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Cheap flights from South Bend to St. Louis from $234

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 8/18. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from South Bend to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:16 pm - 8:42 pm
SBN
-
STL
6h 26m
1 stop
Delta Logo
3:50 pm - 10:33 pm
STL
-
SBN
5h 43m
1 stop
$289Delta
Fri, Aug 21 - Fri, Aug 28
United Airlines Logo
3:33 pm - 7:01 pm
SBN
-
STL
4h 28m
1 stop
United Airlines Logo
9:40 am - 2:58 pm
STL
-
SBN
4h 18m
1 stop
$309United Airlines
Sat, Oct 17 - Tue, Nov 3
United Airlines Logo
9:15 am - 12:03 pm
SBN
-
STL
3h 48m
1 stop
United Airlines Logo
6:00 am - 10:46 am
STL
-
SBN
3h 46m
1 stop
$309United Airlines
Sat, Sep 19 - Sun, Sep 20
United Airlines Logo
1:05 pm - 3:38 pm
SBN
-
STL
3h 33m
1 stop
United Airlines Logo
5:30 pm - 11:33 pm
STL
-
SBN
5h 03m
1 stop
$309United Airlines
Fri, Aug 21 - Fri, Aug 28
Multiple Airlines Logo
8:53 pm - 3:28 pm
SBN
-
STL
19h 35m
1 stop
Multiple Airlines Logo
6:17 pm - 5:57 pm
STL
-
SBN
22h 40m
2 stops
$372Multiple Airlines
Thu, Aug 20 - Sun, Aug 23
Multiple Airlines Logo
4:17 pm - 7:39 pm
SBN
-
STL
28h 22m
1 stop
Multiple Airlines Logo
10:35 am - 9:30 am
STL
-
SBN
21h 55m
2 stops
$384Multiple Airlines
Sat, Oct 17 - Tue, Nov 3
Delta Logo
8:00 am - 2:43 pm
SBN
-
STL
7h 43m
2 stops
Delta Logo
5:30 pm - 10:26 pm
STL
-
SBN
3h 56m
1 stop
$409Delta
Fri, Jan 15 - Fri, Jan 29
Delta Logo
8:20 am - 6:27 pm
SBN
-
STL
11h 07m
2 stops
Delta Logo
5:34 pm - 10:33 pm
STL
-
SBN
3h 59m
1 stop
$424Delta
Tue, Aug 11 - Sat, Aug 15
Delta Logo
3:16 pm - 11:58 pm
SBN
-
STL
9h 42m
2 stops
Delta Logo
2:10 pm - 8:50 pm
STL
-
SBN
5h 40m
1 stop
$438Delta
Fri, Aug 21 - Fri, Aug 28
Multiple Airlines Logo
8:53 pm - 6:15 pm
SBN
-
STL
22h 22m
2 stops
Multiple Airlines Logo
4:09 pm - 8:46 am
STL
-
SBN
15h 37m
1 stop
$485Multiple Airlines
Sun, Aug 9 - Wed, Aug 12

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Delta flights from South Bend to St. Louis

Our best Delta deals on South Bend to St. Louis flight tickets
Delta
Aug 21
SBN3:16 pmSouth Bend/Michiana
6h 26m
1 stop
STL8:42 pmLambert-St Louis
Aug 28
STL3:50 pmLambert-St Louis
5h 43m
1 stop
SBN10:33 pmSouth Bend/Michiana
$289
Delta
Jul 31
SBN8:20 amSouth Bend/Michiana
5h 45m
1 stop
STL1:05 pmLambert-St Louis
Aug 5
STL2:10 pmLambert-St Louis
5h 40m
1 stop
SBN8:50 pmSouth Bend/Michiana
$369
Delta
Jul 31
SBN3:09 pmSouth Bend/Michiana
6h 28m
1 stop
STL8:37 pmLambert-St Louis
Aug 4
STL5:34 pmLambert-St Louis
3h 59m
1 stop
SBN10:33 pmSouth Bend/Michiana
$379

United Airlines flights from South Bend to St. Louis

Our best United Airlines deals on South Bend to St. Louis flight tickets
United Airlines
Aug 21
SBN1:05 pmSouth Bend/Michiana
3h 33m
1 stop
STL3:38 pmLambert-St Louis
Aug 28
STL5:30 pmLambert-St Louis
5h 03m
1 stop
SBN11:33 pmSouth Bend/Michiana
$309
United Airlines
Jan 15
SBN11:39 amSouth Bend/Michiana
5h 02m
1 stop
STL3:41 pmLambert-St Louis
Jan 29
STL7:04 pmLambert-St Louis
3h 24m
1 stop
SBN11:28 pmSouth Bend/Michiana
$314
United Airlines
Sep 18
SBN9:10 amSouth Bend/Michiana
3h 52m
1 stop
STL12:02 pmLambert-St Louis
Sep 21
STL12:59 pmLambert-St Louis
4h 08m
1 stop
SBN6:07 pmSouth Bend/Michiana
$334

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 July 30, 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

Fri 8/21

3:16 pm-8:42 pm

1 stop6h 26m

Lambert-St Louis

Fri 8/28

3:50 pm-10:33 pm

1 stop5h 43m

$289

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 10/17

3:33 pm-7:01 pm

1 stop4h 28m

Lambert-St Louis

Tue 11/3

9:40 am-2:58 pm

1 stop4h 18m

$309
Quickest round-trip

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 9/19

9:15 am-12:03 pm

1 stop3h 48m

Lambert-St Louis

Sun 9/20

6:00 am-10:46 am

1 stop3h 46m

$309

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 8/21

1:05 pm-3:38 pm

1 stop3h 33m

Lambert-St Louis

Fri 8/28

5:30 pm-11:33 pm

1 stop5h 03m

$309

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 8/20

8:53 pm-3:28 pm

1 stop19h 35m

Lambert-St Louis

Sun 8/23

6:17 pm-5:57 pm

2 stops22h 40m

$372

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 10/17

4:17 pm-7:39 pm

1 stop28h 22m

Lambert-St Louis

Tue 11/3

10:35 am-9:30 am

2 stops21h 55m

$384

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 1/15

8:00 am-2:43 pm

2 stops7h 43m

Lambert-St Louis

Fri 1/29

5:30 pm-10:26 pm

1 stop3h 56m

$409

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Tue 8/11

8:20 am-6:27 pm

2 stops11h 07m

Lambert-St Louis

Sat 8/15

5:34 pm-10:33 pm

1 stop3h 59m

$424

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Fri 8/21

3:16 pm-11:58 pm

2 stops9h 42m

Lambert-St Louis

Fri 8/28

2:10 pm-8:50 pm

1 stop5h 40m

$438

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sun 8/9

8:53 pm-6:15 pm

2 stops22h 22m

Lambert-St Louis

Wed 8/12

4:09 pm-8:46 am

1 stop15h 37m

$485

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 cheapest month to fly to St. Louis?

In general, January 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 March is another great option to travel to St. Louis, with average flight prices from South Bend averaging around $258.

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 56m

Direct flights

None
The fastest flight from South Bend to St. Louis takes 3h 56m
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 56m.

  • 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
American AirlinesPriceFrom $221Free CancellationRating
7.1
11,847 reviews
Search American Airlines flights
DeltaPriceFrom $239Free CancellationRating
7.8
8,496 reviews
Search Delta flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
10,047 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
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
O'Fallon
Alton
Fenton
Farmington
Clayton
Wentzville
Festus
Eureka
Litchfield
Edwardsville
Grafton
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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