When did momondo last update prices for flights from Lambert-St Louis Airport to Romania?

Prices for flights from Lambert-St Louis Airport to Romania were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Romania?

As of October 2025, there are 2 operators available to choose from for flights from Lambert-St Louis Airport to Romania.

How old do you have to be to fly from Lambert-St Louis Airport to Romania?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Romania.

What documentation or ID do you need to fly to Romania?

The necessary travel and health documents for your Romania trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$590 Cheap Flights from St. Louis to Romania in 2025/26

1 adult

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Find the cheapest flights from St. Louis to Romania

Round-trip

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:50 pm - 2:05 pmSTL-OTP

14h 15m1 stop

6:05 am - 2:55 pmOTP-STL

15h 50m1 stop

$590Lufthansa

Find Deal

Sun, Mar 8 - Wed, Mar 18

4:50 pm - 6:25 pmSTL-OTP

18h 35m1 stop

6:05 am - 11:50 pmOTP-STL

24h 45m2 stops

$599Lufthansa

Find Deal

Sun, Mar 8 - Wed, Mar 18

4:05 pm - 6:25 pmSTL-OTP

19h 20m2 stops

6:05 am - 3:29 pmOTP-STL

40h 24m2 stops

$609Multiple Airlines

Find Deal

Sun, Mar 8 - Wed, Mar 18

5:18 pm - 6:35 pmSTL-OTP

17h 17m2 stops

6:05 am - 1:30 pmOTP-STL

15h 25m1 stop

$630Lufthansa

Find Deal

Fri, Apr 10 - Fri, Apr 17

5:18 pm - 6:35 pmSTL-OTP

17h 17m2 stops

6:00 am - 1:30 pmOTP-STL

15h 30m1 stop

$639United Airlines

Find Deal

Fri, Apr 10 - Fri, Apr 17

8:00 am - 1:40 pmSTL-CLJ

22h 40m2 stops

6:00 am - 5:14 pmCLJ-STL

19h 14m2 stops

$644United Airlines

Find Deal

Fri, Mar 27 - Tue, Mar 31

3:30 pm - 1:05 pmSTL-OTP

13h 35m1 stop

6:05 am - 1:30 pmOTP-STL

15h 25m1 stop

$647Multiple Airlines

Find Deal

Fri, Apr 10 - Fri, Apr 17

10:56 am - 3:10 pmSTL-OTP

20h 14m2 stops

8:00 am - 1:25 amOTP-STL

25h 25m2 stops

$743British Airways

Find Deal

Fri, Dec 12 - Fri, Dec 19

4:05 pm - 6:25 pmSTL-OTP

19h 20m2 stops

6:05 am - 9:00 pmOTP-STL

21h 55m3 stops

$754Air Canada

Find Deal

Sun, Mar 8 - Wed, Mar 18

4:05 pm - 1:40 pmSTL-CLJ

14h 35m2 stops

6:00 am - 3:24 pmCLJ-STL

41h 24m2 stops

$989Air Canada

Find Deal

Fri, Mar 27 - Tue, Mar 31

United Airlines flights from St. Louis to Romania

Our best United Airlines deals on St. Louis to Romania flight tickets

United Airlines

Apr 10

STL5:18 pmLambert-St Louis

17h 17m

2 stops

OTP6:35 pmBucharest Otopeni Intl

Apr 17

OTP6:00 amBucharest Otopeni Intl

15h 30m

1 stop

STL1:30 pmLambert-St Louis

$639

Find similar

United Airlines

Mar 27

STL8:00 amLambert-St Louis

22h 40m

2 stops

CLJ1:40 pmCluj Napoca

Mar 31

CLJ6:00 amCluj Napoca

19h 14m

2 stops

STL5:14 pmLambert-St Louis

$644

Find similar

United Airlines

Apr 1

STL5:18 pmLambert-St Louis

17h 17m

2 stops

OTP6:35 pmBucharest Otopeni Intl

Apr 18

OTP6:00 amBucharest Otopeni Intl

21h 25m

2 stops

STL7:25 pmLambert-St Louis

$648

Find similar

Lufthansa flights from St. Louis to Romania

Our best Lufthansa deals on St. Louis to Romania flight tickets

Lufthansa

Mar 8

STL4:50 pmLambert-St Louis

14h 15m

1 stop

OTP2:05 pmBucharest Otopeni Intl

Mar 18

OTP6:05 amBucharest Otopeni Intl

15h 50m

1 stop

STL2:55 pmLambert-St Louis

$590

Find similar

Lufthansa

Mar 8

STL4:50 pmLambert-St Louis

18h 35m

1 stop

OTP6:25 pmBucharest Otopeni Intl

Mar 18

OTP6:05 amBucharest Otopeni Intl

24h 45m

2 stops

STL11:50 pmLambert-St Louis

$599

Find similar

Lufthansa

Apr 10

STL5:18 pmLambert-St Louis

17h 17m

2 stops

OTP6:35 pmBucharest Otopeni Intl

Apr 17

OTP6:05 amBucharest Otopeni Intl

15h 25m

1 stop

STL1:30 pmLambert-St Louis

$630

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 3/8

4:50 pm-2:05 pm

1 stop14h 15m

Bucharest Otopeni Intl

Wed 3/18

6:05 am-2:55 pm

1 stop15h 50m

$590

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 3/8

