What is the cheapest airline that flies from Greater Rochester Intl to Lambert-St Louis?

United Airlines and American Airlines are the most popular carriers operating from Greater Rochester Intl to Lambert-St Louis

What airlines fly to St. Louis?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to St. Louis from Rochester according to our data. Delta is the first choice among our users, with 47% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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?

As of November 2025, there are 4 operators available to choose from 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.

$149 Cheap Flights from Rochester to St. Louis in 2025/26

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6:00 am - 12:33 pmROC-STL

7h 33m1 stop

7:10 am - 1:13 pmSTL-ROC

5h 03m1 stop

$271Delta

Find Deal

Tue, Jan 13 - Wed, Jan 14

6:56 pm - 8:59 amROC-STL

15h 03m1 stop

9:54 am - 5:51 pmSTL-ROC

6h 57m1 stop

$283Multiple Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

12:27 pm - 4:06 pmROC-STL

4h 39m1 stop

5:55 pm - 11:06 pmSTL-ROC

4h 11m1 stop

$297Delta

Find Deal

Tue, Dec 16 - Wed, Dec 24

6:56 pm - 10:14 amROC-STL

40h 18m2 stops

9:54 am - 5:51 pmSTL-ROC

6h 57m1 stop

$301Multiple Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

6:10 am - 2:25 pmROC-STL

9h 15m2 stops

9:55 am - 4:20 pmSTL-ROC

5h 25m1 stop

$302United Airlines

Find Deal

Tue, Dec 16 - Tue, Dec 30

10:40 am - 6:43 pmROC-STL

9h 03m2 stops

9:54 am - 5:45 pmSTL-ROC

6h 51m2 stops

$307American Airlines

Find Deal

Tue, Dec 16 - Tue, Jan 20

5:21 am - 7:12 pmROC-STL

14h 51m2 stops

6:00 am - 1:13 pmSTL-ROC

6h 13m1 stop

$339Delta

Find Deal

Tue, Jan 13 - Wed, Jan 14

1:37 pm - 5:03 pmROC-STL

4h 26m1 stop

3:13 pm - 8:34 pmSTL-ROC

4h 21m1 stop

$342United Airlines

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Wed, Dec 10 - Sun, Dec 14

11:17 am - 5:23 pmROC-STL

7h 06m1 stop

6:00 am - 5:45 pmSTL-ROC

10h 45m2 stops

$346American Airlines

Find Deal

Tue, Jan 13 - Wed, Jan 14

6:10 am - 2:25 pmROC-STL

9h 15m2 stops

6:30 am - 2:17 pmSTL-ROC

6h 47m2 stops

$352United Airlines

Find Deal

Wed, Dec 10 - Sun, Dec 14

United Airlines flights from Rochester to St. Louis

Our best United Airlines deals on Rochester to St. Louis flight tickets

United Airlines

Dec 16

ROC6:10 amGreater Rochester Intl

9h 15m

2 stops

STL2:25 pmLambert-St Louis

Dec 24

STL8:05 amLambert-St Louis

7h 15m

1 stop

ROC4:20 pmGreater Rochester Intl

$302

Find similar

United Airlines

Dec 10

ROC1:37 pmGreater Rochester Intl

4h 26m

1 stop

STL5:03 pmLambert-St Louis

Dec 14

STL3:13 pmLambert-St Louis

4h 21m

1 stop

ROC8:34 pmGreater Rochester Intl

$342

Find similar

United Airlines

Dec 10

ROC6:10 amGreater Rochester Intl

9h 15m

2 stops

STL2:25 pmLambert-St Louis

Dec 14

STL6:30 amLambert-St Louis

6h 47m

2 stops

ROC2:17 pmGreater Rochester Intl

$352

Find similar

American Airlines flights from Rochester to St. Louis

Our best American Airlines deals on Rochester to St. Louis flight tickets

American Airlines

Dec 16

ROC10:40 amGreater Rochester Intl

9h 03m

2 stops

STL6:43 pmLambert-St Louis

Jan 20

STL9:54 amLambert-St Louis

6h 51m

2 stops

ROC5:45 pmGreater Rochester Intl

$307

Find similar

American Airlines

Jan 13

ROC11:17 amGreater Rochester Intl

7h 06m

1 stop

STL5:23 pmLambert-St Louis

Jan 14

STL6:00 amLambert-St Louis

10h 45m

2 stops

ROC5:45 pmGreater Rochester Intl

$346

Find similar

American Airlines

May 1

ROC6:50 pmGreater Rochester Intl

5h 34m

1 stop

STL11:24 pmLambert-St Louis

May 9

STL10:48 amLambert-St Louis

5h 06m

1 stop

ROC4:54 pmGreater Rochester Intl

$367

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Fly from

Fly to

Route

Depart

Return

Price

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 1/13

6:00 am-12:33 pm

1 stop7h 33m

Lambert-St Louis

Wed 1/14

7:10 am-1:13 pm

1 stop5h 03m

$271

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 12/4

6:56 pm-8:59 am

1 stop15h 03m

Lambert-St Louis

Mon 12/8

9:54 am-5:51 pm

1 stop6h 57m

$283

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 12/16

12:27 pm-4:06 pm

1 stop4h 39m

Lambert-St Louis

Wed 12/24

5:55 pm-11:06 pm

1 stop4h 11m

$297

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Thu 12/4

6:56 pm-10:14 am

2 stops40h 18m

Lambert-St Louis

Mon 12/8

9:54 am-5:51 pm

1 stop6h 57m

$301

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 12/16

6:10 am-2:25 pm

2 stops9h 15m

Lambert-St Louis

Tue 12/30

9:55 am-4:20 pm

1 stop5h 25m

$302

