$473 Cheap Flights from St. Louis (STL) to Zagreb (ZAG)

View $473 flight on Mon, Oct 20, 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 $473 for one-way flights and $621 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 22 - Wed, Nov 5
STL
St. Louis
ZAG
Zagreb
$621 Roundtrip, found 11 hours ago
$621
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Oct 22 from St. Louis to Zagreb, returning Wed, Nov 5, priced at $621 found 11 hours ago
Air Canada
Tue, Oct 21 - Wed, Nov 5
STL
St. Louis
ZAG
Zagreb
$623 Roundtrip, found 11 hours ago
$623
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Tue, Oct 21 from St. Louis to Zagreb, returning Wed, Nov 5, priced at $623 found 11 hours ago
United
Tue, Dec 9 - Wed, Dec 24
STL
St. Louis
ZAG
Zagreb
$626 Roundtrip, found 3 days ago
$626
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 9 from St. Louis to Zagreb, returning Wed, Dec 24, priced at $626 found 3 days ago
United
Tue, Mar 3 - Fri, Mar 13
STL
St. Louis
ZAG
Zagreb
$627 Roundtrip, found 3 days ago
$627
Roundtrip
found 3 days ago
Select United flight, departing Tue, Mar 3 from St. Louis to Zagreb, returning Fri, Mar 13, priced at $627 found 3 days ago
United
Wed, Dec 31 - Fri, Feb 13
STL
St. Louis
ZAG
Zagreb
$628 Roundtrip, found 2 days ago
$628
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 31 from St. Louis to Zagreb, returning Fri, Feb 13, priced at $628 found 2 days ago
United
Wed, Oct 22 - Tue, Nov 4
STL
St. Louis
ZAG
Zagreb
$631 Roundtrip, found 11 hours ago
$631
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Oct 22 from St. Louis to Zagreb, returning Tue, Nov 4, priced at $631 found 11 hours ago
Lufthansa
Wed, Dec 24 - Tue, Feb 10
STL
St. Louis
ZAG
Zagreb
$632 Roundtrip, found 1 hour ago
$632
Roundtrip
found 1 hour ago
Select Lufthansa flight, departing Wed, Dec 24 from St. Louis to Zagreb, returning Tue, Feb 10, priced at $632 found 1 hour ago
United
Mon, Jan 19 - Tue, Feb 3
STL
St. Louis
ZAG
Zagreb
$637 Roundtrip, found 3 days ago
$637
Roundtrip
found 3 days ago
Select United flight, departing Mon, Jan 19 from St. Louis to Zagreb, returning Tue, Feb 3, priced at $637 found 3 days ago
Austrian Airlines
Tue, Nov 18 - Tue, Dec 2
STL
St. Louis
ZAG
Zagreb
$648 Roundtrip, found 2 days ago
$648
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Tue, Nov 18 from St. Louis to Zagreb, returning Tue, Dec 2, priced at $648 found 2 days ago
Delta
Tue, Jan 20 - Wed, Feb 4
STL
St. Louis
ZAG
Zagreb
$660 Roundtrip, found 2 days ago
$660
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 20 from St. Louis to Zagreb, returning Wed, Feb 4, priced at $660 found 2 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 - $1,637 per traveler.

Graph displaying average flight prices per month

Alternative airports near Zagreb

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

Select flight to Zagreb Airport ZAG. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $1,084
ZAG
Zagreb Airport
CheapestClosest
Average driving time to city center16 min
Flights from $1,084
Flights from St. Louis (STL) to Zagreb (ZAG)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Zagreb
Airlines serving
Air Canada, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Iberia, KLM, Lufthansa, Turkish Airlines, United
Roundtrip price
$621
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 $473 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?
Get a cheap one-way flight from $473 or cheap return flight from $621 from Lambert-St. Louis Intl. Airport (STL) to Zagreb Airport (ZAG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Zagreb Airport (ZAG)?
October is the most affordable month to fly from STL to ZAG. Planning your trip for the off-season is often the key to finding a great deal.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Zagreb Airport (ZAG)?
To find the cheapest airline that'll fly you from STL to ZAG, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
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.

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*Available to One Key members.