What are the cheapest airlines flying from Rochester to St. Louis round-trip?

Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $257. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $267 and $289, respectively. Users have found that Delta is 35% cheaper than the other options available to this destination.

What is the cheapest day to fly from Rochester to St. Louis?

Travelers seeking maximum savings on their Rochester to St. Louis flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Rochester to St. Louis?

American Airlines, Delta and United Airlines are the most popular airlines when flying from Rochester to St. Louis.

What is the cheapest day to fly round-trip from Rochester to St. Louis?

Friday is generally a great day to depart. Flying on this day could help you save up to 28%.

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

Find a great deal and save up to 103% by booking at least 30 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Rochester to St. Louis within the next two weeks, with the cheapest ticket starting at $366.

What is the cheapest month to fly from Rochester to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, March can be a great choice for travel to St. Louis. Flights to St. Louis from Rochester in March are about $399 on average during March, but can be found for as low as $286.

Can I find deals for flights from Rochester to St. Louis that include hotel bookings?

Yes. In addition to deals on Rochester to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Rochester to St. Louis?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rochester to St. Louis.

Can I find deals for business class flights from Rochester to St. Louis?

Yes. Cheapflights offers flight deals from Rochester to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$161+ Flights from Rochester to St. Louis

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Cheapflights Tip: The best prices from Rochester Greater Rochester Intl to Lambert-St Louis are usually found in March or July, booked 89 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Rochester to St. Louis

Round-trip from	$257 (Delta)
One-way from	$161 (American Airlines)
Popular in	November
Cheapest in	March
Average price	$446

From Rochester Greater Rochester Intl to Lambert-St Louis

Search Deals

One-way flight from Rochester Greater Rochester Intl to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($42 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Rochester to St. Louis

Cheapest flights from Rochester to St. Louis
Explore the most affordable flight options available from Rochester to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Wed 10/812:15 pmROC - STL

1 stop4h 43mDelta

Wed 10/156:00 amSTL - ROC

1 stop5h 28mDelta

Deal found 6/11

$257

Wed 10/296:00 amROC - STL

1 stop5h 52mUnited Airlines

Sat 11/17:00 amSTL - ROC

1 stop4h 47mUnited Airlines

Deal found 6/9

$267

Wed 10/296:18 amROC - STL

1 stop6h 53mAmerican Airlines

Sun 11/25:43 amSTL - ROC

1 stop7h 12mAmerican Airlines

Deal found 6/9

$289

Thu 6/264:14 pmROC - STL

1 stop19h 19mSpirit Airlines

Mon 6/3011:28 amSTL - ROC

1 stop26h 41mSpirit Airlines

Deal found 6/11

$290

Thu 7/315:50 amROC - STL

2 stops8h 15mSouthwest

Tue 8/56:25 amSTL - ROC

2 stops7h 45mSouthwest

Deal found 6/10

$322

Fri 9/56:32 pmROC - STL

3 stops38h 17mMultiple Airlines

Sun 9/75:15 pmSTL - ROC

3 stops23h 22mMultiple Airlines

Deal found 6/11

$447

Best flights from Rochester to St. Louis
Discover carefully curated flight deals from Rochester to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Wed 10/810:20 amROC - STL

1 stop3h 55mDelta

Tue 10/146:00 amSTL - ROC

1 stop5h 28mDelta

Deal found 6/11

$257

Wed 10/296:00 amROC - STL

1 stop5h 52mUnited Airlines

Sat 11/17:00 amSTL - ROC

1 stop4h 47mUnited Airlines

Deal found 6/9

$267

Wed 10/296:18 amROC - STL

1 stop6h 53mAmerican Airlines

Sun 11/25:43 amSTL - ROC

1 stop7h 12mAmerican Airlines

Deal found 6/9

$289

Thu 6/264:14 pmROC - STL

1 stop19h 19mSpirit Airlines

Mon 6/3011:28 amSTL - ROC

1 stop26h 41mSpirit Airlines

Deal found 6/11

$290

Thu 7/315:50 amROC - STL

2 stops8h 15mSouthwest

Tue 8/56:25 amSTL - ROC

2 stops7h 45mSouthwest

Deal found 6/10

$322

Fri 9/56:32 pmROC - STL

3 stops38h 17mMultiple Airlines

Sun 9/75:15 pmSTL - ROC

3 stops23h 22mMultiple Airlines

Deal found 6/11

$447

Last-minute flights from Rochester to St. Louis
Discover last-minute flight deals from Rochester to St. Louis. Data last updated June 12, 2025 and is based on user searches.

