$100+ Cheap flights from Newark (EWR) to St. Louis (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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — STL
Sep 8 — Sep 151
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 October or December, booked 50 days in advance, depart on a Friday or Saturday and return on a Tuesday
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 August 9, 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 August 9, 2026.
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/311:15 am -
1 stop5h 23m
Sun 9/612:30 pm -
Nonstop2h 31m
Deal found 8/4![United Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/310:29 pm -
1 stop19h 53m
Thu 9/106:39 pm -
1 stop29h 22m
Deal found 8/7![Frontier logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/11:35 pm -
2 stops29h 15m
Tue 9/85:27 pm -
1 stop18h 08m
Deal found 8/4![Frontier logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 11/105:55 am -
2 stops17h 44m
Thu 11/1210:35 am -
1 stop13h 24m
Deal found 8/5![Frontier logo]()
$326
This Delta deal was found by Cheapflights users on 8/5. 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.
Sat 8/226:00 am -
1 stop4h 37m
Sun 8/236:00 am -
1 stop7h 14m
Deal found 8/5![Delta logo]()
$327
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:29 pm -
1 stop11h 28m
Sun 8/166:34 pm -
1 stop5h 29m
Deal found 8/4![Frontier logo]()
$328
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/49:40 am -
Nonstop2h 37m
Sun 9/612:30 pm -
Nonstop2h 31m
Deal found 8/6![United Airlines logo]()
$329
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:55 am -
1 stop11h 39m
Sun 9/205:19 pm -
1 stop6h 42m
Deal found 8/4![Frontier logo]()
$330
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/39:40 am -
Nonstop2h 37m
Mon 9/77:00 am -
Nonstop2h 31m
Deal found 8/6![United Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 8/7. 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.
Fri 12/256:30 pm -
1 stop5h 48m
Thu 12/311:30 pm -
1 stop6h 17m
Deal found 8/7![Delta logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 8/275:55 am -
2 stops11h 36m
Mon 8/316:17 pm -
1 stop26h 11m
Deal found 8/4![Frontier logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 8/2310:29 pm -
1 stop19h 53m
Tue 9/85:27 pm -
1 stop18h 08m
Deal found 8/4![Frontier logo]()
$334
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 August 9, 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 August 9, 2026.
This United Airlines deal was found by Cheapflights users on 8/7. 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 8/289:59 pm -
Nonstop2h 39m
Sun 8/307:00 am -
Nonstop2h 31m
Deal found 8/7![United Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 8/6. 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.
Wed 8/197:05 am -
1 stop5h 41m
Sat 8/225:34 pm -
1 stop5h 22m
Deal found 8/6![Delta logo]()
$400
This United Airlines deal was found by Cheapflights users on 8/4. 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 10/107:57 pm -
Nonstop2h 40m
Tue 10/137:30 am -
Nonstop2h 30m
Deal found 8/4![United Airlines logo]()
$411
This Delta deal was found by Cheapflights users on 8/8. 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 11/236:00 am -
1 stop6h 15m
Fri 11/276:00 am -
1 stop5h 30m
Deal found 8/8![Delta logo]()
$419
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/129:59 pm -
Nonstop2h 39m
Sat 9/198:20 am -
Nonstop2h 40m
Deal found 8/6![United Airlines logo]()
$411
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 8/314:55 pm -
1 stop6h 05m
Mon 9/77:00 am -
Nonstop2h 31m
Deal found 8/7![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/2310:25 am -
1 stop6h 13m
Sat 9/267:30 am -
Nonstop2h 30m
Deal found 8/7![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/177:30 am -
1 stop5h 27m
Thu 9/248:05 am -
Nonstop2h 38m
Deal found 8/4![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/289:59 pm -
Nonstop2h 39m
Mon 8/314:50 pm -
Nonstop2h 40m
Deal found 8/4![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 8/7. 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 10/97:29 pm -
Nonstop2h 40m
Mon 10/1212:20 pm -
Nonstop2h 27m
Deal found 8/7![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/267:30 am -
1 stop5h 32m
Sat 8/298:00 am -
1 stop6h 37m
Deal found 8/4![United Airlines logo]()
$431
Last-minute flights from Newark to St. LouisDiscover last-minute flight deals from Newark to St. Louis. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from Newark to St. Louis. Data last updated August 9, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:29 pm -
1 stop11h 28m
Sun 8/166:34 pm -
1 stop5h 29m
Deal found 8/4![Frontier logo]()
$328
This Delta deal was found by Cheapflights users on 8/5. 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.
Sat 8/226:00 am -
1 stop4h 37m
Sun 8/236:00 am -
1 stop7h 14m
Deal found 8/5![Delta logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 8/2310:29 pm -
1 stop19h 53m
Tue 9/85:27 pm -
1 stop18h 08m
Deal found 8/4![Frontier logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 8/275:55 am -
2 stops11h 36m
Mon 8/316:17 pm -
1 stop26h 11m
Deal found 8/4![Frontier logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/305:55 am -
1 stop12h 27m
Tue 9/15:27 pm -
1 stop18h 04m
Deal found 8/6![Frontier logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/11:35 pm -
2 stops29h 15m
Tue 9/85:27 pm -
1 stop18h 08m
Deal found 8/4![Frontier logo]()
$325
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/311:15 am -
1 stop5h 23m
Sun 9/612:30 pm -
Nonstop2h 31m
Deal found 8/4![United Airlines logo]()
$322
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/310:29 pm -
1 stop19h 53m
Thu 9/106:39 pm -
1 stop29h 22m
Deal found 8/7![Frontier logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/39:40 am -
Nonstop2h 37m
Mon 9/77:00 am -
Nonstop2h 31m
Deal found 8/6![United Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/49:40 am -
Nonstop2h 37m
Sun 9/612:30 pm -
Nonstop2h 31m
Deal found 8/6![United Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/1010:29 pm -
1 stop15h 41m
Tue 9/1512:17 pm -
2 stops21h 15m
Deal found 8/5![Frontier logo]()
$332
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:55 am -
1 stop11h 39m
Sun 9/205:19 pm -
1 stop6h 42m
Deal found 8/4![Frontier logo]()
$330
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 August 9, 2026.
