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

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

What airlines fly to St. Louis?

Delta, American Airlines and Southwest 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 49% 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 Rochester Greater Rochester Intl Airport to Lambert-St Louis Airport?

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

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

As of August 2025, there are 4 operators available to choose from for flights from Rochester Greater Rochester Intl Airport to Lambert-St Louis Airport.

How old do you have to be to fly from Rochester 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 Rochester 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.

$105 Cheap Flights from Rochester to St. Louis (ROC-STL) in 2025

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Find the cheapest flights from Rochester to St. Louis (ROC-STL)

Round-trip

One-way

Last minute

Cheap round-trip flights

4:29 pm - 8:32 pmROC-STL

5h 03m1 stop

9:57 am - 5:15 pmSTL-ROC

6h 18m1 stop

$223American Airlines

Find Deal

Thu, Sep 4 - Wed, Sep 10

9:50 am - 4:15 pmROC-STL

7h 25m2 stops

2:11 pm - 10:16 pmSTL-ROC

7h 05m1 stop

$228American Airlines

Find Deal

Thu, Sep 4 - Wed, Sep 10

3:55 pm - 10:05 pmROC-STL

7h 10m2 stops

4:15 pm - 11:10 pmSTL-ROC

5h 55m1 stop

$243Southwest

Find Deal

Tue, Sep 16 - Fri, Sep 19

6:00 am - 11:10 amROC-STL

6h 10m1 stop

6:00 am - 11:22 amSTL-ROC

4h 22m1 stop

$252Delta

Find Deal

Thu, Sep 4 - Sun, Sep 7

4:40 pm - 10:35 pmROC-STL

6h 55m2 stops

5:30 am - 12:20 pmSTL-ROC

5h 50m1 stop

$257Southwest

Find Deal

Thu, Sep 4 - Sun, Sep 7

6:05 am - 2:19 pmROC-STL

9h 14m2 stops

3:20 pm - 9:13 pmSTL-ROC

4h 53m1 stop

$313United Airlines

Find Deal

Tue, Sep 9 - Fri, Sep 12

2:10 pm - 7:07 pmROC-STL

5h 57m1 stop

6:00 am - 11:22 amSTL-ROC

4h 22m1 stop

$337Delta

Find Deal

Tue, Sep 2 - Sun, Sep 7

6:40 am - 1:07 pmROC-STL

7h 27m1 stop

3:16 pm - 10:10 pmSTL-ROC

29h 54m1 stop

$346

Find Deal

Thu, Aug 28 - Mon, Sep 1

6:05 am - 2:19 pmROC-STL

9h 14m2 stops

5:30 pm - 9:41 amSTL-ROC

15h 11m2 stops

$385United Airlines

Find Deal

Tue, Sep 9 - Fri, Sep 12

1:47 pm - 12:00 pmROC-STL

23h 13m3 stops

10:35 am - 12:52 pmSTL-ROC

25h 17m2 stops

$407

Find Deal

Thu, Sep 4 - Sun, Sep 7

American Airlines flights from Rochester to St. Louis

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

American Airlines

Sep 4

ROC4:29 pmRochester Greater Rochester Intl

5h 03m

1 stop

STL8:32 pmLambert-St Louis

Sep 10

STL9:57 amLambert-St Louis

6h 18m

1 stop

ROC5:15 pmRochester Greater Rochester Intl

$223

Find similar

American Airlines

Sep 4

ROC9:50 amRochester Greater Rochester Intl

7h 25m

2 stops

STL4:15 pmLambert-St Louis

Sep 10

STL2:11 pmLambert-St Louis

7h 05m

1 stop

ROC10:16 pmRochester Greater Rochester Intl

$228

Find similar

American Airlines

Sep 9

ROC5:15 amRochester Greater Rochester Intl

6h 06m

1 stop

STL10:21 amLambert-St Louis

Sep 12

STL2:11 pmLambert-St Louis

7h 05m

1 stop

ROC10:16 pmRochester Greater Rochester Intl

$238

Find similar

Southwest flights from Rochester to St. Louis

Our best Southwest deals on Rochester to St. Louis flight tickets

Southwest

Sep 16

ROC3:55 pmRochester Greater Rochester Intl

7h 10m

2 stops

STL10:05 pmLambert-St Louis

Sep 19

STL4:15 pmLambert-St Louis

5h 55m

1 stop

ROC11:10 pmRochester Greater Rochester Intl

$243

Find similar

Southwest

Sep 4

ROC4:40 pmRochester Greater Rochester Intl

6h 55m

2 stops

STL10:35 pmLambert-St Louis

Sep 7

STL5:30 amLambert-St Louis

5h 50m

1 stop

ROC12:20 pmRochester Greater Rochester Intl

$257

Find similar

Southwest

Sep 12

ROC6:05 amRochester Greater Rochester Intl

6h 25m

1 stop

STL11:30 amLambert-St Louis

Sep 19

STL4:15 pmLambert-St Louis

5h 55m

1 stop

ROC11:10 pmRochester Greater Rochester Intl

$267

Find similar

Fly from

Fly to

Route

Depart

Return

Price

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 9/4

4:29 pm-8:32 pm

1 stop5h 03m

Lambert-St Louis

Wed 9/10

9:57 am-5:15 pm

1 stop6h 18m

$223

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 9/4

9:50 am-4:15 pm

2 stops7h 25m

Lambert-St Louis

Wed 9/10

2:11 pm-10:16 pm

1 stop7h 05m

$228

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Tue 9/16

3:55 pm-10:05 pm

2 stops7h 10m

Lambert-St Louis

Fri 9/19

4:15 pm-11:10 pm

1 stop5h 55m

$243

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 9/4

6:00 am-11:10 am

1 stop6h 10m

Lambert-St Louis

Sun 9/7

6:00 am-11:22 am

1 stop4h 22m

$252

