Cheap flights from St. Louis to Miami from $73

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 9/21. 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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Find the cheapest flights from St. Louis to Miami (STL-MIA)

Cheap round-trip flights

Frontier Logo
10:17 am - 5:33 pmSTL-MIA
6h 16m1 stop
Frontier Logo
7:55 pm - 10:37 amMIA-STL
15h 42m1 stop
$165Frontier
Find Deal
Sun, Oct 19 - Wed, Oct 22
Frontier Logo
7:55 pm - 12:44 amSTL-MIA
27h 49m1 stop
Frontier Logo
5:30 am - 3:04 pmMIA-STL
10h 34m1 stop
$170Frontier
Find Deal
Fri, Sep 12 - Sun, Sep 21
Southwest Logo
10:20 am - 2:05 pmSTL-MIA
2h 45mnonstop
Southwest Logo
2:50 pm - 4:40 pmMIA-STL
2h 50mnonstop
$189Southwest
Find Deal
Tue, Sep 16 - Tue, Sep 23
American Airlines Logo
5:28 am - 9:17 amSTL-MIA
2h 49mnonstop
American Airlines Logo
10:09 pm - 11:59 pmMIA-STL
2h 50mnonstop
$194American Airlines
Find Deal
Tue, Sep 16 - Fri, Sep 26
Delta Logo
6:00 am - 1:11 pmSTL-MIA
6h 11m1 stop
Delta Logo
8:11 am - 2:43 pmMIA-STL
7h 32m1 stop
$197Delta
Find Deal
Tue, Oct 14 - Tue, Oct 21
 Logo
7:55 pm - 12:22 pmSTL-MIA
15h 27m2 stops
 Logo
6:45 am - 3:04 pmMIA-STL
9h 19m1 stop
Sat, Sep 6 - Mon, Sep 8
Southwest Logo
8:10 pm - 11:50 pmSTL-MIA
2h 40mnonstop
Southwest Logo
10:30 am - 12:30 pmMIA-STL
3h 00mnonstop
$209Southwest
Find Deal
Sun, Oct 19 - Wed, Oct 22
Delta Logo
6:52 pm - 12:29 amSTL-MIA
4h 37m1 stop
Delta Logo
6:00 am - 12:35 pmMIA-STL
7h 35m1 stop
$223Delta
Find Deal
Sun, Oct 12 - Sat, Oct 18
American Airlines Logo
5:28 am - 9:17 amSTL-MIA
2h 49mnonstop
American Airlines Logo
10:09 pm - 11:59 pmMIA-STL
2h 50mnonstop
$224American Airlines
Find Deal
Wed, Sep 10 - Fri, Sep 12
 Logo
7:55 pm - 12:44 amSTL-MIA
27h 49m1 stop
 Logo
6:59 pm - 9:06 amMIA-STL
39h 07m2 stops
Tue, Sep 16 - Tue, Sep 23

Frontier flights from St. Louis to Miami

Our best Frontier deals on St. Louis to Miami flight tickets
Frontier
Oct 19
STL10:17 amLambert-St Louis
6h 16m
1 stop
MIA5:33 pmMiami
Oct 22
MIA7:55 pmMiami
15h 42m
1 stop
STL10:37 amLambert-St Louis
Frontier
Sep 12
STL7:55 pmLambert-St Louis
27h 49m
1 stop
MIA12:44 amMiami
Sep 21
MIA5:30 amMiami
10h 34m
1 stop
STL3:04 pmLambert-St Louis
Frontier
Oct 26
STL10:17 amLambert-St Louis
6h 16m
1 stop
MIA5:33 pmMiami
Oct 31
MIA6:00 amMiami
28h 07m
1 stop
STL9:07 amLambert-St Louis

