HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$62+ 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — STL
Jan 23 — Jan 301
Fri 1/23
Fri 1/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Connecticut to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 24, 2025.

This Booking.com deal was found by Cheapflights users on 12/22. 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 12/3110:30 pmEWR - STL
1 stop12h 10mFrontier
Sun 1/410:57 amSTL - EWR
1 stop9h 38mFrontier
Deal found 12/22$231
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 12/316:20 amJFK - STL
1 stop28h 20mFrontier
Sun 1/410:57 amSTL - JFK
1 stop21h 04mFrontier
Deal found 12/22$274
This Travelocity deal was found by Cheapflights users on 12/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:00 pmLGA - STL
1 stop11h 33mFrontier
Sun 1/410:57 amSTL - LGA
1 stop11h 17mFrontier
Deal found 12/21$277
This United Airlines deal was found by Cheapflights users on 12/22. 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 12/309:30 amEWR - STL
Nonstop3h 07mUnited Airlines
Thu 1/17:00 amSTL - EWR
Nonstop2h 34mUnited Airlines
Deal found 12/22$283
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Thu 12/256:15 pmLGA - STL
1 stop5h 28mUnited Airlines
Thu 1/18:05 amSTL - LGA
1 stop6h 08mUnited Airlines
Deal found 12/22$288
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Thu 12/256:15 pmLGA - STL
1 stop5h 28mUnited Airlines
Wed 12/313:10 pmSTL - LGA
1 stop5h 04mUnited Airlines
Deal found 12/22$289
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Thu 12/254:49 pmEWR - STL
1 stop5h 54mUnited Airlines
Wed 12/313:10 pmSTL - EWR
1 stop7h 05mUnited Airlines
Deal found 12/22$303
This Delta deal was found by Cheapflights users on 12/24. 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.
Thu 12/255:45 pmLGA - STL
1 stop6h 53mDelta
Wed 12/315:13 pmSTL - LGA
1 stop5h 28mDelta
Deal found 12/24$317
This Delta deal was found by Cheapflights users on 12/23. 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.
Tue 12/305:16 pmLGA - STL
1 stop4h 25mDelta
Thu 1/17:10 amSTL - LGA
Nonstop2h 27mDelta
Deal found 12/23$321
This United Airlines deal was found by Cheapflights users on 12/24. 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.
Wed 12/249:59 pmEWR - STL
Nonstop2h 58mUnited Airlines
Wed 12/315:02 pmSTL - EWR
1 stop5h 13mUnited Airlines
Deal found 12/24$321
This American Airlines deal was found by Cheapflights users on 12/24. 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.
Tue 12/307:11 pmLGA - STL
Nonstop2h 57mAmerican Airlines
Sat 1/36:56 amSTL - LGA
Nonstop2h 31mAmerican Airlines
Deal found 12/24$325
This Kiwi.com deal was found by Cheapflights users on 12/21. 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 12/3110:05 pmEWR - STL
1 stop12h 35mMultiple Airlines
Sun 1/410:57 amSTL - EWR
1 stop20h 03mMultiple Airlines
Deal found 12/21$328

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 December 24, 2025.

Round-trip from

$128
(Kiwi.com)

One-way from

$62
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$446
From Connecticut to Lambert-St Louis
Search Deals
One-way flight from Connecticut to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 24, 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 2/26

6:00 pm-11:59 pm

1 stop6h 59m

Lambert-St Louis

Sat 2/28

3:49 pm-10:37 am

1 stop17h 48m

$145

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 5/5

6:00 am-9:42 am

1 stop4h 42m

Lambert-St Louis

Wed 5/13

6:45 am-12:04 pm

1 stop4h 19m

$261

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sun 1/18

7:45 am-12:29 pm

1 stop5h 44m

Lambert-St Louis

Sun 1/18

4:49 pm-10:58 pm

1 stop5h 09m

$261

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sat 5/9

6:30 pm-11:38 pm

1 stop6h 08m

Lambert-St Louis

Wed 5/13

6:00 am-12:23 pm

1 stop5h 23m

$261

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sat 5/9

7:00 am-12:54 pm

1 stop6h 54m

Lambert-St Louis

Sat 5/9

5:30 pm-1:03 am

1 stop6h 33m

$261

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 5/6

8:00 am-12:06 pm

1 stop5h 06m

Lambert-St Louis

Tue 5/12

6:45 am-12:04 pm

1 stop4h 19m

$261

ProvidenceSt. Louis

PVD - STL

PVDSTL

Providence-TFGreen

Tue 1/13

8:15 am-10:34 pm

1 stop15h 19m

Lambert-St Louis

Fri 1/16

5:11 pm-10:39 pm

1 stop28h 28m

$265

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sat 2/14

9:59 pm-12:05 am

Nonstop3h 06m

Lambert-St Louis

Sun 2/15

7:00 am-10:29 am

Nonstop2h 29m

$267

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sun 1/25

9:57 pm-11:59 pm

Nonstop3h 02m

Lambert-St Louis

Tue 1/27

7:00 am-10:37 am

Nonstop2h 37m

$267

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 1/17

7:20 am-9:25 am

Nonstop3h 05m

Lambert-St Louis

Mon 1/26

6:00 am-1:25 pm

1 stop6h 25m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 60 results
1
2
3
...
6

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 $192). 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 December 24, 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 4h 42m. Fly via Frontier, Delta, 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?

    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 $192). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Connecticut to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Kansas City flights
Denver to St. Louis flights
Newark to St. Louis flights
Denver to Kansas City flights
Dallas/Fort Worth to St. Louis flights
LaGuardia to Kansas City flights
Los Angeles to Kansas City flights
O'Hare Intl to Kansas City flights
Dulles Intl to St. Louis flights
Newark to Kansas City flights
Dulles Intl to Kansas City flights
Hobby to St. Louis flights
San Francisco to Kansas City flights
LaGuardia to St. Louis flights
Boston to Kansas City flights
John F Kennedy Intl to St. Louis flights
Dallas/Fort Worth to Kansas City flights
Boston to St. Louis flights
Baltimore to St. Louis flights
Hobby to Kansas City flights
Los Angeles to St. Louis flights
Atlanta to St. Louis flights
George Bush Intcntl to St. Louis flights
Atlanta to Kansas City flights
Minneapolis to St. Louis flights
San Francisco to St. Louis flights
Orlando to Kansas City flights
Sky Harbor Intl to Kansas City flights
Detroit to St. Louis flights
Reagan-National to Kansas City flights
George Bush Intcntl to Kansas City flights
Philadelphia to St. Louis flights
Orlando to St. Louis flights
Seattle to Kansas City flights
Baltimore to Kansas City flights
Reagan-National to St. Louis flights
Sky Harbor Intl to St. Louis flights
Seattle to St. Louis flights
Minneapolis to Kansas City flights
Raleigh to Kansas City flights
Pittsburgh to St. Louis flights
O'Hare Intl to St. Louis flights
Miami to Kansas City flights
Philadelphia to Kansas City flights
Detroit to Kansas City flights
Love Field to St. Louis flights
Charlotte to St. Louis flights
Ontario to Kansas City flights
Midway to Kansas City flights
Santa Ana to Kansas City flights

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 December 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$179FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$242Average$535FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$246Average$366FlexibilityNo cancel feeOn-time71%
DeltaCheapest$246Average$385FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$279Average$401FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.