$494 Find Cheap Flights from St. Louis to Romania

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Romania departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from St. Louis to Romania

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Cluj Napoca
Cluj Napoca2 stops$645
Timisoara
Timisoara2 stops$1,470
Sibiu
Sibiu2 stops$721
Cluj Napoca
Cluj Napoca2 stops$645
Timisoara
Timisoara2 stops$1,470
Sibiu
Sibiu2 stops$721

Book Cheap St. Louis to Romania Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Romania that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Romania

Sun, Dec 7 - Tue, Dec 23
Delta Logo
7:02 pm - 10:50 pmSTL-OTP
19h 48m2 stops
Delta Logo
1:55 pm - 10:16 pmOTP-STL
40h 21m2 stops
$539Delta
Find Deal
Sun, Dec 7 - Tue, Dec 23
Delta Logo
6:00 am - 1:00 pmSTL-OTP
23h 00m2 stops
Delta Logo
1:55 pm - 10:16 pmOTP-STL
40h 21m2 stops
$544Delta
Find Deal
Sun, Dec 7 - Tue, Dec 23
Multiple Airlines Logo
5:27 pm - 11:50 pmSTL-OTP
22h 23m2 stops
Multiple Airlines Logo
2:50 pm - 1:55 pmOTP-STL
31h 05m1 stop
$563Multiple Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 23
United Airlines Logo
11:25 am - 2:05 pmSTL-OTP
18h 40m2 stops
United Airlines Logo
2:50 pm - 1:55 pmOTP-STL
31h 05m1 stop
$564United Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 23
Multiple Airlines Logo
11:25 am - 11:50 pmSTL-OTP
28h 25m2 stops
Multiple Airlines Logo
7:20 pm - 1:55 pmOTP-STL
26h 35m2 stops
$575Multiple Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 23
Lufthansa Logo
6:42 pm - 11:50 pmSTL-OTP
21h 08m2 stops
Lufthansa Logo
7:20 pm - 1:55 pmOTP-STL
26h 35m2 stops
$576Lufthansa
Find Deal
Sun, Dec 7 - Tue, Dec 23
Lufthansa Logo
6:42 pm - 11:50 pmSTL-OTP
21h 08m2 stops
Lufthansa Logo
2:50 pm - 1:55 pmOTP-STL
31h 05m1 stop
$582Lufthansa
Find Deal
Sun, Dec 7 - Tue, Dec 23
United Airlines Logo
3:50 pm - 2:05 pmSTL-OTP
14h 15m1 stop
United Airlines Logo
2:50 pm - 1:55 pmOTP-STL
31h 05m1 stop
$663United Airlines
Find Deal
Sun, Mar 8 - Wed, Mar 18
Air Canada Logo
4:05 pm - 2:05 pmSTL-OTP
39h 00m2 stops
Air Canada Logo
6:05 am - 3:29 pmOTP-STL
40h 24m2 stops
$708Air Canada
Find Deal
Thu, Dec 25 - Sat, Jan 10
Air Canada Logo
11:05 am - 12:30 pmSTL-OTP
17h 25m3 stops
Air Canada Logo
5:55 am - 7:27 pmOTP-STL
21h 32m3 stops
$1,407Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for St. Louis to Romania flights

Get data-powered insights and trends into flights from St. Louis to Romania to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between St. Louis and Romania?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Romania.

There are 2 airlines that fly nonstop from St. Louis to Romania. They are United Airlines and Lufthansa. The cheapest airline for this route is Lufthansa, with the best round-trip deal found costing $780 and arriving in Bucharest Otopeni Intl Airport (OTP). On average, United Airlines offers the best prices for nonstop flights between St. Louis and Romania.

Which airlines provide the cheapest flights from St. Louis to Romania?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Romania were found on Delta ($539) and United Airlines ($564).

Good to know

Low seasonSeptember
Cheapest flight$375
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from St. Louis to Bucharest

FAQs - booking Romania flights

  • How does KAYAK find such low prices on flights from St. Louis to Romania?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Romania.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Romania?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Romania is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Romania?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Romania with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Romania?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Romania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Romania?

    The cheapest time of day to fly to Romania is generally in the morning, when round-trip flights cost $1,059 on average. Morning departures are around 19% cheaper than evening flights, on average. The most expensive time of day to fly to Romania is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,313.

Reviews of the top 4 airlines serving from St. Louis to Romania

 
Need help choosing which airline to fly with from St. Louis to Romania? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8001 reviews
8.2Boarding
7.9Comfort
7.3Food
7.9Entertainment
8.5Crew
Airline reviews

I truly love flying with Delta. They have always treated me with the upmost respect

10.0 ExcellentMAYRA, Nov 2025JFK - MIA
Read more Delta reviews

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

I liked a lot , the flight attendant so nice ,the seat very comfortable I enjoyed the flight , I will do it again with Air Canada,

Plane left an hour late, I missed my connection and my bow case was never even loaded on the plane in VA. I deal with this type of nonsense everytime I fly air canada.

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything you need to know for your flight from St. Louis to Romania

Information on your arrival and departure airports