$57+ Cheap flights from Newark (EWR) to St. Louis (STL)
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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — STL
Oct 23 — Oct 301
Round-trip
1 adult, Economy
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Find cheap flights from Newark 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.Cheapflights Tip: The best prices from Newark to Lambert-St Louis are usually found in December or October, booked 67 days in advance, depart on a Friday or Saturday and return on a Thursday
Cheap flight deals from Newark to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Newark to St. LouisExplore the most affordable flight options available from Newark to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
Explore the most affordable flight options available from Newark to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 23, 2026.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
1 stop18h 16m
Thu 11/124:26 pm -
1 stop6h 37m
Deal found 9/18![Frontier logo]()
$316
This Mytrip deal was found by Cheapflights users on 9/22. 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 10/1510:29 pm -
2 stops25h 44m
Mon 10/196:35 pm -
2 stops29h 27m
Deal found 9/22![Frontier logo]()
$318
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:29 pm -
Nonstop2h 40m
Mon 10/197:30 am -
Nonstop2h 30m
Deal found 9/18![United Airlines logo]()
$319
This Travelocity deal was found by Cheapflights users on 9/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:30 am -
1 stop13h 29m
Sun 11/225:59 pm -
1 stop26h 30m
Deal found 9/20![Frontier logo]()
$320
This Mytrip deal was found by Cheapflights users on 9/22. 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 10/1510:29 pm -
2 stops25h 44m
Mon 10/266:35 pm -
2 stops28h 28m
Deal found 9/22![Frontier logo]()
$322
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:29 pm -
1 stop20h 11m
Mon 10/126:35 pm -
1 stop14h 58m
Deal found 9/19![Frontier logo]()
$323
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.
Fri 10/1611:30 am -
2 stops12h 43m
Mon 10/196:35 pm -
2 stops29h 27m
Deal found 9/18![Frontier logo]()
$324
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 am -
Nonstop2h 48m
Sat 10/244:50 pm -
Nonstop2h 40m
Deal found 9/17![United Airlines logo]()
$325
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:30 am -
1 stop13h 29m
Mon 11/305:59 pm -
1 stop26h 30m
Deal found 9/18![Frontier logo]()
$326
This Super.com deal was found by Cheapflights users on 9/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:35 am -
1 stop7h 05m
Sun 11/154:26 pm -
1 stop6h 37m
Deal found 9/20![Frontier logo]()
$327
This Mytrip deal was found by Cheapflights users on 9/20. 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 11/510:14 pm -
2 stops14h 05m
Wed 11/116:44 pm -
1 stop14h 52m
Deal found 9/20![Frontier logo]()
$330
Best flights from Newark to St. LouisDiscover carefully curated flight deals from Newark to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
Discover carefully curated flight deals from Newark to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 23, 2026.
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:29 pm -
Nonstop2h 40m
Wed 10/217:30 am -
Nonstop2h 30m
Deal found 9/20![United Airlines logo]()
$393
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:55 am -
2 stops36h 03m
Sat 10/244:30 pm -
1 stop6h 59m
Deal found 9/17![Frontier logo]()
$454
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:15 am -
1 stop4h 38m
Thu 12/313:25 pm -
1 stop7h 11m
Deal found 9/17![Delta logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
Nonstop2h 48m
Tue 10/207:30 am -
Nonstop2h 30m
Deal found 9/22![United Airlines logo]()
$393
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:22 pm -
Nonstop2h 55m
Sat 10/3111:28 am -
Nonstop2h 31m
Deal found 9/18![United Airlines logo]()
$393
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:00 am -
Nonstop2h 48m
Sat 10/247:30 am -
Nonstop2h 30m
Deal found 9/17![United Airlines logo]()
$422
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:00 am -
Nonstop2h 48m
Sun 11/16:00 am -
Nonstop2h 21m
Deal found 9/17![United Airlines logo]()
$422
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:22 am -
1 stop6h 21m
Tue 10/137:30 am -
Nonstop2h 30m
Deal found 9/17![United Airlines logo]()
$451
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:45 am -
Nonstop2h 37m
Mon 10/127:30 am -
Nonstop2h 30m
Deal found 9/18![United Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:59 am -
Nonstop2h 53m
Mon 11/306:50 pm -
1 stop5h 09m
Deal found 9/20![United Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:00 am -
1 stop7h 43m
Sun 11/16:00 am -
Nonstop2h 21m
Deal found 9/22![United Airlines logo]()
$475
Last-minute flights from Newark to St. LouisDiscover last-minute flight deals from Newark to St. Louis. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Newark to St. Louis. Data last updated September 23, 2026 and is based on user searches.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:29 pm -
1 stop20h 11m
Mon 10/126:35 pm -
1 stop14h 58m
Deal found 9/19![Frontier logo]()
$323
This Mytrip deal was found by Cheapflights users on 9/22. 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 10/105:55 am -
1 stop18h 18m
Wed 10/146:35 pm -
1 stop14h 58m
Deal found 9/22![Frontier logo]()
$337
This Mytrip deal was found by Cheapflights users on 9/22. 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 10/1510:29 pm -
2 stops25h 44m
Mon 10/196:35 pm -
2 stops29h 27m
Deal found 9/22![Frontier logo]()
$318
This Mytrip deal was found by Cheapflights users on 9/22. 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 10/1510:29 pm -
2 stops25h 44m
Mon 10/266:35 pm -
2 stops28h 28m
Deal found 9/22![Frontier logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Thu 10/1510:29 pm -
1 stop20h 11m
Sat 10/244:30 pm -
1 stop6h 59m
Deal found 9/21![Frontier logo]()
$333
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:29 pm -
Nonstop2h 40m
Mon 10/197:30 am -
Nonstop2h 30m
Deal found 9/18![United Airlines logo]()
$319
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.
