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STL - OTP

Find cheap flights from St. Louis to Bucharest from $969

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Bucharest departing on 7/3. 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
Tue 6/11
Tue 6/18

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 42,369,914 times on KAYAK, and here is why:

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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
1:06 pm - 7:10 pmSTL-OTP
22h 04m2 stops
6:30 am - 9:29 pmOTP-STL
22h 59m2 stops
$969Delta
Find Deal
Wed, Jul 3 - Fri, Aug 30
4:22 pm - 8:10 pmSTL-OTP
19h 48m2 stops
8:30 am - 10:24 pmOTP-STL
21h 54m2 stops
$1,018British Airways
Find Deal
Fri, Aug 30 - Fri, Sep 13
11:25 am - 2:00 pmSTL-OTP
18h 35m2 stops
6:30 am - 9:55 pmOTP-STL
23h 25m2 stops
$1,074Delta
Find Deal
Wed, Jun 19 - Wed, Jun 26
4:05 pm - 12:00 pmSTL-OTP
35h 55m2 stops
1:30 pm - 3:21 pmOTP-STL
33h 51m2 stops
$1,093Air Canada
Find Deal
Wed, Jul 10 - Wed, Jul 24
3:25 pm - 11:30 pmSTL-OTP
24h 05m1 stop
6:00 am - 7:29 pmOTP-STL
21h 29m2 stops
$1,122United Airlines
Find Deal
Fri, Aug 30 - Fri, Sep 13
3:25 pm - 11:30 pmSTL-OTP
24h 05m1 stop
6:15 am - 1:30 pmOTP-STL
15h 15m1 stop
$1,144Lufthansa
Find Deal
Fri, Aug 30 - Fri, Sep 13
5:30 pm - 6:35 pmSTL-OTP
17h 05m2 stops
6:15 am - 1:30 pmOTP-STL
15h 15m1 stop
$1,233Lufthansa
Find Deal
Wed, Jul 3 - Fri, Aug 30
12:15 pm - 1:50 amSTL-OTP
29h 35m3 stops
2:35 pm - 12:05 pmOTP-STL
29h 30m3 stops
$1,322
Find Deal
Wed, Jul 10 - Wed, Jul 24
10:10 am - 7:25 pmSTL-OTP
25h 15m3 stops
6:15 am - 3:21 pmOTP-STL
17h 06m2 stops
$1,436
Find Deal
Wed, Jul 10 - Wed, Jul 24
3:25 pm - 5:45 pmSTL-OTP
18h 20m1 stop
6:35 pm - 3:21 pmOTP-STL
28h 46m2 stops
$1,466
Find Deal
Wed, Jul 10 - Wed, Jul 24

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

$969
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 $969 for a round-trip ticket.

  • 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?

    SkyTeam, 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, Delta or Lufthansa?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bucharest are Delta and Lufthansa. With an average price for the route of $1,244 and an overall rating of 8.0, Delta is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,318 and an overall rating of 7.0.

  • 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 10745 reviews
8.2Boarding
7.9Comfort
8.6Crew
8.0Entertainment
7.4Food
Airline reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

10.0 ExcellentSash, May 2024SEA - HNL
Read more about Delta reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

The plane was FREEZING SEATS UNCOMFORTABLE Otherwise smooth Thank you

Boarding was chaotic. I didn’t finish dinner because I went to bed early. Breakfast omelet was overcooked and tasteless but croissant was better than usual. Plane was dirty—crumbs in every seam and lavatory was poorly maintained (paint peeling, etc.) and toilet paper had not been refreshed before takeoff. No cubby for storage in first and seat was narrow.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

West Jet has a horrible boarding process and the seats have no cushion.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

Everything could be better. The plain was in Orlando for 3 hours prior to boarding. After boarding all the passengers they found out that plane has a mechanical problem. After an hour the problem was solved, the pilot comes on and states, (We have to go back to the gate and take on more fuel!) Are you kidding me???? Who they have for pilots, Boy scouts?? I barely made my connecting flight to Vienna, but my suitcase did not. I'm still waiting for it, in Gyor, Hungary. Am I having fun yet?? Other passenger were in the same binned. I travelled all over the world both for business and pleasure with all types of airlines. By far of all the carriers I travelled with, Discover is the worst. I'm contemplating to bight the bullet and go back to the US with a different carrier. For International flights, the seats are made for little people. The person in front of me had his seat reclined the whole way, I felt like he was sitting in my lap. For closing, I would not let my dog travel with Discover, yet alone recommend it to an other person. Does it sound like I'm frustrated, Think about having to travel back to the US with them. I'm sure I'll not hear back from you, because nobody wants to hear about bad news, but with all the hype Discover puts out there about their services, nothing could be further from the truth. Joseph A. Nagy

Only problem we experienced was not anything to do with Lufthansa. When changing planes in Frankfurt we spent over an hour on passport control line. Lufthansa did a marvelous job on everything from keeping me informed via texts, to terrific cabin crew.

Bordón could be bettet if the company say before boarding the order of the different groups.

Checked in is easy and it was a smooth flight from LAX to Munich

There is no recline on flight from DFW to FRA. Middle eastern airways provide better recline option for the same class. FRA to Bangalore has better recline option. I bid 100$ for premium economy, my request was declined. But staff handled it without issues.

The Lufthansa part was wonderful. The short connection flight was not.

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Awful Terrible staff poor communication Flight delayed for an hour with no apology or explanation and no help re missing connecting flight. Resulted in a 7 hour layover at Munich waiting for another connecting flight. Only 15 euros refreshment voucher given. Will not fly Lufthansa again

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

It was a busy flight and all the crew were very helpful and gracious

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.
5/14Tue
multi-stop
20h 45mSTL-OTP
6/4Tue
multi-stop
38h 10mOTP-STL
$1,315
5/14Tue
multi-stop
21h 35mSTL-OTP
6/5Wed
multi-stop
17h 06mOTP-STL
$1,413
5/13Mon
multi-stop
35h 10mSTL-OTP
6/4Tue
multi-stop
17h 06mOTP-STL
$1,430
5/14Tue
multi-stop
20h 45mSTL-OTP
6/4Tue
multi-stop
17h 06mOTP-STL
$1,448
5/13Mon
multi-stop
26h 20mSTL-OTP
6/4Tue
multi-stop
17h 06mOTP-STL
$1,450
5/14Tue
multi-stop
25h 10mSTL-OTP
6/5Wed
multi-stop
15h 15mOTP-STL
$1,461
5/13Mon
multi-stop
26h 20mSTL-OTP
6/4Tue
multi-stop
26h 55mOTP-STL
$1,491
5/14Tue
multi-stop
32h 55mSTL-OTP
6/5Wed
multi-stop
17h 06mOTP-STL
$1,524
5/14Tue
multi-stop
26h 10mSTL-OTP
6/4Tue
multi-stop
26h 55mOTP-STL
$1,551
5/13Mon
multi-stopEmirates
37h 20mSTL-OTP
6/3Mon
multi-stopEmirates
25h 27mOTP-STL
$12,337

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St. Louis - Bucharest Flights

Departure:

St. Louis (undefined)United States

Destination:

Bucharest (OTP)Romania

Return flight deals:

Bucharest - St. Louis

Cabin classes: