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Cheap flights from St. Louis to New York from $337

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to New York 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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Cheap round-trip flights

Multiple Airlines Logo
10:57 am - 2:17 pmSTL-HVN
26h 20m2 stops
Multiple Airlines Logo
7:26 pm - 1:17 pmHVN-STL
18h 51m1 stop
$337Multiple Airlines
Find Deal
Thu, Oct 23 - Thu, Oct 30
Multiple Airlines Logo
7:52 pm - 6:46 pmSTL-HVN
21h 54m2 stops
Multiple Airlines Logo
7:26 pm - 8:21 pmHVN-STL
25h 55m1 stop
$576Multiple Airlines
Find Deal
Wed, Oct 8 - Sun, Oct 12
Multiple Airlines Logo
6:05 pm - 10:26 amSTL-HVN
39h 21m2 stops
Multiple Airlines Logo
7:26 pm - 5:10 pmHVN-STL
22h 44m1 stop
$686Multiple Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to New Haven 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 September 24, 2025.
Use the filters below to find and compare flights from St. Louis to New Haven that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Thu 10/23

10:57 am-2:17 pm

2 stops26h 20m

Tweed-New Haven

Thu 10/30

7:26 pm-1:17 pm

1 stop18h 51m

$337

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Wed 10/8

7:52 pm-6:46 pm

2 stops21h 54m

Tweed-New Haven

Sun 10/12

7:26 pm-8:21 pm

1 stop25h 55m

$576

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Fri 10/17

6:05 pm-10:26 am

2 stops39h 21m

Tweed-New Haven

Sun 10/19

7:26 pm-5:10 pm

1 stop22h 44m

$686

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from St. Louis to New Haven

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 Lambert-St Louis to Tweed-New Haven flight route?

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

What cabin class options are available on Lambert-St Louis to Tweed-New Haven flights?

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

When to book flights from St. Louis to New Haven

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to New Haven according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to New Haven (STL to HVN) flight deals and tips

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

Direct flights

None
There are no direct flights from St. Louis to New Haven. There are no popular flight routes from St. Louis to New Haven.
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  • How far is Lambert-St Louis to Tweed-New Haven by plane?

    Lambert-St Louis and Tweed-New Haven are 930.8 mi apart from one another. 21h 54m is a normal flight duration for this route.

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

    Prices for flights from Lambert-St Louis Airport to Tweed-New Haven Airport were last updated today.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Tweed-New Haven Airport.

  • What documentation or ID do you need to fly to Tweed-New Haven Airport?

    The travel and health documents required for your trip to Tweed-New Haven Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Tweed-New Haven Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Old Saybrook
Madison
Wallingford
Westbrook
Essex
Chester

Why use momondo?

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

It is quick and easy to find St. Louis to New Haven flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to New Haven that suits you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to New Haven from St. Louis.

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

Yes momondo offers price alerts on flights to New Haven from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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