Fri 10/1611:30 am -
2 stops12h 43m
Mon 10/196:35 pm -
2 stops29h 27m
Deal found 9/18![Frontier logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:29 pm -
Nonstop2h 40m
Tue 10/201:29 pm -
1 stop5h 01m
Deal found 9/22![United Airlines logo]()
$329
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 am -
Nonstop2h 48m
Sat 10/244:50 pm -
Nonstop2h 40m
Deal found 9/17![United Airlines logo]()
$325
One-way flights from Newark to St. LouisSearch for one-way flight options from Newark to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
Search for one-way flight options from Newark to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This Trip.com deal was found by Cheapflights users on 9/20. 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.
Wed 11/1811:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Tue 10/2710:14 pm -
1 stop20h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$60
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2811:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$69
This Jetabroad 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$70
This Super.com deal was found by Cheapflights users on 9/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:35 am -
1 stop7h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$73
This Trip.com deal was found by Cheapflights users on 9/21. 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.
Tue 10/2010:29 pm -
1 stop20h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$76
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:05 am -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$78
This Cheapflightsfares deal was found by Cheapflights users on 9/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:05 am -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Tue 11/1710:14 pm -
1 stop20h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$82
Find flight deals from Newark to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) 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 September 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (Cheapflightsfares) |
One-way from | $57 (Trip.com) |
Popular in | July |
Cheapest in | December |
Average price | $408 |
Good round-trip deal | $383 or less |
Good one-way deal | $199 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Newark 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 7,457,451 searches. Data last updated September 23, 2026.
Use the filters below to find and compare flights from Newark Airport to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Wed 11/11
11:35 am-5:40 pm
1 stop7h 05m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$70
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Wed 10/28
11:35 am-5:40 pm
1 stop7h 05m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$87
Quickest round-trip
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Wed 10/21
9:45 am-11:22 am
Nonstop2h 37m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$147
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Sat 10/31
6:00 am-9:49 am
1 stop4h 49m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$157
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Sat 11/7
7:15 am-1:20 pm
1 stop7h 05m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$157
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Tue 11/3
7:59 pm-9:52 pm
Nonstop2h 53m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$163
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Fri 11/6
11:35 am-5:40 pm
1 stop7h 05m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$165
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Mon 11/2
7:59 pm-9:52 pm
Nonstop2h 53m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$197
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Sat 11/7
7:00 am-9:03 am
Nonstop3h 03m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$197
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Thu 11/12
8:45 am-10:48 am
Nonstop3h 03m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$197
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Newark to St. Louis
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 Newark to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Newark Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Newark Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Newark Airport-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Newark Airport-St. Louis 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 Newark Airport-St. Louis 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 Newark to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Newark with our price prediction graph.
EWR-STL
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 Newark Airport to St. Louis
Prices
Delays
How far ahead should I book a flight from Newark Airport to St. Louis?
Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from Newark Airport to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Newark Airport to St. Louis?
Currently, December is the cheapest month in which you can book a flight from Newark Airport to St. Louis (average of $382). Flying from Newark Airport to St. Louis in July is currently the most expensive (average of $543). 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.
What is the cheapest time of day to fly from EWR to STL?
Find hourly flight availability from Newark to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 23, 2026.
It’s typically best to fly out from Newark Airport to St. Louis in the evening. Doing so could potentially save you 27% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Newark Airport to St. Louis?
Use this chart to determine the cheapest time to fly round-trip from Newark to St. Louis. Price data was last updated on September 19, 2026.
Travelers seeking maximum savings on their Newark Airport to St. Louis flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Newark to St. Louis delayed?
About 14% of weekly flights between Newark and St. Louis have experienced delays in the past year, with the average delay time being 150 minutes.
What is the most punctual flight time for Newark to St. Louis flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Newark to St. Louis flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 14% of flights being delayed.
The best insider tips for Newark Airport to St. Louis flights
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Cheapflights partnered with top experts to bring you the best recommendations for your Newark Airport to St. Louis trip
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Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 23, 2026.
Read through reviews of airlines operating flights from Newark Airport to St. Louis, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Related info for your journey
Find useful and relevant information for your journey from Newark to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Collinsville
Edwardsville
Glencoe
Chesterfield
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Top 4 airlines flying from Newark to St. Louis
Discover the top 4 airlines that operate flights from Newark 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$396 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$293 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$305 | Average$437 | FlexibilityNo cancel fee | On-time71% |