Southwest flights from St. Louis to Miami

Our best Southwest deals on St. Louis to Miami flight tickets
Southwest
Sep 16
STL10:20 amLambert-St Louis
2h 45m
MIA2:05 pmMiami
Sep 23
MIA2:50 pmMiami
2h 50m
STL4:40 pmLambert-St Louis
Southwest
Oct 19
STL8:10 pmLambert-St Louis
2h 40m
MIA11:50 pmMiami
Oct 22
MIA10:30 amMiami
3h 00m
STL12:30 pmLambert-St Louis
Southwest
Oct 14
STL6:35 pmLambert-St Louis
2h 40m
MIA10:15 pmMiami
Oct 21
MIA6:55 amMiami
7h 55m
2 stops
STL1:50 pmLambert-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 August 18, 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

Sun 10/19

10:17 am-5:33 pm

1 stop6h 16m

Miami

Wed 10/22

7:55 pm-10:37 am

1 stop15h 42m

$165

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Fri 9/12

7:55 pm-12:44 am

1 stop27h 49m

Miami

Sun 9/21

5:30 am-3:04 pm

1 stop10h 34m

$170

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Tue 9/16

10:20 am-2:05 pm

Nonstop2h 45m

Miami

Tue 9/23

2:50 pm-4:40 pm

Nonstop2h 50m

$189

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Tue 9/16

5:28 am-9:17 am

Nonstop2h 49m

Miami

Fri 9/26

10:09 pm-11:59 pm

Nonstop2h 50m

$194

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Tue 10/14

6:00 am-1:11 pm

1 stop6h 11m

Miami

Tue 10/21

8:11 am-2:43 pm

1 stop7h 32m

$197

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sat 9/6

7:55 pm-12:22 pm

2 stops15h 27m

Miami

Mon 9/8

6:45 am-3:04 pm

1 stop9h 19m

$208

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sun 10/19

8:10 pm-11:50 pm

Nonstop2h 40m

Miami

Wed 10/22

10:30 am-12:30 pm

Nonstop3h 00m

$209

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Sun 10/12

6:52 pm-12:29 am

1 stop4h 37m

Miami

Sat 10/18

6:00 am-12:35 pm

1 stop7h 35m

$223

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Wed 9/10

5:28 am-9:17 am

Nonstop2h 49m

Miami

Fri 9/12

10:09 pm-11:59 pm

Nonstop2h 50m

$224

St. LouisMiami

STL - MIA

STLMIA

Lambert-St Louis

Tue 9/16

7:55 pm-12:44 am

1 stop27h 49m

Miami

Tue 9/23

6:59 pm-9:06 am

2 stops39h 07m

$226

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 cheapest month to fly to Miami?

The month of August is, on average, the cheapest month to fly to Miami from St. Louis, with most prices found around $330. If you are unable to visit Miami during the month of August, then departing from St. Louis during the month October is also very affordable. Most momondo users find prices during this month for around $370.

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 Wednesday when prices can be found for as low as $547. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Miami on Thursday 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 $596. 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 $407 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 $353 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.

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

As of August 2025, prices for St. Louis to Miami flights are approximately 9% more expensive 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

$73

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 $73. The best round-trip flight deal from St. Louis to Miami found on momondo in the last 72 hours is $165.
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
8,038 reviews
Search Spirit Airlines flights
FrontierPriceFrom $130Free CancellationRating
5.8
3,212 reviews
Search Frontier flights
DeltaPriceFrom $199Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $269Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $344Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
  • Southwest Flights From St. Louis to Miami

    Across 7 Southwest flights from St. Louis to Miami this week, the average price was $458, with the best Southwest deals starting from $269 round-trip. 4,246 users have rated Southwest on momondo, with an average score of 8.0/10.

  • United Airlines Flights From St. Louis to Miami

    The best United Airlines deal for St. Louis to Miami flight tickets found on momondo in the last 72 hours was $344, round-trip. It should be noted that an average United Airlines flight deal for this route in this time was higher, at $458 round-trip. United Airlines operates 2 flights out of St. Louis into Miami in an average week, so prices vary by time and availability. 8,925 United Airlines reviews by users on momondo have scored the airline at 7.4/10.

Traveling to a place near Miami?

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

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
Sat 8/23
Sat 8/30

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