What is the cheapest airline that flies from Connecticut to Lambert-St Louis?

Frontier, United Airlines, and Delta are the most popular carriers operating from Connecticut to Lambert-St Louis

What airlines fly to St. Louis?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to St. Louis from Connecticut according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to St. Louis?

Flight times from Connecticut to St. Louis vary, but if you’re flying out of Hartford and flying into St. Louis (one of the most popular routes), then the duration is 4h 54m on average. Another popular route from Connecticut to St. Louis is flying from New Haven to St. Louis, which will take roughly 13h 21m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Connecticut to St. Louis on average per week?

The number of flights available between Connecticut and St. Louis is 113 per week as of December 2025. The most frequent departure day is Fri, with 20% of weekly flights leaving on this day.

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?

There are 6 operators available for flights from Connecticut to Lambert-St Louis Airport as of December 2025.

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.

$62 Cheap Flights from Connecticut to St. Louis in 2025/26

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Find the cheapest flights from Connecticut to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:40 pm - 6:51 am

EWR

STL

14h 11m1 stop

8:32 pm - 11:30 pm

STL

EWR

25h 58m1 stop

$127Multiple Airlines

Fri, Jan 16 - Mon, Jan 19

5:40 pm - 6:51 am

EWR

STL

14h 11m1 stop

8:32 pm - 11:30 pm

STL

EWR

25h 58m1 stop

$129Multiple Airlines

Fri, Jan 16 - Mon, Jan 19

11:30 am - 6:51 am

EWR

STL

20h 21m1 stop

5:42 pm - 10:49 am

STL

EWR

16h 07m1 stop

$134Frontier

Sun, Jan 18 - Tue, Jan 20

10:30 pm - 6:51 am

EWR

STL

9h 21m1 stop

5:42 pm - 10:49 am

STL

EWR

16h 07m1 stop

$141Frontier

Fri, Jan 23 - Sun, Jan 25

2:12 pm - 7:04 pm

BDL

STL

5h 52m1 stop

6:29 am - 11:59 am

STL

BDL

4h 30m1 stop

$269Delta

Thu, Dec 25 - Wed, Dec 31

6:47 pm - 11:12 pm

LGA

STL

5h 25m1 stop

7:00 am - 10:33 am

STL

LGA

2h 33mnonstop

$283American Airlines

Tue, Jan 6 - Tue, Jan 13

6:30 am - 5:10 pm

LGA

STL

11h 40m2 stops

7:40 am - 1:05 pm

STL

LGA

4h 25m1 stop

$286Southwest

Tue, Jan 13 - Sat, Jan 17

5:09 pm - 9:41 pm

LGA

STL

5h 32m1 stop

6:00 am - 11:22 am

STL

LGA

4h 22m1 stop

$287American Airlines

Fri, Feb 20 - Wed, Feb 25

3:30 pm - 5:29 pm

LGA

STL

2h 59mnonstop

6:00 am - 11:46 am

STL

LGA

4h 46m1 stop

$289Delta

Sat, Mar 7 - Sun, Mar 8

6:30 am - 5:10 pm

LGA

STL

11h 40m2 stops

6:00 am - 4:25 pm

STL

LGA

9h 25m1 stop

$304Southwest

Tue, Jan 20 - Fri, Jan 23

Delta flights from Connecticut to St. Louis

Our best Delta deals on Connecticut to St. Louis flight tickets

Delta

Dec 25

BDL4:47 pmHartford Bradley Intl

7h 51m

1 stop

STL11:38 pmLambert-St Louis

Jan 1

STL5:13 pmLambert-St Louis

5h 23m

1 stop

BDL11:36 pmHartford Bradley Intl

$269

Find similar

Delta

Mar 7

LGA3:30 pmNew York LaGuardia

2h 59m

STL5:29 pmLambert-St Louis

Mar 8

STL6:00 amLambert-St Louis

4h 46m

1 stop

LGA11:46 amNew York LaGuardia

$289

Find similar

Delta

Jan 16

LGA6:30 amNew York LaGuardia

3h 04m

STL8:34 amLambert-St Louis

Jan 19

STL9:45 amLambert-St Louis

2h 26m

LGA1:11 pmNew York LaGuardia

$293

Find similar

Frontier flights from Connecticut to St. Louis

Our best Frontier deals on Connecticut to St. Louis flight tickets

Frontier

