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

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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — STL
Oct 29 — Nov 51
Wed 10/29
Wed 11/5
1 adult, Economy
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Cheapflights Tip: The best prices from Newark to Lambert-St Louis are usually found in January or May, booked 70 days in advance, depart on a Wednesday or Saturday and return on a Friday

Cheap flight deals from Newark to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to St. Louis (STL). 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 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$230
(Kiwi.com)

One-way from

$71
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$411

Good round-trip deal

$272 or less

Good one-way deal

$130 or less
Provider with most accurate pricing for Newark-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Newark-Lambert-St Louis flights.
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From Newark to Lambert-St Louis
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One-way flight from Newark to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
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
Search Deals
Price to beat on a round-trip flight from Newark to Lambert-St Louis.
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Price to beat on a one-way flight from Newark to Lambert-St Louis.
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Find flight deals from Newark to St. Louis

Cheapest flights from Newark to St. Louis
Explore the most affordable flight options available from Newark to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/28. 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.
Fri 12/125:30 pmEWR - STL
1 stop21h 23mSpirit Airlines
Sun 12/1412:20 pmSTL - EWR
1 stop11h 36mSpirit Airlines
Deal found 9/28$230
This Orbitz deal was found by Cheapflights users on 9/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:54 amEWR - STL
1 stop5h 43mMultiple Airlines
Sat 10/117:15 pmSTL - EWR
1 stop12h 45mMultiple Airlines
Deal found 9/28$231
This Booking.com deal was found by Cheapflights users on 9/28. 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.
Fri 10/245:54 amEWR - STL
1 stop5h 22mFrontier
Sun 10/2611:32 amSTL - EWR
1 stop21h 59mFrontier
Deal found 9/28$233
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/25:55 amEWR - STL
1 stop10h 09mMultiple Airlines
Sun 10/51:57 pmSTL - EWR
2 stops43h 01mMultiple Airlines
Deal found 9/26$234
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/811:26 amEWR - STL
1 stop24h 11mFrontier
Sun 10/126:05 pmSTL - EWR
2 stops39h 26mFrontier
Deal found 9/27$235
This Kiwi.com deal was found by Cheapflights users on 9/26. 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 10/25:55 amEWR - STL
1 stop10h 09mMultiple Airlines
Mon 10/64:00 pmSTL - EWR
2 stops16h 00mMultiple Airlines
Deal found 9/26$236
This Kiwi.com deal was found by Cheapflights users on 9/26. 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.
Fri 10/105:54 amEWR - STL
1 stop5h 43mMultiple Airlines
Sat 10/114:33 pmSTL - EWR
1 stop15h 32mMultiple Airlines
Deal found 9/26$237
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/125:54 amEWR - STL
1 stop5h 43mMultiple Airlines
Thu 10/1611:32 amSTL - EWR
1 stop21h 38mMultiple Airlines
Deal found 9/27$238
This Booking.com deal was found by Cheapflights users on 9/26. 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 10/25:55 amEWR - STL
1 stop10h 09mFrontier
Sun 10/54:00 pmSTL - EWR
1 stop17h 31mFrontier
Deal found 9/26$239
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/95:54 amEWR - STL
1 stop5h 43mMultiple Airlines
Sun 10/1210:57 amSTL - EWR
1 stop21h 03mMultiple Airlines
Deal found 9/27$240
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/205:00 amEWR - STL
2 stops15h 26mMultiple Airlines
Thu 10/2311:32 amSTL - EWR
1 stop12h 34mMultiple Airlines
Deal found 9/27$241
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 10/215:54 amEWR - STL
2 stops28h 13mFrontier
Fri 10/2411:11 amSTL - EWR
1 stop12h 55mFrontier
Deal found 9/27$242

Cheapflights Fare Finder

 
Customize your flight search to find flights from Newark to St. Louis 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 29, 2025.
Use the filters below to find and compare flights from Newark Airport to St. Louis that are best for you.