Search for one-way flight options from Newark to St. Louis. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 10/75:55 am -
2 stops28h 45m
Deal found 8/7![Frontier logo]()
$100
This Trip.com deal was found by Cheapflights users on 8/6. 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.
Sun 9/2710:29 pm -
1 stop15h 41m
Deal found 8/6![Frontier logo]()
$113
This Trip.com deal was found by Cheapflights users on 8/8. 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.
Sun 10/1810:29 pm -
1 stop12h 11m
Deal found 8/8![Frontier logo]()
$114
This Travelocity deal was found by Cheapflights users on 8/6. 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 10/910:29 pm -
1 stop12h 11m
Deal found 8/6![Frontier logo]()
$115
This Jettzy deal was found by Cheapflights users on 8/7. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:55 am -
1 stop12h 27m
Deal found 8/7![Frontier logo]()
$117
This Trip.com deal was found by Cheapflights users on 8/6. 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.
Sun 10/410:29 pm -
1 stop15h 41m
Deal found 8/6![Frontier logo]()
$118
This Trip.com deal was found by Cheapflights users on 8/6. 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.
Thu 9/35:55 am -
1 stop12h 27m
Deal found 8/6![Frontier logo]()
$119
This Trip.com deal was found by Cheapflights users on 8/6. 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 9/145:55 am -
1 stop11h 39m
Deal found 8/6![Frontier logo]()
$121
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:55 am -
1 stop12h 59m
Deal found 8/4![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 stop12h 11m
Deal found 8/7![Frontier logo]()
$124
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 August 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $322 (United Airlines) |
One-way from | $100 (Kiwi.com) |
Popular in | July |
Cheapest in | October |
Average price | $439 |
Good round-trip deal | $385 or less |
Good one-way deal | $245 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 2,558,603 searches. Data last updated August 9, 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
Fri 8/28
9:59 pm-11:38 pm
Nonstop2h 39m
Lambert-St Louis
Sun 8/30
7:00 am-10:31 am
Nonstop2h 31m
$393
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Wed 8/19
7:05 am-11:46 am
1 stop5h 41m
Lambert-St Louis
Sat 8/22
5:34 pm-11:56 pm
1 stop5h 22m
$400
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Sat 10/10
7:57 pm-9:37 pm
Nonstop2h 40m
Lambert-St Louis
Tue 10/13
7:30 am-11:00 am
Nonstop2h 30m
$411
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Sat 9/12
9:59 pm-11:38 pm
Nonstop2h 39m
Lambert-St Louis
Sat 9/19
8:20 am-12:00 pm
Nonstop2h 40m
$411
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Mon 11/23
6:00 am-11:15 am
1 stop6h 15m
Lambert-St Louis
Fri 11/27
6:00 am-12:30 pm
1 stop5h 30m
$419
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Mon 8/31
4:55 pm-10:00 pm
1 stop6h 05m
Lambert-St Louis
Mon 9/7
7:00 am-10:31 am
Nonstop2h 31m
$421
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Wed 9/23
10:25 am-3:38 pm
1 stop6h 13m
Lambert-St Louis
Sat 9/26
7:30 am-11:00 am
Nonstop2h 30m
$421
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Thu 9/17
7:30 am-11:57 am
1 stop5h 27m
Lambert-St Louis
Thu 9/24
8:05 am-11:43 am
Nonstop2h 38m
$421
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Fri 8/28
9:59 pm-11:38 pm
Nonstop2h 39m
Lambert-St Louis
Mon 8/31
4:50 pm-8:30 pm
Nonstop2h 40m
$428
Quickest round-trip
NewarkSt. Louis
EWR Newark - STL Lambert-St Louis
EWRSTL
Newark
Fri 10/9
7:29 pm-9:09 pm
Nonstop2h 40m
Lambert-St Louis
Mon 10/12
12:20 pm-3:47 pm
Nonstop2h 27m
$428
Showing 1-10 of 19 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 August.
| 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 49 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, October is the cheapest month in which you can book a flight from Newark Airport to St. Louis (average of $344). Flying from Newark Airport to St. Louis in July is currently the most expensive (average of $529). 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 August 9, 2026.
It’s typically best to fly out from Newark Airport to St. Louis in the evening. Doing so could potentially save you 26% 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 August 1, 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 13% of weekly flights between Newark and St. Louis have experienced delays in the past year, with the average delay time being 161 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?
Thursday 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 13% of flights being delayed.
The best insider tips for Newark Airport to St. Louis flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Newark Airport to St. Louis trip
Our travel experts
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 August 9, 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.
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Crew
8.5
Boarding
8.1
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 locationsEdwardsville
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Newark and St. Louis flights
Browse other Newark and St. Louis flight options. Last updated on August 9, 2026.
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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 2,558,603 searches. Data last updated August 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$111 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$146 | Average$350 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$437 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$266 | Average$450 | FlexibilityNo cancel fee | On-time69% |