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$74+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EWR
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Newark are usually found in April or September, booked 48 days in advance, depart on a Friday or Saturday and return on a Saturday

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 August 18, 2025.

Round-trip from

$147
(Priceline)

One-way from

$74
(Priceline)

Popular in

November

Cheapest in

April

Average price

$390

Good round-trip deal

$382 or less

Good one-way deal

$185 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. 8% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This Priceline deal was found by Cheapflights users on 8/17. 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 9/184:00 pmSTL - EWR
1 stop7h 34mFrontier
Mon 9/225:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 8/17$147
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:00 pmSTL - EWR
1 stop7h 34mFrontier
Thu 9/115:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 8/17$168
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:00 pmSTL - EWR
1 stop17h 05mFrontier
Sun 9/215:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 8/18$174
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/224:00 pmSTL - EWR
1 stop7h 34mMultiple Airlines
Mon 9/295:15 amEWR - STL
1 stop10h 49mMultiple Airlines
Deal found 8/15$175
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:00 pmSTL - EWR
1 stop7h 34mFrontier
Sat 9/2011:15 amEWR - STL
1 stop28h 49mFrontier
Deal found 8/15$176
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/114:00 pmSTL - EWR
1 stop7h 34mMultiple Airlines
Mon 9/155:15 amEWR - STL
1 stop10h 49mMultiple Airlines
Deal found 8/16$177
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/214:00 pmSTL - EWR
1 stop16h 58mMultiple Airlines
Thu 9/255:55 amEWR - STL
1 stop10h 09mMultiple Airlines
Deal found 8/15$178
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/114:00 pmSTL - EWR
1 stop7h 34mFrontier
Mon 9/155:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 8/17$181
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/184:00 pmSTL - EWR
1 stop17h 05mMultiple Airlines
Sat 9/2011:59 amEWR - STL
2 stops28h 05mMultiple Airlines
Deal found 8/17$186
This FlightHub deal was found by Cheapflights users on 8/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2110:57 amSTL - EWR
1 stop11h 34mMultiple Airlines
Fri 10/245:54 amEWR - STL
1 stop5h 43mMultiple Airlines
Deal found 8/16$189
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub 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
Sun 9/285:55 amEWR - STL
1 stop10h 09mFrontier
Deal found 8/18$190

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 August 18, 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 9/4

4:00 pm-12:34 am

1 stop7h 34m

Newark

Thu 9/11

5:55 am-3:04 pm

1 stop10h 09m

$147

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 9/18

4:00 pm-12:34 am

1 stop7h 34m

Newark

Sun 9/21

5:55 am-3:04 pm

1 stop10h 09m

$147

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 9/4

4:00 pm-12:34 am

1 stop7h 34m

Newark

Mon 9/8

5:55 am-3:04 pm

1 stop10h 09m

$147

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Mon 9/22

4:00 pm-12:34 am

1 stop7h 34m

Newark

Thu 9/25

5:55 am-3:04 pm

1 stop10h 09m

$147

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Mon 9/22

4:00 pm-12:34 am

1 stop7h 34m

Newark

Mon 9/29

5:15 am-3:04 pm

1 stop10h 49m

$175

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Mon 9/22

4:00 pm-12:34 am

1 stop7h 34m

Newark

Thu 9/25

5:15 am-3:04 pm

1 stop10h 49m

$176

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 9/18

4:00 pm-12:34 am

1 stop7h 34m

Newark

Sat 9/20

11:15 am-3:04 pm

1 stop28h 49m

$176

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 9/11

4:00 pm-12:34 am

1 stop7h 34m

Newark

Mon 9/15

5:15 am-3:04 pm

1 stop10h 49m

$177

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Mon 9/15

4:00 pm-12:34 am

1 stop7h 34m

$74

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Fri 10/31

4:29 pm-12:34 am

1 stop7h 05m

$74

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 12 results
1
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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 8, 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 August 18, 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 59% versus a flight at noon.

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 August 18, 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
7,981 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,981 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
8,038 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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 1 outbound flight 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.

  • 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 $238, 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: GoJet (100%), Austrian Airlines (77%), Lufthansa (77%).

  • 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 $910, our data indicates the cheapest price to be $147. The most popular route (Lambert-St Louis - Newark), is priced around $167.

  • 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
Secaucus
Yonkers
Ronkonkoma
Mahwah
Absecon
East Rutherford
North Bergen
Staten Island
Stamford
Parsippany
New Brunswick
Carle Place
Westbury
Hoboken
East Brunswick
Avenel
Paterson

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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$129Average$185FlexibilityNo cancel feeOn-time65%
DeltaCheapest$218Average$327FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$361FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$255Average$403FlexibilityNo cancel feeOn-time69%

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