St. Louis

$262+ Cheap flights from New Haven to St. Louis (HVN - STL)

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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
HVN — STL
jul. 8 — jul. 151
We work with more than 300 partners to bring you better travel deals

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

Discover tips and strategies to find the most affordable flight options for your journey from New Haven (HVN) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 3, 2025.

Round-trip from

$496
(Trip.com)

One-way from

$262
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$332
From Tweed-New Haven to Lambert-St Louis
One-way flight from Tweed-New Haven to Lambert-St Louis
Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find flight deals from New Haven to St. Louis

Cheapest flights from New Haven to St. Louis
Explore the most affordable flight options available from New Haven to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This Trip.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/184:20 pmHVN - STL
1 stop8h 27mMultiple Airlines
mar. 7/225:40 pmSTL - HVN
1 stop24h 39mMultiple Airlines
Deal found 7/3$496

Cheapflights Fare Finder

Customize your flight search to find flights from New Haven 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, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
Use the filters below to find and compare flights from New Haven to St. Louis that are best for you.

Fly from

New Haven

Fly to

St. Louis

Route

Depart

Return

Price

New HavenSt. Louis

HVN - STL

HVNSTL

Tweed-New Haven

vie. 7/18

4:20 pm-11:47 pm

1 stop8h 27m

Lambert-St Louis

mar. 7/22

5:40 pm-7:19 pm

1 stop24h 39m

$496

New HavenSt. Louis

HVN - STL

HVNSTL

Tweed-New Haven

lun. 7/14

4:20 pm-11:47 pm

1 stop8h 27m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from New Haven 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 New Haven to St. Louis

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

Currently, August is the cheapest month in which you can book a flight from New Haven to St. Louis (average of $311). Flying from New Haven to St. Louis in March is currently the most expensive (average of $356). 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

Find useful and relevant information for your journey from New Haven to St. Louis. 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 New Haven to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from New Haven to St. Louis 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 New Haven to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from New Haven to St. Louis (average of $311). Flying from New Haven to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near New Haven?

Book flights to New Haven if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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.

Top airline flying from New Haven to St. Louis

Discover the top airline that operate flights from New Haven to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Avelo AirlinesCheapest$136Average$166FlexibilityNo cancel feeOn-timeN/A

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.