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Cheap flights from Rochester to St. Louis from $152

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rochester to St. Louis departing on 4/1. 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 Rochester to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:05 pm - 12:05 am
ROC
-
STL
6h 00m
1 stop
American Airlines Logo
5:51 am - 11:22 am
STL
-
ROC
4h 31m
1 stop
$309American Airlines
Mon, Apr 6 - Wed, Apr 8
American Airlines Logo
8:24 pm - 11:46 pm
ROC
-
STL
4h 22m
1 stop
American Airlines Logo
5:51 am - 11:22 am
STL
-
ROC
4h 31m
1 stop
$315American Airlines
Thu, Apr 9 - Mon, Apr 13
American Airlines Logo
5:25 pm - 11:46 pm
ROC
-
STL
7h 21m
2 stops
American Airlines Logo
8:54 am - 4:32 pm
STL
-
ROC
6h 38m
1 stop
$320American Airlines
Mon, May 4 - Wed, May 6
American Airlines Logo
8:24 pm - 11:46 pm
ROC
-
STL
4h 22m
1 stop
American Airlines Logo
12:27 pm - 7:54 pm
STL
-
ROC
6h 27m
1 stop
$323American Airlines
Thu, Apr 9 - Mon, Apr 13
American Airlines Logo
12:10 pm - 7:30 pm
ROC
-
STL
8h 20m
2 stops
American Airlines Logo
1:29 pm - 9:47 pm
STL
-
ROC
7h 18m
2 stops
$325American Airlines
Sat, Apr 4 - Wed, Apr 8
American Airlines Logo
6:45 am - 10:54 am
ROC
-
STL
5h 09m
1 stop
American Airlines Logo
5:51 am - 11:22 am
STL
-
ROC
4h 31m
1 stop
$335American Airlines
Thu, Apr 9 - Mon, Apr 13
Delta Logo
6:17 pm - 11:59 pm
ROC
-
STL
6h 42m
1 stop
Delta Logo
6:00 am - 11:54 am
STL
-
ROC
4h 54m
1 stop
$337Delta
Tue, May 19 - Tue, May 26
American Airlines Logo
1:40 pm - 7:30 pm
ROC
-
STL
6h 50m
1 stop
American Airlines Logo
4:30 pm - 11:42 pm
STL
-
ROC
6h 12m
1 stop
$341American Airlines
Fri, May 1 - Mon, May 4
American Airlines Logo
8:24 pm - 11:46 pm
ROC
-
STL
4h 22m
1 stop
American Airlines Logo
5:51 am - 11:22 am
STL
-
ROC
4h 31m
1 stop
$342American Airlines
Fri, May 1 - Mon, May 4
American Airlines Logo
8:24 pm - 11:46 pm
ROC
-
STL
4h 22m
1 stop
American Airlines Logo
5:51 am - 11:22 am
STL
-
ROC
4h 31m
1 stop
$343American Airlines
Fri, May 1 - Mon, May 4

United Airlines flights from Rochester to St. Louis

Our best United Airlines deals on Rochester to St. Louis flight tickets
United Airlines
Apr 8
ROC6:20 amGreater Rochester Intl
7h 02m
1 stop
STL12:22 pmLambert-St Louis
Apr 12
STL6:15 amLambert-St Louis
5h 12m
1 stop
ROC12:27 pmGreater Rochester Intl
$345
United Airlines
May 26
ROC6:00 amGreater Rochester Intl
7h 11m
2 stops
STL12:11 pmLambert-St Louis
May 29
STL9:23 amLambert-St Louis
6h 22m
1 stop
ROC4:45 pmGreater Rochester Intl
$346
United Airlines
May 22
ROC6:15 amGreater Rochester Intl
6h 56m
1 stop
STL12:11 pmLambert-St Louis
May 27
STL6:00 amLambert-St Louis
7h 19m
2 stops
ROC2:19 pmGreater Rochester Intl
$350

