$362+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HVN
Oct 19 — Oct 261
Round-trip
1 adult, Economy
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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
Cheapest
Best
Last-minute
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 19, 2026.
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 19, 2026.
This Mytrip deal was found by Cheapflights users on 9/17. 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 10/224:30 pm -
2 stops19h 59m
Sun 10/257:00 pm -
2 stops23h 40m
Deal found 9/17![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sun 11/154:26 pm -
2 stops24h 38m
Sun 11/227:54 pm -
1 stop17h 31m
Deal found 9/15![Multiple Airlines logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 9/302:29 pm -
2 stops27h 45m
Sun 10/47:54 pm -
1 stop21h 40m
Deal found 9/15![Multiple Airlines logo]()
$541
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Sat 10/38:10 pm -
2 stops18h 49m
Wed 10/77:00 am -
1 stop7h 10m
Deal found 9/18![Multiple Airlines logo]()
$636
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Mon 9/2812:17 pm -
2 stops23h 52m
Mon 10/56:30 am -
1 stop7h 40m
Deal found 9/18![Multiple Airlines logo]()
$714
Best flights from St. Louis to New HavenDiscover 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 19, 2026.
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 19, 2026.
This Mytrip deal was found by Cheapflights users on 9/17. 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 10/224:30 pm -
2 stops19h 59m
Sun 10/257:00 pm -
2 stops23h 40m
Deal found 9/17![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sun 11/154:26 pm -
2 stops24h 38m
Sun 11/227:54 pm -
1 stop17h 31m
Deal found 9/15![Multiple Airlines logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 9/302:29 pm -
2 stops27h 45m
Sun 10/47:54 pm -
1 stop21h 40m
Deal found 9/15![Multiple Airlines logo]()
$541
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Sat 10/38:10 pm -
2 stops18h 49m
Wed 10/77:00 am -
1 stop7h 10m
Deal found 9/18![Multiple Airlines logo]()
$636
Last-minute flights from St. Louis to New HavenDiscover last-minute flight deals from St. Louis to New Haven. Data last updated September 19, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to New Haven. Data last updated September 19, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Mon 9/2812:17 pm -
2 stops23h 52m
Mon 10/56:30 am -
1 stop7h 40m
Deal found 9/18![Multiple Airlines logo]()
$714
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 9/302:29 pm -
2 stops27h 45m
Sun 10/47:54 pm -
1 stop21h 40m
Deal found 9/15![Multiple Airlines logo]()
$541
This Mytrip deal was found by Cheapflights users on 9/18. 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.
Sat 10/38:10 pm -
2 stops18h 49m
Wed 10/77:00 am -
1 stop7h 10m
Deal found 9/18![Multiple Airlines logo]()
$636
This Mytrip deal was found by Cheapflights users on 9/17. 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 10/224:30 pm -
2 stops19h 59m
Sun 10/257:00 pm -
2 stops23h 40m
Deal found 9/17![Multiple Airlines logo]()
$432
This Mytrip deal was found by Cheapflights users on 9/19. 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.
Fri 10/235:53 pm -
2 stops18h 17m
Sun 10/257:00 pm -
2 stops23h 40m
Deal found 9/19![Multiple Airlines logo]()
$362
Find 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 September 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $362 (Mytrip) |
Popular in | November |
Cheapest in | February |
Average price | $378 |
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 7,457,451 searches. Data last updated September 19, 2026.
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
Cheapest round-trip
St. LouisNew Haven
STL Lambert-St Louis - HVN Tweed-New Haven
STLHVN
Lambert-St Louis
Thu 10/22
4:30 pm-1:29 pm
2 stops19h 59m
Tweed-New Haven
Sun 10/25
7:00 pm-5:40 pm
2 stops23h 40m
$432
St. LouisNew Haven
STL Lambert-St Louis - HVN Tweed-New Haven
STLHVN
Lambert-St Louis
Sun 11/15
4:26 pm-6:04 pm
2 stops24h 38m
Tweed-New Haven
Sun 11/22
7:54 pm-12:25 pm
1 stop17h 31m
$502
St. LouisNew Haven
STL Lambert-St Louis - HVN Tweed-New Haven
STLHVN
Lambert-St Louis
Wed 9/30
2:29 pm-7:14 pm
2 stops27h 45m
Tweed-New Haven
Sun 10/4
7:54 pm-4:34 pm
1 stop21h 40m
$541
Quickest round-trip
St. LouisNew Haven
STL Lambert-St Louis - HVN Tweed-New Haven
STLHVN
Lambert-St Louis
Sat 10/3
8:10 pm-3:59 pm
2 stops18h 49m
Tweed-New Haven
Wed 10/7
7:00 am-1:10 pm
1 stop7h 10m
$636
Sorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-New Haven flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-New Haven flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
STL-HVN
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.
Related info for your journey
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