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$100+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
BDL — STL
May 4 — May 111
Sun 5/4
Sun 5/11
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 April 29, 2025.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$211
(CheapOair)

One-way from

$100
(Booking.com)
Provider with most accurate pricing for Springfield (SFY)-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Springfield (SFY)-Lambert-St Louis flights.
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From Connecticut to Lambert-St Louis
Search Deals
One-way flight from Connecticut to Lambert-St Louis
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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 April 29, 2025.

This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:00 pmLGA - STL
1 stop27h 14mFrontier
Mon 5/195:45 pmSTL - LGA
1 stop26h 14mFrontier
Deal found 4/28$211
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:59 amJFK - STL
1 stop18h 07mFrontier
Mon 5/199:55 pmSTL - JFK
1 stop30h 35mFrontier
Deal found 4/28$211
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/2010:19 amLGA - STL
1 stop6h 02mAmerican Airlines
Tue 5/206:00 pmSTL - LGA
Nonstop2h 25mAmerican Airlines
Deal found 4/28$214
This Booking.com deal was found by Cheapflights users on 4/28. 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 5/1710:00 pmLGA - STL
1 stop27h 06mMultiple Airlines
Sat 5/2410:10 amSTL - LGA
1 stop12h 14mMultiple Airlines
Deal found 4/28$220
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/46:59 pmLGA - STL
Nonstop2h 49mDelta
Wed 6/116:45 pmSTL - LGA
Nonstop2h 30mDelta
Deal found 4/29$221
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/411:25 amLGA - STL
1 stop5h 05mUnited Airlines
Thu 6/56:30 amSTL - LGA
1 stop4h 45mUnited Airlines
Deal found 4/29$236
This Southwest deal was found by Cheapflights users on 4/27. 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.
Sat 5/245:45 pmLGA - STL
Nonstop2h 50mSouthwest
Tue 5/277:45 pmSTL - LGA
Nonstop2h 25mSouthwest
Deal found 4/27$237
This Mytrip deal was found by Cheapflights users on 4/27. 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 6/126:30 amLGA - STL
1 stop11h 34mSpirit Airlines
Sun 6/156:12 pmSTL - LGA
1 stop17h 00mSpirit Airlines
Deal found 4/27$238
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/278:05 amJFK - STL
1 stop7h 30mDelta
Tue 6/31:09 pmSTL - JFK
1 stop7h 51mDelta
Deal found 4/29$257
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 8/278:00 amEWR - STL
1 stop5h 24mDelta
Mon 9/17:05 pmSTL - EWR
1 stop5h 00mDelta
Deal found 4/28$261
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/410:00 pmEWR - STL
Nonstop2h 59mUnited Airlines
Mon 6/306:00 amSTL - EWR
Nonstop2h 35mUnited Airlines
Deal found 4/29$268
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/56:36 amJFK - STL
1 stop10h 41mAmerican Airlines
Tue 7/86:00 amSTL - JFK
1 stop6h 28mAmerican Airlines
Deal found 4/29$269

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 April 29, 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

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 5/15

10:00 pm-12:14 am

1 stop27h 14m

Lambert-St Louis

Mon 5/19

5:45 pm-8:59 pm

1 stop26h 14m

$211

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Thu 5/15

6:59 am-12:06 am

1 stop18h 07m

Lambert-St Louis

Mon 5/19

9:55 pm-5:30 am

1 stop30h 35m

$211

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 5/20

10:19 am-3:21 pm

1 stop6h 02m

Lambert-St Louis

Tue 5/20

6:00 pm-9:25 pm

Nonstop2h 25m

$214

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 5/17

10:00 pm-12:06 am

1 stop27h 06m

Lambert-St Louis

Sat 5/24

10:10 am-11:24 pm

1 stop12h 14m

$220

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 6/4

6:59 pm-8:48 pm

Nonstop2h 49m

Lambert-St Louis

Wed 6/11

6:45 pm-10:15 pm

Nonstop2h 30m

$221

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 6/4

11:25 am-3:30 pm

1 stop5h 05m

Lambert-St Louis

Thu 6/5

6:30 am-12:15 pm

1 stop4h 45m

$236

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 5/24

5:45 pm-7:35 pm

Nonstop2h 50m

Lambert-St Louis

Tue 5/27

7:45 pm-11:10 pm

Nonstop2h 25m

$237

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 6/12

6:30 am-5:04 pm

1 stop11h 34m

Lambert-St Louis

Sun 6/15

6:12 pm-12:12 pm

1 stop17h 00m

$238

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Tue 5/27

8:05 am-2:35 pm

1 stop7h 30m

Lambert-St Louis

Tue 6/3

1:09 pm-10:00 pm

1 stop7h 51m

$257

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sun 5/4

10:00 pm-11:59 pm

Nonstop2h 59m

Lambert-St Louis

Mon 6/30

6:00 am-9:35 am

Nonstop2h 35m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 April 29, 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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 April 29, 2025.
To help decide which airline to fly from Connecticut to St. Louis, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $100. Users have also found prices from $111 and $117 on Delta and Spirit Airlines, 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 John F Kennedy Intl - Lambert-St Louis or New York LaGuardia - 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 Connecticut?

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

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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.
Newark to Kansas City flights
Newark to St. Louis flights
John F Kennedy Intl to Kansas City flights
John F Kennedy Intl to St. Louis flights
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Boston to Kansas City flights
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Portland to Kansas City flights
O'Hare Intl to St. Louis flights
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Dallas/Fort Worth to Kansas City flights
Hobby to Kansas City flights
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Philadelphia to Kansas City flights
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George Bush Intcntl to Kansas City flights
Ontario to Kansas City flights
Reagan-National to Kansas City flights
Detroit to St. Louis flights
Atlanta to Kansas City flights
Orlando to St. Louis flights
Tampa to Kansas City flights
Orlando to Kansas City flights
Denver to Springfield flights

Top 6 airlines flying from Connecticut to St. Louis

Discover the top 6 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$120Average$226FlexibilityNo cancel feeOn-time62%
Avelo AirlinesCheapest$138Average$157FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$270Average$369FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$275Average$366FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$290Average$411FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$339Average$541FlexibilityNo cancel feeOn-time69%

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