STL - EWR

$111 Find Cheap Flights from St. Louis to Newark Liberty Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Newark departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$238
Typical prices: $291-$486
Frontier
Thu 8/20Mon 8/24
STL - EWR • 1 stop
Cheapest non-stop
$293
Typical prices: $295-$414
United Airlines
Mon 10/26Sat 10/31
STL - EWR • Non-stop
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 2h 35m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Atlanta (ATL)
Cheapest • Avg $336 (round-trip)
Detroit (DTW)
Shortest trip • 4h 17m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 13% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 13% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Newark!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from St. Louis to Newark (STL-EWR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Newark that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Newark

Thu, Aug 20 - Mon, Aug 24
Frontier Logo
6:17 pm - 1:03 am
STL
-
EWR
5h 46m
1 stop
Frontier Logo
5:55 am - 5:22 pm
EWR
-
STL
12h 27m
1 stop
$238Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
5:27 pm - 12:35 pm
STL
-
EWR
18h 08m
1 stop
Frontier Logo
5:55 am - 9:40 am
EWR
-
STL
28h 45m
2 stops
$238Frontier
Mon, Sep 7 - Mon, Sep 14
United Airlines Logo
7:00 am - 10:31 am
STL
-
EWR
2h 31mnonstop
United Airlines Logo
9:59 pm - 11:38 pm
EWR
-
STL
2h 39mnonstop
$293United Airlines
Wed, Oct 7 - Wed, Oct 21
United Airlines Logo
12:20 pm - 3:47 pm
STL
-
EWR
2h 27mnonstop
United Airlines Logo
9:45 am - 11:22 am
EWR
-
STL
2h 37mnonstop
$293United Airlines
Mon, Sep 14 - Sat, Sep 19
Delta Logo
6:54 pm - 1:12 am
STL
-
EWR
5h 18m
1 stop
Delta Logo
8:30 am - 12:32 pm
EWR
-
STL
5h 02m
1 stop
$313Delta
Sat, Oct 3 - Tue, Oct 6
Delta Logo
5:46 pm - 11:57 pm
STL
-
EWR
5h 11m
1 stop
Delta Logo
9:40 am - 1:53 pm
EWR
-
STL
5h 13m
1 stop
$313Delta
Mon, Dec 21 - Thu, Dec 24
American Airlines Logo
7:29 am - 1:30 pm
STL
-
EWR
5h 01m
1 stop
American Airlines Logo
5:39 am - 10:51 am
EWR
-
STL
6h 12m
1 stop
$313American Airlines
Sat, Sep 5 - Tue, Sep 8
American Airlines Logo
9:31 am - 11:59 pm
STL
-
EWR
13h 28m
1 stop
American Airlines Logo
10:42 am - 12:14 am
EWR
-
STL
14h 32m
1 stop
$313American Airlines
Fri, Aug 21 - Sun, Aug 23
Multiple Airlines Logo
6:17 pm - 1:03 am
STL
-
EWR
5h 46m
1 stop
Multiple Airlines Logo
12:16 pm - 3:28 pm
EWR
-
STL
28h 12m
2 stops
$355Multiple Airlines
Sat, Aug 22 - Mon, Aug 24
Multiple Airlines Logo
5:02 pm - 11:36 am
STL
-
EWR
17h 34m
2 stops
Multiple Airlines Logo
5:55 am - 5:22 pm
EWR
-
STL
12h 27m
1 stop
$368Multiple Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Newark flights

Get data-powered insights and trends into flights from St. Louis to Newark to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Newark Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Newark Airport departing in September.

Flight prices are below average for this route right now.

Flights to Newark Airport from St. Louis usually cost between $291 and $486 in September.
The lowest price found in the past 5 days was $220 on Frontier (Sep 14-Sep 20).

What’s the cheapest day of the week to fly from St. Louis to Newark Liberty Airport?

The average price of all round-trip flights from St. Louis to Newark Airport clicked on KAYAK for each day over the last 12 months.

For St. Louis to Newark Liberty Airport, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Newark Liberty Airport back to St. Louis, the best deals are generally found on Friday, with Monday being the most expensive.

What is the cheapest month to fly from St. Louis to Newark Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Newark Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Newark Airport is October, where tickets cost $332 (return) on average. On the other hand, the most expensive months are April and May, where the average cost of round-trip tickets is $435 and $399 respectively.

Can I save money by flying with a layover from St. Louis to Newark Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $390, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Newark Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Newark Airport, you should book around 3 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

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Expert advice

Expert advice for your flight from St. Louis to Newark

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on EWR

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more

Good to know

Low season

January

Cheapest flight

$111
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from St. Louis to Newark Liberty Airport

When to book flights from St. Louis to Newark

Are your dates flexible? Find out the best times to travel from St. Louis to Newark based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Newark Liberty Airport flights

  • What is the cheapest flight from St. Louis to Newark Airport?

    In the last 5 days, the lowest price for a flight from St. Louis to Newark Airport was $111 for a one-way ticket and $238 for a round-trip.

  • Do I need a passport to fly between St. Louis and Newark Liberty Airport?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Newark Liberty Airport?

    Delta, American Airlines, United Airlines, and Lufthansa offer inflight Wi-Fi service on the St. Louis to Newark Liberty Airport flight route.

  • Which aircraft models fly most regularly from St. Louis to Newark Liberty Airport?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the St. Louis to Newark Liberty Airport flight route.

  • Which airline alliances offer flights from St. Louis to Newark Liberty Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Newark Liberty Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from St. Louis to Newark Liberty Airport?

    There are nonstop flights from St. Louis to Newark Liberty Airport on a daily basis.

  • Which is the best airline for flights from St. Louis to Newark, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Newark are Delta and United Airlines. With an average price for the route of $354 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $391 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Newark Liberty Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Newark Liberty Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Newark Liberty Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Newark Liberty Airport from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Newark Liberty Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Newark Liberty Airport with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and EWR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Newark Liberty Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Newark Liberty Airport from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Newark Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $256 or less one-way and $391 or less round-trip.

Prefer to fly direct from St. Louis to Newark Liberty Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Newark.
Find which airlines fly direct from Lambert-St Louis Airport to Newark Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Newark

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Newark to Lambert-St Louis

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Everything you need to know for your flight from St. Louis to Newark

Information on your arrival and departure airports

St. Louis (STL)
Newark (EWR)