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$52+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — EWR
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Newark are usually found in August or October, booked 63 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap 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 December 4, 2025.

This Expedia deal was found by Cheapflights users on 12/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1510:47 amSTL - EWR
1 stop9h 48mFrontier
Wed 12/1710:30 pmEWR - STL
1 stop12h 10mFrontier
Deal found 12/2$172
This Frontier deal was found by Cheapflights users on 12/2. 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.
Sun 12/1410:42 amSTL - EWR
1 stop9h 53mFrontier
Wed 12/1710:30 pmEWR - STL
1 stop12h 10mFrontier
Deal found 12/2$187
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Tue 12/93:30 pmSTL - EWR
1 stop20h 37mMultiple Airlines
Tue 12/165:59 amEWR - STL
2 stops17h 34mMultiple Airlines
Deal found 12/2$192
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Tue 12/93:30 pmSTL - EWR
1 stop20h 37mMultiple Airlines
Thu 12/112:02 pmEWR - STL
1 stop9h 31mMultiple Airlines
Deal found 12/2$204
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/1510:47 amSTL - EWR
1 stop20h 01mMultiple Airlines
Wed 12/175:15 amEWR - STL
2 stops18h 18mMultiple Airlines
Deal found 12/2$209
This Frontier deal was found by Cheapflights users on 12/3. 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 12/1810:42 amSTL - EWR
1 stop9h 53mFrontier
Wed 12/3110:30 pmEWR - STL
1 stop12h 10mFrontier
Deal found 12/3$214
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/143:30 pmSTL - EWR
2 stops27h 08mMultiple Airlines
Tue 12/162:02 pmEWR - STL
1 stop9h 31mMultiple Airlines
Deal found 12/2$216
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Wed 12/103:30 pmSTL - EWR
2 stops8h 40mFrontier
Sun 12/145:59 amEWR - STL
1 stop28h 53mFrontier
Deal found 12/2$218
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
Tue 12/163:30 pmSTL - EWR
1 stop29h 15mMultiple Airlines
Mon 1/55:41 pmEWR - STL
1 stop29h 52mMultiple Airlines
Deal found 12/3$220
This Frontier deal was found by Cheapflights users on 12/1. 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 12/1810:42 amSTL - EWR
1 stop9h 53mFrontier
Fri 1/95:59 amEWR - STL
1 stop9h 49mFrontier
Deal found 12/1$222

Find 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 December 4, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$117
(Kiwi.com)

One-way from

$52
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$444

Good round-trip deal

$394 or less

Good one-way deal

$188 or less
Provider with most accurate pricing for Lambert-St Louis-Newark flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Newark flights.
Search Deals
From Lambert-St Louis to Newark
Search Deals
One-way flight from Lambert-St Louis to Newark
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Lambert-St Louis to Newark.
Search Deals
Price to beat on a one-way flight from Lambert-St Louis to Newark.
Search Deals

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 December 4, 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

Mon 2/2

3:11 pm-9:26 pm

1 stop5h 15m

Newark

Tue 2/3

3:16 pm-5:18 pm

Nonstop3h 02m

$190

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Wed 1/28

8:05 am-2:08 pm

1 stop5h 03m

Newark

Sat 1/31

3:23 pm-5:25 pm

Nonstop3h 02m

$201

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 1/22

11:22 am-2:58 pm

Nonstop2h 36m

Newark

Thu 2/5

8:35 am-10:41 am

Nonstop3h 06m

$205

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Wed 1/21

5:59 pm-9:43 pm

Nonstop2h 44m

Newark

Wed 2/4

9:57 pm-11:59 pm

Nonstop3h 02m

$225

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Wed 1/21

5:59 pm-9:43 pm

Nonstop2h 44m

Newark

Tue 2/3

9:57 pm-11:59 pm

Nonstop3h 02m

$225

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Thu 1/1

7:00 am-10:34 am

Nonstop2h 34m

Newark

Tue 1/6

6:00 am-12:37 pm

1 stop7h 37m

$239

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Tue 1/20

11:22 am-2:58 pm

Nonstop2h 36m

Newark

Fri 2/6

6:27 pm-10:58 pm

1 stop5h 31m

$267

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Sun 1/4

5:13 pm-11:11 pm

1 stop4h 58m

Newark

Thu 1/8

6:00 am-11:02 am

1 stop6h 02m

$269

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Wed 12/24

6:30 am-12:21 pm

1 stop4h 51m

Newark

Thu 1/8

3:16 pm-5:18 pm

Nonstop3h 02m

$275

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Mon 1/12

7:00 am-10:37 am

Nonstop2h 37m

Newark

Thu 1/15

9:57 pm-11:59 pm

Nonstop3h 02m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 20 results
1
2

Compare providers for flights from St. Louis to Newark

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Newark in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Newark Airport flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on St. Louis-Newark Airport flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from St. Louis-Newark Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Newark Airport flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Newark Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 November 28, 2025.

Booking 63 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, August is the cheapest month in which you can book a flight from St. Louis to Newark Airport (average of $129). Flying from St. Louis to Newark Airport in March is currently the most expensive (average of $267). 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 December 4, 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 68% versus a flight at noon.

The best insider tips for St. Louis to Newark Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
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

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 December 4, 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
7.9
Good
8,011 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.1

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
9,066 reviews
Delta
7.9
Good
8,011 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.1

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
11,047 reviews
Delta
7.9
Good
8,011 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.1

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
8,157 reviews
Delta
7.9
Good
8,011 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.1

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 5h 15m. The distance between St. Louis and Newark Airport is about 869 mi.

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

    Currently priced at $73, 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 $207 and $241, respectively. Spirit Airlines is 80% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Newark Airport one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $72. Users have also found prices from $85 and $114 on Spirit Airlines and Delta, respectively.

  • 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: Republic Airways (70%), Lufthansa (70%), United Airlines (63%).

  • 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 $426, our data indicates the cheapest price to be $153. The most popular route (Lambert-St Louis - Newark), is priced around $155.

  • 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, August is the cheapest month in which you can book a flight from St. Louis to Newark Airport (average of $129). Flying from St. Louis to Newark Airport in March is currently the most expensive (average of $267). 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
East Rutherford
Mahwah
Bethlehem
Yonkers
Elizabeth
Secaucus
North Bergen
Ronkonkoma
Stamford
Staten Island
Edgewater
Seaside Heights
Absecon
Carle Place
Parsippany
New Brunswick
Mount Laurel
Carlstadt

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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$73Average$162FlexibilityNo cancel feeOn-time65%
DeltaCheapest$230Average$329FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$241Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$255Average$385FlexibilityNo cancel feeOn-time69%

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