$86+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — STL
Jun 12 — Jun 191
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 90 days in advance, depart on a Wednesday or Friday and return on a Friday
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 May 13, 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 May 13, 2026.
This Mytrip deal was found by Cheapflights users on 5/12. 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 6/510:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Mon 6/84:19 pm
STL
- EWR
1 stop17h 12m
Frontier
Deal found 5/12![Frontier logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/410:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Mon 6/85:27 pm
STL
- EWR
1 stop27h 02m
Frontier
Deal found 5/12![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/25:55 am
EWR
- STL
1 stop12h 38m
Frontier
Fri 6/55:27 pm
STL
- EWR
2 stops16h 05m
Frontier
Deal found 5/12![Frontier logo]()
$241
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:30 am
EWR
- STL
1 stop13h 27m
Frontier
Sat 6/65:27 pm
STL
- EWR
1 stop6h 51m
Frontier
Deal found 5/8![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Fri 7/1710:29 pm
EWR
- STL
1 stop11h 28m
Frontier
Mon 7/204:52 pm
STL
- EWR
1 stop7h 11m
Frontier
Deal found 5/11![Frontier logo]()
$247
This Trip.com deal was found by Cheapflights users on 5/12. 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 6/111:30 am
EWR
- STL
1 stop13h 27m
Frontier
Sat 6/205:06 pm
STL
- EWR
1 stop6h 59m
Frontier
Deal found 5/12![Frontier logo]()
$249
This Frontier deal was found by Cheapflights users on 5/12. 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 6/510:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Tue 6/96:31 pm
STL
- EWR
1 stop5h 34m
Frontier
Deal found 5/12![Frontier logo]()
$250
This Trip.com deal was found by Cheapflights users on 5/11. 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 5/2711:30 am
EWR
- STL
1 stop13h 27m
Frontier
Thu 5/286:33 pm
STL
- EWR
1 stop5h 45m
Frontier
Deal found 5/11![Frontier logo]()
$251
This Trip.com deal was found by Cheapflights users on 5/12. 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 5/2711:30 am
EWR
- STL
1 stop13h 27m
Frontier
Tue 6/24:19 pm
STL
- EWR
1 stop17h 13m
Frontier
Deal found 5/12![Frontier logo]()
$254
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 May 13, 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 May 13, 2026.
This United Airlines deal was found by Cheapflights users on 5/12. 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 7/2910:17 pm
EWR
- STL
Nonstop2h 27m
United Airlines
Mon 8/35:33 pm
STL
- EWR
1 stop6h 20m
United Airlines
Deal found 5/12![United Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 5/10. 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.
Thu 5/284:29 pm
EWR
- STL
1 stop6h 09m
Delta
Sun 5/317:01 pm
STL
- EWR
1 stop4h 58m
Delta
Deal found 5/10![Delta logo]()
$375
This United Airlines deal was found by Cheapflights users on 5/10. 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 7/2910:17 pm
EWR
- STL
Nonstop2h 27m
United Airlines
Fri 7/316:01 am
STL
- EWR
Nonstop2h 29m
United Airlines
Deal found 5/10![United Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 5/10. 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 8/77:15 am
EWR
- STL
1 stop5h 56m
United Airlines
Wed 8/127:00 am
STL
- EWR
Nonstop2h 31m
United Airlines
Deal found 5/10![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 5/12. 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 5/233:28 pm
EWR
- STL
1 stop7h 10m
Delta
Wed 5/275:36 pm
STL
- EWR
1 stop5h 13m
Delta
Deal found 5/12![Delta logo]()
$381
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/2610:07 pm
EWR
- STL
Nonstop2h 29m
United Airlines
Wed 5/276:00 am
STL
- EWR
Nonstop2h 29m
United Airlines
Deal found 5/12![United Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 5/11. 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 7/210:17 pm
EWR
- STL
Nonstop2h 27m
United Airlines
Mon 7/66:01 am
STL
- EWR
Nonstop2h 29m
United Airlines
Deal found 5/11![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 5/11. 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 6/296:00 am
EWR
- STL
1 stop7h 11m
United Airlines
Sun 7/56:01 am
STL
- EWR
Nonstop2h 29m
United Airlines
Deal found 5/11![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 5/9. 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 6/2110:07 pm
EWR
- STL
Nonstop2h 28m
United Airlines
Fri 6/265:33 pm
STL
- EWR
1 stop6h 20m
United Airlines
Deal found 5/9![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 5/9. 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 6/2410:07 pm
EWR
- STL
Nonstop2h 28m
United Airlines
Sat 6/276:01 am
STL
- EWR
Nonstop2h 29m
United Airlines
Deal found 5/9![United Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 5/9. 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 9/109:59 pm
EWR
- STL
Nonstop2h 38m
United Airlines
Sat 9/127:01 am
STL
- EWR
Nonstop2h 29m
United Airlines
Deal found 5/9![United Airlines logo]()
$395
Last-minute flights from Newark to St. LouisDiscover last-minute flight deals from Newark to St. Louis. Data last updated May 13, 2026 and is based on user searches.
