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Cheap flights from Newark Airport to St. Louis from $71

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Newark Airport to St. Louis departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Newark Airport to St. Louis

Cheap round-trip flights

Multiple Airlines Logo
5:54 am - 10:37 amEWR-STL
5h 43m1 stop
Multiple Airlines Logo
6:05 pm - 9:00 amSTL-EWR
37h 55m2 stops
$229Multiple Airlines
Find Deal
jue., oct. 9 - dom., oct. 12
Multiple Airlines Logo
5:54 am - 10:37 amEWR-STL
5h 43m1 stop
Multiple Airlines Logo
9:59 pm - 6:22 amSTL-EWR
31h 23m1 stop
$230Multiple Airlines
Find Deal
jue., oct. 16 - lun., oct. 20
United Airlines Logo
9:46 pm - 11:44 pmEWR-STL
2h 58mnonstop
United Airlines Logo
5:24 pm - 12:13 amSTL-EWR
5h 49m1 stop
$231United Airlines
Find Deal
vie., nov. 14 - dom., nov. 16
Frontier Logo
5:55 am - 3:04 pmEWR-STL
10h 09m1 stop
Frontier Logo
10:49 am - 12:34 amSTL-EWR
12h 45m2 stops
$232Frontier
Find Deal
lun., sep. 22 - jue., sep. 25
Spirit Airlines Logo
2:00 pm - 10:02 amEWR-STL
21h 02m2 stops
Spirit Airlines Logo
7:15 pm - 9:00 amSTL-EWR
12h 45m1 stop
$234Spirit Airlines
Find Deal
mié., oct. 8 - sáb., oct. 11
Delta Logo
8:05 am - 12:35 pmEWR-STL
5h 30m1 stop
Delta Logo
5:15 pm - 11:06 pmSTL-EWR
4h 51m1 stop
$239Delta
Find Deal
jue., oct. 30 - lun., nov. 3
Delta Logo
7:00 pm - 11:40 pmEWR-STL
5h 40m1 stop
Delta Logo
6:09 pm - 11:17 pmSTL-EWR
4h 08m1 stop
$247Delta
Find Deal
vie., nov. 14 - lun., nov. 17
American Airlines Logo
2:27 pm - 8:32 pmEWR-STL
7h 05m1 stop
American Airlines Logo
6:25 am - 12:40 pmSTL-EWR
5h 15m1 stop
$250American Airlines
Find Deal
sáb., oct. 4 - mar., oct. 14
Spirit Airlines Logo
6:56 pm - 9:40 amEWR-STL
15h 44m1 stop
Spirit Airlines Logo
10:57 am - 11:29 pmSTL-EWR
11h 32m1 stop
$252Spirit Airlines
Find Deal
mié., oct. 1 - dom., oct. 5
United Airlines Logo
11:30 am - 3:44 pmEWR-STL
5h 14m1 stop
United Airlines Logo
5:00 am - 10:27 amSTL-EWR
4h 27m1 stop
$261United Airlines
Find Deal
mié., oct. 15 - mié., oct. 22

Frontier flights from Newark Airport to St. Louis

Our best Frontier deals on Newark Airport to St. Louis flight tickets
Frontier
Sep 22
EWR5:55 amNewark
10h 09m
1 stop
STL3:04 pmLambert-St Louis
Sep 25
STL10:49 amLambert-St Louis
12h 45m
2 stops
EWR12:34 amNewark
$232
Find similar
Frontier
Sep 25
EWR5:55 amNewark
10h 09m
1 stop
STL3:04 pmLambert-St Louis
Sep 28
STL1:52 pmLambert-St Louis
33h 42m
2 stops
EWR12:34 amNewark
$238
Find similar
Frontier
Oct 6
EWR5:55 amNewark
10h 09m
1 stop
STL3:04 pmLambert-St Louis
Oct 16
STL10:17 amLambert-St Louis
13h 49m
2 stops
EWR1:06 amNewark
$242
Find similar

Spirit Airlines flights from Newark Airport to St. Louis

Our best Spirit Airlines deals on Newark Airport to St. Louis flight tickets
Spirit Airlines
Oct 8
EWR2:00 pmNewark
21h 02m
2 stops
STL10:02 amLambert-St Louis
Oct 11
STL7:15 pmLambert-St Louis
12h 45m
1 stop
EWR9:00 amNewark
$234
Find similar
Spirit Airlines
Oct 1
EWR6:56 pmNewark
15h 44m
1 stop
STL9:40 amLambert-St Louis
Oct 5
STL10:57 amLambert-St Louis
21h 03m
1 stop
EWR9:00 amNewark
$246
Find similar
Spirit Airlines
Oct 1
EWR6:56 pmNewark
15h 44m
1 stop
STL9:40 amLambert-St Louis
Oct 5
STL10:57 amLambert-St Louis
11h 32m
1 stop
EWR11:29 pmNewark
$252
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Newark Airport 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, momondo users made 832,500 searches. Data last updated septiembre 17, 2025.
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

