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$71+ Cheap flights from St. Louis (STL) to Newark (EWR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EWR
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Newark are usually found in September or April, booked 48 days in advance, depart on a Friday or Saturday and return on a Thursday

Cheap flight deals from St. Louis to Newark

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Newark (EWR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$144
(Priceline)

One-way from

$71
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$342

Good round-trip deal

$311 or less

Good one-way deal

$182 or less
From Lambert-St Louis to Newark
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One-way flight from Lambert-St Louis to Newark
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Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Newark.
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Price to beat on a one-way flight from Lambert-St Louis to Newark.
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Find flight deals from St. Louis to Newark

Cheapest flights from St. Louis to Newark
Explore the most affordable flight options available from St. Louis to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Priceline deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/24:00 pmSTL - EWR
1 stop8h 06mFrontier
Sun 10/55:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 9/10$144
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:00 pmSTL - EWR
1 stop7h 34mFrontier
Mon 9/295:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 9/11$154
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:00 pmSTL - EWR
1 stop7h 34mFrontier
Mon 10/65:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 9/11$155
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:00 pmSTL - EWR
1 stop7h 34mFrontier
Sun 9/285:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 9/10$166
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/24:00 pmSTL - EWR
1 stop8h 06mFrontier
Wed 10/811:26 amEWR - STL
1 stop24h 11mFrontier
Deal found 9/10$167
This Priceline deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:57 amSTL - EWR
1 stop8h 03mMultiple Airlines
Thu 10/165:54 amEWR - STL
1 stop5h 43mMultiple Airlines
Deal found 9/10$170
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:00 amSTL - EWR
1 stop4h 27mUnited Airlines
Wed 10/2210:00 pmEWR - STL
Nonstop2h 57mUnited Airlines
Deal found 9/10$171
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:00 amSTL - EWR
Nonstop2h 39mUnited Airlines
Tue 10/212:29 pmEWR - STL
Nonstop2h 38mUnited Airlines
Deal found 9/10$173
This Priceline deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/284:00 pmSTL - EWR
1 stop7h 34mFrontier
Mon 9/295:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 9/10$176
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:00 amSTL - EWR
Nonstop2h 39mUnited Airlines
Wed 10/1510:00 pmEWR - STL
Nonstop2h 57mUnited Airlines
Deal found 9/10$177
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/84:42 pmSTL - EWR
1 stop4h 48mAmerican Airlines
Tue 11/118:29 amEWR - STL
1 stop5h 45mAmerican Airlines
Deal found 9/10$179
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/225:00 amSTL - EWR
1 stop4h 27mUnited Airlines
Wed 10/2911:35 amEWR - STL
1 stop5h 14mUnited Airlines
Deal found 9/9$181

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Newark 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from St. Louis to Newark Airport that are best for you.

