St. Louis

$57+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — STL
Mar 6 — Mar 131
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Cheap 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 February 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
Fri 2/205:15 am
EWR
-
STL
1 stop26h 36m
Multiple Airlines
Mon 2/238:22 pm
STL
-
EWR
1 stop26h 07m
Multiple Airlines
Deal found 2/3$123
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 2/243:00 pm
EWR
-
STL
1 stop8h 27m
Multiple Airlines
Mon 3/28:22 pm
STL
-
EWR
1 stop10h 43m
Multiple Airlines
Deal found 2/1$124
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/36:00 pm
EWR
-
STL
1 stop13h 51m
Multiple Airlines
Mon 3/92:09 pm
STL
-
EWR
1 stop6h 21m
Multiple Airlines
Deal found 2/3$125
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/43:00 pm
EWR
-
STL
1 stop8h 27m
Multiple Airlines
Wed 3/1111:32 am
STL
-
EWR
1 stop8h 58m
Multiple Airlines
Deal found 2/3$127
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/2410:31 pm
EWR
-
STL
1 stop9h 20m
Multiple Airlines
Wed 2/258:17 pm
STL
-
EWR
1 stop10h 48m
Multiple Airlines
Deal found 2/2$129
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Fri 3/66:00 am
EWR
-
STL
1 stop6h 49m
Frontier
Wed 3/1111:32 am
STL
-
EWR
1 stop8h 58m
Frontier
Deal found 2/2$131
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/510:31 pm
EWR
-
STL
1 stop14h 18m
Frontier
Mon 3/92:09 pm
STL
-
EWR
1 stop9h 54m
Frontier
Deal found 2/3$133
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 2/1910:45 pm
EWR
-
STL
1 stop9h 06m
Multiple Airlines
Mon 2/238:22 pm
STL
-
EWR
1 stop26h 07m
Multiple Airlines
Deal found 2/3$135
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/36:00 pm
EWR
-
STL
1 stop13h 51m
Multiple Airlines
Tue 3/104:51 pm
STL
-
EWR
1 stop15h 09m
Multiple Airlines
Deal found 2/3$136
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 2/175:15 am
EWR
-
STL
1 stop26h 36m
Multiple Airlines
Fri 2/208:20 pm
STL
-
EWR
1 stop10h 45m
Multiple Airlines
Deal found 2/3$137
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/410:19 am
BDL
-
STL
1 stop13h 08m
Multiple Airlines
Mon 3/97:47 am
STL
-
BDL
2 stops14h 29m
Multiple Airlines
Deal found 2/2$184
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 2/249:49 am
BDL
-
STL
1 stop13h 38m
Frontier
Sun 3/13:49 pm
STL
-
BDL
1 stop17h 18m
Frontier
Deal found 2/1$211

Find 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 February 4, 2026.

Round-trip from

$123
(Kiwi.com)

One-way from

$57
(Trip.com)

Popular in

January

Cheapest in

August

Average price

$370
From Connecticut to Lambert-St Louis
One-way flight from Connecticut to Lambert-St Louis
Highest demand for flights based on searches. 11% potential increase in price ($52 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 4, 2026.
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

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 4/8

11:55 am-4:16 pm

1 stop5h 21m

Lambert-St Louis

Sat 4/11

10:50 am-3:59 pm

1 stop4h 09m

$197

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Thu 2/19

2:30 pm-8:41 pm

1 stop7h 11m

Lambert-St Louis

Sun 2/22

6:35 am-12:09 pm

1 stop4h 34m

$217

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Fri 2/27

2:30 pm-8:41 pm

1 stop7h 11m

Lambert-St Louis

Sun 3/1

6:35 am-12:09 pm

1 stop4h 34m

$217

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Wed 3/4

10:19 am-10:27 pm

1 stop13h 08m

Lambert-St Louis

Mon 3/9

4:51 pm-4:20 pm

1 stop22h 29m

$218

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 5/14

8:08 pm-11:19 pm

1 stop28h 11m

Lambert-St Louis

Sat 5/16

4:55 pm-7:17 pm

1 stop25h 22m

$253

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Mon 3/23

8:08 pm-10:32 am

2 stops15h 24m

Lambert-St Louis

Thu 3/26

4:51 pm-7:13 pm

1 stop25h 22m

$268

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 3/4

9:58 pm-11:59 pm

Nonstop3h 01m

Lambert-St Louis

Sat 3/7

7:41 am-2:06 pm

1 stop5h 25m

$269

New HavenSt. Louis

HVN - STL

HVNSTL

Tweed-New Haven

Sun 3/1

8:44 pm-11:59 pm

1 stop28h 15m

Lambert-St Louis

Sun 3/8

7:52 am-11:27 am

2 stops26h 35m

$272

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 3/6

6:30 pm-8:30 pm

Nonstop3h 00m

Lambert-St Louis

Tue 3/10

6:35 pm-9:55 pm

Nonstop2h 20m

$278

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 3/7

3:30 pm-5:29 pm

Nonstop2h 59m

Lambert-St Louis

Thu 3/12

1:34 pm-5:00 pm

Nonstop2h 26m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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 $209). Flying from Connecticut to St. Louis in December is currently the most expensive (average of $314). 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.

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 3h 01m. Fly via Delta, Frontier, or United Airlines to get the fastest option. The distance between Connecticut and St. Louis is about 869 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 American Airlines. According to our data, you can fly for as low as $123. Users have also found prices from $135 and $148 on Delta and Southwest, respectively.

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

  • 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 $209). Flying from Connecticut to St. Louis in December is currently the most expensive (average of $314). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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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.

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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$188FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$385FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$365FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$279Average$410FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$342Average$506FlexibilityNo cancel feeOn-time69%

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