$348 Cheap Flights from Acapulco (ACA) to St. Louis (STL)

View $348 flight on Tue, Sep 2, 2025Opens in a new window

Popular airlines from General Juan N. Alvarez Intl. Airport (ACA) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Acapulco to St. Louis (ACA-STL)

Prices were available within the past 7 days and start at $348 for one-way flights and $566 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Thu, Sep 11 - Mon, Sep 15
ACA
Acapulco
STL
St. Louis
$566 Roundtrip, found 4 days ago
$566
Roundtrip
found 4 days ago
Select Aeromexico flight, departing Thu, Sep 11 from Acapulco to St. Louis, returning Mon, Sep 15, priced at $566 found 4 days ago
Delta
Tue, Sep 9 - Wed, Sep 17
ACA
Acapulco
STL
St. Louis
$566 Roundtrip, found 4 days ago
$566
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Sep 9 from Acapulco to St. Louis, returning Wed, Sep 17, priced at $566 found 4 days ago
Delta
Sat, Sep 6 - Tue, Sep 9
ACA
Acapulco
STL
St. Louis
$592 Roundtrip, found 4 days ago
$592
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Sep 6 from Acapulco to St. Louis, returning Tue, Sep 9, priced at $592 found 4 days ago
United
Sat, Sep 6 - Sat, Sep 13
ACA
Acapulco
STL
St. Louis
$618 Roundtrip, found 4 days ago
$618
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 6 from Acapulco to St. Louis, returning Sat, Sep 13, priced at $618 found 4 days ago
United
Sat, Sep 6 - Thu, Sep 11
ACA
Acapulco
STL
St. Louis
$632 Roundtrip, found 4 days ago
$632
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 6 from Acapulco to St. Louis, returning Thu, Sep 11, priced at $632 found 4 days ago
United
Sat, Sep 6 - Fri, Sep 12
ACA
Acapulco
STL
St. Louis
$641 Roundtrip, found 4 days ago
$641
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 6 from Acapulco to St. Louis, returning Fri, Sep 12, priced at $641 found 4 days ago
Delta
Tue, Sep 9 - Wed, Sep 10
ACA
Acapulco
STL
St. Louis
$649 Roundtrip, found 4 days ago
$649
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Sep 9 from Acapulco to St. Louis, returning Wed, Sep 10, priced at $649 found 4 days ago
United
Sat, Sep 6 - Thu, Sep 11
ACA
Acapulco
STL
St. Louis
$654 Roundtrip, found 4 days ago
$654
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 6 from Acapulco to St. Louis, returning Thu, Sep 11, priced at $654 found 4 days ago
Delta
Tue, Sep 9 - Fri, Sep 12
ACA
Acapulco
STL
St. Louis
$678 Roundtrip, found 4 days ago
$678
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Sep 9 from Acapulco to St. Louis, returning Fri, Sep 12, priced at $678 found 4 days ago
Aeromexico
Thu, Sep 11 - Sun, Sep 14
ACA
Acapulco
STL
St. Louis
$680 Roundtrip, found 4 days ago
$680
Roundtrip
found 4 days ago
Select Aeromexico flight, departing Thu, Sep 11 from Acapulco to St. Louis, returning Sun, Sep 14, priced at $680 found 4 days ago
Flights from Acapulco (ACA) to St. Louis (STL)
Origin airport
General Juan N. Alvarez Intl.
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$566
Distance
1621 mi

Acapulco to St. Louis Flights

The cheapest times to fly from Acapulco 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 Acapulco to St. Louis are during the month of September. You can find some of the cheapest flights from Acapulco to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Acapulco to St. Louis

Sunday is one of the best days to book for cheap flights from Acapulco 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 Acapulco 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 Acapulco to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $348 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 Acapulco 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 Acapulco 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.

 

Frequently asked questions

How much does a flight from General Juan N. Alvarez Intl. Airport (ACA) to Lambert-St. Louis Intl. Airport (STL) cost?
Discover the latest flight deals from ACA to STL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ACA to STL?
The cheapest flights from ACA to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ACA to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ACA to STL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from General Juan N. Alvarez Intl. Airport (ACA) to Lambert-St. Louis Intl. Airport (STL)?
There aren't any daily direct flights departing from General Juan N. Alvarez Intl. Airport (ACA) to Lambert-St. Louis Intl. Airport (STL). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from ACA to STL?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from General Juan N. Alvarez Intl. Airport (ACA) to Lambert-St. Louis Intl. Airport (STL)?
Select a flight from General Juan N. Alvarez Intl. Airport (ACA) to Lambert-St. Louis Intl. Airport (STL) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time 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.
Is it cheaper to buy a plane ticket from General Juan N. Alvarez Intl. Airport (ACA) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute bookings from ACA to STL are usually more expensive. To secure the lowest prices, start looking for flights as soon as possible. That said, if you're flexible with your travel dates, you may land a cheap fare right before you leave.
Is it cheaper to book an ACA to STL flight and hotel package?
You'll generally save money by securing an ACA to STL 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 everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from General Juan N. Alvarez Intl. Airport (ACA) to Lambert-St. Louis Intl. Airport (STL)?
It's usually possible to reschedule or cancel your ACA to STL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.