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Cheap flights from Connecticut to St. Louis from $72

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 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
11:30 am - 9:22 amLGA-STL
22h 52m2 stops
Frontier Logo
11:32 am - 10:44 pmSTL-LGA
10h 12m1 stop
$212Frontier
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Wed, Oct 22 - Thu, Oct 23
Frontier Logo
12:45 pm - 5:31 pmLGA-STL
5h 46m1 stop
Frontier Logo
7:43 pm - 2:29 pmSTL-LGA
17h 46m2 stops
$213Frontier
Find Deal
Thu, Dec 4 - Mon, Dec 8
Multiple Airlines Logo
8:29 am - 4:35 pmLGA-STL
9h 06m2 stops
Multiple Airlines Logo
11:27 am - 4:29 pmSTL-LGA
28h 02m1 stop
$214Multiple Airlines
Find Deal
Tue, Oct 28 - Sun, Nov 2
Spirit Airlines Logo
6:30 pm - 11:01 amLGA-STL
17h 31m1 stop
Spirit Airlines Logo
2:48 pm - 11:25 pmSTL-LGA
7h 37m1 stop
$219Spirit Airlines
Find Deal
Wed, Dec 17 - Sat, Jan 10
Multiple Airlines Logo
12:30 pm - 11:01 pmLGA-STL
11h 31m1 stop
Multiple Airlines Logo
7:03 pm - 8:57 pmSTL-LGA
24h 54m1 stop
$226Multiple Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
American Airlines Logo
10:30 am - 6:13 pmLGA-STL
8h 43m1 stop
American Airlines Logo
7:00 am - 10:33 amSTL-LGA
2h 33mnonstop
$229American Airlines
Find Deal
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
4:46 pm - 9:13 pmBDL-STL
5h 27m1 stop
United Airlines Logo
6:30 am - 2:22 pmSTL-BDL
6h 52m1 stop
$237United Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
United Airlines Logo
9:44 pm - 11:33 pmEWR-STL
2h 49mnonstop
United Airlines Logo
5:59 pm - 9:43 pmSTL-EWR
2h 44mnonstop
$241United Airlines
Find Deal
Thu, Jan 1 - Wed, Jan 7
American Airlines Logo
6:00 am - 9:37 amEWR-STL
4h 37m1 stop
American Airlines Logo
4:34 pm - 10:29 pmSTL-EWR
4h 55m1 stop
$249American Airlines
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Tue, Oct 21 - Sat, Oct 25
Spirit Airlines Logo
12:59 pm - 10:02 amLGA-STL
22h 03m2 stops
Spirit Airlines Logo
7:15 pm - 9:30 pmSTL-LGA
25h 15m2 stops
$270Spirit Airlines
Find Deal
Wed, Oct 29 - Sat, Nov 1

Frontier flights from Connecticut to St. Louis

Our best Frontier deals on Connecticut to St. Louis flight tickets
Frontier
Oct 22
LGA11:30 amNew York LaGuardia
22h 52m
2 stops
STL9:22 amLambert-St Louis
Oct 23
STL11:32 amLambert-St Louis
10h 12m
1 stop
LGA10:44 pmNew York LaGuardia
$212
Find similar
Frontier
Dec 4
LGA12:45 pmNew York LaGuardia
5h 46m
1 stop
STL5:31 pmLambert-St Louis
Dec 8
STL7:43 pmLambert-St Louis
17h 46m
2 stops
LGA2:29 pmNew York LaGuardia
$213
Find similar
Frontier
Oct 22
LGA5:59 pmNew York LaGuardia
17h 38m
1 stop
STL10:37 amLambert-St Louis
Oct 27
STL7:52 pmLambert-St Louis
14h 37m
2 stops
LGA11:29 amNew York LaGuardia
$215
Find similar

