$106 Find Cheap Flights from St. Louis to Connecticut - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Connecticut departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Book Cheap St. Louis to Connecticut Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Connecticut that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Connecticut

Mon, Sep 14 - Sun, Sep 20
Frontier Logo
2:29 pm - 1:01 amSTL  Lambert-St Louis-EWR Newark
33h 32m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
10:29 pm - 1:10 pmEWR  Newark-STL Lambert-St Louis
15h 41m1 stop Atlanta Hartsfield-Jackson
$216Frontier
Fri, Oct 30 - Mon, Nov 2
Frontier Logo
8:34 pm - 10:27 amSTL  Lambert-St Louis-EWR Newark
12h 53m1 stop Orlando
Frontier Logo
10:29 pm - 9:40 amEWR  Newark-STL Lambert-St Louis
12h 11m1 stop Atlanta Hartsfield-Jackson
$218Frontier
Fri, Oct 9 - Sun, Oct 11
Multiple Airlines Logo
8:34 pm - 12:54 pmSTL  Lambert-St Louis-BDL Hartford Bradley Intl
15h 20m1 stop Orlando
Multiple Airlines Logo
8:55 pm - 9:40 amBDL  Hartford Bradley Intl-STL Lambert-St Louis
13h 45m2 stops Orlando Atlanta Hartsfield-Jackson
$266Multiple Airlines
Sat, Sep 5 - Sun, Sep 6
Delta Logo
2:00 pm - 5:38 pmSTL  Lambert-St Louis-LGA New York LaGuardia
2h 38mnonstop
Delta Logo
10:00 am - 11:47 amLGA  New York LaGuardia-STL Lambert-St Louis
2h 47mnonstop
$293Delta
Sat, Sep 5 - Sun, Sep 6
Delta Logo
7:05 am - 10:35 amSTL  Lambert-St Louis-LGA New York LaGuardia
2h 30mnonstop
Delta Logo
1:50 pm - 3:38 pmLGA  New York LaGuardia-STL Lambert-St Louis
2h 48mnonstop
$293Delta
Sat, Sep 5 - Sun, Sep 6
Southwest Logo
2:05 pm - 9:45 pmSTL  Lambert-St Louis-LGA New York LaGuardia
6h 40m1 stop Dallas Love Field
Southwest Logo
9:10 am - 10:55 amLGA  New York LaGuardia-STL Lambert-St Louis
2h 45mnonstop
$303Southwest
Sat, Sep 5 - Sun, Sep 6
American Airlines Logo
5:13 pm - 11:45 pmSTL  Lambert-St Louis-LGA New York LaGuardia
5h 32m1 stop Chicago O'Hare Intl
American Airlines Logo
6:59 pm - 8:48 pmLGA  New York LaGuardia-STL Lambert-St Louis
2h 49mnonstop
$303American Airlines
Sat, Sep 5 - Sat, Sep 5
American Airlines Logo
5:00 am - 10:10 amSTL  Lambert-St Louis-LGA New York LaGuardia
4h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
7:10 pm - 8:59 pmLGA  New York LaGuardia-STL Lambert-St Louis
2h 49mnonstop
$303American Airlines
Sat, Sep 5 - Sun, Sep 6
Southwest Logo
4:20 pm - 7:40 pmSTL  Lambert-St Louis-LGA New York LaGuardia
2h 20mnonstop
Southwest Logo
11:25 am - 1:10 pmLGA  New York LaGuardia-STL Lambert-St Louis
2h 45mnonstop
$312Southwest
Sun, Sep 13 - Thu, Sep 17
Multiple Airlines Logo
5:19 pm - 5:44 pmSTL  Lambert-St Louis-HVN Tweed-New Haven
23h 25m2 stops Orlando Raleigh-Durham
Multiple Airlines Logo
7:54 pm - 4:34 pmHVN  Tweed-New Haven-STL Lambert-St Louis
21h 40m1 stop Orlando
$342Multiple Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Connecticut flights

Get data-powered insights and trends into flights from St. Louis to Connecticut to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Connecticut?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Connecticut departing in September.

