STL - OTP

$487 Find Cheap Flights from St. Louis to Bucharest

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 Bucharest departing on 4/2. 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.
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Search hundreds of travel sites at once for deals on flights to Bucharest

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bucharest, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bucharest, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap Flight Deals from St. Louis to Bucharest (STL-OTP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Bucharest 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.

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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Bucharest.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:50 pm - 6:30 pmSTL-OTP
18h 40m2 stops
6:05 am - 3:06 pmOTP-STL
40h 01m2 stops
Wed, Mar 5 - Wed, Mar 12
3:45 pm - 6:25 pmSTL-OTP
18h 40m1 stop
6:05 am - 2:55 pmOTP-STL
15h 50m1 stop
$650Lufthansa
Find Deal
Wed, Mar 5 - Wed, Mar 12
1:03 pm - 3:45 pmSTL-OTP
18h 42m2 stops
6:05 am - 2:55 pmOTP-STL
15h 50m1 stop
$651United Airlines
Find Deal
Wed, Mar 5 - Wed, Mar 12
3:30 pm - 1:15 pmSTL-OTP
13h 45m1 stop
6:00 am - 1:30 pmOTP-STL
15h 30m1 stop
$893Lufthansa
Find Deal
Wed, Apr 2 - Sun, Apr 13
3:30 pm - 5:55 pmSTL-OTP
18h 25m1 stop
1:45 pm - 2:59 pmOTP-STL
33h 14m2 stops
$902United Airlines
Find Deal
Wed, Apr 2 - Sun, Apr 13
1:43 pm - 6:35 pmSTL-OTP
20h 52m2 stops
6:00 am - 2:59 pmOTP-STL
40h 59m2 stops
$905United Airlines
Find Deal
Wed, Apr 2 - Sun, Apr 13
3:50 pm - 6:30 pmSTL-OTP
18h 40m2 stops
6:00 am - 9:49 pmOTP-STL
22h 49m3 stops
$999Air Canada
Find Deal
Wed, Mar 5 - Wed, Mar 12
3:50 pm - 5:55 pmSTL-OTP
18h 05m2 stops
6:00 am - 8:01 pmOTP-STL
22h 01m2 stops
$1,043Air Canada
Find Deal
Wed, Apr 9 - Wed, May 28
3:40 pm - 1:15 amSTL-OTP
25h 35m2 stops
2:15 am - 8:04 pmOTP-STL
25h 49m2 stops
$2,547Emirates
Find Deal
Wed, Apr 2 - Sat, Apr 12
3:40 pm - 1:15 amSTL-OTP
25h 35m2 stops
2:15 am - 9:04 pmOTP-STL
26h 49m2 stops
$3,615Emirates
Find Deal
Wed, Apr 9 - Tue, May 27

Flights from St. Louis to Bucharest - Travel Insights & Trends

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

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

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 Bucharest were found on Lufthansa ($650) and United Airlines ($651).

Good to know

High season

May

Cheapest flight

$487
Most popular time to fly with an average 6% increase in price.
Flight from St. Louis to Bucharest

When to book flights from St. Louis to Bucharest

Are your dates flexible? Find out the best times to travel from St. Louis to Bucharest based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking St. Louis to Bucharest flights

  • What is the cheapest flight from St. Louis to Bucharest Otopeni Intl Airport?

    In the last 3 days, the lowest price for a flight from St. Louis to Bucharest Otopeni Intl Airport was $487 for a one-way ticket and $646 for a round-trip.

  • Do I need a passport to fly between St. Louis and Bucharest?

    Yes, you’ll need a passport to travel to Bucharest from St. Louis.

  • Which airports will I be using when flying from St. Louis to Bucharest?

    St. Louis and Bucharest are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Bucharest Otopeni Intl.

  • Which aircraft models fly most regularly from St. Louis to Bucharest?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Bucharest?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Bucharest, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Bucharest, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bucharest are United Airlines and Lufthansa. With an average price for the route of $1,002 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,284 and an overall rating of 6.8.

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

    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 Bucharest.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bucharest from St. Louis 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 Bucharest?

    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 to Bucharest with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and OTP can sometimes prove cheaper using this method.

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

    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 to Bucharest from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from St. Louis to Bucharest

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Bucharest. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Bucharest? 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.
7.4
United AirlinesOverall score based on 9043 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
6.7Food
Airline reviews

We arrived early and finally made it to our gate almost an hour after.

4.0 OkayZac, Dec 2024ORD - LAX
Read more United Airlines reviews

We arrived early and finally made it to our gate almost an hour after.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

horrible website for checking in- no option just to write the passport number; ludicrous

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

Everything good until we waited for jet bridge at SFO. Then pilot gets on speaker & said it won’t reach plane- too short, need to go to different gate. Then 5 min later, adjusted plane/jetbridge & all ok?!?

