Cheap flights from St. Louis to New York from $104

The cheapest month to fly to Newark Airport from St. Louis is in October. Flight prices, which tend to average around $346, are often lower during this time because this is during the off-season. If you don’t want to visit Newark Airport in October, then you should wait until December to fly from St. Louis, when ticket prices are also cheap, with an average price of $364.

The cheapest day to depart on your flight to Newark Airport is on a Thursday when prices can be found for as low as $476. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Newark Airport for around $788.

The cheapest time of day to fly to Newark Airport is in the morning when flights can be purchased for as low as $514. Flights at noon are often more expensive with an average ticket price of $1,019.

Fly from Lambert-St Louis to Newark for the best Lambert-St Louis - Newark flight prices

You are more likely to see cheaper flights to Newark Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Newark Airport for around $389 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Newark Airport from St. Louis for as low as $294 on momondo.

There are 4 cabin classes available to choose from on St. Louis to Newark Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines and Delta are the most popular carriers operating from Lambert-St Louis to Newark

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Newark Airport from St. Louis according to our data. United Airlines is the first choice among our users, with 85% of people opting to fly with this airline when traveling to Newark Airport. Keep in mind that there are 4 different airlines that fly to Newark Airport on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

Flights via Chicago (ORD) offer the lowest average round-trip price of $322.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 4h 19m.

Detroit (DTW) has the shortest average layover time for this route: 1h 03m.

2 flights are operational daily from St. Louis to Newark Airport as of September 2026. The most popular departure time for this route is 12:00PM, with 85% of flights per day taking off in the afternoon.

As of September 2026, there are 17 flights per week flying from St. Louis to Newark Airport. The most common day of the week flights depart is Sat, with 29% of flights taking off on this day.