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$467+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUH
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$893
(Justfly.com)

One-way from

$467
(FlightHub)
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 June 12, 2025.

This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:30 pmSTL - OTP
1 stop18h 25mMultiple Airlines
Sun 10/51:55 pmOTP - STL
2 stops37h 43mMultiple Airlines
Deal found 6/12$893
This Air Canada deal was found by Cheapflights users on 6/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/99:15 amSTL - OTP
2 stops23h 35mAir Canada
Wed 7/166:00 amOTP - STL
2 stops22h 50mAir Canada
Deal found 6/11$1,012
This United Airlines deal was found by Cheapflights users on 6/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/255:30 pmSTL - OTP
2 stops23h 30mUnited Airlines
Sat 8/91:40 pmOTP - STL
2 stops58h 51mUnited Airlines
Deal found 6/11$1,036
This Gurufare deal was found by Cheapflights users on 6/12. 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.
Sun 7/275:30 pmSTL - OTP
2 stops23h 30mLufthansa
Sun 8/36:05 amOTP - STL
2 stops17h 42mLufthansa
Deal found 6/12$1,105
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/211:29 amSTL - OTP
2 stops17h 31mDelta
Sat 7/267:00 amOTP - STL
2 stops33h 34mDelta
Deal found 6/11$1,290
This KAYAK deal was found by Cheapflights users on 6/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/213:42 pmSTL - OTP
2 stops20h 53mScandinavian Airlines
Thu 7/249:55 pmOTP - STL
2 stops33h 58mScandinavian Airlines
Deal found 6/11$1,596
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/188:10 amSTL - OTP
2 stops16h 00mTurkish Airlines
Mon 7/219:45 pmOTP - STL
2 stops33h 00mTurkish Airlines
Deal found 6/11$1,685

Cheapflights Fare Finder

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 June 12, 2025.
Use the filters below to find and compare flights from St. Louis to Bucharest that are best for you.

Fly from

St. Louis

Fly to

Bucharest

Route

Depart

Return

Price

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 9/26

3:30 pm-5:55 pm

1 stop18h 25m

Bucharest Otopeni Intl

Sun 10/5

1:55 pm-7:38 pm

2 stops37h 43m

$893

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 7/9

9:15 am-4:50 pm

2 stops23h 35m

Bucharest Otopeni Intl

Wed 7/16

6:00 am-8:50 pm

2 stops22h 50m

$1,012

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 7/25

5:30 pm-1:00 am

2 stops23h 30m

Bucharest Otopeni Intl

Sat 8/9

1:40 pm-4:31 pm

2 stops58h 51m

$1,036

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 7/27

5:30 pm-1:00 am

2 stops23h 30m

Bucharest Otopeni Intl

Sun 8/3

6:05 am-3:47 pm

2 stops17h 42m

$1,105

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 7/2

11:29 am-1:00 pm

2 stops17h 31m

Bucharest Otopeni Intl

Sat 7/26

7:00 am-8:34 am

2 stops33h 34m

$1,290

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 10/26

3:03 pm-11:45 pm

2 stops25h 42m

Bucharest Otopeni Intl

Tue 11/4

4:25 pm-7:48 pm

2 stops35h 23m

$2,899

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 10/26

8:01 pm-3:35 pm

2 stops36h 34m

Bucharest Otopeni Intl

Sun 11/2

3:55 pm-4:09 pm

2 stops32h 14m

$2,945

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sat 9/27

1:30 pm-8:35 pm

2 stops23h 05m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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.

Cheapflights Insights

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

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 June 12, 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 June 12, 2025.
Read through reviews of airlines operating flights from St. Louis to Bucharest, such as Delta, United Airlines and Scandinavian Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,387 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,531 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $1,012, Air Canada will fly you from St. Louis to Bucharest and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Lufthansa - these airlines can fly you to your destination from $1,036 and $1,105, 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 $1,146). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$759Average$961FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$788Average$1,036FlexibilityNo cancel feeOn-time76%

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