$456 Cheap Flights from St. Louis (STL) to La Paz (LPB)

View $456 flight on Tue, Jul 22, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to El Alto Intl. Airport (LPB)

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Cheap Flights from St. Louis to La Paz (STL-LPB)

Prices were available within the past 7 days and start at $456 for one-way flights and $1,451 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,451 Roundtrip, found 6 days ago
$1,451
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,451 found 6 days ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,505 Roundtrip, found 6 days ago
$1,505
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,505 found 6 days ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,554 Roundtrip, found 6 days ago
$1,554
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,554 found 6 days ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,562 Roundtrip, found 2 days ago
$1,562
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,562 found 2 days ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,567 Roundtrip, found 6 days ago
$1,567
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,567 found 6 days ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,574 Roundtrip, found 2 days ago
$1,574
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,574 found 2 days ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,589 Roundtrip, found 6 days ago
$1,589
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,589 found 6 days ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,594 Roundtrip, found 1 day ago
$1,594
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,594 found 1 day ago
United
Thu, Jul 3 - Thu, Jul 24
STL
St. Louis
LPB
La Paz
$1,608 Roundtrip, found 6 days ago
$1,608
Roundtrip
found 6 days ago
Select United flight, departing Thu, Jul 3 from St. Louis to La Paz, returning Thu, Jul 24, priced at $1,608 found 6 days ago
avianca
Thu, Aug 14 - Thu, Aug 21
STL
St. Louis
LPB
La Paz
$4,736 Roundtrip, found 1 day ago
$4,736
Roundtrip
found 1 day ago
Select avianca flight, departing Thu, Aug 14 from St. Louis to La Paz, returning Thu, Aug 21, priced at $4,736 found 1 day ago
Flights from St. Louis (STL) to La Paz (LPB)
Origin airport
Lambert-St. Louis Intl.
Destination airport
El Alto Intl.
Airlines serving
avianca
Roundtrip price
$1,450
Distance
4078 mi

St. Louis to La Paz Flights

The cheapest times to fly from St. Louis to La Paz

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

 

The best time to book a flight from St. Louis to La Paz

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

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 La Paz in 2025. You can also book with separate airlines for your outbound and return journeys, from $456 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 La Paz 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 La Paz 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 El Alto Intl. Airport (LPB) cost?
Discover the latest flight deals from STL to LPB 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 STL to LPB?
The cheapest flights from STL to LPB 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 STL to LPB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to LPB. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to LPB?
You'll usually find Tuesday the quietest day for flights, while Fridays are often 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 Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB) last-minute?
Booking your plane ticket from STL to LPB right before your getaway is usually more expensive. But if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a STL to LPB flight and hotel package?
Securing a STL to LPB flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our wide range of stays and then add car rentals, flights and activities 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 Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB)?
Typically, you're able to reschedule or cancel your STL to LPB flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.