Nothing, whole flight was a nightmare, was forced to check my carryon bag at the gate, staff was rude and unprofessional

David went above and beyond to make our flight the best that it could be

Was a pain having to leave the plane and reboard but glad the plane was fixed

How badly can you screw up baggage claim? We were told to go to baggage claim too for our bags from this flight. Another flights bags were there. They finished up. More bags from a different flight arrived. Our bags did not Finally the baggage claim belt stopped working and and are flight was still listed on the arrivals for that baggage claim 2. And then nothing It turns out that they had been delivered not only the United baggage claim but far away on a Delta baggage claim No I never told us. It was only the people looking around who had been on the flight But I’m sure there was plenty of time for the employees to raffle through the bags and steal whatever they wanted

Professional & courteous cabin crew. Food was very good even in economy class

7 stars hospitality and an excellent service by the Turkish Airline entire team. Somehow, our membership numbers for mileage points were not indicated on our boarding passes issued at O’Hare Airport by the Turkish Airlines check in desk. During transit in Istanbul, I brought to attention of customer service Turkish Airlines. Please have our mileage points posted to our membership account from O’Hare Chicago to Lahore for both my wife Kaukab Shirazi Thank you

Terrible boarding experience, with an incomprehensible assignment of priorities. “Fast track” was the slowest. Poor system planning.

Terrible boarding process, no proper line maintained even for business class, crews are not very attentive, business class food quality / variety / quantity have gone down, everything has become cheap.

Check in was not available online. It was super long line to check in

I did not have a good experience from the first point of contact to the check in person to boarding and the comfort of the seats. I would not travel on Turkish again. I will let my family and friends know about my experience which was not a pleasant one.

Food quality and the overall service of the staff and significantly decreased. The flight was delayed at the Istanbul airport and the passengers were kept onboard for more than 3 hours. The staff didn’t kept the passengers informed and everyone was upset.

Cross Atlantic flight terrible aircraft TK10 on the way back : Old configuration tacky . The boarding in Istanbul at the gate fly TK686 was a mess unorganized , very rude ground staff . Overall never again

The food served was frozen salad and hummus. The hot meal was fine. Crew was doing bare minimum

I enjoy flying with Turkish Airlines and such good hospitality among the crew memebers

I have flown with many airlines. My first time was several years ago. Now I remember why I avoided them for so long. Lufthanza is the only airline who has ever raised a size/weight issue with my modest standard size carry on. I had to repack three times to meet their carry-on weight criteria. (Apparently the rules of physics apply differently on Lufthansa flight than on other airlines.) In the meantime their staff was quite rude, repeating meaningless phrases like "Rules are Rules." And ignoring the additional fact that weight is also weight, whether it is in found in your carry on or in your suitcase. They eventually acknowledged that customer service and satisfaction is, for them, a low priority. Never choosing Lufthansa again.

The flight was so FULL That I had to keep BOTH my carry on AND my personal items ON my lap while I was sitting there for 10 hours Because the airline put ALL the other stuff into MY overhead cabin Most uncomfortable 10 hours of any flight I

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

My flight was delayed d the gate was never updated inside the terminal. If I hadn’t checked my email I would have missed my flight. Also, I paid a total of $5100 for my flight to be. Business or first class. My final leg of my flight from Heathrow to Frankfurt was not to standard of what I expected or experienced in the previous legs of my trip.

I requested a wheelchair for they haven’t got it, they are old and don’t speech english

I barely made the flight. We had to take a bus to the plane and the plane smelled awfully of body odor. When the flight attendant walked by she smelled of body odor. It was incredibly uncomfortable. Also my luggage did not make it onto this flight and when it finally arrived home the handle of the luggage was all ripped. I will have to purchase a bag again.

I barely made the flight. We had to take a bus to the plane and the plane smelled awfully of body odor. When the flight attendant walked by she smelled of body odor. It was incredibly uncomfortable.

The flight was ok, the flight attendants were lovely, the movies were good, the food was ok, and I am just sad because my luggage didn't arrive with me in Iasi because the flight from Vancouver to Frankfurt was delayed and then I barely made the rest of my flights. Also, there was no real support once I got off each of the flights. There was nobody to ask about gate or where to be and for example when I got off in Vienna to catch the flight to Iasi there was no screen where I could read the gate and time of departure of the plane. I was going crazy trying to find the plane to Iasi and I barely made it. When my luggage finally arrived home it was broken. The handle was completely broken and that was not so good. I am in a visit here, in Romania, and I will have to buy a new luggage.

They are professional. Nice crew. Still flying Boeing 747. Thank you for that. I love this airplane. Traditional.

Entertainment was good. Food was mediocre. Service was mediocre. New plane was smooth

Book cheap flights from St. Louis to Bucharest

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Bucharest found on KAYAK in the last 72 hours.
4/2Wed
2 stopsBritish Airways
20h 39mSTL-OTP
$487
4/2Wed
2 stopsBritish Airways
26h 29mSTL-OTP
$505
4/2Wed
1 stopUnited Airlines
13h 45mSTL-OTP
$530

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

Information on your arrival and departure airports

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