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Cheap flights from Rochester to St. Louis from $114

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 6/6. 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.
Delta Logo
1:03 pm - 5:46 pm
ROC
-
STL
5h 43m
1 stop
Delta Logo
6:04 pm - 10:50 pm
STL
-
ROC
3h 46m
1 stop
$317Delta
Tue, Jun 2 - Wed, Jun 3
Southwest Logo
6:05 am - 10:05 am
ROC
-
STL
5h 00m
1 stop
Southwest Logo
7:15 am - 5:30 pm
STL
-
ROC
9h 15m
2 stops
$322Southwest
Wed, Sep 23 - Wed, Sep 30
Delta Logo
6:22 pm - 11:59 pm
ROC
-
STL
6h 37m
1 stop
Delta Logo
4:25 pm - 12:33 am
STL
-
ROC
7h 08m
1 stop
$326Delta
Sat, May 30 - Wed, Jun 3
Southwest Logo
6:05 am - 12:10 pm
ROC
-
STL
7h 05m
2 stops
Southwest Logo
8:35 am - 5:30 pm
STL
-
ROC
7h 55m
2 stops
$327Southwest
Wed, Sep 23 - Wed, Sep 30
Southwest Logo
4:05 pm - 9:05 pm
ROC
-
STL
6h 00m
1 stop
Southwest Logo
12:40 pm - 9:25 pm
STL
-
ROC
7h 45m
1 stop
$331Southwest
Wed, Jun 3 - Thu, Jun 4
Delta Logo
6:22 pm - 11:59 pm
ROC
-
STL
6h 37m
1 stop
Delta Logo
6:45 am - 11:59 am
STL
-
ROC
4h 14m
1 stop
$335Delta
Sat, May 30 - Mon, Jun 1
American Airlines Logo
12:00 pm - 7:21 pm
ROC
-
STL
8h 21m
1 stop
American Airlines Logo
6:15 am - 1:53 pm
STL
-
ROC
6h 38m
2 stops
$341American Airlines
Wed, Jun 3 - Thu, Jun 4
United Airlines Logo
5:47 pm - 9:22 pm
ROC
-
STL
4h 35m
1 stop
United Airlines Logo
11:25 am - 4:43 pm
STL
-
ROC
4h 18m
1 stop
$352United Airlines
Wed, Aug 26 - Mon, Aug 31
American Airlines Logo
6:46 pm - 11:44 pm
ROC
-
STL
5h 58m
1 stop
American Airlines Logo
6:00 am - 1:53 pm
STL
-
ROC
6h 53m
2 stops
$357American Airlines
Wed, Jun 10 - Mon, Jun 15
American Airlines Logo
12:00 pm - 7:21 pm
ROC
-
STL
8h 21m
1 stop
American Airlines Logo
5:40 pm - 11:52 pm
STL
-
ROC
5h 12m
1 stop
$361American Airlines
Fri, May 29 - Mon, Jun 1

Delta flights from Rochester to St. Louis

Our best Delta deals on Rochester to St. Louis flight tickets
Delta
Jun 2
ROC1:03 pmGreater Rochester Intl
5h 43m
1 stop
STL5:46 pmLambert-St Louis
Jun 3
STL6:04 pmLambert-St Louis
3h 46m
1 stop
ROC10:50 pmGreater Rochester Intl
$317
Delta
May 30
ROC6:22 pmGreater Rochester Intl
6h 37m
1 stop
STL11:59 pmLambert-St Louis
Jun 3
STL4:25 pmLambert-St Louis
7h 08m
1 stop
ROC12:33 amGreater Rochester Intl
$326
Delta
May 30
ROC6:22 pmGreater Rochester Intl
6h 37m
1 stop
STL11:59 pmLambert-St Louis
Jun 1
STL6:45 amLambert-St Louis
4h 14m
1 stop
ROC11:59 amGreater Rochester Intl
$335

American Airlines flights from Rochester to St. Louis

Our best American Airlines deals on Rochester to St. Louis flight tickets
American Airlines
Jun 3
ROC12:00 pmGreater Rochester Intl
8h 21m
1 stop
STL7:21 pmLambert-St Louis
Jun 4
STL6:15 amLambert-St Louis
6h 38m
2 stops
ROC1:53 pmGreater Rochester Intl
$341
American Airlines
Jun 10
ROC6:46 pmGreater Rochester Intl
5h 58m
1 stop
STL11:44 pmLambert-St Louis
Jun 15
STL6:00 amLambert-St Louis
6h 53m
2 stops
ROC1:53 pmGreater Rochester Intl
$357
American Airlines
May 29
ROC12:00 pmGreater Rochester Intl
8h 21m
1 stop
STL7:21 pmLambert-St Louis
Jun 1
STL5:40 pmLambert-St Louis
5h 12m
1 stop
ROC11:52 pmGreater Rochester Intl
$361

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 May 3, 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

Tue 6/2

1:03 pm-5:46 pm

1 stop5h 43m

Lambert-St Louis

Wed 6/3

6:04 pm-10:50 pm

1 stop3h 46m

$317

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 9/23

6:05 am-10:05 am

1 stop5h 00m

Lambert-St Louis

Wed 9/30

7:15 am-5:30 pm

2 stops9h 15m

$322

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Sat 5/30

6:22 pm-11:59 pm

1 stop6h 37m

Lambert-St Louis

Wed 6/3

4:25 pm-12:33 am

1 stop7h 08m

$326

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 9/23

6:05 am-12:10 pm

2 stops7h 05m

Lambert-St Louis

Wed 9/30

8:35 am-5:30 pm

2 stops7h 55m

$327

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 6/3

4:05 pm-9:05 pm

1 stop6h 00m

Lambert-St Louis

Thu 6/4

12:40 pm-9:25 pm

1 stop7h 45m

$331

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Sat 5/30

6:22 pm-11:59 pm

1 stop6h 37m

Lambert-St Louis

Mon 6/1

6:45 am-11:59 am

1 stop4h 14m

$335

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 6/3

12:00 pm-7:21 pm

1 stop8h 21m

Lambert-St Louis

Thu 6/4

6:15 am-1:53 pm

2 stops6h 38m

$341
Quickest round-trip

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 8/26

5:47 pm-9:22 pm

1 stop4h 35m

Lambert-St Louis

Mon 8/31

11:25 am-4:43 pm

1 stop4h 18m

$352

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 6/10

6:46 pm-11:44 pm

1 stop5h 58m

Lambert-St Louis

Mon 6/15

6:00 am-1:53 pm

2 stops6h 53m

$357

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Fri 5/29

12:00 pm-7:21 pm

1 stop8h 21m

Lambert-St Louis

Mon 6/1

5:40 pm-11:52 pm

1 stop5h 12m

$361

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 typical price of a round-trip flight between Rochester and St. Louis?

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 May 2026, prices for Rochester to St. Louis flights are approximately 37% more expensive 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 05m

Direct flights

None
The fastest flight from Rochester to St. Louis takes 4h 05m
There are no direct flights from Rochester to St. Louis. There are no popular flight routes from Rochester to St. Louis.
Search flight deals

Frequently asked questions about flying from Rochester to St. Louis

  • 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 05m.

  • 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
9,681 reviews
Search United Airlines flights
SouthwestPriceFrom $228Free CancellationRating
8.0
4,312 reviews
Search Southwest flights
American AirlinesPriceFrom $236Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
DeltaPriceFrom $251Free CancellationRating
7.9
8,460 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
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 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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