Fly from

St. Louis

Fly to

Newark

Route

Depart

Return

Price

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 10/2

4:00 pm-1:06 am

1 stop8h 06m

Newark

Sun 10/5

5:55 am-3:04 pm

1 stop10h 09m

$144

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 10/2

5:00 am-10:27 am

1 stop4h 27m

Newark

Sat 10/4

9:50 pm-11:47 pm

Nonstop2h 57m

$193

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 10/16

10:57 am-8:00 pm

1 stop8h 03m

Newark

Sun 10/19

5:54 am-10:37 am

1 stop5h 43m

$202

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 10/2

6:01 am-12:10 pm

1 stop5h 09m

Newark

Tue 10/7

7:05 am-12:35 pm

1 stop6h 30m

$214

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Sun 11/16

7:00 am-10:29 am

Nonstop2h 29m

Newark

Tue 11/18

9:00 am-10:52 am

Nonstop2h 52m

$215

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Fri 10/3

7:55 pm-10:31 am

2 stops13h 36m

Newark

Mon 10/6

5:55 am-8:37 pm

2 stops15h 42m

$238

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Fri 10/17

6:05 pm-10:31 am

2 stops15h 26m

Newark

Sun 10/19

5:54 am-10:37 am

1 stop5h 43m

$240

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Fri 10/17

11:32 am-10:00 am

1 stop21h 28m

Newark

Sun 10/19

5:54 am-10:37 am

1 stop5h 43m

$244

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Tue 11/4

7:00 am-10:29 am

Nonstop2h 29m

Newark

Sat 11/8

6:00 am-10:51 am

1 stop5h 51m

$246

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Tue 10/28

7:00 am-10:29 am

Nonstop2h 29m

Newark

Thu 10/30

9:00 am-10:52 am

Nonstop2h 52m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 22 results
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The best insider tips for St. Louis to Newark Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Newark Airport trip
Airports
STL

Security lines at STL are straightforward, averaging 5-10 minutes off-peak. Check real-time wait times online before heading to the airport.

Read more about STLby Taryn White
EWR

For a quick trip to NYC, take the AirTrain to Airport Station, then NJ Transit to New York Penn Station, usually under 45 minutes.

Read more about EWRby Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on EWR

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Best time to book a flight from St. Louis to Newark

Have a flexible travel schedule? Discover the best time to fly to Newark from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Newark. Price data was last updated on August 29, 2025.

Booking 48 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Newark Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from St. Louis to Newark Airport?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Newark Airport (average of $228). Flying from St. Louis to Newark Airport in June is currently the most expensive (average of $301). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to EWR?

Find hourly flight availability from St. Louis to Newark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from St. Louis to Newark Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 64% versus a flight at noon.

How much does it cost to fly round-trip from St. Louis to Newark Airport?

Reviews of airlines servicing Newark

Get insights into the airlines that provide service to Newark. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Newark. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from St. Louis to Newark Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Spirit Airlines
6.3
Okay
8,023 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Newark. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Newark?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Newark. You should not have trouble finding flights to Newark from Lambert-St Louis; the airport handles an average of 5 outbound flights to Newark per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the St. Louis airport to Newark. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • How popular is this St. Louis to Newark Airport flight route?

    This flight path from Lambert-St Louis to Newark was viewed by 17 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from St. Louis to Newark Airport?

    Departing from St. Louis to Newark Airport will take you 4h 27m. The distance between St. Louis and Newark Airport is about 869 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from St. Louis to Newark Airport round-trip?

    Currently priced at $129, Spirit Airlines will fly you from St. Louis to Newark Airport and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $218 and $224, respectively. Spirit Airlines is 66% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from St. Louis to Newark Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from St. Louis to Newark Airport on time: Austrian Airlines (82%), Lufthansa (82%), United Airlines (72%).

  • What are the cheapest flights from St. Louis to Newark Airport?

    Looking for the cheapest flight from St. Louis to Newark Airport? While on average our users pay $1,025, our data indicates the cheapest price to be $118. The most popular route (Lambert-St Louis - Newark), is priced around $159.

  • Can I find deals for flights from St. Louis to Newark that include hotel bookings?

    Yes. In addition to deals on St. Louis to Newark flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Newark?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Newark.

  • Can I find deals for business class flights from St. Louis to Newark?

    Yes. Cheapflights offers flight deals from St. Louis to Newark by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Newark Airport (average of $228). Flying from St. Louis to Newark Airport in June is currently the most expensive (average of $301). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Newark Airport?

Book flights to Newark Airport if you plan to visit one of these locations
Queens
Bronx
Elizabeth
Mahwah
Secaucus
Yonkers
Ronkonkoma
East Rutherford
North Bergen
Staten Island
Stamford
New Brunswick
Absecon
Carle Place
East Brunswick
Hoboken
Westbury
Avenel
Paterson
Fort Lee

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from St. Louis to Newark

Discover the top 4 airlines that operate flights from St. Louis to Newark. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$129Average$185FlexibilityNo cancel feeOn-time65%
DeltaCheapest$218Average$328FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$224Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$262Average$406FlexibilityNo cancel feeOn-time69%

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