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$170+ Cheap flights from Flint, MI to St. Louis (FNT - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
FNT — STL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Flint to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Flint (FNT) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$229
(American Airlines)

One-way from

$170
(American Airlines)

Popular in

January

Cheapest in

November

Average price

$278
From Flint Bishop to Lambert-St Louis
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One-way flight from Flint Bishop to Lambert-St Louis
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Highest demand for flights based on searches. 21% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Flint to St. Louis

Cheapest flights from Flint to St. Louis
Explore the most affordable flight options available from Flint to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/298:12 pmFNT - STL
1 stop4h 39mAmerican Airlines
Sun 8/316:00 amSTL - FNT
1 stop3h 25mAmerican Airlines
Deal found 7/27$229
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/294:43 pmFNT - STL
1 stop3h 44mUnited Airlines
Sun 8/315:30 pmSTL - FNT
1 stop4h 00mUnited Airlines
Deal found 7/27$329
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/36:07 amFNT - STL
2 stops13h 34mMultiple Airlines
Thu 8/710:47 amSTL - FNT
3 stops25h 47mMultiple Airlines
Deal found 7/28$478

Cheapflights Fare Finder

 
Customize your flight search to find flights from Flint to St. Louis 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Flint to St. Louis that are best for you.

Fly from

Flint

Fly to

St. Louis

Route

Depart

Return

Price

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Fri 8/29

8:12 pm-11:51 pm

1 stop4h 39m

Lambert-St Louis

Sun 8/31

6:00 am-10:25 am

1 stop3h 25m

$229

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Fri 8/29

4:43 pm-7:27 pm

1 stop3h 44m

Lambert-St Louis

Sun 8/31

5:30 pm-10:30 pm

1 stop4h 00m

$329

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Fri 8/29

10:55 am-1:12 pm

1 stop3h 17m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Flint to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Flint with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Flint to St. Louis

What is the cheapest month to book a flight from Flint, Michigan to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Flint, Michigan to St. Louis (average of $311). Flying from Flint, Michigan to St. Louis in March is currently the most expensive (average of $356). 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.

What is the cheapest time of day to fly from FNT to STL?

Find hourly flight availability from Flint to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from Flint, Michigan to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 24% versus a flight at noon.

How much does it cost to fly round-trip from Flint, Michigan to St. Louis?

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated July 29, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Flint to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Flint to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Flint, Michigan to St. Louis round-trip?

    Currently priced at $229, American Airlines will fly you from Flint, Michigan to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $329. American Airlines is 38% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Flint to St. Louis that include hotel bookings?

    Yes. In addition to deals on Flint to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Flint to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Flint to St. Louis.

  • Can I find deals for business class flights from Flint to St. Louis?

    Yes. Cheapflights offers flight deals from Flint to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Flint, Michigan to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Flint, Michigan to St. Louis (average of $311). Flying from Flint, Michigan to St. Louis in March is currently the most expensive (average of $356). 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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Top 2 airlines flying from Flint to St. Louis

Discover the top 2 airlines that operate flights from Flint to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$290FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$356FlexibilityNo cancel feeOn-time69%

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