What is the cheapest day to fly from St. Louis to New Haven?

Travelers seeking maximum savings on their St. Louis to New Haven flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in New Haven ranges from 3.1 - 4.5 inches per month. May is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit New Haven when rainfall is around 3.1 in.

If weather is an important factor for your trip to New Haven, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What is the cheapest time of day to fly from STL to HVN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to New Haven as you normally would.

Can I find deals for flights from St. Louis to New Haven that include hotel bookings?

Yes. In addition to deals on St. Louis to New Haven flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to New Haven?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to New Haven.

Can I find deals for business class flights from St. Louis to New Haven?

Yes. Cheapflights offers flight deals from St. Louis to New Haven by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$186+ Cheap Flights from St. Louis to New Haven

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to New Haven with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to New Haven

Round-trip from	$324 (Kiwi.com)
One-way from	$186 (Kiwi.com)
Popular in	November
Cheapest in	April
Average price	$302

From Lambert-St Louis to Tweed-New Haven

Search Deals

One-way flight from Lambert-St Louis to Tweed-New Haven

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($46 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from St. Louis to New Haven

Cheapest flights from St. Louis to New Haven
Explore the most affordable flight options available from St. Louis to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Thu 10/3010:57 amSTL - HVN

2 stops26h 20mMultiple Airlines

Sun 11/27:26 pmHVN - STL

1 stop15h 14mMultiple Airlines

Deal found 9/15

$324

Mon 10/206:05 pmSTL - HVN

1 stop18h 52mMultiple Airlines

Fri 10/243:02 pmHVN - STL

2 stops28h 08mMultiple Airlines

Deal found 9/15

$334

Tue 11/259:54 pmSTL - HVN

2 stops38h 49mMultiple Airlines

Sun 11/307:26 pmHVN - STL

1 stop29h 31mMultiple Airlines

Deal found 9/15

$817

Best flights from St. Louis to New Haven
Discover carefully curated flight deals from St. Louis to New Haven that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2025.

Thu 10/3010:57 amSTL - HVN

2 stops26h 20mMultiple Airlines

Sun 11/27:26 pmHVN - STL

1 stop15h 14mMultiple Airlines

Deal found 9/15

$324

Mon 10/206:05 pmSTL - HVN

1 stop18h 52mMultiple Airlines

Fri 10/243:02 pmHVN - STL

2 stops28h 08mMultiple Airlines

Deal found 9/15

$334

Tue 11/259:54 pmSTL - HVN

2 stops38h 49mMultiple Airlines

Sun 11/307:26 pmHVN - STL

1 stop29h 31mMultiple Airlines

Deal found 9/15

$817

Last-minute flights from St. Louis to New Haven
Discover last-minute flight deals from St. Louis to New Haven. Data last updated September 17, 2025 and is based on user searches.

Mon 10/206:05 pmSTL - HVN

1 stop18h 52mMultiple Airlines

Fri 10/243:02 pmHVN - STL

2 stops28h 08mMultiple Airlines

Deal found 9/15

$334

Thu 10/3010:57 amSTL - HVN

2 stops26h 20mMultiple Airlines

Sun 11/27:26 pmHVN - STL

1 stop15h 14mMultiple Airlines

Deal found 9/15

$324

One-way flights from St. Louis to New Haven
Search for one-way flight options from St. Louis to New Haven. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Fri 10/106:05 pmSTL - HVN

3 stops39h 21mMultiple Airlines

Deal found 9/16

$186

Cheapflights Fare Finder

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 10/30

10:57 am-2:17 pm

2 stops26h 20m

Tweed-New Haven

Sun 11/2

7:26 pm-9:40 am

1 stop15h 14m

$324

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Mon 10/20

6:05 pm-1:57 pm

1 stop18h 52m

Tweed-New Haven

Fri 10/24

3:02 pm-6:10 pm

2 stops28h 08m

$334

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Tue 11/25

9:54 pm-1:43 pm

2 stops38h 49m

Tweed-New Haven

Sun 11/30

7:26 pm-11:57 pm

1 stop29h 31m

$817

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Fri 10/10

6:05 pm-10:26 am

3 stops39h 21m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Best time to book a flight from St. Louis to New Haven

Have a flexible travel schedule? Discover the best time to fly to New Haven from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to New Haven

What is the cheapest month to book a flight from St. Louis to New Haven?

Currently, February is the cheapest month in which you can book a flight from St. Louis to New Haven (average of $91). Flying from St. Louis to New Haven in December is currently the most expensive (average of $181). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Can I find deals for flights from St. Louis to New Haven that include hotel bookings?
Yes. In addition to deals on St. Louis to New Haven flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to New Haven?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to New Haven.
Can I find deals for business class flights from St. Louis to New Haven?
Yes. Cheapflights offers flight deals from St. Louis to New Haven by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to New Haven?
Currently, February is the cheapest month in which you can book a flight from St. Louis to New Haven (average of $91). Flying from St. Louis to New Haven in December is currently the most expensive (average of $181). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Wallingford

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to New Haven

Other flights to New Haven

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$186+ Cheap flights from St. Louis to New Haven (STL - HVN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to New Haven with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to New Haven

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to New Haven

Cheapest flights from St. Louis to New HavenExplore the most affordable flight options available from St. Louis to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Explore the most affordable flight options available from St. Louis to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to New Haven that are best for you.

Best time to book a flight from St. Louis to New Haven

Have a flexible travel schedule? Discover the best time to fly to New Haven from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to New Haven

What is the cheapest month to book a flight from St. Louis to New Haven?

Related info for your journey

Find useful and relevant information for your journey from St. Louis to New Haven. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from St. Louis to New Haven that include hotel bookings?

How can I find direct flights from St. Louis to New Haven?

Can I find deals for business class flights from St. Louis to New Haven?

What is the cheapest month to book a flight from St. Louis to New Haven?

Traveling to a place near New Haven?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to New Haven

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to New Haven
Explore the most affordable flight options available from St. Louis to New Haven. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.