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St. Louis

$157+ Cheap flights from South Bend to St. Louis (SBN - 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SBN — STL
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from South Bend to St. Louis

Cheapest flights from South Bend to St. Louis
Explore the most affordable flight options available from South Bend to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This American Airlines deal was found by Cheapflights users on 3/14. 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 4/56:00 am
SBN
-
STL
1 stop7h 43m
American Airlines
Mon 4/135:20 am
STL
-
SBN
1 stop5h 37m
American Airlines
Deal found 3/14$277
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/28:25 pm
SBN
-
STL
1 stop3h 46m
United Airlines
Mon 4/67:45 am
STL
-
SBN
1 stop6h 06m
United Airlines
Deal found 3/12$279
This United Airlines deal was found by Cheapflights users on 3/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:15 pm
SBN
-
STL
1 stop3h 44m
United Airlines
Sun 3/299:10 am
STL
-
SBN
1 stop4h 41m
United Airlines
Deal found 3/11$289
This Delta deal was found by Cheapflights users on 3/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/56:00 am
SBN
-
STL
1 stop6h 09m
Delta
Mon 4/135:35 pm
STL
-
SBN
1 stop3h 56m
Delta
Deal found 3/14$299
This United Airlines deal was found by Cheapflights users on 3/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/128:15 pm
SBN
-
STL
1 stop3h 44m
United Airlines
Thu 3/197:41 am
STL
-
SBN
1 stop3h 57m
United Airlines
Deal found 3/11$319
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/104:45 pm
SBN
-
STL
1 stop6h 07m
United Airlines
Tue 4/149:10 am
STL
-
SBN
1 stop5h 57m
United Airlines
Deal found 3/12$339
This Delta deal was found by Cheapflights users on 3/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/162:10 pm
SBN
-
STL
1 stop3h 32m
Delta
Sun 4/196:20 am
STL
-
SBN
2 stops6h 10m
Delta
Deal found 3/13$358
This United Airlines deal was found by Cheapflights users on 3/15. 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 3/201:13 pm
SBN
-
STL
1 stop4h 10m
United Airlines
Mon 3/237:00 pm
STL
-
SBN
1 stop3h 23m
United Airlines
Deal found 3/15$361
This United Airlines deal was found by Cheapflights users on 3/15. 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 3/193:26 pm
SBN
-
STL
1 stop3h 34m
United Airlines
Sun 3/227:41 am
STL
-
SBN
1 stop3h 57m
United Airlines
Deal found 3/15$365
This United Airlines deal was found by Cheapflights users on 3/15. 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 3/193:26 pm
SBN
-
STL
1 stop3h 34m
United Airlines
Sat 3/215:00 am
STL
-
SBN
1 stop4h 37m
United Airlines
Deal found 3/15$404
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:00 am
SBN
-
STL
2 stops7h 37m
Delta
Mon 7/62:18 pm
STL
-
SBN
1 stop5h 28m
Delta
Deal found 3/11$417

Find flight deals from South Bend to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from South Bend (SBN) 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 March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(American Airlines)

One-way from

$157
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$364
Provider with most accurate pricing for South Bend/Michiana-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for South Bend/Michiana-Lambert-St Louis flights.
Search Deals
From South Bend/Michiana to Lambert-St Louis
Search Deals
One-way flight from South Bend/Michiana to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Bend 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 March 16, 2026.
Use the filters below to find and compare flights from South Bend to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 4/2

8:25 pm-11:11 pm

1 stop3h 46m

Lambert-St Louis

Mon 4/6

7:45 am-2:51 pm

1 stop6h 06m

$279

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 3/27

8:15 pm-10:59 pm

1 stop3h 44m

Lambert-St Louis

Sun 3/29

6:30 am-12:31 pm

1 stop5h 01m

$289

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 3/26

8:15 pm-10:59 pm

1 stop3h 44m

Lambert-St Louis

Sun 3/29

9:10 am-2:51 pm

1 stop4h 41m

$289

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 5/29

8:20 am-1:10 pm

1 stop5h 50m

Lambert-St Louis

Sun 5/31

6:45 am-1:38 pm

1 stop5h 53m

$299

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 4/16

6:15 am-8:25 am

1 stop3h 10m

Lambert-St Louis

Sun 4/19

9:10 am-4:07 pm

1 stop5h 57m

$299
Quickest round-trip

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 4/10

6:15 am-8:25 am

1 stop3h 10m

Lambert-St Louis

Tue 4/14

6:30 am-12:31 pm

1 stop5h 01m

$339

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 4/16

2:10 pm-4:42 pm

1 stop3h 32m

Lambert-St Louis

Sun 4/19

6:20 am-1:30 pm

2 stops6h 10m

$358

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sun 4/5

8:20 am-5:53 pm

2 stops10h 33m

Lambert-St Louis

Mon 4/13

1:46 pm-8:48 pm

1 stop6h 02m

$434
Cheapest one-way

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 4/9

8:53 pm-7:51 am

1 stop11h 58m

$157

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sun 3/22

8:53 pm-1:34 pm

2 stops17h 41m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from South Bend to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from South Bend to St. Louis in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on South Bend-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on South Bend-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from South Bend-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on South Bend-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for South Bend-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from South Bend to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Bend 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 South Bend to St. Louis

What is the cheapest month to book a flight from South Bend to St. Louis?

Currently, August is the cheapest month in which you can book a flight from South Bend to St. Louis (average of $77). Flying from South Bend to St. Louis in February is currently the most expensive (average of $233). 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.

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 March 16, 2026.
See what other customers who have flown with Delta and United Airlines from South Bend to St. Louis have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,296 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,296 reviews
Delta
7.9
Good
8,296 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,428 reviews
Delta
7.9
Good
8,296 reviews

Entertainment

7.8

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from South Bend 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 South Bend to St. Louis?

    United Airlines and Delta can get you from South Bend to St. Louis in just under 3h 46m. Your travel time can differ by up to 2h 04m. The distance from South Bend to St. Louis is about 295 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from South Bend to St. Louis round-trip?

    According to our current data, Delta ($218), and United Airlines ($258) offers the cheapest pricing from South Bend to St. Louis. Delta is currently priced 36% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from South Bend 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 South Bend to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from South Bend to St. Louis (average of $77). Flying from South Bend to St. Louis in February is currently the most expensive (average of $233). 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
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from South Bend to St. Louis

Discover the top 2 airlines that operate flights from South Bend 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 March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$278FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$354FlexibilityNo cancel feeOn-time69%

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