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$71+ Cheap flights from Connecticut 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — STL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Connecticut to St. Louis

Keep the following information in mind while searching for Connecticut to St. Louis flight deals. Data was last updated September 16, 2025.

Round-trip from

$176
(Booking.com)

One-way from

$71
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$361
From Connecticut to Lambert-St Louis
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One-way flight from Connecticut to Lambert-St Louis
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Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Connecticut to St. Louis

Cheapest flights from Connecticut to St. Louis
Explore the most affordable flight options available from Connecticut to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:30 amBDL - STL
1 stop5h 34mFrontier
Sun 9/281:52 pmSTL - BDL
1 stop29h 05mFrontier
Deal found 9/16$176
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:36 pmBDL - STL
1 stop27h 02mFrontier
Sun 11/22:12 pmSTL - BDL
1 stop21h 29mFrontier
Deal found 9/16$192
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:30 amBDL - STL
1 stop5h 34mFrontier
Wed 10/17:55 pmSTL - BDL
2 stops12h 40mFrontier
Deal found 9/16$203
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:59 amJFK - STL
1 stop11h 11mFrontier
Tue 10/147:52 pmSTL - JFK
1 stop15h 09mFrontier
Deal found 9/15$208
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2710:56 pmLGA - STL
1 stop11h 10mFrontier
Tue 9/307:55 pmSTL - LGA
1 stop25h 16mFrontier
Deal found 9/15$209
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:59 amJFK - STL
1 stop31h 54mFrontier
Mon 10/64:00 pmSTL - JFK
1 stop8h 08mFrontier
Deal found 9/13$209
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 11/199:00 amLGA - STL
Nonstop3h 03mAmerican Airlines
Tue 12/22:17 pmSTL - LGA
1 stop8h 24mAmerican Airlines
Deal found 9/15$210
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:58 pmLGA - STL
1 stop21h 11mMultiple Airlines
Tue 11/47:45 pmSTL - LGA
2 stops14h 44mMultiple Airlines
Deal found 9/15$211
This Mytrip deal was found by Cheapflights users on 9/15. 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 10/307:30 amJFK - STL
1 stop6h 47mFrontier
Thu 11/67:45 pmSTL - JFK
1 stop18h 15mFrontier
Deal found 9/15$211
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:30 amLGA - STL
1 stop9h 34mFrontier
Tue 10/77:52 pmSTL - LGA
2 stops13h 38mFrontier
Deal found 9/14$212
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/16:59 amJFK - STL
1 stop31h 54mFrontier
Sun 10/51:57 pmSTL - JFK
1 stop19h 29mFrontier
Deal found 9/13$212
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 11/612:44 pmLGA - STL
Nonstop2h 52mAmerican Airlines
Sat 11/86:00 amSTL - LGA
1 stop9h 28mAmerican Airlines
Deal found 9/15$215

Cheapflights Fare Finder

 
Customize your flight search to find flights from Connecticut 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 September 16, 2025.
Use the filters below to find and compare flights from Connecticut to St. Louis that are best for you.

Fly from

Connecticut

Fly to

St. Louis

Route

Depart

Return

Price

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Fri 10/31

1:36 pm-3:38 pm

1 stop27h 02m

Lambert-St Louis

Sun 11/2

2:12 pm-12:41 pm

1 stop21h 29m

$192

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 11/20

6:30 pm-8:20 pm

Nonstop2h 50m

Lambert-St Louis

Tue 12/2

7:55 pm-11:10 pm

Nonstop2h 15m

$219

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 11/13

2:05 pm-8:15 pm

1 stop7h 10m

Lambert-St Louis

Sat 11/15

1:45 pm-10:20 pm

2 stops7h 35m

$222

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 11/6

6:30 am-8:13 am

Nonstop2h 43m

Lambert-St Louis

Sat 11/8

9:31 am-12:57 pm

Nonstop2h 26m

$227

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Sat 11/1

2:55 pm-4:43 pm

Nonstop2h 48m

Lambert-St Louis

Mon 11/3

4:10 pm-7:57 pm

Nonstop2h 47m

$227

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 10/31

6:30 am-12:55 pm

1 stop7h 25m

Lambert-St Louis

Sun 11/2

8:05 pm-11:20 pm

Nonstop2h 15m

$229

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Thu 11/13

2:40 pm-4:33 pm

Nonstop2h 53m

Lambert-St Louis

Mon 11/17

6:09 pm-11:08 pm

1 stop3h 59m

$237

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Fri 11/7

2:55 pm-4:43 pm

Nonstop2h 48m

Lambert-St Louis

Sun 11/9

6:40 am-11:59 am

1 stop4h 19m

$237

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Thu 10/30

8:05 am-12:35 pm

1 stop5h 30m

Lambert-St Louis

Mon 11/3

5:15 pm-11:06 pm

1 stop4h 51m

$239

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 10/15

10:00 pm-11:57 pm

Nonstop2h 57m

Lambert-St Louis

Wed 10/22

6:00 am-9:39 am

Nonstop2h 39m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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Best time to book a flight from Connecticut to St. Louis

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

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

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

Find hourly flight availability from Connecticut 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 September 16, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Connecticut 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 Connecticut?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Connecticut.

  • How long is the flight from Connecticut to St. Louis?

    There are many flights that can get you from Connecticut to St. Louis in 2h 43m. Fly via Frontier, Southwest, or Delta to get the fastest option. The distance between Connecticut and St. Louis is about 885 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $99. Users have also found prices from $110 and $114 on Frontier and Southwest, respectively.

  • What are the most popular routes from Connecticut to St. Louis?

    When deciding which route to take from Connecticut to St. Louis consider New York John F Kennedy Intl - Lambert-St Louis, New York LaGuardia - Lambert-St Louis or Newark - Lambert-St Louis as they are the most popular.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Connecticut to St. Louis (average of $311). Flying from Connecticut 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
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Connecticut to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Connecticut to St. Louis

Discover the top 5 airlines that operate flights from Connecticut 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$188FlexibilityNo cancel feeOn-time62%
DeltaCheapest$246Average$393FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$263Average$368FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$290Average$411FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$339Average$621FlexibilityNo cancel feeOn-time69%

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