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Flights from Miami to St. Louis

Hi, I've summed up all the key info for Miami to St. Louis flights

Cheapest one-way

$ 58
Frontier Airlines Wed, Oct 7

68% below next 30d avg. ($183)

Cheapest round-trip

$ 139
Frontier Airlines Wed, Sep 30

59% below next 30d avg. ($343)

When to travel

October Cheapest month
July Peak month

Recommended airlines

With a lowest one-way fare of $58 , travelers can expect an average price of $183 for upcoming trips, while round-trip tickets start at $139 . There are 10 flights weekly on this route. You can arrive at any of the following airports in St. Louis: St. Louis Lambert International Airport (STL) , and St. Louis Downtown Airport (CPS) . Flights from Miami International Airport to St. Louis Lambert International Airport (MIA-STL) are by far the most popular option for this route. To secure the best rates, booking 40 days in advance is recommended, and the cheapest travel days are Tuesday, Wednesday, and Saturday .

Updated 1d ago · This content is an AI-powered summary based on Trip.com data. Prices and availability are subject to change. Please refer to actual prices, availability, and travel conditions.

Explore the cheapest one-way and round-trip flights from Miami to St. Louis over the next 90 days, with one-way fares from $58 and round-trip from $139. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        MIA 7:47 PM
        3h 2m
        Nonstop
        STL 9:49 PM
        Miami - St. Louis | Thu, Oct 1 | American Airlines
        STL 5:00 AM
        2h 49m
        Nonstop
        MIA 8:49 AM
        St. Louis - Miami | Wed, Oct 7 | American Airlines
        $208 $248
        16% off
        16% off
        $248 $208
      • MIA 5:32 AM
        8h 38m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Wed, Sep 30 | Frontier Airlines
        STL 2:29 PM
        5h 4m
        1 stop
        MIA 8:33 PM
        St. Louis - Miami | Mon, Oct 5 | Frontier Airlines
        $139 $248
        44% off
        44% off
        $248 $139
      • MIA 7:20 AM
        12h 55m
        1 stop
        STL 7:15 PM
        Miami - St. Louis | Thu, Oct 29 | Frontier Airlines
        STL 10:35 AM
        6h 37m
        1 stop
        MIA 6:12 PM
        St. Louis - Miami | Mon, Nov 2 | Frontier Airlines
        $169 $248
        32% off
        32% off
        $248 $169
      • MIA 5:05 AM
        13h 35m
        1 stop
        STL 5:40 PM
        Miami - St. Louis | Wed, Oct 21 | Frontier Airlines
        STL 6:35 PM
        2h 35m
        Nonstop
        MIA 10:10 PM
        St. Louis - Miami | Tue, Oct 27 |
        $180
        27% off
        $248 $180
      • MIA 5:50 AM
        14h 27m
        1 stop
        STL 7:17 PM
        Miami - St. Louis | Mon, Sep 14 | Frontier Airlines
        STL 8:10 PM
        27h 36m
        1 stop
        MIA 12:46 AM
        St. Louis - Miami | Fri, Sep 18 | Frontier Airlines
        $191
        23% off
        $248 $191
      • MIA 5:15 AM
        13h 25m
        1 stop
        STL 5:40 PM
        Miami - St. Louis | Fri, Oct 9 | Frontier Airlines
        STL 2:25 PM
        2h 35m
        Nonstop
        MIA 6:00 PM
        St. Louis - Miami | Mon, Oct 12 |
        $192
        23% off
        $248 $192
      • MIA 11:54 AM
        6h 4m
        1 stop
        STL 4:58 PM
        Miami - St. Louis | Thu, Oct 8 | Frontier Airlines
        STL 4:19 PM
        7h 28m
        1 stop
        MIA 12:47 AM
        St. Louis - Miami | Wed, Oct 14 | Frontier Airlines
        $203
        18% off
        $248 $203
      • MIA 5:32 AM
        8h 38m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Wed, Oct 7 | Frontier Airlines
        STL 4:19 PM
        7h 28m
        1 stop
        MIA 12:47 AM
        St. Louis - Miami | Wed, Oct 14 | Frontier Airlines
        $206
        17% off
        $248 $206
      • MIA 1:00 PM
        17h 25m
        1 stop
        STL 2:00 PM
        Miami - St. Louis | Sat, Sep 12 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        MIA 4:00 PM
        St. Louis - Miami | Mon, Sep 14 | Normal Airline
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      • MIA 9:43 PM
        16h 27m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Wed, Oct 7 | Frontier Airlines
        $58 $183
        68% off
        68% off
        $183 $58
      • MIA 10:36 PM
        20h 4m
        1 stop
        STL 5:40 PM
        Miami - St. Louis | Wed, Oct 14 | Frontier Airlines
        $60 $183
        67% off
        67% off
        $183 $60
      • MIA 5:32 AM
        8h 38m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Thu, Sep 24 | Frontier Airlines
        $61 $183
        67% off
        67% off
        $183 $61
      • MIA 9:43 PM
        16h 27m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Wed, Sep 30 | Frontier Airlines
        $61
        67% off
        $183 $61
      • MIA 5:32 AM
        8h 38m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Thu, Oct 1 | Frontier Airlines
        $62
        66% off
        $183 $62
      • MIA 10:36 PM
        20h 4m
        1 stop
        STL 5:40 PM
        Miami - St. Louis | Wed, Oct 21 | Frontier Airlines
        $64
        65% off
        $183 $64
      • MIA 5:32 AM
        8h 38m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Tue, Oct 6 | Frontier Airlines
        $68
        63% off
        $183 $68
      • MIA 9:43 PM
        16h 27m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Mon, Oct 5 | Frontier Airlines
        $68
        63% off
        $183 $68
      • MIA 10:03 AM
        24h 37m
        1 stop
        STL 9:40 AM
        Miami - St. Louis | Thu, Oct 15 | Frontier Airlines
        $68
        63% off
        $183 $68
      • MIA 5:32 AM
        8h 38m
        1 stop
        STL 1:10 PM
        Miami - St. Louis | Tue, Sep 29 | Frontier Airlines
        $153
        16% off
        $183 $153
      • MIA 1:00 PM
        17h 25m
        1 stop
        STL 2:00 PM
        Miami - St. Louis | Sat, Sep 12 | Normal Airline
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        Find more flights

