$75 Cheap Flights from St. Louis (STL) to Newark Liberty Intl. Airport (EWR)

View $75 flight on Sun, Aug 10, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Newark Liberty Intl. Airport (EWR)

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

Prices were available within the past 7 days and start at $75 for one-way flights and $129 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Aug 7 - Thu, Aug 14
STL
St. Louis
EWR
New York
$129 Roundtrip, found 18 hours ago
$129
Roundtrip
found 18 hours ago
Select Spirit Airlines flight, departing Thu, Aug 7 from St. Louis to New York, returning Thu, Aug 14, priced at $129 found 18 hours ago
Spirit Airlines
Fri, Aug 22 - Thu, Aug 28
STL
St. Louis
EWR
New York
$149 Roundtrip, just found
$149
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Aug 22 from St. Louis to New York, returning Thu, Aug 28, priced at $149 just found
Spirit Airlines
Sat, Aug 9 - Thu, Aug 14
STL
St. Louis
EWR
New York
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, Aug 9 from St. Louis to New York, returning Thu, Aug 14, priced at $151 found 1 day ago
Spirit Airlines
Sat, Aug 9 - Sun, Aug 17
STL
St. Louis
EWR
New York
$156 Roundtrip, found 1 hour ago
$156
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sat, Aug 9 from St. Louis to New York, returning Sun, Aug 17, priced at $156 found 1 hour ago
Spirit Airlines
Sun, Aug 31 - Mon, Sep 1
STL
St. Louis
EWR
New York
$157 Roundtrip, found 12 hours ago
$157
Roundtrip
found 12 hours ago
Select Spirit Airlines flight, departing Sun, Aug 31 from St. Louis to New York, returning Mon, Sep 1, priced at $157 found 12 hours ago
Spirit Airlines
Fri, Aug 8 - Thu, Aug 14
STL
St. Louis
EWR
New York
$159 Roundtrip, found 4 hours ago
$159
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Fri, Aug 8 from St. Louis to New York, returning Thu, Aug 14, priced at $159 found 4 hours ago
United
Sat, Aug 23 - Mon, Aug 25
STL
St. Louis
EWR
New York
$168 Roundtrip, found 1 day ago
$168
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 23 from St. Louis to New York, returning Mon, Aug 25, priced at $168 found 1 day ago
American Airlines
Thu, Sep 11 - Mon, Sep 15
STL
St. Louis
EWR
New York
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Sep 11 from St. Louis to New York, returning Mon, Sep 15, priced at $217 found 1 hour ago
Delta
Thu, Sep 11 - Mon, Sep 15
STL
St. Louis
EWR
New York
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Sep 11 from St. Louis to New York, returning Mon, Sep 15, priced at $217 found 1 hour ago
Frontier Airlines
Sat, Aug 9 - Fri, Aug 29
STL
St. Louis
EWR
New York
$306 Roundtrip, just found
$306
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Aug 9 from St. Louis to New York, returning Fri, Aug 29, priced at $306 just found

Find the cheapest month to fly from St. Louis (STL) to New York (EWR)

August is typically the cheapest month to fly

From $135 - $401 per traveler.

Graph displaying average flight prices per month

Alternative airports near New York

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John F. Kennedy Intl. JFK. Average driving time to city center is 24 minutes. Flights from $331
JFK
John F. Kennedy Intl.
Average driving time to city center24 min
Flights from $331
Select flight to LaGuardia LGA. Cheapest option available. Average driving time to city center is 14 minutes. Flights from $212
LGA
LaGuardia
Cheapest
Average driving time to city center14 min
Flights from $212
Flights from St. Louis (STL) to Newark Liberty Intl. Airport (EWR)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Newark Liberty Intl. Airport
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Roundtrip price
$129
Distance
869 mi
Average flight time
3 hours 34 mins

St. Louis to Newark Liberty Intl. Airport Flights

The cheapest times to fly from St. Louis to Newark Liberty Intl. Airport

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Newark Liberty Intl. Airport are during the month of August. You can find some of the cheapest flights from St. Louis to Newark Liberty Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Newark Liberty Intl. Airport

Sunday is one of the best days to book for cheap flights from St. Louis to Newark Liberty Intl. Airport: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Newark Liberty Intl. Airport

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Newark Liberty Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $75 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Newark Liberty Intl. Airport flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Newark Liberty Intl. Airport airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR) cost?
You can land cheap return tickets from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR) starting from $193. Snag a seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving STL on August 5 2025 and touching down at EWR. The price was last updated on July 18 2025 and has not changed since.
What is the cheapest month to fly from STL to EWR?
The cheapest flights from STL to EWR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR)?
When departing from Lambert-St. Louis Intl. Airport (STL), you can get on a nonstop flight to Liberty Intl. Airport (EWR) with United Airlines.
What is the cheapest airline that flies from STL to EWR?
Currently, the cheapest airline operating one-way flights from STL to EWR is United. You can book a seat on this route from $99. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from STL on October 11 2025. Prices were last updated on July 18 2025 and have not changed since.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR)?
With an average of 3 nonstop flights departing from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR) daily, you'll be jetting off in no time.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR)?
Flights between STL and EWR tend to be busiest at 11 AM. If you'd like a more relaxed experience and potentially cheaper fares, choose a departure that's outside typical rush times.
What day of the week has the most flights from STL to EWR?
Fly on a Friday if you're after the best choice of flights from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR)?
Lambert-St. Louis Intl. Airport (STL)'s earliest flight to Liberty Intl. Airport (EWR) takes off at approximately 6:50AM UTC-6. With a travel duration of 2h 39m, you'll land at around 10:29AM UTC-5.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR)?
The average flight duration from STL to EWR is 2 hours and 37 minutes, covering a distance of 870 mi.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR)?
To arrive at Liberty Intl. Airport (EWR) on schedule, select a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Newark from Lambert-St. Louis Intl. Airport (STL)?
If you're departing on a direct flight from Lambert-St. Louis Intl. Airport (STL) to Newark, you'll come into land at either LaGuardia Airport (LGA) or Liberty Intl. Airport (EWR).
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR) last-minute?
Booking your ticket from STL to EWR right before your journey is typically more expensive. But if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to EWR flight and hotel package?
Opting for a STL to EWR flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our wide range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Liberty Intl. Airport (EWR)?
Usually, it's possible to reschedule or cancel your STL to EWR flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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