Find cheap Frontier flights to Missouri
ICT — STL
Nov 3 — Nov 101
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Leverage Cheapflights for Your Next Trip
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Find Frontier flight deals to Missouri
Cheapest
Best
Direct
Last-minute
One-way
Cheapest Frontier flights from USA to MissouriExplore the most affordable Frontier flight options available from USA to Missouri. Find the lowest fares with prices last updated on October 4, 2026.
Explore the most affordable Frontier flight options available from USA to Missouri. Find the lowest fares with prices last updated on October 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:07 pm -
Nonstop1h 40m
Wed 11/188:43 pm -
Nonstop2h 05m
Deal found 10/1![Frontier logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:07 pm -
Nonstop1h 41m
Mon 10/268:43 pm -
Nonstop2h 06m
Deal found 9/29![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:07 pm -
Nonstop1h 40m
Sun 11/158:43 pm -
Nonstop2h 05m
Deal found 9/29![Frontier logo]()
$121
Best Frontier flights from USA to MissouriDiscover carefully curated Frontier flight deals from USA to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.
Discover carefully curated Frontier flight deals from USA to Missouri that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.
This Super.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:07 pm -
Nonstop1h 40m
Tue 11/38:43 pm -
Nonstop2h 05m
Deal found 9/29![Frontier logo]()
$136
This Super.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:07 pm -
Nonstop1h 41m
Mon 10/268:43 pm -
Nonstop2h 06m
Deal found 9/29![Frontier logo]()
$136
This Super.com deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:07 pm -
Nonstop1h 40m
Sat 11/78:43 pm -
Nonstop2h 05m
Deal found 10/2![Frontier logo]()
$136
Direct Frontier flights from USA to MissouriExplore non-stop Frontier flight options from USA to Missouri based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 4, 2026.
Explore non-stop Frontier flight options from USA to Missouri based on user searches, and compare prices and availability for your desired travel dates. Data last updated October 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:07 pm -
Nonstop1h 40m
Wed 11/188:43 pm -
Nonstop2h 05m
Deal found 10/1![Frontier logo]()
$116
This Priceline deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:55 pm -
Nonstop1h 38m
Sat 12/58:32 pm -
Nonstop2h 02m
Deal found 10/1![Frontier logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:07 pm -
Nonstop1h 41m
Mon 10/268:43 pm -
Nonstop2h 06m
Deal found 9/29![Frontier logo]()
$120
Last-minute Frontier flights from USA to MissouriDiscover last-minute Frontier flight deals from USA to Missouri. Data last updated October 4, 2026 and is based on user searches.
Discover last-minute Frontier flight deals from USA to Missouri. Data last updated October 4, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:07 pm -
Nonstop1h 40m
Wed 11/188:43 pm -
Nonstop2h 05m
Deal found 10/1![Frontier logo]()
$116
This Cheapflightsfares deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:07 pm -
Nonstop1h 41m
Mon 10/268:43 pm -
Nonstop2h 06m
Deal found 9/29![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/145:07 pm -
Nonstop1h 40m
Sun 11/158:43 pm -
Nonstop2h 05m
Deal found 9/29![Frontier logo]()
$121
One-way Frontier flights to MissouriSearch for one-way Frontier flight options to Missouri. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
Search for one-way Frontier flight options to Missouri. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
This Frontier deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:21 pm -
Nonstop2h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$19
This Kiwi.com deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:09 pm -
Nonstop2h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Frontier logo]()
$21
This CheapOair deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:21 pm -
Nonstop2h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Frontier logo]()
$24
Flights to Missouri with Frontier at a glance
Find detailed information about Frontier flights from USA to Missouri. Explore the options provided by Frontier to plan your journey from USA to Missouri. Data last updated October 4, 2026.
Cheapflights Insights
Find cheap Frontier flights to Missouri
US0-USMO
DEN-MCI
DEN-STL
How long is the flight to Missouri with Frontier?
On average, Frontier flights from the United States to Missouri take 2 hours 0 minutes. Flights to Missouri from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Frontier weekly flight availability to Missouri
The most flights to Missouri operated by Frontier are scheduled on a Friday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).
When is the best time to book a flight to Missouri with Frontier?
The best time to book a flight to Missouri with Frontier is 37 days before departure. On average, fares are higher if you book 2 days before departure.
FAQs for Frontier flights to Missouri
Reviews from Frontier flights to Missouri
See what other users thought of their Frontier experience.
Overview
Reviews
Frontier
2,557 reviews
Overview
Boarding
5.8
Comfort
5.4
Crew
6.5
Food
4.5
Entertainment
4.2
Recent reviews
2.0
|Sep 2026They charge $25 to check in with an agent and the only other option is to install the app, so I installed it just for this one flight. Then the app didn't find my reservation so they sent me to an agent anyway. The agent was unfriendly and printed my boarding pass without tsa pre check, so I had to go through the standard line. Also the flight was delayed two hours.
8.0
|Sep 2026I was traveling with a lap infant and got to TSA only to be turned around saying that something was wrong with my boarding pass. I went to an agent and said nothing was wrong, printed me a board pass and I had to rejoin the line. The when I get to the ticket counter I found out they changed my family seat even though I purchased it prior. I was told I got a refund so I’ll see
2.0
|Jul 2026Flight was delayed a whole day - no compensation on food or drinks. Gate staff gave an older gentleman a hard time about his confusion and concern regarding the overnight delay.
10.0
|Jul 2026Better Food and there was no entertainment . You guys could provide head phones and wifi for the passengers
2.0
|Jul 2026Flight delayed 3 hours
1 out of 853
Popular Frontier flights
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your trip
Flights by cabin class
Frontier
Popular destinations
Popular flights
Popular flights to Missouri cities
Popular routes
Popular routes from Missouri
Popular United States flight routes
Top Missouri destinations
United States flights