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Cheap flights from Connecticut to St. Louis from $70

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 4/16. 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 - 12:21 am
BDL
-
STL
7h 37m
1 stop
Frontier Logo
4:19 pm - 4:45 pm
STL
-
BDL
23h 26m
1 stop
$216Frontier
Mon, May 18 - Thu, May 21
Frontier Logo
5:44 pm - 12:21 am
BDL
-
STL
7h 37m
1 stop
Frontier Logo
4:19 pm - 4:45 pm
STL
-
BDL
23h 26m
1 stop
$236Frontier
Mon, May 18 - Thu, May 21
American Airlines Logo
7:00 am - 11:47 am
BDL
-
STL
5h 47m
1 stop
American Airlines Logo
6:00 am - 12:13 pm
STL
-
BDL
5h 13m
1 stop
$263American Airlines
Wed, May 20 - Tue, May 26
Southwest Logo
4:05 pm - 9:05 pm
BDL
-
STL
6h 00m
1 stop
Southwest Logo
10:25 am - 4:00 pm
STL
-
BDL
4h 35m
1 stop
$264Southwest
Tue, Apr 21 - Tue, Apr 28
Southwest Logo
4:05 pm - 10:10 pm
BDL
-
STL
7h 05m
2 stops
Southwest Logo
10:25 am - 4:00 pm
STL
-
BDL
4h 35m
1 stop
$270Southwest
Tue, Apr 21 - Tue, Apr 28
American Airlines Logo
7:29 pm - 11:46 pm
BDL
-
STL
5h 17m
1 stop
American Airlines Logo
7:05 am - 3:39 pm
STL
-
BDL
7h 34m
1 stop
$290American Airlines
Mon, May 4 - Wed, May 6
Delta Logo
7:00 pm - 11:36 pm
LGA
-
STL
5h 36m
1 stop
Delta Logo
6:48 am - 2:01 pm
STL
-
LGA
6h 13m
1 stop
$293Delta
Mon, Apr 20 - Sat, Apr 25
Multiple Airlines Logo
3:29 pm - 11:19 pm
LGA
-
STL
8h 50m
1 stop
Multiple Airlines Logo
11:25 am - 10:10 pm
STL
-
LGA
9h 45m
2 stops
$295Multiple Airlines
Tue, Apr 21 - Thu, Apr 23
Delta Logo
11:00 am - 3:32 pm
LGA
-
STL
5h 32m
1 stop
Delta Logo
6:00 am - 1:42 pm
STL
-
LGA
6h 42m
1 stop
$296Delta
Wed, May 6 - Wed, Jul 8
Multiple Airlines Logo
5:50 am - 10:30 am
EWR
-
STL
5h 40m
1 stop
Multiple Airlines Logo
4:59 pm - 9:01 am
STL
-
EWR
15h 02m
1 stop
$356Multiple Airlines
Tue, Apr 7 - Tue, Apr 7

Frontier flights from Connecticut to St. Louis

Our best Frontier deals on Connecticut to St. Louis flight tickets
Frontier
May 18
BDL5:44 pmHartford Bradley Intl
7h 37m
1 stop
STL12:21 amLambert-St Louis
May 21
STL4:19 pmLambert-St Louis
23h 26m
1 stop
BDL4:45 pmHartford Bradley Intl
$216
Frontier
May 18
BDL5:44 pmHartford Bradley Intl
7h 37m
1 stop
STL12:21 amLambert-St Louis
May 21
STL4:19 pmLambert-St Louis
23h 26m
1 stop
BDL4:45 pmHartford Bradley Intl
$236
Frontier
Mar 27
BDL8:08 pmHartford Bradley Intl
28h 11m
1 stop
STL11:19 pmLambert-St Louis
Apr 6
STL4:59 pmLambert-St Louis
23h 40m
1 stop
BDL5:39 pmHartford Bradley Intl
$240

Southwest flights from Connecticut to St. Louis

Our best Southwest deals on Connecticut to St. Louis flight tickets
Southwest
Apr 21
BDL4:05 pmHartford Bradley Intl
6h 00m
1 stop
STL9:05 pmLambert-St Louis
Apr 28
STL10:25 amLambert-St Louis
4h 35m
1 stop
BDL4:00 pmHartford Bradley Intl
$264
Southwest
Apr 21
BDL4:05 pmHartford Bradley Intl
7h 05m
2 stops
STL10:10 pmLambert-St Louis
Apr 28
STL10:25 amLambert-St Louis
4h 35m
1 stop
BDL4:00 pmHartford Bradley Intl
$270
Southwest
Jun 3
BDL12:50 pmHartford Bradley Intl
8h 10m
2 stops
STL8:00 pmLambert-St Louis
Jun 9
STL5:40 amLambert-St Louis
7h 20m
2 stops
BDL2:00 pmHartford Bradley Intl
$275

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 March 25, 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 5/18

5:44 pm-12:21 am

1 stop7h 37m

Lambert-St Louis

Thu 5/21

4:19 pm-4:45 pm

1 stop23h 26m

$216

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Mon 5/18

5:44 pm-12:21 am

1 stop7h 37m

Lambert-St Louis

Thu 5/21

4:19 pm-4:45 pm

1 stop23h 26m

$236

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Wed 5/20

7:00 am-11:47 am

1 stop5h 47m

Lambert-St Louis

Tue 5/26

6:00 am-12:13 pm

1 stop5h 13m

$263
Quickest round-trip

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Tue 4/21

4:05 pm-9:05 pm

1 stop6h 00m

Lambert-St Louis

Tue 4/28

10:25 am-4:00 pm

1 stop4h 35m

$264

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Tue 4/21

4:05 pm-10:10 pm

2 stops7h 05m

Lambert-St Louis

Tue 4/28

10:25 am-4:00 pm

1 stop4h 35m

$270

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Mon 5/4

7:29 pm-11:46 pm

1 stop5h 17m

Lambert-St Louis

Wed 5/6

7:05 am-3:39 pm

1 stop7h 34m

$290

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Mon 4/20

7:00 pm-11:36 pm

1 stop5h 36m

Lambert-St Louis

Sat 4/25

6:48 am-2:01 pm

1 stop6h 13m

$293

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 4/21

3:29 pm-11:19 pm

1 stop8h 50m

Lambert-St Louis

Thu 4/23

11:25 am-10:10 pm

2 stops9h 45m

$295

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Wed 5/6

11:00 am-3:32 pm

1 stop5h 32m

Lambert-St Louis

Wed 7/8

6:00 am-1:42 pm

1 stop6h 42m

$296

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 4/7

5:50 am-10:30 am

1 stop5h 40m

Lambert-St Louis

Tue 4/7

4:59 pm-9:01 am

1 stop15h 02m

$356

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 $304. The month of September is another great option to travel to St. Louis, with average flight prices from Connecticut averaging around $356.

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 28m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from Connecticut to St. Louis takes 2h 28m
Direct flights go from Connecticut to St. Louis every day.
There is 1 airport in St. Louis. From Connecticut there are direct flights to 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 $81Free CancellationRating
5.7
3,017 reviews
Search Frontier flights
DeltaPriceFrom $238Free CancellationRating
7.9
8,327 reviews
Search Delta flights
United AirlinesPriceFrom $242Free CancellationRating
7.4
9,477 reviews
Search United Airlines flights
American AirlinesPriceFrom $246Free CancellationRating
7.1
11,494 reviews
Search American Airlines flights
SouthwestPriceFrom $283Free CancellationRating
8.0
4,332 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
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
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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