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Cheap flights from South Bend to St. Louis from $126

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 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
3:26 pm - 5:45 pm
SBN
-
STL
3h 19m
1 stop
United Airlines Logo
6:25 am - 12:38 pm
STL
-
SBN
5h 13m
1 stop
$249United Airlines
Fri, Feb 13 - Sun, Feb 15
Multiple Airlines Logo
11:32 am - 10:27 pm
SBN
-
STL
11h 55m
1 stop
Multiple Airlines Logo
3:49 pm - 5:16 pm
STL
-
SBN
24h 27m
1 stop
$278Multiple Airlines
Tue, Feb 24 - Fri, Feb 27
Delta Logo
2:10 pm - 4:42 pm
SBN
-
STL
3h 32m
1 stop
Delta Logo
6:48 am - 1:30 pm
STL
-
SBN
5h 42m
1 stop
$289Delta
Fri, Apr 17 - Sun, Apr 19
United Airlines Logo
1:13 pm - 4:02 pm
SBN
-
STL
3h 49m
1 stop
United Airlines Logo
7:41 am - 2:51 pm
STL
-
SBN
6h 10m
1 stop
$299United Airlines
Sat, Feb 21 - Wed, Feb 25
Multiple Airlines Logo
11:32 am - 10:27 pm
SBN
-
STL
11h 55m
1 stop
Multiple Airlines Logo
8:22 pm - 9:10 am
STL
-
SBN
35h 48m
2 stops
$307Multiple Airlines
Tue, Feb 24 - Fri, Feb 27
Delta Logo
8:20 am - 4:45 pm
SBN
-
STL
9h 25m
2 stops
Delta Logo
10:13 am - 8:50 pm
STL
-
SBN
9h 37m
2 stops
$496Delta
Tue, Feb 24 - Fri, Feb 27
Delta Logo
7:05 am - 10:43 am
SBN
-
STL
4h 38m
1 stop
Delta Logo
6:10 am - 1:20 pm
STL
-
SBN
6h 10m
2 stops
$534Delta
Fri, Feb 13 - Mon, Feb 16
Delta Logo
8:13 am - 3:32 pm
SBN
-
STL
8h 19m
2 stops
Delta Logo
6:48 am - 1:30 pm
STL
-
SBN
5h 42m
1 stop
$569Delta
Fri, Apr 17 - Sun, Apr 19
American Airlines Logo
6:11 am - 12:00 pm
SBN
-
STL
6h 49m
1 stop
American Airlines Logo
7:26 am - 1:07 pm
STL
-
SBN
4h 41m
1 stop
$597American Airlines
Thu, Jun 18 - Thu, Jul 9
Delta Logo
7:05 am - 10:43 am
SBN
-
STL
4h 38m
1 stop
Delta Logo
6:10 am - 1:30 pm
STL
-
SBN
6h 20m
2 stops
$834Delta
Fri, Feb 13 - Sun, Feb 15

United Airlines flights from South Bend to St. Louis

Our best United Airlines deals on South Bend to St. Louis flight tickets
United Airlines
Feb 13
SBN8:15 pmSouth Bend/Michiana
3h 44m
1 stop
STL10:59 pmLambert-St Louis
Feb 17
STL7:41 amLambert-St Louis
3h 57m
1 stop
SBN12:38 pmSouth Bend/Michiana
$249
United Airlines
Feb 6
SBN6:30 pmSouth Bend/Michiana
5h 28m
1 stop
STL10:58 pmLambert-St Louis
Feb 9
STL6:30 amLambert-St Louis
5h 14m
1 stop
SBN12:44 pmSouth Bend/Michiana
$269
United Airlines
Feb 21
SBN1:13 pmSouth Bend/Michiana
3h 49m
1 stop
STL4:02 pmLambert-St Louis
Feb 25
STL7:41 amLambert-St Louis
6h 10m
1 stop
SBN2:51 pmSouth Bend/Michiana
$299

Delta flights from South Bend to St. Louis

Our best Delta deals on South Bend to St. Louis flight tickets
Delta
Feb 3
SBN2:05 pmSouth Bend/Michiana
3h 32m
1 stop
STL4:37 pmLambert-St Louis
Feb 10
STL9:59 amLambert-St Louis
5h 33m
1 stop
SBN4:32 pmSouth Bend/Michiana
$279
Delta
Feb 3
SBN8:20 amSouth Bend/Michiana
9h 25m
2 stops
STL4:45 pmLambert-St Louis
Feb 10
STL6:35 amLambert-St Louis
5h 45m
1 stop
SBN1:20 pmSouth Bend/Michiana
$284
Delta
Apr 17
SBN2:10 pmSouth Bend/Michiana
3h 32m
1 stop
STL4:42 pmLambert-St Louis
Apr 19
STL6:48 amLambert-St Louis
5h 42m
1 stop
SBN1:30 pmSouth Bend/Michiana
$289

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 January 31, 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

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 2/13

3:26 pm-5:45 pm

1 stop3h 19m

Lambert-St Louis

Sun 2/15

6:25 am-12:38 pm

1 stop5h 13m

$249

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Tue 2/24

11:32 am-10:27 pm

1 stop11h 55m

Lambert-St Louis

Fri 2/27

3:49 pm-5:16 pm

1 stop24h 27m

$278

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 4/17

2:10 pm-4:42 pm

1 stop3h 32m

Lambert-St Louis

Sun 4/19

6:48 am-1:30 pm

1 stop5h 42m

$289

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 2/21

1:13 pm-4:02 pm

1 stop3h 49m

Lambert-St Louis

Wed 2/25

7:41 am-2:51 pm

1 stop6h 10m

$299

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Tue 2/24

11:32 am-10:27 pm

1 stop11h 55m

Lambert-St Louis

Fri 2/27

8:22 pm-9:10 am

2 stops35h 48m

$307

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Tue 2/24

8:20 am-4:45 pm

2 stops9h 25m

Lambert-St Louis

Fri 2/27

10:13 am-8:50 pm

2 stops9h 37m

$496

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 2/13

7:05 am-10:43 am

1 stop4h 38m

Lambert-St Louis

Mon 2/16

6:10 am-1:20 pm

2 stops6h 10m

$534

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 4/17

8:13 am-3:32 pm

2 stops8h 19m

Lambert-St Louis

Sun 4/19

6:48 am-1:30 pm

1 stop5h 42m

$569

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 6/18

6:11 am-12:00 pm

1 stop6h 49m

Lambert-St Louis

Thu 7/9

7:26 am-1:07 pm

1 stop4h 41m

$597

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 2/13

7:05 am-10:43 am

1 stop4h 38m

Lambert-St Louis

Sun 2/15

6:10 am-1:30 pm

2 stops6h 20m

$834

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 cheapest month to fly to St. Louis?

In general, July 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 $238. The month of January is another great option to travel to St. Louis, with average flight prices from South Bend averaging around $244.

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 19m

Direct flights

None
The fastest flight from South Bend to St. Louis takes 3h 19m
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

  • 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 19m.

  • 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
8,130 reviews
Search Delta flights
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,219 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
Florissant
O'Fallon
Collinsville
Fenton
St. Peters
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Glencoe
Litchfield
Shrewsbury

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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