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).

How far in advance should I book a flight from St. Louis to New Haven?

Travelers have found it’s best to book a flight 45 days in advance to save up to 55% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 45 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to New Haven 1-2 weeks in advance for as low as $341, or $344 for flights within the next 24 hours.

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

April can be a great time to fly to New Haven from St. Louis with a flight ticket averaging about $308. Cheapflights users have found deals in the month of April for as cheap as $89. The most expensive prices can be found in the month of November.

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.

$260+ Cheap Flights from St. Louis to New Haven

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Cheap flight deals from St. Louis to New Haven

Round-trip from	$273 (Trip.com)
Popular in	November
Cheapest in	April
Average price	$277

From Lambert-St Louis to Tweed-New Haven

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($35 potential increase over avg. RT price).

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

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Average for round-trip flights in September 2025

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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 11, 2025.

Fri 10/37:55 pmSTL - HVN

2 stops16h 13mMultiple Airlines

Sun 10/57:30 amHVN - STL

1 stop8h 34mMultiple Airlines

Deal found 9/11

$273

Sun 9/144:00 pmSTL - HVN

2 stops44h 57mMultiple Airlines

Thu 9/187:48 pmHVN - STL

1 stop18h 14mMultiple Airlines

Deal found 9/9

$718

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 11, 2025.

Fri 10/37:55 pmSTL - HVN

2 stops16h 13mMultiple Airlines

Sun 10/57:30 amHVN - STL

1 stop8h 34mMultiple Airlines

Deal found 9/11

$273

Sun 9/144:00 pmSTL - HVN

2 stops44h 57mMultiple Airlines

Thu 9/187:48 pmHVN - STL

1 stop18h 14mMultiple Airlines

Deal found 9/9

$718

Last-minute flights from St. Louis to New Haven
Discover last-minute flight deals from St. Louis to New Haven. Data last updated September 11, 2025 and is based on user searches.

Sun 9/144:00 pmSTL - HVN

2 stops44h 57mMultiple Airlines

Thu 9/187:48 pmHVN - STL

1 stop18h 14mMultiple Airlines

Deal found 9/9

$718

Fri 10/37:55 pmSTL - HVN

2 stops16h 13mMultiple Airlines

Sun 10/57:30 amHVN - STL

1 stop8h 34mMultiple Airlines

Deal found 9/11

$273

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 11, 2025.

Tue 11/259:50 amSTL - HVN

3 stops23h 18mMultiple Airlines

Deal found 9/11

$278

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

Fri 10/3

7:55 pm-1:08 pm

2 stops16h 13m

Tweed-New Haven

Sun 10/5

7:30 am-3:04 pm

1 stop8h 34m

$273

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Sun 9/14

4:00 pm-1:57 pm

2 stops44h 57m

Tweed-New Haven

Thu 9/18

7:48 pm-1:02 pm

1 stop18h 14m

$718

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Sun 9/14

10:39 am-9:20 pm

1 stop9h 41m

$260

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Tue 11/25

9:50 am-10:08 am

3 stops23h 18m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

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.

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$260+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from St. Louis to New Haven

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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 11, 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 11, 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?

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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 11, 2025.