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$562+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OTP
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$795
(United Airlines)

One-way from

$562
(United Airlines)
From Lambert-St Louis to Romania
Search Deals
One-way flight from Lambert-St Louis to Romania
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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 September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:50 pmSTL - OTP
2 stops22h 35mMultiple Airlines
Sat 11/810:55 pmOTP - STL
2 stops23h 00mMultiple Airlines
Deal found 9/9$669
This United Airlines deal was found by Cheapflights users on 9/8. 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 12/31:35 pmSTL - SBZ
2 stops20h 40mUnited Airlines
Sun 12/72:30 pmSBZ - STL
2 stops38h 27mUnited Airlines
Deal found 9/8$795
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:25 pmSTL - OTP
2 stops27h 15mLufthansa
Sun 10/56:00 amOTP - STL
2 stops17h 44mLufthansa
Deal found 9/9$882
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Fri 9/2612:25 pmSTL - OTP
2 stops16h 00mMultiple Airlines
Sun 10/56:30 amOTP - STL
2 stops21h 08mMultiple Airlines
Deal found 9/11$929
This Ovago deal was found by Cheapflights users on 9/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:50 pmSTL - OTP
1 stop14h 10mLufthansa
Sat 11/82:50 pmOTP - STL
1 stop31h 05mLufthansa
Deal found 9/9$1,292

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 September 11, 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

Wed 11/5

3:50 pm-10:25 pm

2 stops22h 35m

Bucharest Otopeni Intl

Sat 11/8

10:55 pm-1:55 pm

2 stops23h 00m

$669

St. LouisSibiu

STL - SBZ

STLSBZ

Lambert-St Louis

Wed 12/3

1:35 pm-6:15 pm

2 stops20h 40m

Sibiu

Sun 12/7

2:30 pm-8:57 pm

2 stops38h 27m

$795

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 9/26

12:25 pm-11:40 pm

2 stops27h 15m

Bucharest Otopeni Intl

Sun 10/5

6:00 am-3:44 pm

2 stops17h 44m

$882

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 9/26

12:25 pm-12:25 pm

2 stops16h 00m

Bucharest Otopeni Intl

Sun 10/5

6:00 am-9:37 pm

2 stops23h 37m

$988

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 11/5

3:50 pm-2:00 pm

1 stop14h 10m

Bucharest Otopeni Intl

Sat 11/8

2:50 pm-1:55 pm

1 stop31h 05m

$1,292

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Tue 11/18

4:05 pm-3:45 pm

2 stops15h 40m

Bucharest Otopeni Intl

Mon 11/24

6:30 am-3:29 pm

2 stops40h 59m

$3,342

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sat 9/27

5:28 pm-6:35 pm

2 stops41h 07m

$562

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sat 9/27

4:05 pm-4:50 pm

2 stops40h 45m

$562

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 9/26

12:25 pm-11:40 pm

2 stops27h 15m

$599

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 9/26

3:30 pm-5:55 pm

1 stop18h 25m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 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

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 September 11, 2025.

When flying from St. Louis to Romania, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 11, 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
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

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
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

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!
Lufthansa
6.8
Okay
7,409 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

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 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 20h 40m. The distance from St. Louis to Romania is about 5323 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from St. Louis to Romania one-way?

    The cheapest airlines for a one-way flight from St. Louis to Romania are United Airlines ($562), Air Canada ($562), and Lufthansa ($599).

  • 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 - Timisoara and Lambert-St Louis - Cluj Napoca.

  • 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.

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

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Romania (average of $604). Flying from St. Louis to Romania in June is currently the most expensive (average of $1,130). 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

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$772Average$1,068FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$784Average$941FlexibilityNo cancel feeOn-time69%

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