$66 Find Cheap Flights from St. Louis to Connecticut

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 3/31. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Connecticut

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Connecticut, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Connecticut, as well as popular online travel agencies
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Flight Deals

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

Wed, Mar 11 - Tue, Mar 17
Frontier Logo
11:32 am - 1:03 am
STL
-
EWR
12h 31m
1 stop
Frontier Logo
10:30 pm - 10:37 am
EWR
-
STL
13h 07m
1 stop
$138Frontier
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
11:21 am - 7:51 am
STL
-
EWR
19h 30m
1 stop
Multiple Airlines Logo
10:29 pm - 6:50 am
EWR
-
STL
9h 21m
1 stop
$139Multiple Airlines
Mon, Mar 9 - Wed, Mar 11
Multiple Airlines Logo
2:09 pm - 9:30 pm
STL
-
EWR
6h 21m
1 stop
Multiple Airlines Logo
5:15 am - 10:37 am
EWR
-
STL
6h 22m
1 stop
$141Multiple Airlines
Tue, May 19 - Wed, May 20
American Airlines Logo
6:00 am - 1:59 pm
STL
-
LGA
6h 59m
1 stop
American Airlines Logo
6:38 am - 2:03 pm
LGA
-
STL
8h 25m
1 stop
$263American Airlines
Thu, Apr 9 - Tue, Apr 14
American Airlines Logo
6:35 am - 10:09 am
STL
-
LGA
2h 34mnonstop
American Airlines Logo
6:38 am - 2:01 pm
LGA
-
STL
8h 23m
1 stop
$265American Airlines
Tue, Mar 17 - Tue, Mar 24
Delta Logo
9:41 am - 12:59 pm
STL
-
LGA
2h 18mnonstop
Delta Logo
6:55 am - 8:44 am
LGA
-
STL
2h 49mnonstop
$266Delta
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
7:40 am - 3:07 pm
STL
-
PVD
6h 27m
1 stop
United Airlines Logo
4:20 pm - 9:42 pm
PVD
-
STL
6h 22m
1 stop
$335United Airlines
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
10:00 am - 7:27 pm
STL
-
PVD
8h 27m
2 stops
United Airlines Logo
4:20 pm - 9:42 pm
PVD
-
STL
6h 22m
1 stop
$340United Airlines
Tue, Mar 10 - Thu, Mar 12
Southwest Logo
7:30 am - 2:15 pm
STL
-
PVD
5h 45m
1 stop
Southwest Logo
6:40 pm - 11:10 pm
PVD
-
STL
5h 30m
1 stop
$347Southwest
Tue, Mar 10 - Thu, Mar 12
Southwest Logo
12:10 pm - 9:10 pm
STL
-
PVD
8h 00m
2 stops
Southwest Logo
5:30 pm - 11:05 pm
PVD
-
STL
6h 35m
1 stop
$352Southwest
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.

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 September, when tickets cost $279 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is $399 and $398 respectively.

Good to know

Low seasonJanuary
Cheapest flight$66
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 8% increase in price.
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: New York $181 one-way - $307 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 4295 reviews
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
8.1Boarding
Airline reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

4.0 OkayAnonymous, Feb 2026
BOI - LAS
Read more Southwest reviews

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

The charges were ridiculous for an hour flight and the turbulence was very scary.

Still need to work out the kinks on the new assigned seating boarding process. Otherwise, a very good flight.

WiFi did not work. Boarding with the new seating assignments took too long. The temperature in the terminal was obnoxious. +/- 80°

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

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

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

Terrible. Four hour delay because Delta could not find crew to man the aircraft. Terrible communication. Terrible insight into the delays. One of the worst flight experiences I’ve had.

The landing was the worst I’ve experienced with a flight.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

First flight out and was 85 minutes delayed. Notification came out way too late

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

Delta continues to set the benchmark for traveler-friendly service with minimal disruption and clear communication within the mainland US (coast to coast). I am consistently pleased to be a Delta customer, and this experience once again met my expectations. There was a brief delay departing from MIA due to a technical issue that required the aircraft to return to the gate. However, the situation was handled professionally and transparently. Fortunately, my planned layover allowed ample buffer time, so the adjustment caused no stress. Overall, another smooth and reassuring experience.

Good experience and the flight landed early. There was no food I had or entertainment.

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was on time and there was an empty seat next to me. That makes for a good flight!

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

Everything was good. Flight was very full so crew was busy. After we boarded and plane pulled away from the gate, we were delayed about 40 minutes- sitting on the runway - due to weather en route or at the destination. While weather is not the fault of the airline- it’s terrible to sit on a plane and not moving.

We missed our flight and got stranded in Miami where we had to rent a hotel we could not afford. they would not work with us because they said it was weather related even though the gate attendant said it was not. I could go on but trying to get satisfaction has wore me down, which I believe is the intent. My only solution is to never fly AA again.

No Snacks or Entertainment. The flight was short, snacks should still be given.

We lost a day of our vacation because AA did not get the plane to the gate on time. Even though the gate attendant was very clear that it was not weather related, AA would do nothing because there was some snow that day. They basically said the gate attendant was wrong even though she was on the front line of the situation and they were not.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

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

Information on your arrival and departure airports