Discover last-minute flight deals from Newark to St. Louis. Data last updated May 13, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 5/11. 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 5/2711:30 am
EWR
- STL
1 stop13h 27m
Frontier
Thu 5/286:33 pm
STL
- EWR
1 stop5h 45m
Frontier
Deal found 5/11![Frontier logo]()
$251
This Trip.com deal was found by Cheapflights users on 5/12. 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 5/2711:30 am
EWR
- STL
1 stop13h 27m
Frontier
Tue 6/24:19 pm
STL
- EWR
1 stop17h 13m
Frontier
Deal found 5/12![Frontier logo]()
$254
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:30 am
EWR
- STL
1 stop13h 27m
Frontier
Sat 6/65:27 pm
STL
- EWR
1 stop6h 51m
Frontier
Deal found 5/8![Frontier logo]()
$244
This Trip.com deal was found by Cheapflights users on 5/12. 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 6/111:30 am
EWR
- STL
1 stop13h 27m
Frontier
Sat 6/205:06 pm
STL
- EWR
1 stop6h 59m
Frontier
Deal found 5/12![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/25:55 am
EWR
- STL
1 stop12h 38m
Frontier
Fri 6/55:27 pm
STL
- EWR
2 stops16h 05m
Frontier
Deal found 5/12![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/410:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Mon 6/85:27 pm
STL
- EWR
1 stop27h 02m
Frontier
Deal found 5/12![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/410:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Sun 6/76:33 pm
STL
- EWR
1 stop25h 56m
Frontier
Deal found 5/12![Frontier logo]()
$257
This Mytrip deal was found by Cheapflights users on 5/12. 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 6/510:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Mon 6/84:19 pm
STL
- EWR
1 stop17h 12m
Frontier
Deal found 5/12![Frontier logo]()
$239
This Frontier deal was found by Cheapflights users on 5/12. 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 6/510:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Tue 6/96:31 pm
STL
- EWR
1 stop5h 34m
Frontier
Deal found 5/12![Frontier logo]()
$250
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 May 13, 2026.
Search for one-way flight options from Newark to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 6/910:29 pm
EWR
- STL
1 stop11h 18m
Frontier
Deal found 5/9![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 6/1010:29 pm
EWR
- STL
1 stop20h 01m
Frontier
Deal found 5/9![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/310:29 pm
EWR
- STL
1 stop20h 04m
Frontier
Deal found 5/13![Frontier logo]()
$88
This Trip.com deal was found by Cheapflights users on 5/10. 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 7/710:29 pm
EWR
- STL
1 stop11h 28m
Frontier
Deal found 5/10![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 8/2610:29 pm
EWR
- STL
1 stop20h 01m
Frontier
Deal found 5/10![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 5/9. 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 6/165:58 am
EWR
- STL
1 stop12h 32m
Frontier
Deal found 5/9![Frontier logo]()
$105
This Orbitz deal was found by Cheapflights users on 5/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:30 am
EWR
- STL
1 stop13h 27m
Frontier
Deal found 5/11![Frontier logo]()
$111
This Trip.com deal was found by Cheapflights users on 5/12. 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 5/2610:29 pm
EWR
- STL
1 stop11h 26m
Frontier
Deal found 5/12![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 6/1110:29 pm
EWR
- STL
1 stop11h 23m
Frontier
Deal found 5/9![Frontier logo]()
$115
This Trip.com deal was found by Cheapflights users on 5/12. 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 6/1510:29 pm
EWR
- STL
1 stop20h 01m
Frontier
Deal found 5/12![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 5/9. 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.
