$408 Cheap Flights from St. Louis (STL) to La Paz (LPB)

View $408 flight on Tue, Oct 21, 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 $408 for one-way flights and $740 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Oct 23 - Tue, Nov 4
STL
St. Louis
LPB
La Paz
$740 Roundtrip, found 7 hours ago
$740
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Oct 23 from St. Louis to La Paz, returning Tue, Nov 4, priced at $740 found 7 hours ago
United
Thu, Oct 23 - Mon, Nov 17
STL
St. Louis
LPB
La Paz
$745 Roundtrip, found 9 hours ago
$745
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Oct 23 from St. Louis to La Paz, returning Mon, Nov 17, priced at $745 found 9 hours ago
United
Tue, Oct 21 - Tue, Nov 18
STL
St. Louis
LPB
La Paz
$749 Roundtrip, found 9 hours ago
$749
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Oct 21 from St. Louis to La Paz, returning Tue, Nov 18, priced at $749 found 9 hours ago
United
Tue, Oct 21 - Tue, Nov 18
STL
St. Louis
LPB
La Paz
$749 Roundtrip, found 9 hours ago
$749
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Oct 21 from St. Louis to La Paz, returning Tue, Nov 18, priced at $749 found 9 hours ago
United
Wed, Oct 1 - Wed, Oct 15
STL
St. Louis
LPB
La Paz
$752 Roundtrip, found 7 hours ago
$752
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 1 from St. Louis to La Paz, returning Wed, Oct 15, priced at $752 found 7 hours ago
United
Mon, Oct 20 - Mon, Nov 17
STL
St. Louis
LPB
La Paz
$754 Roundtrip, found 9 hours ago
$754
Roundtrip
found 9 hours ago
Select United flight, departing Mon, Oct 20 from St. Louis to La Paz, returning Mon, Nov 17, priced at $754 found 9 hours ago
United
Fri, Oct 24 - Mon, Nov 17
STL
St. Louis
LPB
La Paz
$755 Roundtrip, found 9 hours ago
$755
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Oct 24 from St. Louis to La Paz, returning Mon, Nov 17, priced at $755 found 9 hours ago
United
Tue, Oct 21 - Tue, Nov 18
STL
St. Louis
LPB
La Paz
$758 Roundtrip, found 9 hours ago
$758
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Oct 21 from St. Louis to La Paz, returning Tue, Nov 18, priced at $758 found 9 hours ago
United
Tue, Oct 21 - Tue, Nov 18
STL
St. Louis
LPB
La Paz
$759 Roundtrip, found 9 hours ago
$759
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Oct 21 from St. Louis to La Paz, returning Tue, Nov 18, priced at $759 found 9 hours ago
avianca
Sat, Feb 7 - Sat, Feb 14
STL
St. Louis
LPB
La Paz
$1,567 Roundtrip, found 1 day ago
$1,567
Roundtrip
found 1 day ago
Select avianca flight, departing Sat, Feb 7 from St. Louis to La Paz, returning Sat, Feb 14, priced at $1,567 found 1 day ago

Alternative airports near La Paz

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

Select flight to El Alto Intl. LPB. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $821
LPB
El Alto Intl.
CheapestClosest
Average driving time to city center12 min
Flights from $821
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
$739
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 October. 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 $408 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?
Secure a cheap one-way flight from $408 or cheap return flight from $740 from Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB)?
October is the most affordable month to fly from STL to LPB. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to El Alto Intl. Airport (LPB)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from STL to LPB. Then, sort your results by "Price (lowest to highest)" to pick 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.