Spirit Airlines flights from Connecticut to St. Louis

Our best Spirit Airlines deals on Connecticut to St. Louis flight tickets
Spirit Airlines
Dec 17
LGA6:30 pmNew York LaGuardia
17h 31m
1 stop
STL11:01 amLambert-St Louis
Jan 10
STL2:48 pmLambert-St Louis
7h 37m
1 stop
LGA11:25 pmNew York LaGuardia
$219
Find similar
Spirit Airlines
Oct 29
LGA12:59 pmNew York LaGuardia
22h 03m
2 stops
STL10:02 amLambert-St Louis
Nov 1
STL7:15 pmLambert-St Louis
25h 15m
2 stops
LGA9:30 pmNew York LaGuardia
$270
Find similar
Spirit Airlines
Oct 18
LGA6:00 amNew York LaGuardia
13h 10m
1 stop
STL6:10 pmLambert-St Louis
Oct 19
STL10:57 amLambert-St Louis
11h 28m
1 stop
LGA11:25 pmNew York LaGuardia
$292
Find similar

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 October 6, 2025.
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

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 10/22

11:30 am-9:22 am

2 stops22h 52m

Lambert-St Louis

Thu 10/23

11:32 am-10:44 pm

1 stop10h 12m

$212

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Thu 12/4

12:45 pm-5:31 pm

1 stop5h 46m

Lambert-St Louis

Mon 12/8

7:43 pm-2:29 pm

2 stops17h 46m

$213

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 10/28

8:29 am-4:35 pm

2 stops9h 06m

Lambert-St Louis

Sun 11/2

11:27 am-4:29 pm

1 stop28h 02m

$214

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 12/17

6:30 pm-11:01 am

1 stop17h 31m

Lambert-St Louis

Sat 1/10

2:48 pm-11:25 pm

1 stop7h 37m

$219

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 11/19

12:30 pm-11:01 pm

1 stop11h 31m

Lambert-St Louis

Sun 11/23

7:03 pm-8:57 pm

1 stop24h 54m

$226

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 1/17

10:30 am-6:13 pm

1 stop8h 43m

Lambert-St Louis

Tue 1/20

7:00 am-10:33 am

Nonstop2h 33m

$229

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Wed 1/28

4:46 pm-9:13 pm

1 stop5h 27m

Lambert-St Louis

Sun 2/1

6:30 am-2:22 pm

1 stop6h 52m

$237

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Thu 1/1

9:44 pm-11:33 pm

Nonstop2h 49m

Lambert-St Louis

Wed 1/7

5:59 pm-9:43 pm

Nonstop2h 44m

$241

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 10/21

6:00 am-9:37 am

1 stop4h 37m

Lambert-St Louis

Sat 10/25

4:34 pm-10:29 pm

1 stop4h 55m

$249

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 10/29

12:59 pm-10:02 am

2 stops22h 03m

Lambert-St Louis

Sat 11/1

7:15 pm-9:30 pm

2 stops25h 15m

$270

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 $296. The month of September is another great option to travel to St. Louis, with average flight prices from Connecticut averaging around $356.

What is the cheapest Connecticut to Lambert-St Louis flight route?

Fly from Tweed-New Haven to Lambert-St Louis for the best Connecticut - Lambert-St Louis flight prices

What cabin class options are available on Connecticut to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Connecticut to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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 38m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from Connecticut to St. Louis takes 2h 38m
Direct flights go from Connecticut to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • 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.

  • What is the most popular plane model from Connecticut to St. Louis?

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
FrontierPriceFrom $109Free CancellationRating
5.8
3,147 reviews
Search Frontier flights
DeltaPriceFrom $246Free CancellationRating
7.9
7,967 reviews
Search Delta flights
American AirlinesPriceFrom $262Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
SouthwestPriceFrom $294Free CancellationRating
8.0
4,232 reviews
Search Southwest flights
United AirlinesPriceFrom $339Free CancellationRating
7.4
8,957 reviews
Search United Airlines 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
Florissant
Maryland Heights
O'Fallon
Collinsville
Fenton
Wentzville
St. Peters
Alton
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

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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