Jan 23

EWR10:30 pmNewark

9h 21m

1 stop

STL6:51 amLambert-St Louis

Jan 25

STL5:42 pmLambert-St Louis

16h 07m

1 stop

EWR10:49 amNewark

$141

Find similar

Frontier

Jan 8

EWR5:59 amNewark

9h 49m

1 stop

STL2:48 pmLambert-St Louis

Jan 11

STL3:43 pmLambert-St Louis

8h 27m

1 stop

EWR1:10 amNewark

$144

Find similar

Frontier

Feb 6

EWR10:30 pmNewark

9h 21m

1 stop

STL6:51 amLambert-St Louis

Feb 8

STL8:59 amLambert-St Louis

15h 09m

2 stops

EWR1:08 amNewark

$167

Find similar

Fly from

Fly to

Route

Depart

Return

Price

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Fri 1/16

5:40 pm-6:51 am

1 stop14h 11m

Lambert-St Louis

Mon 1/19

8:32 pm-11:30 pm

1 stop25h 58m

$127

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Fri 1/16

5:40 pm-6:51 am

1 stop14h 11m

Lambert-St Louis

Mon 1/19

8:32 pm-11:30 pm

1 stop25h 58m

$129

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sun 1/18

11:30 am-6:51 am

1 stop20h 21m

Lambert-St Louis

Tue 1/20

5:42 pm-10:49 am

1 stop16h 07m

$134

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Fri 1/23

10:30 pm-6:51 am

1 stop9h 21m

Lambert-St Louis

Sun 1/25

5:42 pm-10:49 am

1 stop16h 07m

$141

HartfordSt. Louis

BDL - STL

BDLSTL

Hartford Bradley Intl

Thu 12/25

2:12 pm-7:04 pm

1 stop5h 52m

Lambert-St Louis

Wed 12/31

6:29 am-11:59 am

1 stop4h 30m

$269

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 1/6

6:47 pm-11:12 pm

1 stop5h 25m

Lambert-St Louis

Tue 1/13

7:00 am-10:33 am

Nonstop2h 33m

$283

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 1/13

6:30 am-5:10 pm

2 stops11h 40m

Lambert-St Louis

Sat 1/17

7:40 am-1:05 pm

1 stop4h 25m

$286

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Fri 2/20

5:09 pm-9:41 pm

1 stop5h 32m

Lambert-St Louis

Wed 2/25

6:00 am-11:22 am

1 stop4h 22m

$287

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Sat 3/7

3:30 pm-5:29 pm

Nonstop2h 59m

Lambert-St Louis

Sun 3/8

6:00 am-11:46 am

1 stop4h 46m

$289

New YorkSt. Louis

LGA - STL

LGASTL

New York LaGuardia

Tue 1/20

6:30 am-5:10 pm

2 stops11h 40m

Lambert-St Louis

Fri 1/23

6:00 am-4:25 pm

1 stop9h 25m

$304

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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.

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 40m
Direct flights	Every day
Airports in St. Louis	1 airport

The fastest flight from Connecticut to St. Louis takes 2h 40m

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?
There are 6 operators available for flights from Connecticut to Lambert-St Louis Airport as of December 2025.
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?
momondo data reveals that the most frequently booked plane model on the route from Connecticut to St. Louis is Boeing 737-700, representing 75.00% of all bookings. The subsequent popular model is Canadair (Bombardier) Regional Jet 900 at 25.00%.

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
Frontier	PriceFrom $109	Free Cancellation	Rating 5.8 3,080 reviews	Search Frontier flights
United Airlines	PriceFrom $242	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
American Airlines	PriceFrom $246	Free Cancellation	Rating 7.2 11,052 reviews	Search American Airlines flights
Delta	PriceFrom $246	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Southwest	PriceFrom $279	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights

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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.