American Airlines flights from Rochester to St. Louis

Our best American Airlines deals on Rochester to St. Louis flight tickets
American Airlines
Apr 6
ROC7:05 pmGreater Rochester Intl
6h 00m
1 stop
STL12:05 amLambert-St Louis
Apr 8
STL5:51 amLambert-St Louis
4h 31m
1 stop
ROC11:22 amGreater Rochester Intl
$309
American Airlines
Apr 9
ROC8:24 pmGreater Rochester Intl
4h 22m
1 stop
STL11:46 pmLambert-St Louis
Apr 13
STL5:51 amLambert-St Louis
4h 31m
1 stop
ROC11:22 amGreater Rochester Intl
$315
American Airlines
May 4
ROC5:25 pmGreater Rochester Intl
7h 21m
2 stops
STL11:46 pmLambert-St Louis
May 6
STL8:54 amLambert-St Louis
6h 38m
1 stop
ROC4:32 pmGreater Rochester Intl
$320

momondo Fare Finder

 
Customize your flight search to find flights from Rochester 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 March 12, 2026.
Use the filters below to find and compare flights from Rochester to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Mon 4/6

7:05 pm-12:05 am

1 stop6h 00m

Lambert-St Louis

Wed 4/8

5:51 am-11:22 am

1 stop4h 31m

$309
Quickest round-trip

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 4/9

8:24 pm-11:46 pm

1 stop4h 22m

Lambert-St Louis

Mon 4/13

5:51 am-11:22 am

1 stop4h 31m

$315

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Mon 5/4

5:25 pm-11:46 pm

2 stops7h 21m

Lambert-St Louis

Wed 5/6

8:54 am-4:32 pm

1 stop6h 38m

$320

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 4/9

8:24 pm-11:46 pm

1 stop4h 22m

Lambert-St Louis

Mon 4/13

12:27 pm-7:54 pm

1 stop6h 27m

$323

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Sat 4/4

12:10 pm-7:30 pm

2 stops8h 20m

Lambert-St Louis

Wed 4/8

1:29 pm-9:47 pm

2 stops7h 18m

$325

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 4/9

6:45 am-10:54 am

1 stop5h 09m

Lambert-St Louis

Mon 4/13

5:51 am-11:22 am

1 stop4h 31m

$335

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 5/19

6:17 pm-11:59 pm

1 stop6h 42m

Lambert-St Louis

Tue 5/26

6:00 am-11:54 am

1 stop4h 54m

$337

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Fri 5/1

1:40 pm-7:30 pm

1 stop6h 50m

Lambert-St Louis

Mon 5/4

4:30 pm-11:42 pm

1 stop6h 12m

$341

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Fri 5/1

8:24 pm-11:46 pm

1 stop4h 22m

Lambert-St Louis

Mon 5/4

5:51 am-11:22 am

1 stop4h 31m

$342

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Fri 5/1

8:24 pm-11:46 pm

1 stop4h 22m

Lambert-St Louis

Mon 5/4

5:51 am-11:22 am

1 stop4h 31m

$343

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 Rochester 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, September is the cheapest month to fly from Rochester to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $291. The month of December is another great option to travel to St. Louis, with average flight prices from Rochester averaging around $343.

How have Rochester to St. Louis flight prices changed over time?

As of March 2026, prices for Rochester to St. Louis flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Rochester to St. Louis

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

Cheap Rochester to St. Louis (ROC to STL) flight deals and tips

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

Fastest flight time

4h 15m

Direct flights

None
The fastest flight from Rochester to St. Louis takes 4h 15m
There are no direct flights from Rochester to St. Louis. There are no popular flight routes from Rochester to St. Louis.
Search flight deals

  • How far is Greater Rochester Intl to Lambert-St Louis by plane?

    The straight-line distance from Greater Rochester Intl to Lambert-St Louis is 726.3 mi. By plane, this route typically takes 4h 15m.

  • When did momondo last update prices for flights from Greater Rochester Intl Airport to Lambert-St Louis Airport?

    Prices for flights from Greater Rochester Intl Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Greater Rochester Intl Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Greater Rochester Intl 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 Greater Rochester Intl 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 Rochester to St. Louis?

Best airlines flying from Rochester to St. Louis

Compare and see reviews for airlines that fly from Rochester to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $208Free CancellationRating
7.4
9,418 reviews
Search United Airlines flights
SouthwestPriceFrom $228Free CancellationRating
8.0
4,319 reviews
Search Southwest flights
American AirlinesPriceFrom $236Free CancellationRating
7.1
11,435 reviews
Search American Airlines flights
DeltaPriceFrom $251Free CancellationRating
7.9
8,286 reviews
Search Delta 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
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Fenton
Alton
Wentzville
Farmington
Edwardsville
Festus
Clayton
Eureka
Litchfield
Glencoe
Shrewsbury

Why use momondo?

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

Finding the right flight to St. Louis from Rochester is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

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

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

Once you have performed a search for Rochester to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Rochester 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.

An easier way to manage your St. Louis trip

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