Price

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

jue. 10/9

5:54 am-10:37 am

1 stop5h 43m

Lambert-St Louis

dom. 10/12

6:05 pm-9:00 am

2 stops37h 55m

$229

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

jue. 10/16

5:54 am-10:37 am

1 stop5h 43m

Lambert-St Louis

lun. 10/20

9:59 pm-6:22 am

1 stop31h 23m

$230

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

vie. 11/14

9:46 pm-11:44 pm

Nonstop2h 58m

Lambert-St Louis

dom. 11/16

5:24 pm-12:13 am

1 stop5h 49m

$231

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

lun. 9/22

5:55 am-3:04 pm

1 stop10h 09m

Lambert-St Louis

jue. 9/25

10:49 am-12:34 am

2 stops12h 45m

$232

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mié. 10/8

2:00 pm-10:02 am

2 stops21h 02m

Lambert-St Louis

sáb. 10/11

7:15 pm-9:00 am

1 stop12h 45m

$234

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

jue. 10/30

8:05 am-12:35 pm

1 stop5h 30m

Lambert-St Louis

lun. 11/3

5:15 pm-11:06 pm

1 stop4h 51m

$239

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

vie. 11/14

7:00 pm-11:40 pm

1 stop5h 40m

Lambert-St Louis

lun. 11/17

6:09 pm-11:17 pm

1 stop4h 08m

$247

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

sáb. 10/4

2:27 pm-8:32 pm

1 stop7h 05m

Lambert-St Louis

mar. 10/14

6:25 am-12:40 pm

1 stop5h 15m

$250

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mié. 10/1

6:56 pm-9:40 am

1 stop15h 44m

Lambert-St Louis

dom. 10/5

10:57 am-11:29 pm

1 stop11h 32m

$252

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mié. 10/15

11:30 am-3:44 pm

1 stop5h 14m

Lambert-St Louis

mié. 10/22

5:00 am-10:27 am

1 stop4h 27m

$261

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Newark Airport to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, January is the cheapest month to fly from Newark Airport to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $359. The month of May is another great option to travel to St. Louis, with average flight prices from Newark Airport averaging around $368.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $328. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $433. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Newark Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $346 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $383 per ticket.

What is the cheapest Newark to Lambert-St Louis flight route?

Fly from Newark to Lambert-St Louis for the best Newark - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $406 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Newark Airport for as low as $320 on momondo.

What cabin class options are available on Newark to Lambert-St Louis flights?

There are 4 cabin classes available to choose from on Newark to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Newark Airport to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Newark Airport to St. Louis.

How have Newark Airport to St. Louis flight prices changed over time?

As of September 2025, prices for Newark Airport to St. Louis flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Newark Airport to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Newark Airport to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Newark Airport to St. Louis (EWR to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Newark Airport to St. Louis

Best Price Found

$130

Fastest flight time

2h 38m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Newark Airport in the past 72 hours is $130. The best round-trip flight deal from Newark Airport to St. Louis found on momondo in the last 72 hours is $282.
The fastest flight from Newark Airport to St. Louis takes 2h 38m
Direct flights go from Newark Airport to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

  • How far is Newark to Lambert-St Louis by plane?

    Newark and Lambert-St Louis are 862.3 mi apart from one another. Flights usually cover this in 2h 58m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Newark Airport to Lambert-St Louis Airport?

    Prices for flights from Newark Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Newark Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Newark Airport to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Newark Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Newark Airport to St. Louis?

  • What is the most popular airline from Newark Airport to St. Louis?

Best airlines flying from Newark Airport to St. Louis

Compare and see reviews for airlines that fly from Newark Airport to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $152Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
7,961 reviews
Search Delta flights
United AirlinesPriceFrom $251Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • United Airlines Flights From Newark Airport to St. Louis

    The lowest priced United Airlines flight from Newark Airport to St. Louis from the last 72 hours was $251. Generally, United Airlines has 25 flights on this route every week with an average price of $428. United Airlines is rated 7.4/10 by our users.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
Edwardsville
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from New York to St. Louis?

Finding the right flight to St. Louis from New York is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from New York to St. Louis with flexible booking policies on momondo?

All flight searches from New York to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from New York to St. Louis?

Once all potential New York to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from New York to St. Louis right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of New York to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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vie. 10/17
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