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Cheap flights from Connecticut to St. Louis from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Connecticut to St. Louis departing on 6/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Connecticut to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:44 pm - 11:57 pm
BDL
-
STL
7h 13m
1 stop
Frontier Logo
4:19 pm - 4:45 pm
STL
-
BDL
23h 26m
1 stop
$233Frontier
Mon, Jun 1 - Thu, Jun 4
Frontier Logo
5:44 pm - 11:57 pm
BDL
-
STL
7h 13m
1 stop
Frontier Logo
4:17 pm - 11:38 am
STL
-
BDL
18h 21m
1 stop
$236Frontier
Mon, Jun 8 - Thu, Jun 11
Multiple Airlines Logo
8:36 pm - 10:29 am
HVN
-
STL
14h 53m
1 stop
Multiple Airlines Logo
6:33 pm - 2:57 pm
STL
-
HVN
19h 24m
2 stops
$283Multiple Airlines
Sun, May 31 - Tue, Jun 2
Multiple Airlines Logo
5:43 pm - 8:52 am
PVD
-
STL
40h 09m
2 stops
Multiple Airlines Logo
8:08 pm - 6:00 am
STL
-
PVD
8h 52m
1 stop
$305Multiple Airlines
Mon, Jun 15 - Wed, Jun 17
Southwest Logo
12:00 pm - 1:50 pm
LGA
-
STL
2h 50mnonstop
Southwest Logo
7:35 pm - 11:00 pm
STL
-
LGA
2h 25mnonstop
$306Southwest
Wed, May 27 - Wed, Jun 3
Delta Logo
3:10 pm - 5:05 pm
JFK
-
STL
2h 55mnonstop
Delta Logo
4:25 pm - 8:05 pm
STL
-
JFK
2h 40mnonstop
$306Delta
Wed, May 27 - Wed, Jun 3
Southwest Logo
9:40 am - 3:10 pm
LGA
-
STL
6h 30m
1 stop
Southwest Logo
5:55 pm - 10:55 pm
STL
-
LGA
4h 00m
1 stop
$308Southwest
Wed, Jun 17 - Wed, Jun 24
American Airlines Logo
9:25 pm - 11:09 pm
LGA
-
STL
2h 44mnonstop
American Airlines Logo
7:38 am - 4:29 pm
STL
-
LGA
7h 51m
1 stop
$309American Airlines
Sat, Oct 17 - Tue, Oct 20
American Airlines Logo
10:00 am - 2:03 pm
JFK
-
STL
5h 03m
1 stop
American Airlines Logo
6:55 am - 8:04 pm
STL
-
JFK
12h 09m
1 stop
$312American Airlines
Sun, May 24 - Tue, Jul 7
Delta Logo
5:00 pm - 10:18 pm
LGA
-
STL
6h 18m
1 stop
Delta Logo
3:57 pm - 11:23 pm
STL
-
LGA
6h 26m
1 stop
$313Delta
Wed, Jun 24 - Tue, Jun 30

Frontier flights from Connecticut to St. Louis

Our best Frontier deals on Connecticut to St. Louis flight tickets
Frontier
Jun 1
BDL5:44 pmHartford Bradley Intl
7h 13m
1 stop
STL11:57 pmLambert-St Louis
Jun 4
STL4:19 pmLambert-St Louis
23h 26m
1 stop
BDL4:45 pmHartford Bradley Intl
$233
Frontier
Jun 8
BDL5:44 pmHartford Bradley Intl
7h 13m
1 stop
STL11:57 pmLambert-St Louis
Jun 11
STL4:17 pmLambert-St Louis
18h 21m
1 stop
BDL11:38 amHartford Bradley Intl
$236
Frontier
Jun 5
EWR10:29 pmNewark
11h 26m
1 stop
STL8:55 amLambert-St Louis
Jun 8
STL4:19 pmLambert-St Louis
17h 12m
1 stop
EWR10:31 amNewark
$239