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 12/16

10:40 am-6:43 pm

2 stops9h 03m

Lambert-St Louis

Tue 1/20

9:54 am-5:45 pm

2 stops6h 51m

$307

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 1/13

5:21 am-7:12 pm

2 stops14h 51m

Lambert-St Louis

Wed 1/14

6:00 am-1:13 pm

1 stop6h 13m

$339

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 12/10

1:37 pm-5:03 pm

1 stop4h 26m

Lambert-St Louis

Sun 12/14

3:13 pm-8:34 pm

1 stop4h 21m

$342

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Tue 1/13

11:17 am-5:23 pm

1 stop7h 06m

Lambert-St Louis

Wed 1/14

6:00 am-5:45 pm

2 stops10h 45m

$346

RochesterSt. Louis

ROC - STL

ROCSTL

Greater Rochester Intl

Wed 12/10

6:10 am-2:25 pm

2 stops9h 15m

Lambert-St Louis

Sun 12/14

6:30 am-2:17 pm

2 stops6h 47m

$352

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Showing 1-10 of 17 resultsSorted by cheapest first

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

Prices

Airlines

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 March is another great option to travel to St. Louis, with average flight prices from Rochester averaging around $346.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $398. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $513. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Rochester in the morning is the least expensive time of day to depart. momondo users have found prices as low as $407 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $506 per ticket.

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Rochester when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $386 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Rochester for as low as $309 on momondo.

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

As of November 2025, prices for Rochester to St. Louis flights are approximately 6% 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

Direct flights	None

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 03m.
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?
As of November 2025, there are 4 operators available to choose from 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?
Based on momondo bookings for flights between Rochester and St. Louis, the leading airline is American Airlines, making up 47% of the total bookings. Other popular airlines include Delta with 37%, Southwest with 10%, and United Airlines with 7%.

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
American Airlines	PriceFrom $236	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
Southwest	PriceFrom $256	Free Cancellation	Rating 8.0 4,251 reviews	Search Southwest flights
Delta	PriceFrom $286	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
United Airlines	PriceFrom $291	Free Cancellation	Rating 7.4 9,028 reviews	Search United Airlines flights

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Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Wentzville

Fenton

Collinsville

St. Peters

Alton

Farmington

Festus

Glencoe

Edwardsville

Clayton

Eureka

Litchfield

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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Cheap flights from Rochester to St. Louis from $149

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 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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United Airlines flights from Rochester to St. Louis

Our best United Airlines deals on Rochester to St. Louis flight tickets

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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?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

How far in advance should I book a flight to St. Louis?

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

As of November 2025, prices for Rochester to St. Louis flights are approximately 6% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Greater Rochester Intl to Lambert-St Louis?

United Airlines and American Airlines are the most popular carriers operating from Greater Rochester Intl to Lambert-St Louis

What airlines fly to St. Louis?

When to book flights from Rochester to St. Louis

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

Direct flights

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

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

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?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

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

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

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