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$130+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
FNT — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$229
(American Airlines)

One-way from

$130
(United Airlines)

Popular in

January

Cheapest in

November

Average price

$348
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. 14% potential increase in price ($66 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 September 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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/22:33 pmFNT - STL
1 stop6h 52mAmerican Airlines
Sun 10/57:23 amSTL - FNT
1 stop5h 40mAmerican Airlines
Deal found 9/9$229
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 9/242:05 pmFNT - STL
1 stop5h 18mUnited Airlines
Sun 9/288:00 amSTL - FNT
1 stop4h 26mUnited Airlines
Deal found 9/9$239
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/248:08 pmFNT - STL
1 stop4h 46mAmerican Airlines
Sun 10/266:00 amSTL - FNT
1 stop3h 22mAmerican Airlines
Deal found 9/9$259
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/108:08 pmFNT - STL
1 stop13h 01mAmerican Airlines
Mon 10/138:42 amSTL - FNT
1 stop13h 27mAmerican Airlines
Deal found 9/11$285
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/107:00 amFNT - STL
1 stop4h 49mUnited Airlines
Sat 10/118:00 amSTL - FNT
1 stop4h 26mUnited Airlines
Deal found 9/8$289
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 10/76:00 amFNT - STL
2 stops7h 11mAmerican Airlines
Thu 10/166:00 amSTL - FNT
1 stop3h 22mAmerican Airlines
Deal found 9/8$294
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/252:05 pmFNT - STL
1 stop5h 12mUnited Airlines
Mon 9/298:00 amSTL - FNT
1 stop4h 26mUnited Airlines
Deal found 9/10$299
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 9/272:33 pmFNT - STL
2 stops9h 34mAmerican Airlines
Wed 10/18:17 amSTL - FNT
2 stops9h 38mAmerican Airlines
Deal found 9/10$304
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 9/217:25 pmFNT - STL
1 stop5h 23mAmerican Airlines
Wed 10/17:23 amSTL - FNT
1 stop5h 40mAmerican Airlines
Deal found 9/10$309
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 9/234:43 pmFNT - STL
1 stop3h 44mUnited Airlines
Sat 9/2711:10 amSTL - FNT
1 stop3h 58mUnited Airlines
Deal found 9/10$314
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 9/232:33 pmFNT - STL
2 stops9h 34mAmerican Airlines
Sun 9/287:23 amSTL - FNT
1 stop5h 40mAmerican Airlines
Deal found 9/10$319

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 September 11, 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 10/24

4:43 pm-9:37 pm

1 stop5h 54m

Lambert-St Louis

Sun 10/26

8:00 am-1:25 pm

1 stop4h 25m

$229

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Fri 10/10

8:08 pm-8:09 am

1 stop13h 01m

Lambert-St Louis

Mon 10/13

8:42 am-11:09 pm

1 stop13h 27m

$285

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Wed 10/8

7:00 am-10:49 am

1 stop4h 49m

Lambert-St Louis

Mon 10/13

5:28 pm-10:29 pm

1 stop4h 01m

$289

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Tue 10/7

8:08 pm-11:54 pm

1 stop4h 46m

Lambert-St Louis

Sat 10/11

6:00 am-10:22 am

1 stop3h 22m

$289

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Fri 10/3

7:00 am-10:49 am

1 stop4h 49m

Lambert-St Louis

Sun 10/5

8:00 am-1:26 pm

1 stop4h 26m

$289

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Tue 10/7

8:08 pm-11:54 pm

1 stop4h 46m

Lambert-St Louis

Wed 10/15

6:00 am-10:22 am

1 stop3h 22m

$289

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Fri 10/10

7:00 am-10:49 am

1 stop4h 49m

Lambert-St Louis

Mon 10/13

5:28 pm-10:29 pm

1 stop4h 01m

$289

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Sat 10/11

7:00 am-10:49 am

1 stop4h 49m

Lambert-St Louis

Tue 10/14

5:28 pm-10:29 pm

1 stop4h 01m

$289

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Wed 10/8

7:00 am-10:49 am

1 stop4h 49m

Lambert-St Louis

Sat 10/11

8:00 am-1:26 pm

1 stop4h 26m

$289

FlintSt. Louis

FNT - STL

FNTSTL

Flint Bishop

Fri 10/10

7:00 am-10:49 am

1 stop4h 49m

Lambert-St Louis

Wed 10/15

6:30 am-1:26 pm

1 stop5h 56m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

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 September 11, 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.

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 September 11, 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
8,937 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

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
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

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
8,937 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

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.

  • How long is the flight from Flint, Michigan to St. Louis?

    For as low as $229, United Airlines can have you in St. Louis from Flint, Michigan in 5h 54m. The distance between Flint, Michigan and St. Louis is about 452 mi. This flight may include one or multiple stops.

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

    Currently priced at $228, 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 $258. American Airlines is 39% 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$290FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$349FlexibilityNo cancel feeOn-time69%

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