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Cheap flights from South Bend to St. Louis from $165

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 7/24. 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.
United Airlines Logo
7:45 am - 12:11 pm
SBN
-
STL
5h 26m
1 stop
United Airlines Logo
7:05 pm - 11:23 pm
STL
-
SBN
3h 18m
1 stop
$279United Airlines
Fri, Aug 7 - Sun, Aug 9
Multiple Airlines Logo
7:27 pm - 5:37 pm
SBN
-
STL
23h 10m
2 stops
Multiple Airlines Logo
6:58 pm - 12:41 pm
STL
-
SBN
16h 43m
1 stop
$316Multiple Airlines
Mon, Aug 10 - Wed, Aug 19
Multiple Airlines Logo
1:53 pm - 6:15 pm
SBN
-
STL
29h 22m
1 stop
Multiple Airlines Logo
5:33 pm - 5:57 pm
STL
-
SBN
47h 24m
2 stops
$331Multiple Airlines
Sun, Aug 9 - Wed, Aug 19
Multiple Airlines Logo
1:53 pm - 6:15 pm
SBN
-
STL
29h 22m
1 stop
Multiple Airlines Logo
6:58 pm - 12:41 pm
STL
-
SBN
16h 43m
1 stop
$339Multiple Airlines
Sun, Aug 9 - Wed, Aug 19
United Airlines Logo
6:05 am - 10:27 am
SBN
-
STL
5h 22m
1 stop
United Airlines Logo
11:45 am - 5:33 pm
STL
-
SBN
4h 48m
1 stop
$349United Airlines
Sat, Oct 31 - Tue, Nov 3
Multiple Airlines Logo
8:53 pm - 11:59 pm
SBN
-
STL
28h 06m
1 stop
Multiple Airlines Logo
6:34 pm - 6:45 pm
STL
-
SBN
23h 11m
2 stops
$357Multiple Airlines
Sun, Jul 12 - Sun, Jul 19
Delta Logo
8:20 am - 1:14 pm
SBN
-
STL
5h 54m
1 stop
Delta Logo
2:10 pm - 8:50 pm
STL
-
SBN
5h 40m
1 stop
$359Delta
Mon, Aug 10 - Mon, Aug 17
United Airlines Logo
8:00 pm - 11:29 pm
SBN
-
STL
4h 29m
1 stop
United Airlines Logo
6:00 am - 11:06 am
STL
-
SBN
4h 06m
1 stop
$369United Airlines
Sat, Jun 27 - Sun, Jun 28
Multiple Airlines Logo
8:53 pm - 2:48 pm
SBN
-
STL
18h 55m
2 stops
Multiple Airlines Logo
8:21 pm - 12:41 pm
STL
-
SBN
15h 20m
1 stop
$371Multiple Airlines
Thu, Aug 27 - Sat, Aug 29
Multiple Airlines Logo
9:26 am - 11:59 pm
SBN
-
STL
15h 33m
1 stop
Multiple Airlines Logo
6:58 pm - 12:41 pm
STL
-
SBN
16h 43m
1 stop
$377Multiple Airlines
Mon, Aug 10 - Wed, Aug 19

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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 7
SBN7:45 amSouth Bend/Michiana
5h 26m
1 stop
STL12:11 pmLambert-St Louis
Aug 9
STL7:05 pmLambert-St Louis
3h 18m
1 stop
SBN11:23 pmSouth Bend/Michiana
$279
United Airlines
Jun 20
SBN8:00 pmSouth Bend/Michiana
4h 29m
1 stop
STL11:29 pmLambert-St Louis
Jun 21
STL5:29 pmLambert-St Louis
4h 58m
1 stop
SBN11:27 pmSouth Bend/Michiana
$329
United Airlines
Jun 16
SBN3:15 pmSouth Bend/Michiana
4h 58m
1 stop
STL7:13 pmLambert-St Louis
Jun 23
STL6:00 amLambert-St Louis
4h 06m
1 stop
SBN11:06 amSouth Bend/Michiana
$339

Delta flights from South Bend to St. Louis

Our best Delta deals on South Bend to St. Louis flight tickets
Delta
Aug 10
SBN8:20 amSouth Bend/Michiana
5h 54m
1 stop
STL1:14 pmLambert-St Louis
Aug 17
STL2:10 pmLambert-St Louis
5h 40m
1 stop
SBN8:50 pmSouth Bend/Michiana
$359
Delta
Jul 10
SBN3:09 pmSouth Bend/Michiana
6h 28m
1 stop
STL8:37 pmLambert-St Louis
Jul 16
STL9:24 amLambert-St Louis
5h 56m
1 stop
SBN4:20 pmSouth Bend/Michiana
$399
Delta
Jul 10
SBN3:09 pmSouth Bend/Michiana
6h 28m
1 stop
STL8:37 pmLambert-St Louis
Jul 16
STL9:24 amLambert-St Louis
5h 56m
1 stop
SBN4:20 pmSouth Bend/Michiana
$404

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 June 15, 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 8/7

7:45 am-12:11 pm

1 stop5h 26m

Lambert-St Louis

Sun 8/9

7:05 pm-11:23 pm

1 stop3h 18m

$279

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Mon 8/10

7:27 pm-5:37 pm

2 stops23h 10m

Lambert-St Louis

Wed 8/19

6:58 pm-12:41 pm

1 stop16h 43m

$316

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sun 8/9

1:53 pm-6:15 pm

1 stop29h 22m

Lambert-St Louis

Wed 8/19

5:33 pm-5:57 pm

2 stops47h 24m

$331

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sun 8/9

1:53 pm-6:15 pm

1 stop29h 22m

Lambert-St Louis

Wed 8/19

6:58 pm-12:41 pm

1 stop16h 43m

$339

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 10/31

6:05 am-10:27 am

1 stop5h 22m

Lambert-St Louis

Tue 11/3

11:45 am-5:33 pm

1 stop4h 48m

$349

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sun 7/12

8:53 pm-11:59 pm

1 stop28h 06m

Lambert-St Louis

Sun 7/19

6:34 pm-6:45 pm

2 stops23h 11m

$357

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Mon 8/10

8:20 am-1:14 pm

1 stop5h 54m

Lambert-St Louis

Mon 8/17

2:10 pm-8:50 pm

1 stop5h 40m

$359
Quickest round-trip

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Sat 6/27

8:00 pm-11:29 pm

1 stop4h 29m

Lambert-St Louis

Sun 6/28

6:00 am-11:06 am

1 stop4h 06m

$369

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Thu 8/27

8:53 pm-2:48 pm

2 stops18h 55m

Lambert-St Louis

Sat 8/29

8:21 pm-12:41 pm

1 stop15h 20m

$371

South BendSt. Louis

SBN - STL

SBNSTL

South Bend/Michiana

Mon 8/10

9:26 am-11:59 pm

1 stop15h 33m

Lambert-St Louis

Wed 8/19

6:58 pm-12:41 pm

1 stop16h 43m

$377

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 54m

Direct flights

None
The fastest flight from South Bend to St. Louis takes 3h 54m
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 54m.

  • 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
8,396 reviews
Search Delta flights
American AirlinesPriceFrom $221Free CancellationRating
7.1
11,661 reviews
Search American Airlines flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
9,830 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
Maryland Heights
Florissant
O'Fallon
St. Peters
Collinsville
Alton
Wentzville
Clayton
Fenton
Farmington
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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