Cheap Flights from New York (LGA) to St. Louis (CPS)

Popular airlines from LaGuardia Airport (LGA) to St. Louis, MO (CPS-St. Louis Downtown)

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $166
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $166

Frequently asked questions

How much does a flight from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS) cost?
Get a cheap one-way flight or cheap return flight from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS)?
The cheapest month to fly from LGA to CPS is , when demand is low. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from LGA to CPS. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS)?
Direct flights from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from LGA to CPS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS)?
Select a flight from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for East St. Louis from LaGuardia Airport (LGA)?
If you're on a direct flight from LaGuardia Airport (LGA) to East St. Louis, Lambert-St. Louis Intl. Airport (STL) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS) last-minute?
Last-minute fares from LGA to CPS are usually more expensive. To secure the cheapest rates, start looking for flights as early as possible. That said, if you're flexible with your travel plans, you may find a cheap ticket right before your trip.
Is it cheaper to book a LGA to CPS flight and hotel package?
You'll generally save money by booking a LGA to CPS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your ideal accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from LaGuardia Airport (LGA) to St. Louis Downtown Airport (CPS)?
If you booked your LGA to CPS flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
LaGuardia
Destination airport
St. Louis Downtown
Distance
877 mi

Book with confidence

New York to St. Louis Flights

The cheapest times to fly from New York to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from New York to St. Louis are during the month of . You can find some of the cheapest flights from New York to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from New York to St. Louis

Sunday is one of the best days to book for cheap flights from New York to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from New York to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from New York to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap New York to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your New York to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

New York to St. Louis Flights

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*Available to One Key members.