$103 Cheap Flights from St. Louis (STL) to Atlantic City (ACY)

View $103 flight on Thu, Oct 16, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Atlantic City Intl. Airport (ACY)

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Cheap Flights from St. Louis to Atlantic City (STL-ACY)

Prices were available within the past 7 days and start at $103 for one-way flights and $205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Oct 16 - Sat, Oct 25
STL
St. Louis
ACY
Atlantic City
$205 Roundtrip, found 6 days ago
$205
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Thu, Oct 16 from St. Louis to Atlantic City, returning Sat, Oct 25, priced at $205 found 6 days ago
Spirit Airlines
Thu, Dec 4 - Sat, Dec 13
STL
St. Louis
ACY
Atlantic City
$225 Roundtrip, found 6 days ago
$225
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Thu, Dec 4 from St. Louis to Atlantic City, returning Sat, Dec 13, priced at $225 found 6 days ago
Spirit Airlines
Sun, Oct 19 - Sat, Oct 25
STL
St. Louis
ACY
Atlantic City
$230 Roundtrip, found 3 days ago
$230
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Sun, Oct 19 from St. Louis to Atlantic City, returning Sat, Oct 25, priced at $230 found 3 days ago
Spirit Airlines
Thu, Jan 29 - Sat, Jan 31
STL
St. Louis
ACY
Atlantic City
$255 Roundtrip, found 16 hours ago
$255
Roundtrip
found 16 hours ago
Select Spirit Airlines flight, departing Thu, Jan 29 from St. Louis to Atlantic City, returning Sat, Jan 31, priced at $255 found 16 hours ago
Spirit Airlines
Thu, Oct 23 - Sat, Oct 25
STL
St. Louis
ACY
Atlantic City
$287 Roundtrip, found 1 day ago
$287
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu, Oct 23 from St. Louis to Atlantic City, returning Sat, Oct 25, priced at $287 found 1 day ago
Spirit Airlines
Sun, Oct 19 - Sat, Oct 25
STL
St. Louis
ACY
Atlantic City
$305 Roundtrip, found 13 hours ago
$305
Roundtrip
found 13 hours ago
Select Spirit Airlines flight, departing Sun, Oct 19 from St. Louis to Atlantic City, returning Sat, Oct 25, priced at $305 found 13 hours ago
Spirit Airlines
Sat, Jan 10 - Wed, Jan 14
STL
St. Louis
ACY
Atlantic City
$334 Roundtrip, just found
$334
Roundtrip
just found
Select Spirit Airlines flight, departing Sat, Jan 10 from St. Louis to Atlantic City, returning Wed, Jan 14, priced at $334 just found
Spirit Airlines
Thu, Nov 20 - Mon, Nov 24
STL
St. Louis
ACY
Atlantic City
$355 Roundtrip, found 4 days ago
$355
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Thu, Nov 20 from St. Louis to Atlantic City, returning Mon, Nov 24, priced at $355 found 4 days ago
American Airlines
Thu, Nov 20 - Mon, Nov 24
STL
St. Louis
ACY
Atlantic City
$362 Roundtrip, found 4 days ago
$362
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Nov 20 from St. Louis to Atlantic City, returning Mon, Nov 24, priced at $362 found 4 days ago
American Airlines
Sat, Nov 1 - Mon, Nov 3
STL
St. Louis
ACY
Atlantic City
$377 Roundtrip, found 5 days ago
$377
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Nov 1 from St. Louis to Atlantic City, returning Mon, Nov 3, priced at $377 found 5 days ago

Find the cheapest month to fly from St. Louis (STL) to Atlantic City (ACY)

February is typically the cheapest month to fly

From $186 - $722 per traveler.
Flights from St. Louis (STL) to Atlantic City (ACY)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Atlantic City Intl.
Airlines serving
American Airlines, Spirit Airlines
Roundtrip price
$205
Distance
847 mi

St. Louis to Atlantic City Flights

The cheapest times to fly from St. Louis to Atlantic City

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 St. Louis to Atlantic City are during the month of October. You can find some of the cheapest flights from St. Louis to Atlantic City with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Atlantic City

Sunday is one of the best days to book for cheap flights from St. Louis to Atlantic City: 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 St. Louis to Atlantic City

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 St. Louis to Atlantic City in 2025. You can also book with separate airlines for your outbound and return journeys, from $103 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 St. Louis to Atlantic City 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 St. Louis to Atlantic City 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.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY) cost?
Secure a cheap one-way flight from $103 or cheap return flight from $205 from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY) 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 Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY)?
October is the cheapest month to fly from STL to ACY. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from STL to ACY. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY)?
There aren't any daily direct flights available from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from STL to ACY?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY) that takes off before 3 PM to reduce the likelihood of delays. 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 Atlantic City from Lambert-St. Louis Intl. Airport (STL)?
Philadelphia Intl. Airport (PHL) is the only airport in Atlantic City with direct flights from Lambert-St. Louis Intl. Airport (STL). Check out your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY) last-minute?
Last-minute fares from STL to ACY are usually more expensive. To lock in the lowest prices, start searching for flights well in advance. That said, if you're flexible with your travel plans, it's possible to land a cheap fare right before your trip.
Is it cheaper to book a STL to ACY flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to ACY flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our wide range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Atlantic City Intl. Airport (ACY)?
If you booked your STL to ACY flight in the last 24 hours, you may be able to cancel or modify it without any 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, go to our Customer Service portal if you want more information.

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*Available to One Key members.