Tue 6/175:46 pmROC - STL

1 stop5h 59mUnited Airlines

Tue 7/16:00 amSTL - ROC

1 stop5h 54mUnited Airlines

Deal found 6/11

$454

Wed 6/186:17 pmROC - STL

1 stop6h 19mDelta

Mon 6/304:10 pmSTL - ROC

1 stop7h 44mDelta

Deal found 6/11

$440

Fri 6/2010:20 amROC - STL

2 stops6h 55mAmerican Airlines

Sat 6/284:17 pmSTL - ROC

1 stop4h 47mAmerican Airlines

Deal found 6/11

$470

Sun 6/224:45 pmROC - STL

1 stop8h 40mSouthwest

Wed 6/252:50 pmSTL - ROC

1 stop7h 10mSouthwest

Deal found 6/11

$523

Sun 6/224:14 pmROC - STL

1 stop19h 19mMultiple Airlines

Wed 6/2512:15 pmSTL - ROC

3 stops25h 54mMultiple Airlines

Deal found 6/11

$536

Mon 6/236:37 pmROC - STL

3 stops25h 04mMultiple Airlines

Thu 6/266:36 pmSTL - ROC

2 stops21h 56mMultiple Airlines

Deal found 6/10

$460

Thu 6/264:14 pmROC - STL

1 stop19h 19mSpirit Airlines

Mon 6/3011:28 amSTL - ROC

1 stop26h 41mSpirit Airlines

Deal found 6/11

$290

Thu 7/36:24 amROC - STL

1 stop5h 16mUnited Airlines

Sun 7/69:09 amSTL - ROC

1 stop6h 46mUnited Airlines

Deal found 6/10

$367

Wed 7/3012:00 pmROC - STL

1 stop7h 08mDelta

Tue 8/53:16 pmSTL - ROC

1 stop7h 07mDelta

Deal found 6/10

$287

Thu 7/315:50 amROC - STL

2 stops8h 15mSouthwest

Tue 8/56:25 amSTL - ROC

2 stops7h 45mSouthwest

Deal found 6/10

$322

One-way flights from Rochester to St. Louis
Search for one-way flight options from Rochester to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Sun 9/75:25 pmROC - STL

1 stop7h 28mAmerican Airlines

Deal found 6/11

$161

Sun 9/71:05 pmROC - STL

2 stops8h 15mSouthwest

Deal found 6/11

$199

Sun 9/76:32 pmROC - STL

3 stops25h 09mMultiple Airlines

Deal found 6/11

$206

Cheapflights Fare Finder

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

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Wed 10/8

12:15 pm-3:58 pm

1 stop4h 43m

Lambert-St Louis

Wed 10/15

6:00 am-12:28 pm

1 stop5h 28m

$257

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Wed 10/29

6:00 am-10:52 am

1 stop5h 52m

Lambert-St Louis

Sat 11/1

7:00 am-12:47 pm

1 stop4h 47m

$267

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Wed 10/29

6:18 am-12:11 pm

1 stop6h 53m

Lambert-St Louis

Sun 11/2

5:43 am-1:55 pm

1 stop7h 12m

$289

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 6/26

4:14 pm-10:33 am

1 stop19h 19m

Lambert-St Louis

Mon 6/30

11:28 am-3:09 pm

1 stop26h 41m

$290

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Thu 7/31

5:50 am-1:05 pm

2 stops8h 15m

Lambert-St Louis

Tue 8/5

6:25 am-3:10 pm

2 stops7h 45m

$322

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Fri 9/5

6:32 pm-7:49 am

3 stops38h 17m

Lambert-St Louis

Sun 9/7

5:15 pm-5:37 pm

3 stops23h 22m

$447

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Sun 9/7

5:25 pm-11:53 pm

1 stop7h 28m

$161

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Sun 9/7

1:05 pm-8:20 pm

2 stops8h 15m

$199

RochesterSt. Louis

ROC - STL

ROCSTL

Rochester Greater Rochester Intl

Sun 9/7

6:32 pm-6:41 pm

3 stops25h 09m

$206

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from Rochester to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Rochester with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Rochester to St. Louis

How far ahead should I book a flight from Rochester to St. Louis?

The price you pay for your flight from Rochester to St. Louis may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Rochester to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Rochester to St. Louis (average of $311). Flying from Rochester to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ROC to STL?

One of the essential ways to save on airfare from Rochester to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 20% on airfare.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

To help decide which airline to fly from Rochester to St. Louis, see what other customers have to say about Southwest, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,287 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,946 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,790 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Spirit Airlines

6.3

Okay

8,052 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What are the cheapest airlines flying from Rochester to St. Louis round-trip?
Flying on Delta is currently your cheapest option to St. Louis, with prices starting at $257. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $267 and $289, respectively. Users have found that Delta is 35% cheaper than the other options available to this destination.
Can I find deals for flights from Rochester to St. Louis that include hotel bookings?
Yes. In addition to deals on Rochester to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rochester to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rochester to St. Louis.
Can I find deals for business class flights from Rochester to St. Louis?
Yes. Cheapflights offers flight deals from Rochester to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Rochester to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Rochester to St. Louis (average of $311). Flying from Rochester to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Collinsville

Eureka

St. Peters

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Farmington

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Top 4 airlines flying from Rochester to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$271	Average$386	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$286	Average$376	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$286	Average$411	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$356	Average$407	FlexibilityNo cancel fee	On-time63%

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$161+ Cheap flights from Rochester to St. Louis (ROC - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rochester to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Rochester Greater Rochester Intl to Lambert-St Louis are usually found in March or July, booked 89 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Rochester to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Rochester to St. Louis

Cheapest flights from Rochester to St. LouisExplore the most affordable flight options available from Rochester to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Rochester to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rochester to St. Louis that are best for you.

Best time to book a flight from Rochester to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Rochester with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Rochester to St. Louis

How far ahead should I book a flight from Rochester to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Rochester to St. Louis. Price data was last updated on June 9, 2025.

What is the cheapest month to book a flight from Rochester to St. Louis?

What is the cheapest time of day to fly from ROC to STL?

Find hourly flight availability from Rochester to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

Reviews of airlines servicing St. Louis

Related info for your journey

Find useful and relevant information for your journey from Rochester to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Rochester to St. Louis round-trip?

Can I find deals for flights from Rochester to St. Louis that include hotel bookings?

How can I find direct flights from Rochester to St. Louis?

Can I find deals for business class flights from Rochester to St. Louis?

What is the cheapest month to book a flight from Rochester to St. Louis?

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Alternative routes for Rochester to St. Louis

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Top 4 airlines flying from Rochester to St. Louis

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Cheapest flights from Rochester to St. Louis
Explore the most affordable flight options available from Rochester to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.