Sat 6/610:29 pm
EWR
- STL
1 stop20h 04m
Frontier
Deal found 5/9![Frontier logo]()
$117
This Trip.com deal was found by Cheapflights users on 5/11. 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 6/811:30 am
EWR
- STL
1 stop13h 27m
Frontier
Deal found 5/11![Frontier logo]()
$118
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 May 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Mytrip) |
One-way from | $86 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $434 |
Good round-trip deal | $440 or less |
Good one-way deal | $221 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 May 13, 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 - STL
EWRSTL
Newark
Wed 7/29
10:17 pm-11:44 pm
Nonstop2h 27m
Lambert-St Louis
Mon 8/3
5:33 pm-12:53 am
1 stop6h 20m
$314
Quickest round-trip
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Wed 7/29
10:17 pm-11:44 pm
Nonstop2h 27m
Lambert-St Louis
Fri 7/31
6:01 am-9:30 am
Nonstop2h 29m
$331
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Fri 8/7
7:15 am-12:11 pm
1 stop5h 56m
Lambert-St Louis
Wed 8/12
7:00 am-10:31 am
Nonstop2h 31m
$341
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Tue 5/26
10:07 pm-11:36 pm
Nonstop2h 29m
Lambert-St Louis
Wed 5/27
6:00 am-9:29 am
Nonstop2h 29m
$361
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Thu 7/2
10:17 pm-11:44 pm
Nonstop2h 27m
Lambert-St Louis
Mon 7/6
6:01 am-9:30 am
Nonstop2h 29m
$369
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Thu 5/28
4:29 pm-9:38 pm
1 stop6h 09m
Lambert-St Louis
Sun 5/31
7:01 pm-12:59 am
1 stop4h 58m
$375
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Mon 6/29
6:00 am-12:11 pm
1 stop7h 11m
Lambert-St Louis
Sun 7/5
6:01 am-9:30 am
Nonstop2h 29m
$379
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Sun 6/21
10:07 pm-11:35 pm
Nonstop2h 28m
Lambert-St Louis
Fri 6/26
5:33 pm-12:53 am
1 stop6h 20m
$379
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Sat 5/23
3:28 pm-9:38 pm
1 stop7h 10m
Lambert-St Louis
Wed 5/27
5:36 pm-11:49 pm
1 stop5h 13m
$381
NewarkSt. Louis
EWR - STL
EWRSTL
Newark
Wed 6/24
10:07 pm-11:35 pm
Nonstop2h 28m
Lambert-St Louis
Sat 6/27
6:01 am-9:30 am
Nonstop2h 29m
$386
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 May.
| 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 Accuracy2 stars | Trust Score*3 stars | |
| 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
Airlines
Delays
How far ahead should I book a flight from Newark Airport to St. Louis?
Booking 89 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 $343). Flying from Newark Airport to St. Louis in March is currently the most expensive (average of $507). 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 May 13, 2026.
It’s typically best to fly out from Newark Airport to St. Louis in the evening. Doing so could potentially save you 23% 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 May 9, 2026.
Travelers seeking maximum savings on their Newark Airport to St. Louis flight should consider departing on Thursday evenings 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 174 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?
Monday tends to have the lowest number of delays on this route, whereas Thursday 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
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 May 13, 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.
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.9
Boarding
8.1
Comfort
7.8
Food
7.2
Entertainment
7.8
Crew
8.5
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
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Newark and St. Louis flights
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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 May 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$146 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$192 | Average$396 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$253 | Average$432 | FlexibilityNo cancel fee | On-time69% |