Cheap Flights from Alta (ALF) to St. Louis (STL)

Popular airlines from Alta (ALF) to St. Louis Lambert Intl. Airport (STL)

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Frequently asked questions

How much does a flight from Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL) cost?
Secure a cheap one-way flight or cheap return flight from Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL) 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 Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL)?
Flying in may help you find better deals, as it's the cheapest month for flights between ALF and STL. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline that'll fly you from ALF to STL, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL)?
There are no daily nonstop flights departing from Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from ALF to STL?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season 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 Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL)?
To arrive at Lambert-St. Louis Intl. Airport (STL) without delays, book a flight that leaves from Alta Airport (ALF) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute fares from ALF to STL are typically more expensive. For the best rates, start searching for flights as early as possible. That said, if your travel plans are flexible, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book an ALF to STL flight and hotel package?
Securing an ALF to STL flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of hotels and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Alta Airport (ALF) to Lambert-St. Louis Intl. Airport (STL)?
In most instances, you can cancel or reschedule your ALF to STL flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need more information, go to our Customer Service portal.

Travel information

Origin airport
Alta
Destination airport
Lambert-St. Louis Intl.
Distance
4233 mi

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Alta to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Alta 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 Alta 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 Alta to St. Louis in 2026. 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 Alta 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 Alta 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.

 

Alta to St. Louis Flights

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*Available to One Key members.