?

In the evening is the cheapest time of day to fly from St. Louis to Miami when you can find flight prices for as low as $482. Flying to Miami in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $590. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from Lambert-St Louis to Miami for the best Lambert-St Louis - Miami flight prices

How far in advance should I book a flight to Miami?

You are more likely to see cheaper flights to Miami from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Miami for around $404 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Miami from St. Louis for as low as $337 on momondo.

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

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

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

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

As of November 2025, prices for St. Louis to Miami flights are approximately 47% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Miami

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

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

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

Best Price Found

$144

Fastest flight time

2h 40m

Direct flights

Every day

Airports in Miami

1 airport
The best one-way flight to Miami from St. Louis in the past 72 hours is $144. The best round-trip flight deal from St. Louis to Miami found on momondo in the last 72 hours is $369.
The fastest flight from St. Louis to Miami takes 2h 40m
Direct flights go from St. Louis to Miami every day.
There is 1 airport near Miami: Miami (MIA)
  • How far is Lambert-St Louis to Miami by plane?

    The straight-line distance from Lambert-St Louis to Miami is 1061.2 mi. Flights usually cover this in 2h 40m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Lambert-St Louis Airport to Miami Airport are updated daily.

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

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

  • What documentation or ID do you need to fly to Miami Airport?

    The travel and health documents you'll need for your trip to Miami 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 Miami 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 St. Louis to Miami?

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

Best airlines flying from St. Louis to Miami

Compare and see reviews for airlines that fly from St. Louis to Miami with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $76Free CancellationRating
6.3
8,159 reviews
Search Spirit Airlines flights
FrontierPriceFrom $142Free CancellationRating
5.8
3,097 reviews
Search Frontier flights
DeltaPriceFrom $172Free CancellationRating
7.9
7,993 reviews
Search Delta flights
American AirlinesPriceFrom $226Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
SouthwestPriceFrom $271Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
United AirlinesPriceFrom $279Free CancellationRating
7.4
9,039 reviews
Search United Airlines flights
  • Southwest Flights From St. Louis to Miami

    Across 5 Southwest flights from St. Louis to Miami this week, the average price was $461, with the best Southwest deals starting from $271 round-trip. 4,252 users have rated Southwest on momondo, with an average score of 8.0/10.

  • American Airlines Flights From St. Louis to Miami

    The best American Airlines deal for St. Louis to Miami flight tickets found on momondo in the last 72 hours was $226, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $410 round-trip. American Airlines operates 17 flights out of St. Louis into Miami in an average week, so prices vary by time and availability. 11,043 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near Miami?

Book flights to Miami if you plan to visit one of these locations
Miami Beach
Key Largo
Hollywood
Islamorada
Marco Island
Marathon
Palm Beach
Delray Beach
Pompano Beach
Jupiter
Sunny Isles Beach
Dania Beach
Lake Worth
Bonita Springs
Deerfield Beach
Boynton Beach
Miramar
Doral
Miami Gardens
Lauderdale-by-the-Sea

Why use momondo?

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

It is quick and easy to find St. Louis to Miami 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 Miami that suits you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Miami from St. Louis.

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

If you are not ready to book a flight from St. Louis to Miami now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Miami and let you know when they change.

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1 adult
Wed 12/24
Wed 12/31

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