Cheap flights from Newark Airport to St. Louis from $55

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 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Multiple Airlines Logo
2:02 pm - 10:33 pmEWR-STL
9h 31m1 stop
Multiple Airlines Logo
3:30 pm - 4:52 pmSTL-EWR
24h 22m1 stop
$241Multiple Airlines
Find Deal
mar., dic. 9 - mié., dic. 10
American Airlines Logo
12:37 pm - 10:59 pmEWR-STL
11h 22m1 stop
American Airlines Logo
1:35 pm - 10:59 pmSTL-EWR
8h 24m1 stop
$244American Airlines
Find Deal
sáb., ene. 17 - dom., ene. 18
Multiple Airlines Logo
6:05 am - 10:33 pmEWR-STL
17h 28m1 stop
Multiple Airlines Logo
3:30 pm - 12:21 amSTL-EWR
7h 51m1 stop
$246Multiple Airlines
Find Deal
mar., dic. 2 - mié., dic. 3
Multiple Airlines Logo
7:51 am - 10:33 pmEWR-STL
15h 42m2 stops
Multiple Airlines Logo
5:11 pm - 9:01 amSTL-EWR
14h 50m1 stop
$247Multiple Airlines
Find Deal
mié., dic. 31 - sáb., ene. 10
Multiple Airlines Logo
6:05 am - 10:33 pmEWR-STL
17h 28m1 stop
Multiple Airlines Logo
12:04 pm - 1:29 amSTL-EWR
12h 25m2 stops
$248Multiple Airlines
Find Deal
mar., dic. 2 - jue., dic. 4
Frontier Logo
10:30 pm - 9:40 amEWR-STL
12h 10m1 stop
Frontier Logo
3:43 pm - 1:10 amSTL-EWR
8h 27m1 stop
$249Frontier
Find Deal
lun., dic. 29 - vie., ene. 9
United Airlines Logo
9:00 am - 10:50 amEWR-STL
2h 50mnonstop
United Airlines Logo
6:35 pm - 12:26 amSTL-EWR
4h 51m1 stop
$251United Airlines
Find Deal
mar., dic. 16 - mar., dic. 23
Multiple Airlines Logo
11:05 am - 10:33 pmEWR-STL
12h 28m1 stop
Multiple Airlines Logo
10:42 am - 9:35 pmSTL-EWR
9h 53m1 stop
$255Multiple Airlines
Find Deal
jue., dic. 18 - jue., dic. 25
Multiple Airlines Logo
6:00 am - 9:48 pmEWR-STL
16h 48m2 stops
Multiple Airlines Logo
10:47 am - 9:39 pmSTL-EWR
9h 52m1 stop
$258Multiple Airlines
Find Deal
vie., dic. 12 - lun., dic. 15
Multiple Airlines Logo
5:15 am - 9:52 amEWR-STL
5h 37m1 stop
Multiple Airlines Logo
10:40 am - 1:05 amSTL-EWR
13h 25m2 stops
$260Multiple Airlines
Find Deal
lun., dic. 15 - lun., dic. 22

Frontier flights from Newark Airport to St. Louis

Our best Frontier deals on Newark Airport to St. Louis flight tickets
Frontier
Dec 29
EWR10:30 pmNewark
12h 10m
1 stop
STL9:40 amLambert-St Louis
Jan 9
STL3:43 pmLambert-St Louis
8h 27m
1 stop
EWR1:10 amNewark
Frontier
Nov 20
EWR6:00 amNewark
9h 29m
1 stop
STL2:29 pmLambert-St Louis
Nov 23
STL3:14 pmLambert-St Louis
8h 19m
1 stop
EWR12:33 amNewark
Frontier
Dec 20
EWR10:30 pmNewark
12h 10m
1 stop
STL9:40 amLambert-St Louis
Dec 25
STL10:42 amLambert-St Louis
9h 53m
1 stop
EWR9:35 pmNewark

United Airlines flights from Newark Airport to St. Louis

Our best United Airlines deals on Newark Airport to St. Louis flight tickets
United Airlines
Dec 16
EWR9:00 amNewark
2h 50m
STL10:50 amLambert-St Louis
Dec 23
STL6:35 pmLambert-St Louis
4h 51m
1 stop
EWR12:26 amNewark
United Airlines
Feb 12
EWR9:59 pmNewark
3h 06m
STL12:05 amLambert-St Louis
Feb 17
STL7:00 amLambert-St Louis
2h 29m
EWR10:29 amNewark
United Airlines
Feb 12
EWR7:45 amNewark
5h 40m
1 stop
STL12:25 pmLambert-St Louis
Feb 17
STL7:00 amLambert-St Louis
2h 29m
EWR10:29 amNewark

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 noviembre 18, 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

mar. 12/9

2:02 pm-10:33 pm

1 stop9h 31m

Lambert-St Louis

mié. 12/10

3:30 pm-4:52 pm

1 stop24h 22m

$241

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

sáb. 1/17

12:37 pm-10:59 pm

1 stop11h 22m

Lambert-St Louis

dom. 1/18

1:35 pm-10:59 pm

1 stop8h 24m

$244

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mar. 12/2

6:05 am-10:33 pm

1 stop17h 28m

Lambert-St Louis

mié. 12/3

3:30 pm-12:21 am

1 stop7h 51m

$246

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mié. 12/31

7:51 am-10:33 pm

2 stops15h 42m

Lambert-St Louis

sáb. 1/10

5:11 pm-9:01 am

1 stop14h 50m

$247

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mar. 12/2

6:05 am-10:33 pm

1 stop17h 28m

Lambert-St Louis

jue. 12/4

12:04 pm-1:29 am

2 stops12h 25m

$248

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

lun. 12/29

10:30 pm-9:40 am

1 stop12h 10m

Lambert-St Louis

vie. 1/9

3:43 pm-1:10 am

1 stop8h 27m

$249

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

mar. 12/16

9:00 am-10:50 am

Nonstop2h 50m

Lambert-St Louis

mar. 12/23

6:35 pm-12:26 am

1 stop4h 51m

$251

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

jue. 12/18

11:05 am-10:33 pm

1 stop12h 28m

Lambert-St Louis

jue. 12/25

10:42 am-9:35 pm

1 stop9h 53m

$255

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

vie. 12/12

6:00 am-9:48 pm

2 stops16h 48m

Lambert-St Louis

lun. 12/15

10:47 am-9:39 pm

1 stop9h 52m

$258

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

lun. 12/15

5:15 am-9:52 am

1 stop5h 37m

Lambert-St Louis

lun. 12/22

10:40 am-1:05 am

2 stops13h 25m

$260

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 typical price of a round-trip flight between Newark Airport and St. Louis?

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

In general, October 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 $343. The month of January is another great option to travel to St. Louis, with average flight prices from Newark Airport averaging around $363.

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 $319. 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 $439. 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 $344 when looking at flights departing in the morning. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $377 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 $399 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 $307 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.

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

As of November 2025, prices for Newark Airport to St. Louis flights are approximately 60% 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

$148

Fastest flight time

2h 45m

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 $148. The best round-trip flight deal from Newark Airport to St. Louis found on momondo in the last 72 hours is $326.
The fastest flight from Newark Airport to St. Louis takes 2h 45m
Direct flights go from Newark Airport to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
  • 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 49m, 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
8,151 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
8,003 reviews
Search Delta flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,019 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 $245. Generally, United Airlines has 12 flights on this route every week with an average price of $418. 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
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
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.

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1 adult
jue. 12/18
jue. 12/25

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