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$439+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OTP
janv. 17 — janv. 241
sam. 1/17
sam. 1/24
1 adult, Economy
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Cheap 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 décembre 18, 2025.

This SmartFares deal was found by Cheapflights users on 12/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/263:50 pmSTL - OTP
1 stop14h 20mLufthansa
mer. 12/316:05 amOTP - STL
1 stop15h 50mLufthansa
Deal found 12/17$1,670
This Gurufare deal was found by Cheapflights users on 12/17. 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.
mar. 12/236:35 pmSTL - OTP
2 stops45h 20mLufthansa
mer. 12/312:40 pmOTP - STL
2 stops33h 47mLufthansa
Deal found 12/17$1,770
This Ovago deal was found by Cheapflights users on 12/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:35 pmSTL - OTP
2 stops45h 20mLufthansa
dim. 12/285:55 amOTP - STL
1 stop16h 00mLufthansa
Deal found 12/16$1,801
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/265:35 amSTL - OTP
2 stops22h 40mMultiple Airlines
mer. 12/316:15 amOTP - STL
3 stops36h 41mMultiple Airlines
Deal found 12/17$1,849
This Delta deal was found by Cheapflights users on 12/17. 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.
mar. 12/235:59 pmSTL - OTP
2 stops20h 51mDelta
dim. 12/286:00 amOTP - STL
2 stops24h 16mDelta
Deal found 12/17$1,960
This Air Canada deal was found by Cheapflights users on 12/16. 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.
mar. 12/236:35 pmSTL - OTP
3 stops33h 55mMultiple Airlines
dim. 12/285:55 amOTP - STL
2 stops41h 34mMultiple Airlines
Deal found 12/16$2,101
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/235:30 amSTL - OTP
3 stops30h 00mMultiple Airlines
mer. 12/316:05 amOTP - STL
2 stops15h 50mMultiple Airlines
Deal found 12/17$2,332

Find 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 décembre 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$494
(Kiwi.com)

One-way from

$439
(American Airlines)

Popular in

June

Cheapest in

November

Average price

$1,017
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.
Search Deals
From Lambert-St Louis to Romania
Search Deals
One-way flight from Lambert-St Louis to Romania
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($260 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 décembre 18, 2025.
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

ven. 1/30

3:50 pm-2:10 pm

1 stop14h 20m

Bucharest Otopeni Intl

ven. 2/6

5:55 am-11:59 pm

2 stops26h 04m

$494

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

ven. 1/30

12:11 pm-11:25 pm

2 stops27h 14m

Bucharest Otopeni Intl

ven. 2/6

4:45 pm-6:13 pm

2 stops33h 28m

$537

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

jeu. 1/29

8:05 am-1:40 pm

2 stops21h 35m

Cluj Napoca

lun. 2/2

6:00 am-3:29 pm

2 stops41h 29m

$543

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

ven. 1/30

3:50 pm-2:10 pm

1 stop14h 20m

Bucharest Otopeni Intl

mar. 2/3

5:55 am-3:15 pm

2 stops41h 20m

$555

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

jeu. 1/29

6:30 am-2:05 pm

2 stops23h 35m

Bucharest Otopeni Intl

lun. 2/2

5:55 am-10:00 pm

2 stops24h 05m

$563

St. LouisSibiu

STL - SBZ

STLSBZ

Lambert-St Louis

jeu. 2/5

8:30 am-1:45 pm

2 stops21h 15m

Sibiu

lun. 2/9

2:30 pm-3:29 pm

2 stops56h 59m

$697

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

sam. 4/4

6:02 pm-5:25 pm

2 stops39h 23m

Cluj Napoca

mar. 4/21

6:00 am-8:45 pm

2 stops22h 45m

$702

St. LouisTimisoara

STL - TSR

STLTSR

Lambert-St Louis

sam. 1/31

4:49 pm-12:25 am

2 stops23h 36m

Timisoara

sam. 2/7

6:10 am-11:59 pm

2 stops25h 49m

$704

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

ven. 4/3

6:35 pm-12:30 am

2 stops21h 55m

Cluj Napoca

mer. 4/22

1:50 pm-9:03 pm

2 stops15h 13m

$731

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

ven. 1/30

3:37 pm-11:25 pm

2 stops23h 48m

Bucharest Otopeni Intl

mar. 2/3

4:40 pm-9:15 pm

2 stops36h 35m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 20 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

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

Find hourly flight availability from St. Louis to Romania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated décembre 18, 2025.

It’s optimal to fly from St. Louis to Romania in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the morning.

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 décembre 18, 2025.
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
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
8,005 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
9,091 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
10,534 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
7,634 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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 14h 20m. 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

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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 décembre 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$784Average$960FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$800Average$1,160FlexibilityNo cancel feeOn-time76%

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