$471 Cheap Flights from St. Louis (STL) to Cluj-Napoca (CLJ)

View $471 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Cluj-Napoca (CLJ)

Cheap Flights from St. Louis to Cluj-Napoca (STL-CLJ)

Prices were available within the past 7 days and start at $471 for one-way flights and $586 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Apr 28 - Wed, May 13
STL
St. Louis
CLJ
Cluj-Napoca
$586 Roundtrip, found 5 days ago
$586
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Apr 28 from St. Louis to Cluj-Napoca, returning Wed, May 13, priced at $586 found 5 days ago
United
Tue, Apr 21 - Wed, May 6
STL
St. Louis
CLJ
Cluj-Napoca
$588 Roundtrip, found 5 days ago
$588
Roundtrip
found 5 days ago
Select United flight, departing Tue, Apr 21 from St. Louis to Cluj-Napoca, returning Wed, May 6, priced at $588 found 5 days ago
Lufthansa
Mon, Nov 3 - Mon, Nov 10
STL
St. Louis
CLJ
Cluj-Napoca
$588 Roundtrip, found 5 hours ago
$588
Roundtrip
found 5 hours ago
Select Lufthansa flight, departing Mon, Nov 3 from St. Louis to Cluj-Napoca, returning Mon, Nov 10, priced at $588 found 5 hours ago
United
Sun, Mar 22 - Tue, Apr 7
STL
St. Louis
CLJ
Cluj-Napoca
$589 Roundtrip, found 5 days ago
$589
Roundtrip
found 5 days ago
Select United flight, departing Sun, Mar 22 from St. Louis to Cluj-Napoca, returning Tue, Apr 7, priced at $589 found 5 days ago
Air Canada
Sun, Apr 19 - Wed, May 6
STL
St. Louis
CLJ
Cluj-Napoca
$590 Roundtrip, found 5 days ago
$590
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, Apr 19 from St. Louis to Cluj-Napoca, returning Wed, May 6, priced at $590 found 5 days ago
United
Sun, Nov 2 - Wed, Nov 19
STL
St. Louis
CLJ
Cluj-Napoca
$592 Roundtrip, found 5 days ago
$592
Roundtrip
found 5 days ago
Select United flight, departing Sun, Nov 2 from St. Louis to Cluj-Napoca, returning Wed, Nov 19, priced at $592 found 5 days ago
United
Sun, Mar 1 - Thu, Mar 19
STL
St. Louis
CLJ
Cluj-Napoca
$593 Roundtrip, found 5 days ago
$593
Roundtrip
found 5 days ago
Select United flight, departing Sun, Mar 1 from St. Louis to Cluj-Napoca, returning Thu, Mar 19, priced at $593 found 5 days ago
Air Canada
Tue, Oct 28 - Tue, Nov 4
STL
St. Louis
CLJ
Cluj-Napoca
$594 Roundtrip, found 1 day ago
$594
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Oct 28 from St. Louis to Cluj-Napoca, returning Tue, Nov 4, priced at $594 found 1 day ago
United
Sun, Mar 22 - Thu, Apr 9
STL
St. Louis
CLJ
Cluj-Napoca
$594 Roundtrip, found 5 days ago
$594
Roundtrip
found 5 days ago
Select United flight, departing Sun, Mar 22 from St. Louis to Cluj-Napoca, returning Thu, Apr 9, priced at $594 found 5 days ago
Turkish Airlines
Sat, Oct 4 - Sat, Oct 11
STL
St. Louis
CLJ
Cluj-Napoca
$1,793 Roundtrip, found 2 days ago
$1,793
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Sat, Oct 4 from St. Louis to Cluj-Napoca, returning Sat, Oct 11, priced at $1,793 found 2 days ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Cluj-Napoca Airport (CLJ) cost?
Secure a cheap one-way flight from $471 or cheap return flight from $586 from Lambert-St. Louis Intl. Airport (STL) to Cluj-Napoca Airport (CLJ) 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 Cluj-Napoca Airport (CLJ)?
The cheapest month to fly from STL to CLJ is April, when demand is low. Off-peak months are usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Cluj-Napoca Airport (CLJ)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from STL to CLJ. Then, 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 Cluj-Napoca Airport (CLJ)?
You'll have to catch a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Cluj-Napoca Airport (CLJ). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from STL to CLJ?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, carrier 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 Lambert-St. Louis Intl. Airport (STL) to Cluj-Napoca Airport (CLJ)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Cluj-Napoca Airport (CLJ) route, aim to fly before 3 PM. Departures after this time are 22% more likely to be canceled.**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 Cluj-Napoca Airport (CLJ) last-minute?
Last-minute fares from STL to CLJ are typically more expensive. For the lowest prices, start looking for flights as soon as possible. That being said, if your travel plans are flexible, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a STL to CLJ flight and hotel package?
You can save money by securing a STL to CLJ flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Cluj-Napoca Airport (CLJ)?
If you booked your STL to CLJ flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Cluj-Napoca
Airlines serving
Air Canada, Lufthansa
Roundtrip price
$586
Distance
5265 mi

Book with confidence

Book with confidence

St. Louis to Cluj-Napoca Flights

The cheapest times to fly from St. Louis to Cluj-Napoca

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

 

The best time to book a flight from St. Louis to Cluj-Napoca

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

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 Cluj-Napoca in 2025. You can also book with separate airlines for your outbound and return journeys, from $471 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 Cluj-Napoca 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 Cluj-Napoca 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.

 

St. Louis to Cluj-Napoca Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.