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STL - OTP

Find cheap flights from St. Louis to Bucharest from $584

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 7/18. 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
0 bags
Sun 5/19
Sun 5/26

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 44,212,662 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:10 am - 12:50 pmSTL-OTP
17h 40m2 stops
6:00 am - 8:01 pmOTP-STL
22h 01m2 stops
Thu, May 2 - Thu, May 9
11:10 am - 11:40 pmSTL-OTP
28h 30m2 stops
1:30 pm - 1:30 pmOTP-STL
32h 00m1 stop
$923Lufthansa
Find Deal
Thu, May 2 - Thu, May 9
5:55 am - 12:20 amSTL-OTP
34h 25m2 stops
9:00 am - 8:56 pmOTP-STL
19h 56m2 stops
$1,074British Airways
Find Deal
Wed, May 29 - Wed, Jun 19
5:25 pm - 5:35 pmSTL-OTP
16h 10m2 stops
1:55 pm - 11:44 pmOTP-STL
17h 49m2 stops
$1,252KLM
Find Deal
Mon, Jul 1 - Mon, Jul 8
7:30 pm - 12:50 amSTL-OTP
45h 20m3 stops
6:30 am - 9:05 pmOTP-STL
22h 35m2 stops
$1,333
Find Deal
Thu, May 2 - Thu, May 9
5:31 pm - 5:50 pmSTL-OTP
40h 19m2 stops
6:15 am - 1:30 pmOTP-STL
15h 15m1 stop
$1,369Lufthansa
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Wed, May 29 - Wed, Jun 19
7:00 am - 8:20 pmSTL-OTP
29h 20m2 stops
9:40 pm - 3:46 pmOTP-STL
26h 06m2 stops
$1,415
Find Deal
Thu, May 2 - Thu, May 9
7:30 pm - 7:50 pmSTL-OTP
40h 20m2 stops
1:30 pm - 1:30 pmOTP-STL
32h 00m1 stop
$1,430
Find Deal
Thu, May 2 - Thu, May 9
3:25 pm - 5:45 pmSTL-OTP
18h 20m1 stop
6:15 am - 1:30 pmOTP-STL
15h 15m1 stop
$1,871Lufthansa
Find Deal
Wed, May 29 - Wed, Jun 19
11:10 am - 6:40 pmSTL-OTP
23h 30m2 stops
2:15 am - 11:59 pmOTP-STL
29h 44m2 stops
$2,318
Find Deal
Thu, May 2 - Wed, May 8

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.

What’s the cheapest day of the week to fly from St. Louis to Bucharest?

The average price of all flights from St. Louis to Bucharest Otopeni Intl Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from St. Louis to Bucharest, look for departures on Mondays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from Bucharest, Monday is the cheapest day to fly and Friday is the most expensive.

Good to know

Cheapest flight

$584
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 $584 for a one-way ticket and $898 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?

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

  • 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 airlines flying 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.
8.0
DeltaOverall score based on 11094 reviews
8.6crew
8.0entertainment
7.9comfort
8.2boarding
7.5food
Airline reviews

Seat back monitors and outlets were dead and not working.

8.0 ExcellentCarl, Apr 2024JFK - FLL
Read more about Delta reviews

Seat back monitors and outlets were dead and not working.

Everything was great except for the seat. The backrest would not stay in the upright position.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

Flight delayed about 2 hrs so it made it a VERY late night

The crew, food, and entertainment were all good. But my screen had some sort of bug where if I turned it off, it would turn back on after 2-5 minutes. At full brightness. It made it very hard to get any shut-eye on the overnight flight. Also, the older Boeing plane, while nicely cared for (and no doors fell off 😅👏) doesn't have the nice air quality of newer planes. So I felt a bit greasy by the time we landed in Sweden.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

Worst flight in my life. Only was scheduled for a 45 min flight to get our connection flight. It was late by 40 minutes and we missed our connection. Delta was totally useless trying to help and unable to get my family on the next flight because they overbooked it Thus had to get a hotel at my expense and lost a day at Disney as a result. Cost me about a $1000 if you add 2 hotels meals shuttles etc to get thru the day Awful customer service by Delta in Detroit totally useless people

The experience was good and the flight departed on time and landed early

The flight was delayed but we got to our final destination.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

I dropped my wallet under my seat on this flight with all of my money and credit card. I requested to be able to go back and retrieve it but Lufthansa denied my request. I went to the Customer Services and they called Lost and Found but I was told nothing found would be turned in until around 12:00pm. My next flight was leaving so I was unable to check to see if my wallet was turned in. I will never fly with Lufthansa again.

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

Dinner was good by air travel standards but breakfast was too light and heavy on carbs/sugar.

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

Horrible crowding on the seats, headphones provided did not fit or work in the entertainment center, seriously the most uncomfortable flight I have taken in a LONG time. The people in front of me were literally 5 inches from my face the entire flight. Did they change their seats recently? I remember it being tight but wow this was a whole new level. Also I am a 5'3" small woman so I can't even imagine a larger person dealing with that for 11 hrs.

Seat controls of lights were broken, and only 1 of the 2 seat TVs ever worked on the long flight. On the short flight there were no USB connections, on the long one they were difficult to access. Part of my meal was frozen, though the hot portion was good.

Lufthansa fails at mentioning no luggage when booking through points. We had to pay added fees to take checked bags to Europe for 2 weeks. The staff at check in were not helpful at all. told us "if we don't like it, then book another flight". Food was bad, they ran out of half the options. Vegetarian was terrible. The flight crew was nice, and tried to make it work ok.

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.
7/18Thu
3 stops
43h 27mSTL-OTP
$584
7/18Thu
2 stops
20h 27mSTL-OTP
$639

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Last minute flights from St. Louis to Bucharest

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Bucharest that are departing in the next 10 days.
4/21Sun
multi-stop
24h 55mSTL-OTP
4/23Tue
multi-stop
17h 46mOTP-STL
$1,393
4/21Sun
multi-stop
31h 30mSTL-OTP
4/23Tue
multi-stop
27h 15mOTP-STL
$1,488
4/21Sun
multi-stop
24h 55mSTL-OTP
4/23Tue
multi-stop
32h 00mOTP-STL
$1,519
4/21Sun
multi-stopLufthansa
22h 50mSTL-OTP
4/23Tue
multi-stopLufthansa
32h 00mOTP-STL
$2,311
4/21Sun
multi-stopLufthansa
13h 25mSTL-OTP
4/23Tue
multi-stopLufthansa
32h 00mOTP-STL
$2,327

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St. Louis - Bucharest Flights

Departure:

St. Louis (STL)United States

Destination:

Bucharest (OTP)Romania

Return flight deals:

Bucharest - St. Louis

Cabin classes: