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Cheap flights from South Bend to St. Louis from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Bend to St. Louis departing on 5/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from South Bend to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:15 pm - 10:50 pm
SBN
-
STL
3h 35m
1 stop
United Airlines Logo
7:45 am - 12:31 pm
STL
-
SBN
3h 46m
1 stop
$299United Airlines
Fri, May 15 - Sun, May 17
United Airlines Logo
3:14 pm - 6:53 pm
SBN
-
STL
4h 39m
1 stop
United Airlines Logo
7:45 am - 12:31 pm
STL
-
SBN
3h 46m
1 stop
$304United Airlines
Fri, May 15 - Sun, May 17
Delta Logo
6:00 am - 11:54 am
SBN
-
STL
6h 54m
1 stop
Delta Logo
6:45 am - 1:38 pm
STL
-
SBN
5h 53m
1 stop
$309Delta
Sat, May 9 - Wed, May 13
Delta Logo
8:20 am - 5:46 pm
SBN
-
STL
10h 26m
2 stops
Delta Logo
6:45 am - 1:38 pm
STL
-
SBN
5h 53m
1 stop
$314Delta
Tue, May 12 - Sat, May 16
United Airlines Logo
6:20 am - 8:39 am
SBN
-
STL
3h 19m
1 stop
United Airlines Logo
6:30 am - 12:31 pm
STL
-
SBN
5h 01m
1 stop
$329United Airlines
Wed, May 13 - Sun, May 17
Delta Logo
8:20 am - 4:46 pm
SBN
-
STL
9h 26m
2 stops
Delta Logo
6:21 am - 2:30 pm
STL
-
SBN
7h 09m
2 stops
$333Delta
Wed, Jun 17 - Tue, Jun 23
Delta Logo
8:20 am - 1:10 pm
SBN
-
STL
5h 50m
1 stop
Delta Logo
6:21 am - 1:38 pm
STL
-
SBN
6h 17m
2 stops
$338Delta
Mon, May 25 - Mon, Jun 1
Delta Logo
2:18 pm - 11:59 pm
SBN
-
STL
10h 41m
2 stops
Delta Logo
6:21 am - 1:38 pm
STL
-
SBN
6h 17m
2 stops
$343Delta
Fri, May 29 - Mon, Jun 1
United Airlines Logo
7:35 am - 12:07 pm
SBN
-
STL
5h 32m
1 stop
United Airlines Logo
1:13 pm - 5:40 pm
STL
-
SBN
3h 27m
1 stop
$349United Airlines
Sat, May 30 - Tue, Jun 2
Delta Logo
6:00 am - 11:54 am
SBN
-
STL
6h 54m
1 stop
Delta Logo
6:21 am - 1:38 pm
STL
-
SBN
6h 17m
2 stops
$354Delta
Sat, May 9 - Wed, May 13

Delta flights from South Bend to St. Louis

Our best Delta deals on South Bend to St. Louis flight tickets
Delta
May 9
SBN6:00 amSouth Bend/Michiana
6h 54m
1 stop
STL11:54 amLambert-St Louis
May 13
STL6:45 amLambert-St Louis
5h 53m
1 stop
SBN1:38 pmSouth Bend/Michiana
$309
Delta
May 12
SBN8:20 amSouth Bend/Michiana
10h 26m
2 stops
STL5:46 pmLambert-St Louis
May 16
STL6:45 amLambert-St Louis
5h 53m
1 stop
SBN1:38 pmSouth Bend/Michiana
$314
Delta
Jun 17
SBN8:20 amSouth Bend/Michiana
9h 26m
2 stops
STL4:46 pmLambert-St Louis
Jun 23
STL6:21 amLambert-St Louis
7h 09m
2 stops
SBN2:30 pmSouth Bend/Michiana
$333

United Airlines flights from South Bend to St. Louis

Our best United Airlines deals on South Bend to St. Louis flight tickets
United Airlines
May 15
SBN8:15 pmSouth Bend/Michiana
3h 35m
1 stop
STL10:50 pmLambert-St Louis
May 17
STL7:45 amLambert-St Louis
3h 46m
1 stop
SBN12:31 pmSouth Bend/Michiana
$299
United Airlines
May 15
SBN6:40 pmSouth Bend/Michiana
3h 33m
1 stop
STL9:13 pmLambert-St Louis
May 17
STL7:45 amLambert-St Louis
3h 46m
1 stop
SBN12:31 pmSouth Bend/Michiana
$304
United Airlines
May 13
SBN6:20 amSouth Bend/Michiana
3h 19m
1 stop
STL8:39 amLambert-St Louis
May 17
STL6:30 amLambert-St Louis
5h 01m
1 stop
SBN12:31 pmSouth Bend/Michiana
$329

momondo 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, momondo users made 832,500 searches. Data last updated April 29, 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
Quickest round-trip

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 5/15

8:15 pm-10:50 pm

1 stop3h 35m

Lambert-St Louis

Sun 5/17

7:45 am-12:31 pm

1 stop3h 46m

$299

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 5/15

3:14 pm-6:53 pm

1 stop4h 39m

Lambert-St Louis

Sun 5/17

7:45 am-12:31 pm

1 stop3h 46m

$304

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 5/9

6:00 am-11:54 am

1 stop6h 54m

Lambert-St Louis

Wed 5/13

6:45 am-1:38 pm

1 stop5h 53m

$309

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Tue 5/12

8:20 am-5:46 pm

2 stops10h 26m

Lambert-St Louis

Sat 5/16

6:45 am-1:38 pm

1 stop5h 53m

$314

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Wed 5/13

6:20 am-8:39 am

1 stop3h 19m

Lambert-St Louis

Sun 5/17

6:30 am-12:31 pm

1 stop5h 01m

$329

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Wed 6/17

8:20 am-4:46 pm

2 stops9h 26m

Lambert-St Louis

Tue 6/23

6:21 am-2:30 pm

2 stops7h 09m

$333

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Mon 5/25

8:20 am-1:10 pm

1 stop5h 50m

Lambert-St Louis

Mon 6/1

6:21 am-1:38 pm

2 stops6h 17m

$338

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 5/29

2:18 pm-11:59 pm

2 stops10h 41m

Lambert-St Louis

Mon 6/1

6:21 am-1:38 pm

2 stops6h 17m

$343

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 5/30

7:35 am-12:07 pm

1 stop5h 32m

Lambert-St Louis

Tue 6/2

1:13 pm-5:40 pm

1 stop3h 27m

$349

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 5/9

6:00 am-11:54 am

1 stop6h 54m

Lambert-St Louis

Wed 5/13

6:21 am-1:38 pm

2 stops6h 17m

$354

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from South Bend to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between South Bend and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, March is the cheapest month to fly from South Bend to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $249. The month of January is another great option to travel to St. Louis, with average flight prices from South Bend averaging around $249.

When to book flights from South Bend to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from South Bend to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap South Bend to St. Louis (SBN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Bend to St. Louis

Fastest flight time

3h 35m

Direct flights

None
The fastest flight from South Bend to St. Louis takes 3h 35m
There are no direct flights from South Bend to St. Louis. There are no popular flight routes from South Bend to St. Louis.
Search flight deals

Frequently asked questions about flying from South Bend to St. Louis

  • How far is South Bend/Michiana to Lambert-St Louis by plane?

    There are 296.5 mi between South Bend/Michiana and Lambert-St Louis. By plane, this route typically takes 3h 35m.

  • When did momondo last update prices for flights from South Bend/Michiana Airport to Lambert-St Louis Airport?

    Prices for flights from South Bend/Michiana Airport to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from South Bend/Michiana Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from South Bend/Michiana Airport to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Bend/Michiana Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from South Bend to St. Louis?

Best airlines flying from South Bend to St. Louis

Compare and see reviews for airlines that fly from South Bend to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $218Free CancellationRating
7.9
8,465 reviews
Search Delta flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from South Bend to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from South Bend to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from South Bend to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from South Bend on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from South Bend to St. Louis?

Once all potential South Bend to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from South Bend to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from South Bend to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

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