Fly from

Newark

Fly to

St. Louis

Route

Depart

Return

Price

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 12/24

9:59 pm-11:57 pm

Nonstop2h 58m

Lambert-St Louis

Sat 1/3

7:00 am-10:25 am

Nonstop2h 25m

$241

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 11/4

5:56 pm-10:04 pm

1 stop5h 08m

Lambert-St Louis

Tue 11/18

5:17 pm-11:07 pm

1 stop4h 50m

$253

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 10/29

9:15 am-11:04 am

Nonstop2h 49m

Lambert-St Louis

Fri 10/31

11:05 am-5:44 pm

1 stop5h 39m

$267

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 10/28

9:30 am-1:22 pm

1 stop4h 52m

Lambert-St Louis

Mon 11/3

6:14 pm-11:10 pm

1 stop3h 56m

$270

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 11/4

9:00 am-10:52 am

Nonstop2h 52m

Lambert-St Louis

Tue 11/18

10:00 am-5:00 pm

1 stop6h 00m

$273

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sat 10/25

6:00 am-10:49 am

1 stop5h 49m

Lambert-St Louis

Sat 11/1

11:05 am-4:49 pm

1 stop4h 44m

$288

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 10/21

9:00 am-2:27 pm

1 stop6h 27m

Lambert-St Louis

Fri 10/24

5:34 pm-9:00 pm

Nonstop2h 26m

$294

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 10/21

8:05 am-2:43 pm

1 stop7h 38m

Lambert-St Louis

Fri 10/24

5:15 pm-12:59 am

1 stop6h 44m

$304

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sat 11/1

9:00 am-11:03 am

Nonstop3h 03m

Lambert-St Louis

Sat 11/1

5:24 pm-11:42 pm

1 stop5h 18m

$307

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 10/29

9:46 pm-11:44 pm

Nonstop2h 58m

Lambert-St Louis

Sat 11/1

11:49 am-3:21 pm

Nonstop2h 32m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

Showing 1-10 of 22 results
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Compare providers for flights from Newark to St. Louis

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 Newark to St. Louis in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Newark Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Newark Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Newark Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Newark Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub 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 Newark Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Newark Airport to St. Louis 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 Newark Airport to St. Louis trip
Airports
EWR

Plan for long security waits at EWR. Arrive at least two hours before your flight to avoid delays.

Read more about EWRby Brandon Schultz
STL

Use the MetroLink light rail from STL for a convenient and economical trip to downtown St. Louis in about 40 minutes.

Read more about STLby Taryn White
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 Newark to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Newark 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 Newark Airport to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Newark to St. Louis. Price data was last updated on September 26, 2025.

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from Newark Airport to St. Louis. 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 Newark Airport to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Newark Airport to St. Louis (average of $311). Flying from Newark Airport to St. Louis in March is currently the most expensive (average of $356). 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 EWR to STL?

Find hourly flight availability from Newark to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 29, 2025.

It’s typically best to fly out from Newark Airport to St. Louis in the evening. Doing so could potentially save you 19% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Newark to St. Louis. Price data was last updated on September 28, 2025.

Travelers seeking maximum savings on their Newark Airport to St. Louis flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated September 29, 2025.
Read through reviews of airlines operating flights from Newark Airport to St. Louis, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Spirit Airlines
6.3
Okay
8,050 reviews
Delta
8.0
Very good
7,964 reviews

Comfort

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

Find useful and relevant information for your journey from Newark to St. Louis. 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 into for flights to St. Louis from Newark?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Newark to St. Louis. 4 airlines have flights to Lambert-St Louis from Newark on a regular basis. Booking flights from Newark to Lambert-St Louis should not be difficult; the airport handles an average of 4 inbound flights from Newark per day.

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

    Flights from Newark to Lambert-St Louis have been viewed 16 times in the past calendar month.

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

    Airlines like United Airlines and Delta fly from Newark Airport to St. Louis in about 2h 58m. The time it takes to get you to your destination can typically vary by up to 2h 10m. Newark Airport and St. Louis are separated by a distance of 869 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Spirit Airlines, at $152, was found to be the cheapest airline from Newark Airport to St. Louis.Alternate airlines to your destination round-trip include American Airlines and Delta. Spirit Airlines is priced at 62% lower than the current average price of a flight leaving 3 months from now.

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

    Before booking your flight to St. Louis from Newark Airport, check out the most reliable airlines to get you to your destination on time: United Airlines (72%), Republic Airways (72%), Austrian Airlines( 63%).

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

    The cheapest flight price from Newark Airport to St. Louis is $114. On average you can expect to pay $264. The most popular route, (Newark - Lambert-St Louis), can usually be booked for $175.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Newark to St. Louis 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 Newark Airport to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Newark Airport to St. Louis (average of $311). Flying from Newark Airport to St. Louis in March is currently the most expensive (average of $356). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 4 airlines flying from Newark to St. Louis

Discover the top 4 airlines that operate flights from Newark to St. Louis. 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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$152Average$239FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$355FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$339FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$426FlexibilityNo cancel feeOn-time69%

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