United Airlines flights from Connecticut to St. Louis

Our best United Airlines deals on Connecticut to St. Louis flight tickets
United Airlines
Jun 10
EWR10:07 pmNewark
2h 28m
STL11:35 pmLambert-St Louis
Jun 17
STL6:00 amLambert-St Louis
2h 29m
EWR9:29 amNewark
$293
United Airlines
Jun 10
EWR10:07 pmNewark
2h 28m
STL11:35 pmLambert-St Louis
Jun 17
STL6:00 amLambert-St Louis
5h 11m
1 stop
EWR12:11 pmNewark
$303
United Airlines
Aug 26
EWR9:59 pmNewark
2h 39m
STL11:38 pmLambert-St Louis
Aug 27
STL7:00 amLambert-St Louis
2h 31m
EWR10:31 amNewark
$304

momondo 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, momondo users made 832,500 searches. Data last updated May 13, 2026.
Use the filters below to find and compare flights from Connecticut to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Mon 6/1

5:44 pm-11:57 pm

1 stop7h 13m

Lambert-St Louis

Thu 6/4

4:19 pm-4:45 pm

1 stop23h 26m

$233

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Mon 6/8

5:44 pm-11:57 pm

1 stop7h 13m

Lambert-St Louis

Thu 6/11

4:17 pm-11:38 am

1 stop18h 21m

$236

New HavenSt. Louis

HVN - STL

HVNSTL

Tweed-New Haven

Sun 5/31

8:36 pm-10:29 am

1 stop14h 53m

Lambert-St Louis

Tue 6/2

6:33 pm-2:57 pm

2 stops19h 24m

$283

ProvidenceSt. Louis

PVD - STL

PVDSTL

Providence-TFGreen

Mon 6/15

5:43 pm-8:52 am

2 stops40h 09m

Lambert-St Louis

Wed 6/17

8:08 pm-6:00 am

1 stop8h 52m

$305
Quickest round-trip

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 5/27

12:00 pm-1:50 pm

Nonstop2h 50m

Lambert-St Louis

Wed 6/3

7:35 pm-11:00 pm

Nonstop2h 25m

$306

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Wed 5/27

3:10 pm-5:05 pm

Nonstop2h 55m

Lambert-St Louis

Wed 6/3

4:25 pm-8:05 pm

Nonstop2h 40m

$306

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 6/17

9:40 am-3:10 pm

1 stop6h 30m

Lambert-St Louis

Wed 6/24

5:55 pm-10:55 pm

1 stop4h 00m

$308

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 10/17

9:25 pm-11:09 pm

Nonstop2h 44m

Lambert-St Louis

Tue 10/20

7:38 am-4:29 pm

1 stop7h 51m

$309

New YorkSt. Louis

JFK - STL

JFKSTL

New York John F Kennedy Intl

Sun 5/24

10:00 am-2:03 pm

1 stop5h 03m

Lambert-St Louis

Tue 7/7

6:55 am-8:04 pm

1 stop12h 09m

$312

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 6/24

5:00 pm-10:18 pm

1 stop6h 18m

Lambert-St Louis

Tue 6/30

3:57 pm-11:23 pm

1 stop6h 26m

$313

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Connecticut to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, August is the cheapest month to fly from Connecticut to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $74. The month of September is another great option to travel to St. Louis, with average flight prices from Connecticut averaging around $81.

Cheap Connecticut to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Connecticut to St. Louis

Fastest flight time

2h 27m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in St. Louis

1 airport
The fastest flight from Connecticut to St. Louis takes 2h 27m
Direct flights go from Connecticut to St. Louis on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport in St. Louis. From Connecticut there are direct flights to Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Connecticut to St. Louis

  • When did momondo last update prices for flights from Connecticut to Lambert-St Louis Airport?

    Prices for flights from Connecticut to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Connecticut to Lambert-St Louis Airport?

  • How old do you have to be to fly from Connecticut to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Connecticut to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Connecticut to St. Louis

Compare and see reviews for airlines that fly from Connecticut to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $242Free CancellationRating
7.4
9,706 reviews
Search United Airlines flights
American AirlinesPriceFrom $246Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights
DeltaPriceFrom $246Free CancellationRating
7.9
8,450 reviews
Search Delta flights
SouthwestPriceFrom $274Free CancellationRating
7.9
4,296 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Alton
Wentzville
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Connecticut to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Connecticut to St. Louis. momondo saves you time and could save you money on your trip.

Can I find flights from Connecticut to St. Louis with flexible booking policies on momondo?

All flight searches from Connecticut to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Connecticut to St. Louis?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Connecticut to St. Louis.

I’m not ready to book a flight from Connecticut to St. Louis right now. Can momondo alert me if prices change?

Price alerts on flights to St. Louis from Connecticut are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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