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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 10 — Feb 171
Tue 2/10
Tue 2/17
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 11, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$507
(oojo)

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 11, 2026.

This oojo deal was found by Cheapflights users on 1/8. 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.
Mon 2/232:00 pmSTL - OTP
2 stops17h 30mBritish Airways
Mon 3/24:00 pmOTP - STL
2 stops33h 58mBritish Airways
Deal found 1/8$507
This United Airlines deal was found by Cheapflights users on 1/8. 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.
Sun 2/226:55 pmSTL - CLJ
2 stops34h 45mUnited Airlines
Sun 3/16:00 amCLJ - STL
2 stops23h 05mUnited Airlines
Deal found 1/8$537
This United Airlines deal was found by Cheapflights users on 1/8. 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 1/213:50 pmSTL - OTP
1 stop14h 10mUnited Airlines
Sun 1/255:55 amOTP - STL
1 stop16h 00mUnited Airlines
Deal found 1/8$569
This United Airlines deal was found by Cheapflights users on 1/8. 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 5/187:30 amSTL - OTP
2 stops20h 30mUnited Airlines
Tue 6/96:05 amOTP - STL
1 stop15h 20mUnited Airlines
Deal found 1/8$593
This Air Canada deal was found by Cheapflights users on 1/9. 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.
Mon 5/187:30 amSTL - OTP
2 stops20h 30mAir Canada
Thu 6/116:20 amOTP - STL
2 stops21h 45mAir Canada
Deal found 1/9$598
This Air Canada deal was found by Cheapflights users on 1/8. 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.
Mon 5/181:00 pmSTL - OTP
2 stops40h 00mAir Canada
Fri 6/126:05 amOTP - STL
2 stops22h 00mAir Canada
Deal found 1/8$604
This United Airlines deal was found by Cheapflights users on 1/9. 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 5/197:30 amSTL - OTP
2 stops21h 30mUnited Airlines
Wed 6/106:05 amOTP - STL
1 stop15h 20mUnited Airlines
Deal found 1/9$605
This United Airlines deal was found by Cheapflights users on 1/9. 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 5/197:30 amSTL - OTP
2 stops21h 30mUnited Airlines
Thu 6/116:05 amOTP - STL
2 stops22h 00mUnited Airlines
Deal found 1/9$608
This United Airlines deal was found by Cheapflights users on 1/8. 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 1/282:45 pmSTL - CLJ
2 stops38h 55mUnited Airlines
Sun 2/12:25 pmCLJ - STL
2 stops37h 02mUnited Airlines
Deal found 1/8$633
This United Airlines deal was found by Cheapflights users on 1/8. 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 2/2510:10 amSTL - SBZ
2 stops24h 05mUnited Airlines
Sun 3/12:30 pmSBZ - STL
2 stops17h 35mUnited Airlines
Deal found 1/8$676
This Lucky2Go deal was found by Cheapflights users on 1/9. 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 Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/255:42 pmSTL - CLJ
3 stops47h 13mMultiple Airlines
Thu 1/2910:50 amCLJ - STL
3 stops44h 43mMultiple Airlines
Deal found 1/9$808
This United Airlines deal was found by Cheapflights users on 1/9. 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.
Sun 1/256:40 pmSTL - CLJ
2 stops35h 00mUnited Airlines
Thu 1/296:00 amCLJ - STL
2 stops21h 27mUnited Airlines
Deal found 1/9$1,256

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 11, 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 2/23

2:00 pm-3:30 pm

2 stops17h 30m

Bucharest Otopeni Intl

Mon 3/2

4:00 pm-5:58 pm

2 stops33h 58m

$507

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Sun 2/22

6:55 pm-1:40 pm

2 stops34h 45m

Cluj Napoca

Sun 3/1

6:00 am-9:05 pm

2 stops23h 05m

$537

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 1/21

3:50 pm-2:00 pm

1 stop14h 10m

Bucharest Otopeni Intl

Sun 1/25

5:55 am-1:55 pm

1 stop16h 00m

$569

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Wed 1/28

2:45 pm-1:40 pm

2 stops38h 55m

Cluj Napoca

Sun 2/1

2:25 pm-7:27 pm

2 stops37h 02m

$633

St. LouisSibiu

STL - SBZ

STLSBZ

Lambert-St Louis

Sun 2/22

3:15 pm-1:45 pm

2 stops14h 30m

Sibiu

Sun 3/1

2:30 pm-12:05 am

2 stops17h 35m

$676

St. LouisSibiu

STL - SBZ

STLSBZ

Lambert-St Louis

Wed 2/25

6:00 pm-6:15 pm

2 stops16h 15m

Sibiu

Sun 3/1

2:30 pm-12:05 am

2 stops17h 35m

$676

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Sun 1/25

5:42 pm-12:55 am

3 stops47h 13m

Cluj Napoca

Thu 1/29

10:50 am-11:33 pm

3 stops44h 43m

$808

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 2/23

11:25 am-2:05 pm

3 stops18h 40m

Bucharest Otopeni Intl

Mon 3/2

5:55 am-3:29 pm

2 stops41h 34m

$1,012

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Sun 1/25

6:40 pm-1:40 pm

2 stops35h 00m

Cluj Napoca

Thu 1/29

6:00 am-7:27 pm

2 stops21h 27m

$1,256

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Sun 1/25

9:57 am-1:40 pm

3 stops19h 43m

Cluj Napoca

Thu 1/29

6:00 am-10:58 pm

3 stops24h 58m

$1,467

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/9

Showing 1-10 of 19 results
1
2

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 11, 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
8,035 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

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
8,035 reviews
Delta
7.9
Good
8,035 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

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
9,145 reviews
Delta
7.9
Good
8,035 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

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
10,610 reviews
Delta
7.9
Good
8,035 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

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
7,710 reviews
Delta
7.9
Good
8,035 reviews

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Overall

7.9

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 17h 30m. 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$784Average$960FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$800Average$1,290FlexibilityNo cancel feeOn-time76%

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