Flight prices are below average for this route right now.

Flights to Connecticut from St. Louis usually cost between $361 and $504 in September.
The lowest price found in the past 5 days was $264 on Frontier (Sep 3-Sep 17).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Connecticut, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Connecticut is October, when tickets cost $338 (return) on average. On the other hand, the most expensive months are April and June, when the average cost of round-trip tickets is $445 and $416 respectively.

Good to know

Low season

January

Cheapest flight

$106
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from St. Louis to Newark Liberty Airport

FAQs - booking Connecticut flights

  • How does KAYAK find such low prices on flights from St. Louis to Connecticut?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Connecticut.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Connecticut?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Connecticut is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Connecticut?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Connecticut with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Connecticut?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Connecticut up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Connecticut

  • Looking for a cheap flight? 25% of our users found tickets from St. Louis to the following destinations at these prices or less: Newark $261 one-way - $401 round-trip; New York $225 one-way - $336 round-trip

Reviews of the top 3 airlines serving from St. Louis to Connecticut

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Connecticut. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Connecticut? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4216 reviews
8.6Crew
7.0Food
8.0Comfort
8.1Boarding
7.5Entertainment
Airline reviews

Exceptional. The gate crew responded quickly and got me onto this earlier flight as the final passenger, saving me more than four hours of wait time for my reserved flight.

10.0 ExcellentAnonymous, Aug 2026
Read more Southwest reviews

Exceptional. The gate crew responded quickly and got me onto this earlier flight as the final passenger, saving me more than four hours of wait time for my reserved flight.

The flight was delayed due to earlier issues at other airports. The crew was excellent & made it a good trip.

Snacks are always pretzels. Why can't you also offer peanuts ?

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Very good. Sad to learn Southwest is going start to charge for bags

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

The flight was promptly on schedule and Southwest delivered everything they promised. No excuses for any shortfalls just 100% ownership of their responsibilities and business. The boarding and seating policy is a complete shambles. What started out as a great idea when Southwest first hit the market has been turned into a disaster due to the lack of integrity in many of the people who fly Southwest and take advantage of Southwest generosity at the expense of their fellow passengers.

Crew was excellent - Plane was fine. Media was good, could use more kid shows; Not a fan of the brownie brittle -- snack could be slightly better.

Left on time and arrived early. Brand new plane and no parts missing. Comfortable seats. The actual Captain spoke prior to the flight and reassured everyone about safety. Crew was so nice and fun. Perfect flight!

Everything went smoothly and the plane wasn’t full. It was delayed though. The delay was increased due to a crew change which was frustrating.

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

Flight was delayed due to needing a replacement flight crew. Delta changed the aircraft type in Detroit. One hour delay. But once in the air, good flight

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

My luggage was not sent with us. Not sure if this is Envoy Air responsibility but that was a very BAD experience

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Good crew and flight was on time. It’s a small plane with limited overhead luggage space. They said the overhead space was full and I had to check my bag. There was still space when I got on. Waiting for my checked luggage added 30 minutes to my trip. Not the end of the world but also not great.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

No enough space plus only allowing one laggage instead of two like other airlines.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Overall boarding and debarking is a joke. I dont even bring luggage anymore on trips because you can never allow them to be place then in the overhead bin or you have to pay or you check them which is even worse having to wait for your luggage on the tarmac.

First time flying internationally with AA and probably my last. Not military friendly at all. Didn't allow free checked bag for military family members (dependents) on orders like other airlines. We were charged $100 for baggage weight overage (5 lbs!)even though we had military orders allowing us extra.. Didn’t allow military members to board early. Inefficient and long wait time to board. Seats are smaller and more uncomfortable than other airlines.. no drink service for over 7 hrs of flight! After initial meal was served, the crew never offered a snack or drinks until the breakfast's was served 1 1/2 hrs before landing. Overall expensive and poor experience for the entire flight.

Everything you need to know for your flight from St. Louis to Connecticut

Information on your arrival and departure airports