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St. Louis

$55+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — STL
Dec 7 — Dec 141
Sun 12/7
Sun 12/14
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 November 7, 2025.

Round-trip from

$186
(Kiwi.com)

One-way from

$55
(Priceline)

Popular in

May

Cheapest in

August

Average price

$426
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. 5% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 7, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Mon 12/82:07 pmBDL - STL
1 stop9h 26mMultiple Airlines
Wed 12/103:30 pmSTL - BDL
2 stops30h 32mMultiple Airlines
Deal found 11/6$213
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/161:36 pmBDL - STL
1 stop21h 04mFrontier
Thu 11/204:13 pmSTL - BDL
1 stop24h 04mFrontier
Deal found 11/6$223
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Tue 11/2510:54 amBDL - STL
2 stops38h 03mFrontier
Thu 12/1112:04 pmSTL - BDL
1 stop22h 04mFrontier
Deal found 11/5$230
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Thu 12/47:05 amBDL - STL
2 stops26h 54mMultiple Airlines
Thu 12/1112:04 pmSTL - BDL
1 stop22h 04mMultiple Airlines
Deal found 11/6$236
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Wed 11/128:05 amBDL - STL
1 stop30h 12mMultiple Airlines
Wed 11/197:45 pmSTL - BDL
2 stops13h 07mMultiple Airlines
Deal found 11/5$238
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Wed 12/312:26 pmPVD - STL
2 stops23h 41mMultiple Airlines
Wed 12/103:30 pmSTL - PVD
1 stop20h 25mMultiple Airlines
Deal found 11/4$240
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Tue 11/186:45 pmEWR - STL
1 stop29h 16mMultiple Airlines
Sat 11/227:43 pmSTL - EWR
2 stops27h 50mMultiple Airlines
Deal found 11/5$242
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Thu 11/135:14 amEWR - STL
1 stop9h 03mMultiple Airlines
Thu 11/137:45 pmSTL - EWR
2 stops27h 49mMultiple Airlines
Deal found 11/6$243
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/169:00 amEWR - STL
1 stop6h 25mUnited Airlines
Sun 12/217:00 amSTL - EWR
Nonstop2h 25mUnited Airlines
Deal found 11/4$244
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Tue 11/181:19 pmEWR - STL
2 stops21h 46mMultiple Airlines
Thu 11/204:13 pmSTL - EWR
1 stop7h 08mMultiple Airlines
Deal found 11/6$246
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Wed 11/1911:30 amEWR - STL
1 stop12h 31mMultiple Airlines
Fri 11/213:53 pmSTL - EWR
2 stops25h 45mMultiple Airlines
Deal found 11/5$247
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Mon 12/86:00 amPVD - STL
1 stop17h 33mMultiple Airlines
Tue 12/163:30 pmSTL - PVD
1 stop22h 25mMultiple Airlines
Deal found 11/6$248

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 November 7, 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

Thu 12/4

7:05 am-8:59 am

2 stops26h 54m

Lambert-St Louis

Thu 12/11

12:04 pm-11:08 am

1 stop22h 04m

$236

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 11/27

10:54 am-11:57 pm

2 stops14h 03m

Lambert-St Louis

Thu 12/11

12:04 pm-11:08 am

1 stop22h 04m

$241

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 12/16

9:00 am-2:25 pm

1 stop6h 25m

Lambert-St Louis

Sun 12/21

7:00 am-10:25 am

Nonstop2h 25m

$244

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 2/26

8:19 pm-7:50 am

1 stop12h 31m

Lambert-St Louis

Sun 3/1

8:45 am-7:22 pm

1 stop9h 37m

$244

ProvidenceSt. Louis

PVD - STL

PVDSTL

Providence-TFGreen

Mon 12/8

6:00 am-10:33 pm

1 stop17h 33m

Lambert-St Louis

Tue 12/16

3:30 pm-2:55 pm

1 stop22h 25m

$248

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Fri 12/5

9:44 pm-11:42 pm

Nonstop2h 58m

Lambert-St Louis

Mon 12/8

5:27 pm-11:02 pm

1 stop4h 35m

$279

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Fri 12/5

6:59 pm-10:45 pm

1 stop4h 46m

Lambert-St Louis

Sun 12/7

7:00 am-10:29 am

Nonstop2h 29m

$279

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 12/30

9:54 pm-11:43 pm

Nonstop2h 49m

Lambert-St Louis

Sat 1/3

7:00 am-10:25 am

Nonstop2h 25m

$280

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 11/27

2:15 pm-6:35 pm

1 stop5h 20m

Lambert-St Louis

Sat 12/13

11:19 am-6:00 pm

1 stop5h 41m

$282

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 11/27

2:15 pm-6:35 pm

1 stop5h 20m

Lambert-St Louis

Wed 12/17

6:05 pm-11:38 pm

1 stop4h 33m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

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, February is the cheapest month in which you can book a flight from Connecticut to St. Louis (average of $210). Flying from Connecticut to St. Louis in July is currently the most expensive (average of $302). 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 November 7, 2025.

It’s typically best to fly out from Connecticut to St. Louis in the morning. Doing so could potentially save you 26% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Connecticut to St. Louis. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Connecticut to St. Louis flight should consider departing on Thursday 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.

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 5h 20m. Fly via Frontier, United Airlines, or Delta to get the fastest option. The distance between Connecticut and St. Louis is about 954 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 Frontier. According to our data, you can fly for as low as $97. Users have also found prices from $100 and $134 on United Airlines 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 Newark - Lambert-St Louis, New York LaGuardia - Lambert-St Louis or New York John F Kennedy Intl - 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, February is the cheapest month in which you can book a flight from Connecticut to St. Louis (average of $210). Flying from Connecticut to St. Louis in July is currently the most expensive (average of $302). 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 November 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$188FlexibilityNo cancel feeOn-time62%
DeltaCheapest$245Average$389FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$255Average$366FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$279Average$402FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$339Average$621FlexibilityNo cancel feeOn-time69%

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