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

Lufthansa and Air Canada can get you from Romania to St. Louis in just under 19h 48m. Your travel time can differ by up to 2h 30m. The distance between Romania and St. Louis is about 5451 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Romania to St. Louis as you normally would.

What airport do you fly into for flights to St. Louis from Romania?

Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Romania. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

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

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

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

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

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

$451+ Flights from Romania to St. Louis

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Cheap flight deals from Romania to St. Louis

Cheapest flights from Romania to St. Louis
Explore the most affordable flight options available from Romania to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

Thu 9/241:50 pm

CLJ

STL

2 stops36h 27m

Air Canada

Mon 9/281:30 pm

STL

CLJ

2 stops19h 55m

Air Canada

Deal found 1/23

$960

Tue 2/105:55 am

OTP

STL

2 stops19h 48m

Lufthansa

Sat 2/1412:15 pm

STL

OTP

2 stops16h 05m

Lufthansa

Deal found 1/25

$962

Wed 2/46:05 am

OTP

STL

2 stops25h 54m

United Airlines

Sat 2/78:45 am

STL

OTP

2 stops31h 05m

United Airlines

Deal found 1/25

$963

Tue 2/106:55 am

OTP

STL

3 stops22h 18m

Multiple Airlines

Sat 2/144:05 pm

STL

OTP

2 stops38h 00m

Multiple Airlines

Deal found 1/25

$1,075

Tue 2/106:55 am

OTP

STL

3 stops22h 18m

Air Canada

Sat 2/149:55 am

STL

OTP

3 stops18h 35m

Air Canada

Deal found 1/25

$1,264

Best flights from Romania to St. Louis
Discover carefully curated flight deals from Romania to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 26, 2026.

Tue 2/105:55 am

OTP

STL

2 stops19h 48m

Lufthansa

Sat 2/1412:15 pm

STL

OTP

2 stops16h 05m

Lufthansa

Deal found 1/25

$962

Tue 2/106:55 am

OTP

STL

3 stops22h 18m

Multiple Airlines

Sat 2/144:05 pm

STL

OTP

2 stops38h 00m

Multiple Airlines

Deal found 1/25

$1,075

Tue 2/106:55 am

OTP

STL

3 stops22h 18m

Air Canada

Sat 2/149:55 am

STL

OTP

3 stops18h 35m

Air Canada

Deal found 1/25

$1,264

Last-minute flights from Romania to St. Louis
Discover last-minute flight deals from Romania to St. Louis. Data last updated January 26, 2026 and is based on user searches.

Wed 2/46:05 am

OTP

STL

2 stops25h 54m

United Airlines

Sat 2/78:45 am

STL

OTP

2 stops31h 05m

United Airlines

Deal found 1/25

$963

Tue 2/105:55 am

OTP

STL

2 stops19h 48m

Lufthansa

Sat 2/1412:15 pm

STL

OTP

2 stops16h 05m

Lufthansa

Deal found 1/25

$962

Tue 2/106:55 am

OTP

STL

3 stops22h 18m

Multiple Airlines

Sat 2/144:05 pm

STL

OTP

2 stops38h 00m

Multiple Airlines

Deal found 1/25

$1,075

Tue 2/106:55 am

OTP

STL

3 stops22h 18m

Air Canada

Sat 2/149:55 am

STL

OTP

3 stops18h 35m

Air Canada

Deal found 1/25

$1,264

One-way flights from Romania to St. Louis
Search for one-way flight options from Romania to St. Louis. Find affordable one-way fares based on user searches. Data last updated January 26, 2026.

Fri 4/108:15 am

OTP

STL

2 stops23h 33m

British Airways

Deal found 1/25

$451

Tue 5/266:10 pm

OTP

STL

1 stop33h 20m

British Airways

Deal found 1/24

$489

Fri 4/109:30 am

OTP

STL

3 stops57h 00m

Multiple Airlines

Deal found 1/25

$553

Tue 5/266:00 am

OTP

STL

3 stops43h 06m

Multiple Airlines

Deal found 1/24

$586

Mon 6/86:50 am

OTP

STL

3 stops41h 00m

Multiple Airlines

Deal found 1/24

$665

Fri 4/106:05 am

OTP

STL

1 stop15h 20m

Lufthansa

Deal found 1/25

$775

Find flight deals from Romania to St. Louis

Round-trip from	$962 (Lufthansa)
One-way from	$451 (British Airways)
Popular in	May
Cheapest in	March
Average price	$699

From Romania to Lambert-St Louis

Search Deals

One-way flight from Romania to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($64 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Tue 2/10

5:55 am-5:43 pm

2 stops19h 48m

Lambert-St Louis

Sat 2/14

12:15 pm-12:20 pm

2 stops16h 05m

$962

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Tue 2/10

6:55 am-9:13 pm

3 stops22h 18m

Lambert-St Louis

Sat 2/14

4:05 pm-2:05 pm

2 stops38h 00m

$1,075

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Tue 2/10

6:55 am-9:13 pm

3 stops22h 18m

Lambert-St Louis

Sat 2/14

9:55 am-12:30 pm

3 stops18h 35m

$1,264

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Fri 4/10

8:15 am-11:48 pm

2 stops23h 33m

$451

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Mon 6/8

8:15 am-11:44 pm

2 stops23h 29m

$451

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Tue 5/26

8:15 am-8:26 pm

2 stops20h 11m

$451

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Fri 4/10

9:30 am-10:30 am

3 stops57h 00m

$553

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Tue 5/26

6:00 am-5:06 pm

3 stops43h 06m

$586

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Mon 6/8

6:50 am-3:50 pm

3 stops41h 00m

$665

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Fri 4/10

6:05 am-1:25 pm

1 stop15h 20m

$775

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Best time to book a flight from Romania to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Romania 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 Romania to St. Louis

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to St. Louis from Romania?
Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Romania. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.
How long is the flight from Romania to St. Louis?
Lufthansa and Air Canada can get you from Romania to St. Louis in just under 19h 48m. Your travel time can differ by up to 2h 30m. The distance between Romania and St. Louis is about 5451 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
Can I find deals for flights from Romania to St. Louis that include hotel bookings?
Yes. In addition to deals on Romania to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Romania to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Romania to St. Louis.
Can I find deals for business class flights from Romania to St. Louis?
Yes. Cheapflights offers flight deals from Romania to St. Louis 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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$451+ Cheap flights from Romania to St. Louis (STL)

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Romania to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Romania to St. Louis

Cheapest flights from Romania to St. LouisExplore the most affordable flight options available from Romania to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

Explore the most affordable flight options available from Romania to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

Find flight deals from Romania to St. Louis

Keep the following information in mind while searching for Romania to St. Louis flight deals. Data was last updated January 26, 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Romania to St. Louis that are best for you.

Best time to book a flight from Romania to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Romania with our price prediction graph.

Cheapflights Insights

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

Related info for your journey

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

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

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

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

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

Traveling to a place near St. Louis?

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Cheapest flights from Romania to St. Louis
Explore the most affordable flight options available from Romania to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.