Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $238 (Kiwi.com) |
One-way from | $64 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $439 |
Good round-trip deal | $427 or less |
Good one-way deal | $338 or less |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Tue 1/6
5:11 pm-10:48 am
2 stops16h 37m
Miami
Sat 1/10
7:09 pm-2:48 pm
1 stop20h 39m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Wed 1/14
6:00 am-1:30 pm
1 stop6h 30m
Miami
Sat 1/17
4:19 pm-9:13 pm
1 stop5h 54m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Wed 1/14
11:35 am-8:05 pm
1 stop7h 30m
Miami
Sat 1/17
7:35 am-9:35 am
Nonstop3h 00m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Sat 2/7
5:45 pm-9:25 pm
Nonstop2h 40m
Miami
Fri 2/13
7:20 pm-9:25 pm
Nonstop3h 05m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Sat 1/31
5:45 pm-9:25 pm
Nonstop2h 40m
Miami
Thu 2/26
7:20 pm-9:25 pm
Nonstop3h 05m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Sat 2/21
12:30 pm-10:30 pm
2 stops9h 00m
Miami
Tue 2/24
7:15 am-4:00 pm
2 stops9h 45m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Wed 2/4
10:10 am-5:15 pm
1 stop6h 05m
Miami
Mon 2/9
4:51 pm-10:00 pm
1 stop6h 09m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Fri 1/23
1:10 pm-9:30 pm
1 stop7h 20m
Miami
Wed 1/28
4:55 pm-7:00 pm
Nonstop3h 05m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Fri 1/30
11:30 am-6:35 pm
1 stop6h 05m
Miami
Sat 1/31
7:35 am-9:35 am
Nonstop3h 00m
St. LouisMiami
STL - MIA
STLMIA
Lambert-St Louis
Sat 1/10
5:00 pm-12:51 am
1 stop6h 51m
Miami
Sun 1/18
7:15 am-11:05 am
1 stop4h 50m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from St. Louis to Miami may vary depending on when you book. For the best chance of a lower fare, look to book 33 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, February is the cheapest month in which you can book a flight from St. Louis to Miami (average of $68). Flying from St. Louis to Miami in June is currently the most expensive (average of $122). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
A simple way to save on the total cost of your ticket is to fly from St. Louis to Miami in the evening. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.
Travelers seeking maximum savings on their St. Louis to Miami flight should consider departing on Monday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Dallas (DAL) – chosen by Cheapflights users on 50% of 1-stop itineraries from St. Louis to Miami on Cheapflights.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $248.
Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 5h 03m.
Flights via Dallas (DAL) offer the fastest connection on this route, with an average layover time of 1h 25m.
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Crew
Food
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$69 | Average$156 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$142 | Average$227 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$172 | Average$397 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$405 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$261 | Average$456 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$279 | Average$466 | FlexibilityNo cancel fee | On-time69% |