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 9/4

4:40 pm-10:35 pm

2 stops6h 55m

Lambert-St Louis

Sun 9/7

5:30 am-12:20 pm

1 stop5h 50m

$257

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Tue 9/9

6:05 am-2:19 pm

2 stops9h 14m

Lambert-St Louis

Fri 9/12

3:20 pm-9:13 pm

1 stop4h 53m

$313

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Tue 9/2

2:10 pm-7:07 pm

1 stop5h 57m

Lambert-St Louis

Sun 9/7

6:00 am-11:22 am

1 stop4h 22m

$337

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 8/28

6:40 am-1:07 pm

1 stop7h 27m

Lambert-St Louis

Mon 9/1

3:16 pm-10:10 pm

1 stop29h 54m

$346

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Tue 9/9

6:05 am-2:19 pm

2 stops9h 14m

Lambert-St Louis

Fri 9/12

5:30 pm-9:41 am

2 stops15h 11m

$385

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 9/4

1:47 pm-12:00 pm

3 stops23h 13m

Lambert-St Louis

Sun 9/7

10:35 am-12:52 pm

2 stops25h 17m

$407

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 $390 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 $299 on momondo.

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

As of August 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

Best Price Found	$105
Fastest flight time	4h 21m
Direct flights	None
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Rochester in the past 72 hours is $105. The best round-trip flight deal from Rochester to St. Louis found on momondo in the last 72 hours is $223.

The fastest flight from Rochester to St. Louis takes 4h 21m

There are no direct flights from Rochester to St. Louis. Popular non-direct route for this connection is Rochester Greater Rochester Intl Airport - Lambert-St Louis Airport.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

How far is Rochester Greater Rochester Intl to Lambert-St Louis by plane?
The straight-line distance from Rochester Greater Rochester Intl to Lambert-St Louis is 726.3 mi. By plane, this route typically takes 4h 21m.
When did momondo last update prices for flights from Rochester Greater Rochester Intl Airport to Lambert-St Louis Airport?
Prices for flights from Rochester Greater Rochester Intl Airport to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Rochester Greater Rochester Intl Airport to Lambert-St Louis Airport?
As of August 2025, there are 4 operators available to choose from for flights from Rochester Greater Rochester Intl Airport to Lambert-St Louis Airport.
How old do you have to be to fly from Rochester 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 Rochester 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 42% of the total bookings. Other popular airlines include Delta with 41%, Southwest with 9%, and United Airlines with 8%.

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 $251	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $286	Free Cancellation	Rating 7.4 8,916 reviews	Search United Airlines flights
Delta	PriceFrom $286	Free Cancellation	Rating 8.0 7,980 reviews	Search Delta flights
Southwest	PriceFrom $341	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights

St. Charles

Chesterfield

Fairview Heights

Hermann

Maryland Heights

Florissant

O'Fallon

Fenton

Wentzville

Collinsville

Alton

St. Peters

Farmington

Festus

Glencoe

Eureka

Clayton

Edwardsville

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 $105

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 9/10. 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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Big names and deals

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Filter for what you want

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Find the cheapest flights from Rochester to St. Louis (ROC-STL)

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American Airlines flights from Rochester to St. Louis

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

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Our best Southwest 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 August 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 Rochester Greater Rochester Intl to Lambert-St Louis?

American Airlines, Southwest, and United Airlines are the most popular carriers operating from Rochester 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

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

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

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

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

How old do you have to be to fly from Rochester 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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