Cheap flights from St. Louis to Bucharest from $467
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Bucharest departing on 9/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from St. Louis to Bucharest
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Bucharest?
Our data shows that Saturday is the least expensive day to fly to Bucharest. Tickets to fly out on this day can be as low as $813. The most expensive day to fly to Bucharest is Wednesday, with ticket prices averaging around $1,473.
What is the cheapest time of day to depart on your flight to Bucharest?
According to our data, the cheapest time of day to fly to Bucharest is in the morning. momondo users have found flights departing from St. Louis to Bucharest in the morning for as low as $1,059. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Bucharest is in the afternoon when prices are around $1,313.
When to book flights from St. Louis to Bucharest
Cheap St. Louis to Bucharest (STL to BUH) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Bucharest
How far is Lambert-St Louis to Bucharest by plane?
Lambert-St Louis and Bucharest are 5458.3 mi apart from one another. Flights usually cover this in 13h 45m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Bucharest?
Prices for flights from Lambert-St Louis Airport to Bucharest are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Bucharest?
As of June 2025, there are 2 operators available to choose from for flights from Lambert-St Louis Airport to Bucharest.
How old do you have to be to fly from Lambert-St Louis Airport to Bucharest?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Bucharest.
What documentation or ID do you need to fly to Bucharest?
The travel and health documents required for your trip to Bucharest can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bucharest. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Bucharest?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Bucharest is Lufthansa, representing 54% of all bookings. The subsequent popular airlines are Air Canada at 30% and Delta at 16%.
Best airlines flying from St. Louis to Bucharest
Compare and see reviews for airlines that fly from St. Louis to Bucharest with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $759 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $788 | Free Cancellation | Rating 6.7 7,139 reviews |
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Why should I use momondo to find a flight deal from St. Louis to Bucharest?
It is quick and easy to find St. Louis to Bucharest flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bucharest that suits you.
Can I find flights from St. Louis to Bucharest with flexible booking policies on momondo?
All flight searches from St. Louis to Bucharest on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from St. Louis to Bucharest?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Bucharest.
I’m not ready to book a flight from St. Louis to Bucharest right now. Can momondo alert me if prices change?
Yes. momondo can track prices for St. Louis to Bucharest flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.