Flight.News
Flights from Miami to St. Louis operate an average of 6 times per day over the past 7 days, with a 39.0% on-time departure rate and a 90.2% on-time arrival rate.

Which airlines are the most popular for Miami to St. Louis flights?

You can choose from 2 airlines that fly from Miami to St. Louis, including Frontier Airlines, American Airlines, Frontier Airlines has lowest fares on this route.
Frontier Airlines logo Frontier Airlines
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Miami to St. Louis according to previous 12 months data from Trip.com.

Flight Info | Miami to St. Louis

The distance between Miami and St. Louis is approximately 1,700.01 km. It takes around 3 hours 6 minutes on average to fly from Miami to St. Louis. Based on Trip.com's data travel demand peaks in July. The off-season for travel is October.

Cheapest one-way flight price $58
Cheapest round-trip ticket price $139
Off-season for travel October
Peak season for travel July
Flight distance 1,700.01 km
Average flight time 3 hours 6 minutes
Popular airline Frontier Airlines
Frequency ～14/week
Flight statistics for the Miami–St. Louis route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Miami to St. Louis (MIA-STL)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as $58 on Cheapest nonstop routes (e.g. MIA to STL on Wed, Oct 7), while Frontier Airlines offers Cheapest nonstop round-trips from $139 departing on Wed, Sep 30 and returning on Mon, Oct 5.
  • At the moment, you can catch a nonstop flight from Miami to St. Louis with the following airlines, including: Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 3 hours 6 minutes to fly from Miami (MIA) to St. Louis (STL).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Miami to St. Louis is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 10 flight per week flying from Miami to St. Louis. You can check the weekly schedule for popular airlines on this route below: American Airlines: -/-/-/-/-/-/- -- AA1349 (09:15)
  • To find best deals on flights from Miami to St. Louis, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Oct 7, with one-way flights priced at just $58.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for St. Louis travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Miami to St. Louis is October, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Miami to St. Louis on September 23, 2026 with Frontier Airlines, with prices starting at $61.
  • You can arrive at any of the following airports in St. Louis: St. Louis Lambert International Airport (STL), and St. Louis Downtown Airport (CPS). Flights from Miami International Airport to St. Louis Lambert International Airport (MIA-STL) are by far the most popular option for this route.
  • The time difference between St. Louis and Miami is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Miami to St. Louis is $183. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Miami to St. Louis is $343. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Miami and St. Louis, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Frontier Airlinesare the most popular budget airlines flying from Miami to St. Louis. Check baggage, seat and payment fees before comparing the final price.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.