4:50 pm-6:25 pm

1 stop18h 35m

Bucharest Otopeni Intl

Wed 3/18

6:05 am-11:50 pm

2 stops24h 45m

$599

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 3/8

4:05 pm-6:25 pm

2 stops19h 20m

Bucharest Otopeni Intl

Wed 3/18

6:05 am-3:29 pm

2 stops40h 24m

$609

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 4/10

5:18 pm-6:35 pm

2 stops17h 17m

Bucharest Otopeni Intl

Fri 4/17

6:05 am-1:30 pm

1 stop15h 25m

$630

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 4/10

5:18 pm-6:35 pm

2 stops17h 17m

Bucharest Otopeni Intl

Fri 4/17

6:00 am-1:30 pm

1 stop15h 30m

$639

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Fri 3/27

8:00 am-1:40 pm

2 stops22h 40m

Cluj Napoca

Tue 3/31

6:00 am-5:14 pm

2 stops19h 14m

$644

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 4/10

3:30 pm-1:05 pm

1 stop13h 35m

Bucharest Otopeni Intl

Fri 4/17

6:05 am-1:30 pm

1 stop15h 25m

$647

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 12/12

10:56 am-3:10 pm

2 stops20h 14m

Bucharest Otopeni Intl

Fri 12/19

8:00 am-1:25 am

2 stops25h 25m

$743

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 3/8

4:05 pm-6:25 pm

2 stops19h 20m

Bucharest Otopeni Intl

Wed 3/18

6:05 am-9:00 pm

3 stops21h 55m

$754

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Fri 3/27

4:05 pm-1:40 pm

2 stops14h 35m

Cluj Napoca

Tue 3/31

6:00 am-3:24 pm

2 stops41h 24m

$989

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Romania

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Romania?

The cheapest day to depart on your flight to Romania is on a Saturday when prices can be found for as low as $813. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,473. These prices are subject to change though, so be sure to set up a Price Alert for flights to Romania.

What is the cheapest time of day to depart on your flight to Romania?

Our most recent data shows that the best time of day to fly to Romania is in the morning. Flights from St. Louis to Romania during this time can be as low as $1,059. Try not to purchase tickets in the afternoon because they tend to be around $1,313. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap St. Louis to Romania flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Romania

Direct flights	None

There are no direct flights from St. Louis to Romania. There are no popular flight routes from St. Louis to Romania.

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Romania?
Prices for flights from Lambert-St Louis Airport to Romania were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Romania?
As of October 2025, there are 2 operators available to choose from for flights from Lambert-St Louis Airport to Romania.
How old do you have to be to fly from Lambert-St Louis Airport to Romania?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Romania.
What documentation or ID do you need to fly to Romania?
The necessary travel and health documents for your Romania trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Romania

Compare and see reviews for airlines that fly from St. Louis to Romania with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $780	Free Cancellation	Rating 6.8 7,541 reviews		Search Lufthansa flights
United Airlines	PriceFrom $784	Free Cancellation	Rating 7.4 8,998 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Romania?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Romania from St. Louis.

Can I find flights from St. Louis to Romania with flexible booking policies on momondo?

momondo does allow users to show only those flights to Romania from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Romania?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Romania from St. Louis.

I’m not ready to book a flight from St. Louis to Romania right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Romania from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.