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St. Louis

$33+ Cheap flights from Clearwater, FL to St. Louis (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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
MCO — STL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Clearwater to Lambert-St Louis are usually found in January or July, booked 58 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Clearwater to St. Louis

Keep the following information in mind while searching for Clearwater to St. Louis flight deals. Data was last updated July 31, 2025.

Round-trip from

$137
(Southwest)

One-way from

$33
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$291
From Clearwater to Lambert-St Louis
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One-way flight from Clearwater to Lambert-St Louis
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Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Clearwater to St. Louis

Cheapest flights from Clearwater to St. Louis
Explore the most affordable flight options available from Clearwater to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/511:00 amTPA - STL
Nonstop2h 30mSouthwest
Mon 9/87:25 pmSTL - TPA
Nonstop2h 15mSouthwest
Deal found 7/31$137
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:00 amTPA - STL
1 stop8h 32mSpirit Airlines
Mon 8/252:30 pmSTL - TPA
1 stop7h 45mSpirit Airlines
Deal found 7/29$168
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:58 pmTPA - STL
1 stop4h 43mDelta
Mon 10/205:15 pmSTL - TPA
1 stop4h 10mDelta
Deal found 7/31$197
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/51:09 pmTPA - STL
1 stop8h 06mAmerican Airlines
Sun 9/75:18 amSTL - TPA
1 stop6h 01mAmerican Airlines
Deal found 7/30$212
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:15 amTPA - STL
2 stops9h 20mMultiple Airlines
Sun 9/2812:05 pmSTL - TPA
1 stop10h 24mMultiple Airlines
Deal found 7/29$240
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/231:40 pmTPA - STL
2 stops8h 52mUnited Airlines
Sat 9/2712:25 pmSTL - TPA
1 stop6h 18mUnited Airlines
Deal found 7/30$260

Cheapflights Fare Finder

 
Customize your flight search to find flights from Clearwater 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Clearwater to St. Louis that are best for you.

Fly from

Clearwater

Fly to

St. Louis

Route

Depart

Return

Price

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Fri 9/5

11:00 am-12:30 pm

Nonstop2h 30m

Lambert-St Louis

Mon 9/8

7:25 pm-10:40 pm

Nonstop2h 15m

$137

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Thu 8/21

6:00 am-1:32 pm

1 stop8h 32m

Lambert-St Louis

Mon 8/25

2:30 pm-11:15 pm

1 stop7h 45m

$168

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Mon 10/13

7:58 pm-11:41 pm

1 stop4h 43m

Lambert-St Louis

Mon 10/20

5:15 pm-10:25 pm

1 stop4h 10m

$197

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Fri 9/5

1:09 pm-8:15 pm

1 stop8h 06m

Lambert-St Louis

Sun 9/7

5:18 am-12:19 pm

1 stop6h 01m

$212

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Fri 9/26

8:15 am-4:35 pm

2 stops9h 20m

Lambert-St Louis

Sun 9/28

12:05 pm-11:29 pm

1 stop10h 24m

$240

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Tue 9/23

1:40 pm-9:32 pm

2 stops8h 52m

Lambert-St Louis

Sat 9/27

12:25 pm-7:43 pm

1 stop6h 18m

$260

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Sat 10/25

3:30 pm-4:53 pm

Nonstop2h 23m

$33

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Wed 10/29

6:35 pm-8:00 pm

Nonstop2h 25m

$69

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Sun 9/21

5:45 am-10:50 am

1 stop6h 05m

$71

TampaSt. Louis

TPA - STL

TPASTL

Tampa

Sat 11/15

5:20 pm-12:05 am

1 stop7h 45m

$93

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 13 results
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Best time to book a flight from Clearwater to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Clearwater 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 Clearwater to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Clearwater to St. Louis. Price data was last updated on July 25, 2025.

The best time to book flights from Clearwater to St. Louis is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Clearwater to St. Louis (average of $311). Flying from Clearwater 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 CL9 to STL?

Find hourly flight availability from Clearwater 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Clearwater to St. Louis as you normally would.

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

Use this chart to determine the cheapest time to fly round-trip from Clearwater to St. Louis. Price data was last updated on July 27, 2025.

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

Weekly flight availability from Clearwater to St. Louis

Explore weekly flight availability from Clearwater to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from CL9 to STL are scheduled on a Thursday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated July 31, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Clearwater to St. Louis to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,049 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Clearwater 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 airport do you fly into for flights to St. Louis from Clearwater?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Clearwater. Booking flights from Clearwater to Lambert-St Louis (STL) should be relatively easy as there is 1 daily inbound flight from Clearwater from 7 different airlines.

  • What are the cheapest airlines to fly from Clearwater to St. Louis one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $33. However, be on the lookout for offers from Southwest and Spirit Airlines, as they are both options that can get you from Clearwater to St. Louis for a low price.

  • What are the most reliable airlines from Clearwater to St. Louis?

    Before booking your flight to St. Louis from Clearwater, check out the most reliable airlines to get you to your destination on time: Spirit Airlines (100%), Frontier (79%), Southwest( 70%).

  • What are the cheapest flights from Clearwater to St. Louis?

    Looking at all options, your cheapest flight can be booked for $63. While the most popular route (Tampa - Lambert-St Louis) can be booked for $137 on average our data indicates $187 when flying from Clearwater to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Clearwater 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 Clearwater to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Clearwater to St. Louis (average of $311). Flying from Clearwater 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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Alternative routes for Clearwater to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Clearwater to St. Louis

Discover the top 7 airlines that operate flights from Clearwater to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$58Average$189FlexibilityNo cancel feeOn-time65%
FrontierCheapest$67Average$192FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$84Average$98FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$158Average$317FlexibilityNo cancel feeOn-time71%
DeltaCheapest$203Average$353FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$356FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$253Average$646FlexibilityNo cancel feeOn-time69%

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