$447 Cheap Flights from St. Louis (STL) to Zagreb (ZAG)

View $447 flight on Mon, Oct 13, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Zagreb Airport (ZAG)

Cheap Flights from St. Louis to Zagreb (STL-ZAG)

Prices were available within the past 7 days and start at $447 for one-way flights and $597 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Oct 19 - Fri, Nov 21
STL
St. Louis
ZAG
Zagreb
$597 Roundtrip, found 1 day ago
$597
Roundtrip
found 1 day ago
Select United flight, departing Sun, Oct 19 from St. Louis to Zagreb, returning Fri, Nov 21, priced at $597 found 1 day ago
Lufthansa
Mon, Oct 27 - Wed, Nov 5
STL
St. Louis
ZAG
Zagreb
$597 Roundtrip, found 3 days ago
$597
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Oct 27 from St. Louis to Zagreb, returning Wed, Nov 5, priced at $597 found 3 days ago
Lufthansa
Mon, Oct 27 - Fri, Nov 14
STL
St. Louis
ZAG
Zagreb
$597 Roundtrip, found 4 days ago
$597
Roundtrip
found 4 days ago
Select Lufthansa flight, departing Mon, Oct 27 from St. Louis to Zagreb, returning Fri, Nov 14, priced at $597 found 4 days ago
Air Canada
Mon, Oct 27 - Wed, Nov 5
STL
St. Louis
ZAG
Zagreb
$599 Roundtrip, found 3 days ago
$599
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 27 from St. Louis to Zagreb, returning Wed, Nov 5, priced at $599 found 3 days ago
Air Canada
Mon, Oct 20 - Fri, Nov 21
STL
St. Louis
ZAG
Zagreb
$599 Roundtrip, found 1 day ago
$599
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Oct 20 from St. Louis to Zagreb, returning Fri, Nov 21, priced at $599 found 1 day ago
United
Mon, Oct 27 - Fri, Nov 14
STL
St. Louis
ZAG
Zagreb
$601 Roundtrip, found 4 days ago
$601
Roundtrip
found 4 days ago
Select United flight, departing Mon, Oct 27 from St. Louis to Zagreb, returning Fri, Nov 14, priced at $601 found 4 days ago
United
Mon, Oct 27 - Fri, Nov 14
STL
St. Louis
ZAG
Zagreb
$603 Roundtrip, found 4 days ago
$603
Roundtrip
found 4 days ago
Select United flight, departing Mon, Oct 27 from St. Louis to Zagreb, returning Fri, Nov 14, priced at $603 found 4 days ago
British Airways
Mon, Sep 1 - Wed, Nov 19
STL
St. Louis
ZAG
Zagreb
$605 Roundtrip, found 4 days ago
$605
Roundtrip
found 4 days ago
Select British Airways flight, departing Mon, Sep 1 from St. Louis to Zagreb, returning Wed, Nov 19, priced at $605 found 4 days ago
Air Canada
Mon, Oct 27 - Wed, Nov 5
STL
St. Louis
ZAG
Zagreb
$606 Roundtrip, found 3 days ago
$606
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Oct 27 from St. Louis to Zagreb, returning Wed, Nov 5, priced at $606 found 3 days ago
Austrian Airlines
Tue, Oct 21 - Fri, Nov 7
STL
St. Louis
ZAG
Zagreb
$610 Roundtrip, found 6 days ago
$610
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Tue, Oct 21 from St. Louis to Zagreb, returning Fri, Nov 7, priced at $610 found 6 days ago

Find the cheapest month to fly from St. Louis (STL) to Zagreb (ZAG)

November is typically the cheapest month to fly

From $575 - $1,685 per traveler.

Graph displaying average flight prices per month

Flights from St. Louis (STL) to Zagreb (ZAG)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Zagreb
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Iberia, KLM, Lufthansa, Turkish Airlines, United
Roundtrip price
$596
Distance
5036 mi

St. Louis to Zagreb Flights

The cheapest times to fly from St. Louis to Zagreb

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

 

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

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

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 Zagreb in 2025. You can also book with separate airlines for your outbound and return journeys, from $447 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 Zagreb 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 Zagreb 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 Zagreb Airport (ZAG) cost?
Discover the latest flight deals from STL to ZAG 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 ZAG?
The cheapest flights from STL to ZAG 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 ZAG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to ZAG. 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 Zagreb Airport (ZAG)?
You'll need to book a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Zagreb Airport (ZAG). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from STL to ZAG?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, including the season and airline.*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 Zagreb Airport (ZAG)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Zagreb Airport (ZAG) that takes off before 3 PM to reduce the risk of cancellations. Departures later than this 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 Lambert-St. Louis Intl. Airport (STL) to Zagreb Airport (ZAG) last-minute?
Waiting until right before your break to book a ticket from STL to ZAG generally means paying more. While you may find some last-minute deals, there's no guarantee. Be flexible with your travel plans to maximize your chances of scoring a bargain.
Is it cheaper to book a STL to ZAG flight and hotel package?
Booking a STL to ZAG flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our wide range of stays and then add car rentals, flights and activities to your booking. Bundle everything 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 Zagreb Airport (ZAG)?
In most instances, you can cancel or modify your STL to ZAG flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want further details, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.