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St. Louis

$244+ Cheap flights from South Bend to St. Louis (SBN - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
SBN — STL
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
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 December 16, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/309:10 amSBN - STL
1 stop4h 17mUnited Airlines
Sat 1/36:35 pmSTL - SBN
1 stop3h 45mUnited Airlines
Deal found 12/15$249
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:22 pmSBN - STL
1 stop5h 21mUnited Airlines
Sat 12/276:35 pmSTL - SBN
1 stop3h 45mUnited Airlines
Deal found 12/14$269
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/1611:25 amSBN - STL
1 stop5h 15mUnited Airlines
Sun 12/218:05 amSTL - SBN
1 stop5h 52mUnited Airlines
Deal found 12/15$289
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Sat 12/277:50 pmSBN - STL
1 stop3h 53mUnited Airlines
Sat 1/108:05 amSTL - SBN
1 stop3h 39mUnited Airlines
Deal found 12/15$295
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/168:10 amSBN - STL
2 stops8h 56mDelta
Sun 12/213:43 pmSTL - SBN
1 stop5h 56mDelta
Deal found 12/15$314
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Sat 12/271:24 pmSBN - STL
1 stop4h 03mUnited Airlines
Sun 1/114:49 pmSTL - SBN
1 stop18h 55mUnited Airlines
Deal found 12/15$478
This Delta deal was found by Cheapflights users on 12/14. 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.
Mon 12/228:20 amSBN - STL
2 stops11h 00mDelta
Sat 12/275:55 amSTL - SBN
1 stop4h 53mDelta
Deal found 12/14$564
This United Airlines deal was found by Cheapflights users on 12/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1911:30 amSBN - STL
1 stop3h 56mUnited Airlines
Sun 12/218:05 amSTL - SBN
1 stop5h 52mUnited Airlines
Deal found 12/14$644
This Delta deal was found by Cheapflights users on 12/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/275:54 pmSBN - STL
1 stop4h 49mDelta
Sat 1/1011:23 amSTL - SBN
2 stops8h 32mDelta
Deal found 12/15$684
This Delta deal was found by Cheapflights users on 12/14. 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.
Fri 12/194:56 pmSBN - STL
1 stop6h 22mDelta
Sun 12/211:22 pmSTL - SBN
2 stops6h 30mDelta
Deal found 12/14$704
This Delta deal was found by Cheapflights users on 12/14. 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.
Fri 12/194:56 pmSBN - STL
1 stop6h 22mDelta
Mon 12/221:22 pmSTL - SBN
2 stops6h 30mDelta
Deal found 12/14$744

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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$244
(Delta)

Popular in

November

Cheapest in

July

Average price

$367
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
Highest demand for flights based on searches. 27% potential increase in price ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 16, 2025.
Use the filters below to find and compare flights from South Bend to St. Louis that are best for you.

Fly from

South Bend

Fly to

St. Louis

Route

Depart

Return

Price

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 2/12

4:39 pm-9:05 pm

1 stop5h 26m

Lambert-St Louis

Sun 2/15

6:25 am-11:13 am

1 stop3h 48m

$244

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 2/12

2:05 pm-11:36 pm

2 stops10h 31m

Lambert-St Louis

Sun 2/15

6:35 am-1:23 pm

1 stop5h 48m

$244

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 2/13

2:05 pm-11:36 pm

2 stops10h 31m

Lambert-St Louis

Mon 2/16

6:35 am-1:23 pm

1 stop5h 48m

$244

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Tue 12/30

9:10 am-12:27 pm

1 stop4h 17m

Lambert-St Louis

Sat 1/3

6:35 pm-11:20 pm

1 stop3h 45m

$249

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 1/17

4:41 pm-9:13 pm

1 stop5h 32m

Lambert-St Louis

Wed 1/21

9:57 am-4:06 pm

1 stop5h 09m

$272

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 2/19

2:05 pm-11:36 pm

2 stops10h 31m

Lambert-St Louis

Sun 2/22

6:35 am-1:33 pm

1 stop5h 58m

$288

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 12/27

7:50 pm-10:43 pm

1 stop3h 53m

Lambert-St Louis

Sat 1/10

8:05 am-12:44 pm

1 stop3h 39m

$295

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Wed 1/21

9:15 am-12:29 pm

1 stop4h 14m

Lambert-St Louis

Wed 1/28

9:57 am-4:06 pm

1 stop5h 09m

$299

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 2/13

8:15 pm-10:59 pm

1 stop3h 44m

Lambert-St Louis

Mon 2/16

6:55 pm-11:23 pm

1 stop3h 28m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on South Bend-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 July is currently the most expensive (average of $172). 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 SBN to STL?

Find hourly flight availability from South Bend 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 December 16, 2025.

One of the essential ways to save on airfare from South Bend to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 32% on airfare.

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 December 16, 2025.
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
8,010 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

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
8,010 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

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
9,094 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Entertainment

7.9

Overall

7.9

Boarding

8.1

Comfort

7.9

Crew

8.5

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 5h 26m. Your travel time can differ by up to 5h 05m. 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 ($238) offers the cheapest pricing from South Bend to St. Louis. Delta is currently priced 37% 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 July is currently the most expensive (average of $172). 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
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for South Bend to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$258FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$361FlexibilityNo cancel feeOn-time69%

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