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$487+ Cheap flights from St. Louis (STL) to Bucharest (BUH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUH
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from St. Louis to Bucharest

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bucharest (BUH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$806
(United)

One-way from

$487
(oojo)
Provider with most accurate pricing for Lambert-St Louis-Bucharest (BUH) flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Bucharest (BUH) flights.
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From Lambert-St Louis to Bucharest (BUH)
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One-way flight from Lambert-St Louis to Bucharest (BUH)
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Find flight deals from St. Louis to Bucharest

Cheapest flights from St. Louis to Bucharest
Explore the most affordable flight options available from St. Louis to Bucharest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This United deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/23:30 pmSTL - OTP
1 stop13h 45mUnited Airlines
Sun 4/136:00 amOTP - STL
2 stops16h 45mUnited Airlines
Deal found 2/20$806
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/93:30 pmSTL - OTP
1 stop18h 25mLufthansa
Wed 5/286:00 amOTP - STL
1 stop15h 30mLufthansa
Deal found 2/19$930
This oojo deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/910:17 amSTL - OTP
2 stops20h 13mBritish Airways
Wed 5/288:25 amOTP - STL
2 stops21h 27mBritish Airways
Deal found 2/19$934
This Gurufare deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/93:30 pmSTL - OTP
1 stop13h 45mMultiple Airlines
Wed 5/286:35 amOTP - STL
2 stops22h 50mMultiple Airlines
Deal found 2/19$939

Find flights from St. Louis to Bucharest within your budget

Customize your flight search to find flights from St. Louis to Bucharest that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

St. Louis

Fly to

Bucharest

Route

Depart

Return

Price

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/2

3:30 pm-1:15 pm

1 stop13h 45m

Bucharest Otopeni Intl

Sun 4/13

6:00 am-2:45 pm

2 stops16h 45m

$806

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/9

3:30 pm-5:55 pm

1 stop18h 25m

Bucharest Otopeni Intl

Wed 5/28

6:00 am-1:30 pm

1 stop15h 30m

$930

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/9

10:17 am-2:30 pm

2 stops20h 13m

Bucharest Otopeni Intl

Wed 5/28

8:25 am-9:52 pm

2 stops21h 27m

$934

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/9

3:30 pm-1:15 pm

1 stop13h 45m

Bucharest Otopeni Intl

Wed 5/28

6:35 am-9:25 pm

2 stops22h 50m

$939

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/2

4:26 pm-8:20 pm

2 stops19h 54m

$487

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/2

3:30 pm-1:15 pm

1 stop13h 45m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Compare providers for flights from St. Louis to Bucharest

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Bucharest in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Bucharest flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Bucharest flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Bucharest flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Bucharest flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Bucharest flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Bucharest

Have a flexible travel schedule? Discover the best time to fly to Bucharest from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Bucharest

Get recent, data-driven insights about flights from St. Louis to Bucharest including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from STL to BUH?

Find hourly flight availability from St. Louis to Bucharest. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

When flying from St. Louis to Bucharest, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 20% versus a flight in the afternoon.

Rainfall in Bucharest by month

Plan your trip to Bucharest by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bucharest ranges from 0.8 - 3.1 inches per month. June is typically the wettest month, when rainfall can reach 3.1 in. October is typically the driest time to visit Bucharest when rainfall is around 0.8 in.

Temperature in Bucharest by month

Plan your trip to Bucharest by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bucharest, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Bucharest

Get insights into the airlines that provide service to Bucharest. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bucharest. Reviews last updated February 20, 2025.
United Airlines
7.4
Good
8,766 reviews

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines
7.4
Good
8,766 reviews
United Airlines
7.4
Good
8,766 reviews

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Lufthansa
6.7
Okay
6,984 reviews
United Airlines
7.4
Good
8,766 reviews

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

British Airways
6.6
Okay
6,763 reviews
United Airlines
7.4
Good
8,766 reviews

Food

6.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Bucharest. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Bucharest?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Bucharest. On average, Lambert-St Louis has 0 outbound flights to Bucharest per day from 2 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • What are the cheapest airlines flying from St. Louis to Bucharest round-trip?

    Currently priced at $806, United Airlines will fly you from St. Louis to Bucharest and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and British Airways - these airlines can fly you to your destination from $930 and $934, respectively.

  • Can I find deals for flights from St. Louis to Bucharest that include hotel bookings?

    Yes. In addition to deals on St. Louis to Bucharest flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Bucharest?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Bucharest.

  • Can I find deals for business class flights from St. Louis to Bucharest?

    Yes. Cheapflights offers flight deals from St. Louis to Bucharest by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Bucharest?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Bucharest (average of $604). Flying from St. Louis to Bucharest in June is currently the most expensive (average of $1,175). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Otopeni

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Top 2 airlines flying from St. Louis to Bucharest

Discover the top 2 airlines that operate flights from St. Louis to Bucharest. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$759Average$961FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$788Average$1,036FlexibilityNo cancel feeOn-time76%
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