EWR - STL

$96 Find Cheap Flights from Newark Liberty Airport to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Newark to St. Louis departing on 6/14. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Newark to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Newark to St. Louis, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Newark to St. Louis

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Newark to St. Louis 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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Newark to St. Louis.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
9:38 pm - 11:43 pmEWR-STL
3h 05mnonstop
United Airlines Logo
5:20 pm - 8:55 pmSTL-EWR
2h 35mnonstop
$221United Airlines
Find Deal
Sun, Aug 3 - Tue, Aug 12
United Airlines Logo
9:38 pm - 11:43 pmEWR-STL
3h 05mnonstop
United Airlines Logo
8:00 am - 3:12 pmSTL-EWR
6h 12m1 stop
$231United Airlines
Find Deal
Sun, Aug 3 - Wed, Aug 13
Delta Logo
7:07 pm - 11:38 pmEWR-STL
5h 31m1 stop
Delta Logo
5:40 pm - 1:07 amSTL-EWR
6h 27m1 stop
$241Delta
Find Deal
Wed, May 28 - Wed, Jun 4
Spirit Airlines Logo
11:00 am - 5:04 pmEWR-STL
7h 04m1 stop
Spirit Airlines Logo
6:12 pm - 4:00 pmSTL-EWR
20h 48m1 stop
$254Spirit Airlines
Find Deal
Fri, Jun 13 - Fri, Jun 20
American Airlines Logo
7:30 pm - 11:51 pmEWR-STL
5h 21m1 stop
American Airlines Logo
1:59 pm - 8:27 pmSTL-EWR
5h 28m1 stop
$257American Airlines
Find Deal
Tue, May 27 - Tue, Jun 3
 Logo
5:39 pm - 9:15 amEWR-STL
16h 36m1 stop
 Logo
9:50 am - 11:04 amSTL-EWR
24h 14m2 stops
Fri, May 30 - Mon, Jun 2
 Logo
11:00 am - 5:04 pmEWR-STL
7h 04m1 stop
 Logo
2:36 pm - 12:44 amSTL-EWR
9h 08m1 stop
Thu, Jun 12 - Sun, Jun 15
Delta Logo
2:05 pm - 8:39 pmEWR-STL
7h 34m1 stop
Delta Logo
5:40 pm - 1:07 amSTL-EWR
6h 27m1 stop
$261Delta
Find Deal
Wed, Jun 4 - Fri, Jun 6
American Airlines Logo
7:35 pm - 11:54 pmEWR-STL
5h 19m1 stop
American Airlines Logo
12:50 pm - 6:38 pmSTL-EWR
4h 48m1 stop
$280American Airlines
Find Deal
Fri, Jun 13 - Fri, Jun 20
Spirit Airlines Logo
12:54 pm - 7:49 amEWR-STL
19h 55m1 stop
Spirit Airlines Logo
7:37 pm - 9:03 amSTL-EWR
12h 26m1 stop
$334Spirit Airlines
Find Deal
Sat, Jul 12 - Sun, Jul 13
Expert advice

Expert advice for your flight from Newark to St. Louis

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
EWR

Security lines at EWR can be long, so arrive early. Check current wait times on the airport's website to plan accordingly.

Read more about EWRby Stefanie Waldek
STL

Use MetroLink for easy access to St. Louis from STL. The Red Line connects the airport to downtown and other key areas.

Read more about STLby Yulia Denisyuk
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on EWR

Stefanie Waldek

Stefanie Waldek

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 Denisyuk

Yulia Denisyuk

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
Useful Info

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

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

Find cheap flights to St. Louis
Find cheap flights to St. Louis

Planning a trip from Newark to St. Louis? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

If your flying dates are flexible, you should consider flying to St. Louis on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Newark Liberty Airport to St. Louis. For your return ticket, we recommend flying on a Friday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Newark Airport to St. Louis, 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 Newark Airport to St. Louis is January, where tickets cost $359 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $462 and $435 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Newark Airport to St. Louis, 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 Newark Airport to St. Louis, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonJanuary
High seasonApril
Cheapest flight$96
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Newark Liberty Airport to St. Louis

When to book flights from Newark to St. Louis

Are your dates flexible? Find out the best times to travel from Newark to St. Louis 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 Newark Liberty Airport to St. Louis flights

  • Are there changeable ticket options on flights from Newark Liberty Airport to St. Louis with United Airlines?

    Yes, United Airlines offers several changeable ticket options. Basic Economy tickets are the most restrictive and typically do not allow changes or cancellations. Economy tickets typically allow changes for a fee plus any difference in fare. United First and United Business tickets generally allow changes for a fee plus any difference in fare but the fee may be lower than for Economy tickets, and some fare classes may allow changes without a fee.

  • What is the luggage allowance on Spirit Airlines flights from Newark Liberty Airport to St. Louis?

    Spirit offers a bare fare that does not include checked or carry-on luggage on flights from Newark Liberty Airport to St. Louis. Passengers are required to pay for any bags they want to bring on the flight, including carry-on bags. Passengers can purchase up to five checked bags per flight. Bag fees vary depending on various factors, including the time of booking and the size and weight of the bag.

  • How do I get from Lambert-St-Louis Airport (STL) to the city center?

    The MetroLink light rail system has a station at STL, and you can take it to the city center. The train runs every 20 minutes during weekdays and every 30 minutes on weekends. Additionally, the MetroBus system also operates from the airport, and you can take the #49 bus to the city center. The bus stop is located outside of Terminal 1, Door 12.

  • What services does American Airlines offer economy-class passengers on flights from Newark Liberty Airport to St. Louis?

    American Airlines offers complimentary snacks and non-alcoholic beverages to economy-class passengers on flights from Newark Liberty Airport to St. Louis. These include soft drinks, coffee, and tea. Passengers can also enjoy a variety of in-flight entertainment options, including movies, TV shows, music, games, and Wi-Fi at a fee.

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

    In the last 3 days, the lowest price for a flight from Newark Airport to St. Louis was $96 for a one-way ticket and $221 for a round-trip.

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

    A passport is not required to fly from Newark Liberty Airport to St. Louis.

  • Which airports will I be using when flying from Newark Liberty Airport to St. Louis?

    On your way to St. Louis, you’ll fly out from Newark. You’ll be landing at Lambert-St Louis.

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

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

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

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

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

    Star Alliance is the only airline alliance operating flights between Newark Liberty Airport and St. Louis.

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

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

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

    The two airlines most popular with KAYAK users for flights from Newark to St. Louis are Delta and United Airlines. With an average price for the route of $342 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $431 and an overall rating of 7.4.

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

    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 Newark Liberty Airport to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Newark Liberty Airport 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 Newark Liberty Airport to St. Louis?

    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 St. Louis with an airline and back to Newark Liberty Airport with another airline. Booking your flights between Newark Liberty Airport and STL 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 Newark Liberty Airport to St. Louis?

    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 St. Louis from Newark Liberty Airport 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 Newark Airport to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $165 or less one-way and $319 or less round-trip.
  • Connecting flights from Newark Liberty Airport (EWR) to St. Louis (STL) usually have layovers in various cities depending on the airline you opt for. Some common layovers for this route include Orlando (MCO), Detroit (DTW), Chicago (ORD), Charlotte (CLT), and Atlanta (ATL).
  • American Airlines has implemented operational improvements to reduce its carbon emissions, such as optimizing flight routes to reduce the amount of fuel consumed during flights and reducing the amount of time spent idling on the tarmac including for flights from Newark Liberty Airport (EWR) to St. Louis (STL).
  • United Airlines offers child-friendly meals for children aged two to 12 years on flights from Newark Liberty Airport (EWR) to St. Louis (STL). The airline also offers a range of films, TV shows, and games suitable for children and allows the use of FAA-approved child restraint systems, including infant car seats, during flights.
  • Delta Airlines provides various forms of assistance onboard its flights from Newark Liberty Airport (EWR) to St. Louis (STL) for passengers with reduced mobility, including help with stowing and retrieving carry-on baggage, assistance with using the lavatory, and assistance with transfers.
  • Newark Liberty International Airport (EWR) is a hub for United Airlines which offers flights from Newark Liberty Airport to St. Louis. United Airlines operates from three terminals at Newark Airport: Terminal A, Terminal B, and Terminal C.

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

Find which airlines fly direct from Newark Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

Newark to Lambert-St Louis

Monday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Tuesday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Wednesday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Thursday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Friday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Saturday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Sunday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

See more direct flights

Direct returns

Lambert-St Louis to Newark

Monday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Tuesday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Wednesday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Thursday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Friday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Saturday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

Sunday

Austrian Airlines, Lufthansa, United Airlines

Austrian Airlines, Lufthansa, +1 more

See more direct flights
See more direct flights

Top 4 airlines serving from Newark to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Newark to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Newark to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7934 reviews
7.9Comfort
8.2Boarding
7.9Entertainment
8.5Crew
7.3Food
Airline reviews

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

2.0 MediocreAnonymous, Mar 2025JFK - ATL
Read more Delta reviews

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Seats were really tight and the seat belts did not give enough slack.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

The WiFi has been awful on my last few Delta Air Lines flights.

The woman in seat 1A was allowed to bring a dachshund dog onboard. It smelled terrible and the odor wafted throughout the first class cabin. This was clearly not a service dog and should be prohibited. I paid for the highest class of service, and this was a disservice. Why is Delta allowing this? I may reconsider my future flight choices.

Only one side of the heafphone jack work. Crew was friendly and helpful.

It was reported to the passengers that Delta failed to schedule the crew properly. This error caused the pilot to show up about 30 minutes late. All in all Delta's inability to take care of this basic function resulted in about an hour delay.

Loyal Delta traveler, but last nights flight was a train wreck. Seated in 1B after multiple delays. Then we couldn’t takeoff because of an issue with the passenger that was ‘not in compliance’ and had to deplane along with the threat if they did not deplane, all the passengers would be required to do so. Finally they were escorted off, but the experience threw off the crew. Disruptive for everyone. Service was a mess, televisions didn’t work, bathroom door kept swinging open during the entire flight whenever empty …

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

leg space better than expected. two washrooms for one plane isn't enough.

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

Maybe add a seat trade app for flyers that didn’t get seats together

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

Everything good until we waited for jet bridge at SFO. Then pilot gets on speaker & said it won’t reach plane- too short, need to go to different gate. Then 5 min later, adjusted plane/jetbridge & all ok?!?

I was forced to check my carry-on backpack despite there being space - but it came out on the baggage carousel so fast it didn't even delay my pickup. Otherwise a good flight. Boarding began early (which was disadvantageous for me) but fine.

Delays from united along with Newark air space caused delays. But an average flight! Unfortunately we come to expect delays from the airlines.

The check-in process is not the best They should have agents in site to help with any problem especially a rebook. Why does one have to get on the phone when there were at least 8 agents around that could have help?! Flying is stressful as it is and having someone willing to do their customer service will ease some of the stress.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

It was so bad it will be my last. Connecting flight gate agent closed the door in my face when i told her my husband is 30 seconds away (and we were running close/late because the preceding AA flight was slightly delayed. We had to be rebooked on a non-direct flight with an overnight layover in Phoenix. This is the worst experience ever and for no fault of our own. The flight we were trying to get on would not have been late if the gate agent allowed my husband to get there. It was senseless, cruel and very upsetting. I don’t understand why we were subjected to this.

I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.

I was pleasantly surprised with an upgrade at boarding. I finally had a mostly gluten free food options and a very attentive attendant.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

Improvements in communication and empathy are absolutely necessary for American Airlines staff (top down). It’s like they are numb to the needs of their customers.

AA had a nationwide tech glitch today and after two connections snd hours of delay, I arrived 7 hours late to my destination

Flight was delayed a bit, but that was expected (and updated), so really not bad at all for the price. Could’ve used one less email asking me to upgrade my seat; otherwise no significant complaints

My experience was okay. The flight did not offer even water without a fee. Also had to pay extra for my carry on, as I was told I had to check my bag, even though it said I had the option to carry on a bag when booking. This costed me an extra $100. Would likely not fly with Spirit again.

Seats were comfortable but dont recline at all. Checkin online was easy but didnt provide a gate until last minute. Flight attendants were very unkind, not friendly and didnt go over safety procedures in case of a crash. No free snacks or beverages, not even water.

The booking was cancelled the next day. Spirit Airlines refunded Kayak cheapflay the full amount, but I was only refunded half. Costumer service is disgusting. Be careful. You can lose your money.

Spirit airlines was extremely uncomfortable. The seats were hard.. the constant up selling (from lack of food or even water to $15 for wi fi ) was annoying. Not a recommended airlines

Our experience was not a good one. Our flight got cancelled and was not given any accommodations due to the inconvenience. We lost time on our vacation due to this inconvenience

They are very particular about size of the bag. Mine is small bag and has wheels. Bag wheel edges are bit outside of the measurements bucket. They charged $99 as carryon bagage

The plane flew smoothly and the crew was polite and kind. We loved our flight!

The senior flight attendant was engaging, funny and made everyone feel at ease. She is an asset to your team.

Terrible-extreme delay with very little communication, plane was overfull, luggage was returned on baggage claim in filthy condition.

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

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