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$292+ Cheap flights from St. Louis (STL) to Romania

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OTP
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from St. Louis to Romania

Keep the following information in mind while searching for St. Louis to Romania flight deals. Data was last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$568
(United Airlines)

One-way from

$292
(Cheapflightsfares)

Popular in

June

Cheapest in

November
Provider with most accurate pricing for Lambert-St Louis-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Bucharest (BUH) flights.
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From Lambert-St Louis to Romania
Search Deals
One-way flight from Lambert-St Louis to Romania
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Highest demand for flights based on searches. 20% potential increase in price ($251 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Find flight deals from St. Louis to Romania

Cheapest flights from St. Louis to Romania
Explore the most affordable flight options available from St. Louis to Romania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This oojo deal was found by Cheapflights users on 1/13. 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.
Sun 2/16:00 am
STL
-
OTP
2 stops24h 55m
British Airways
Fri 2/138:00 am
OTP
-
STL
2 stops22h 52m
British Airways
Deal found 1/13$494
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Tue 3/316:35 pm
STL
-
OTP
2 stops16h 00m
United Airlines
Fri 4/176:05 am
OTP
-
STL
1 stop15h 20m
United Airlines
Deal found 1/13$507
This Delta deal was found by Cheapflights users on 1/13. 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.
Mon 3/3012:04 pm
STL
-
OTP
2 stops16h 41m
Delta
Thu 4/167:00 am
OTP
-
STL
2 stops24h 12m
Delta
Deal found 1/13$510
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Mon 3/306:35 pm
STL
-
OTP
2 stops22h 35m
United Airlines
Wed 4/156:05 am
OTP
-
STL
1 stop15h 20m
United Airlines
Deal found 1/13$511
This FlightHub deal was found by Cheapflights users on 1/13. 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.
Sat 3/284:05 pm
STL
-
OTP
2 stops35h 55m
Multiple Airlines
Wed 4/156:05 am
OTP
-
STL
1 stop15h 20m
Multiple Airlines
Deal found 1/13$514
This British Airways deal was found by Cheapflights users on 1/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/111:59 am
STL
-
OTP
2 stops18h 36m
British Airways
Fri 4/178:15 am
OTP
-
STL
2 stops22h 49m
British Airways
Deal found 1/13$515
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Wed 4/13:30 pm
STL
-
OTP
1 stop16h 50m
United Airlines
Wed 4/156:05 am
OTP
-
STL
1 stop15h 20m
United Airlines
Deal found 1/13$518
This Air Canada deal was found by Cheapflights users on 1/13. 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.
Sat 3/284:05 pm
STL
-
OTP
2 stops35h 55m
Air Canada
Tue 4/146:05 am
OTP
-
STL
2 stops41h 19m
Air Canada
Deal found 1/13$522
This British Airways deal was found by Cheapflights users on 1/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3111:59 am
STL
-
OTP
2 stops29h 21m
British Airways
Mon 4/133:40 pm
OTP
-
STL
2 stops40h 08m
British Airways
Deal found 1/13$523
This KAYAK deal was found by Cheapflights users on 1/13. 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.
Sun 3/296:50 pm
STL
-
OTP
2 stops38h 30m
British Airways
Wed 4/158:15 am
OTP
-
STL
2 stops21h 59m
British Airways
Deal found 1/13$524
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Wed 4/13:30 pm
STL
-
OTP
1 stop16h 50m
United Airlines
Thu 4/166:05 am
OTP
-
STL
2 stops17h 19m
United Airlines
Deal found 1/13$526
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Thu 1/2911:22 am
STL
-
CLJ
2 stops18h 18m
United Airlines
Mon 2/22:25 pm
CLJ
-
STL
2 stops52h 11m
United Airlines
Deal found 1/14$568

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Romania 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 January 15, 2026.
Use the filters below to find and compare flights from St. Louis to Romania that are best for you.

Fly from

St. Louis

Fly to

Romania

Route

Depart

Return

Price

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 3/30

12:04 pm-12:45 pm

2 stops16h 41m

Bucharest Otopeni Intl

Thu 4/16

7:00 am-11:12 pm

2 stops24h 12m

$510

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/1

10:00 am-6:35 pm

2 stops24h 35m

Bucharest Otopeni Intl

Wed 4/15

6:05 am-1:25 pm

1 stop15h 20m

$511

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 3/30

6:35 pm-1:10 am

2 stops22h 35m

Bucharest Otopeni Intl

Wed 4/15

6:05 am-1:25 pm

1 stop15h 20m

$511

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/1

11:15 am-6:35 pm

2 stops23h 20m

Bucharest Otopeni Intl

Fri 4/17

6:05 am-1:25 pm

1 stop15h 20m

$511

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Tue 3/31

6:35 pm-6:35 pm

2 stops16h 00m

Bucharest Otopeni Intl

Wed 4/15

6:05 am-9:08 pm

2 stops23h 03m

$512

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 3/30

2:19 pm-5:20 pm

2 stops19h 01m

Bucharest Otopeni Intl

Tue 4/14

8:15 am-11:04 pm

2 stops22h 49m

$515

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 4/1

11:59 am-2:35 pm

2 stops18h 36m

Bucharest Otopeni Intl

Thu 4/16

8:15 am-11:04 pm

2 stops22h 49m

$515

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 3/30

12:28 pm-12:45 pm

2 stops16h 17m

Bucharest Otopeni Intl

Mon 4/13

2:00 pm-4:42 pm

2 stops34h 42m

$518

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 3/29

6:50 pm-5:20 pm

2 stops38h 30m

Bucharest Otopeni Intl

Tue 4/14

8:15 am-10:14 pm

2 stops21h 59m

$524

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Tue 3/31

6:35 pm-6:35 pm

2 stops16h 00m

Bucharest Otopeni Intl

Tue 4/14

1:50 pm-1:25 pm

1 stop31h 35m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 31 results
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Best time to book a flight from St. Louis to Romania

Have a flexible travel schedule? Discover the best time to fly to Romania 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 Romania
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Romania

Get insights into the airlines that provide service to Romania. 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 Romania. Reviews last updated January 15, 2026.
See what other customers who have flown with Delta, United Airlines, and Air Canada from St. Louis to Romania have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,051 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,051 reviews
Delta
7.9
Good
8,051 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,164 reviews
Delta
7.9
Good
8,051 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,624 reviews
Delta
7.9
Good
8,051 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,718 reviews
Delta
7.9
Good
8,051 reviews

Comfort

7.9

Overall

7.9

Entertainment

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Romania. 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 Romania?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Romania.

  • How long is the flight from St. Louis to Romania?

    Departing from St. Louis to Romania will take you 16h 41m. The distance from St. Louis to Romania is about 5451 mi. This flight may include one or multiple stops.

  • What are the most popular routes from St. Louis to Romania?

    The most popular flight routes from St. Louis to Romania are Lambert-St Louis - Bucharest Otopeni Intl, Lambert-St Louis - Cluj Napoca and Lambert-St Louis - Sibiu.

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

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

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

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

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

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

See more FAQs

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Alternative routes for St. Louis to Romania

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from St. Louis to Romania

Discover the top 2 airlines that operate flights from St. Louis to Romania. 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$780Average$1,329FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$784Average$960FlexibilityNo cancel feeOn-time69%

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