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$54+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — STL
Jul 26 — Aug 21
Sat 7/26
Sat 8/2
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 46 days in advance, depart on a Saturday or Wednesday 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 July 21, 2025.

Round-trip from

$181
(Cheapflightsfares)

One-way from

$54
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$439

Good round-trip deal

$403 or less

Good one-way deal

$264 or less
From Newark to Lambert-St Louis
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One-way flight from Newark to Lambert-St Louis
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Highest demand for flights based on searches. 2% potential increase in price ($11 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 July 2025
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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 July 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1210:12 amEWR - STL
1 stop7h 19mSpirit Airlines
Thu 8/142:30 pmSTL - EWR
1 stop5h 30mSpirit Airlines
Deal found 7/20$181
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Fri 9/129:48 pmEWR - STL
Nonstop2h 56mUnited Airlines
Mon 9/156:00 amSTL - EWR
Nonstop2h 36mUnited Airlines
Deal found 7/20$197
This American Airlines deal was found by Cheapflights users on 7/20. 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.
Tue 9/25:00 amEWR - STL
1 stop5h 29mAmerican Airlines
Wed 9/102:11 pmSTL - EWR
1 stop6h 49mAmerican Airlines
Deal found 7/20$227
This FlightHub deal was found by Cheapflights users on 7/20. 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 8/145:59 amEWR - STL
1 stop8h 35mMultiple Airlines
Mon 8/182:30 pmSTL - EWR
1 stop5h 30mMultiple Airlines
Deal found 7/20$230

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 July 21, 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

Tue 8/12

10:12 am-4:31 pm

1 stop7h 19m

Lambert-St Louis

Thu 8/14

2:30 pm-9:00 pm

1 stop5h 30m

$181

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Fri 9/12

9:48 pm-11:44 pm

Nonstop2h 56m

Lambert-St Louis

Mon 9/15

6:00 am-9:36 am

Nonstop2h 36m

$197

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 9/2

5:00 am-9:29 am

1 stop5h 29m

Lambert-St Louis

Wed 9/10

2:11 pm-10:00 pm

1 stop6h 49m

$227

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Thu 8/14

5:59 am-1:34 pm

1 stop8h 35m

Lambert-St Louis

Mon 8/18

2:30 pm-9:00 pm

1 stop5h 30m

$230

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Thu 8/28

10:00 am-1:32 pm

1 stop4h 32m

$57

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Wed 9/10

9:48 pm-11:44 pm

Nonstop2h 56m

$99

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Mon 8/25

5:55 am-12:56 pm

1 stop8h 01m

$105

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Sat 10/11

9:40 am-1:20 pm

1 stop4h 40m

$109

NewarkSt. Louis

EWR - STL

EWRSTL

Newark

Tue 8/19

5:00 am-9:29 am

1 stop5h 29m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

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 July 18, 2025.

Booking 46 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 July 21, 2025.

It’s typically best to fly out from Newark Airport to St. Louis in the evening. Doing so could potentially save you 25% 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 July 20, 2025.

Travelers seeking maximum savings on their Newark Airport to St. Louis flight should consider departing on Saturday 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.

Weekly flight availability from Newark Airport to St. Louis

Explore weekly flight availability from Newark to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 21, 2025.

The most flights from EWR to STL are scheduled on a Friday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 July 21, 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
7,962 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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
7,962 reviews
Delta
8.0
Very good
7,962 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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
8,867 reviews
Delta
8.0
Very good
7,962 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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
7,962 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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
8,026 reviews
Delta
8.0
Very good
7,962 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.
Frontier
5.9
Fair
3,244 reviews
Delta
8.0
Very good
7,962 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

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

    Spirit Airlines, at $181, was found to be the cheapest airline from Newark Airport to St. Louis.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Spirit Airlines is priced at 55% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $54. United Airlines flights start at $99 while deals on Frontier start at $105 one-way.

  • 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 (58%), Austrian Airlines (55%), Lufthansa( 55%).

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

    The cheapest flight price from Newark Airport to St. Louis is $182. On average you can expect to pay $721. The most popular route, (Newark - Lambert-St Louis), can usually be booked for $146.

  • 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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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 July 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$152Average$239FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$346FlexibilityNo cancel feeOn-time71%
DeltaCheapest$199Average$340FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$252Average$430FlexibilityNo cancel feeOn-time69%

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