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$420+ Cheap flights from St. Louis to New Haven (STL - HVN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HVN
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheap flight deals from St. Louis to New Haven

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to New Haven (HVN). 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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$420
(Trip.com)

Popular in

November

Cheapest in

April

Average price

$369
Provider with most accurate pricing for Lambert-St Louis-Tweed-New Haven flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Tweed-New Haven flights.
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From Lambert-St Louis to Tweed-New Haven
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Highest demand for flights based on searches. 15% potential increase in price ($55 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 October 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 October 27, 2025.

This Trip.com deal was found by Cheapflights users on 10/26. 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.
Mon 11/107:45 pmSTL - HVN
2 stops16h 29mMultiple Airlines
Fri 11/143:35 pmHVN - STL
2 stops18h 32mMultiple Airlines
Deal found 10/26$420
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:50 amSTL - HVN
2 stops9h 00mMultiple Airlines
Mon 11/1010:25 amHVN - STL
2 stops9h 11mMultiple Airlines
Deal found 10/27$474
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/244:13 pmSTL - HVN
1 stop18h 44mMultiple Airlines
Fri 11/284:06 pmHVN - STL
2 stops32h 51mMultiple Airlines
Deal found 10/26$573

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from St. Louis to New Haven that are best for you.

Fly from

St. Louis

Fly to

New Haven

Route

Depart

Return

Price

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Mon 11/10

2:12 pm-1:57 pm

1 stop22h 45m

Tweed-New Haven

Fri 11/14

6:26 pm-3:38 pm

2 stops22h 12m

$442

St. LouisNew Haven

STL - HVN

STLHVN

Lambert-St Louis

Mon 11/24

4:13 pm-11:57 am

1 stop18h 44m

Tweed-New Haven

Fri 11/28

4:06 pm-11:57 pm

2 stops32h 51m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Compare providers for flights from St. Louis to New Haven

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to New Haven in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-New Haven flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-New Haven flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-New Haven flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-New Haven flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-New Haven flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, April is the cheapest month in which you can book a flight from St. Louis to New Haven (average of $89). Flying from St. Louis to New Haven in October is currently the most expensive (average of $208). 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 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?

    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, April is the cheapest month in which you can book a flight from St. Louis to New Haven (average of $89). Flying from St. Louis to New Haven in October is currently the most expensive (average of $208). 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
Wallingford

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