What is the cheapest airline that flies from Lambert-St Louis to Romania?

American Airlines, British Airways, and United Airlines are the most popular carriers operating from Lambert-St Louis to Romania

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 December 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.

$439 Cheap Flights from St. Louis to Romania in 2025/26

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Find the cheapest flights from St. Louis to Romania

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:50 pm - 2:10 pm

STL

OTP

14h 20m1 stop

5:55 am - 11:59 pm

OTP

STL

26h 04m2 stops

$494Lufthansa

Fri, Jan 30 - Fri, Feb 6

12:11 pm - 11:25 pm

STL

OTP

27h 14m2 stops

4:45 pm - 6:13 pm

OTP

STL

33h 28m2 stops

$537British Airways

Fri, Jan 30 - Fri, Feb 6

8:05 am - 1:40 pm

STL

CLJ

21h 35m2 stops

6:00 am - 3:29 pm

CLJ

STL

41h 29m2 stops

$543United Airlines

Thu, Jan 29 - Mon, Feb 2

3:50 pm - 2:10 pm

STL

OTP

14h 20m1 stop

5:55 am - 3:15 pm

OTP

STL

41h 20m2 stops

$555United Airlines

Fri, Jan 30 - Tue, Feb 3

11:22 am - 2:10 pm

STL

OTP

18h 48m2 stops

5:55 am - 3:15 pm

OTP

STL

41h 20m2 stops

$559United Airlines

Fri, Jan 30 - Tue, Feb 3

6:30 am - 2:05 pm

STL

OTP

23h 35m2 stops

5:55 am - 10:00 pm

OTP

STL

24h 05m2 stops

$563United Airlines

Thu, Jan 29 - Mon, Feb 2

4:05 pm - 5:25 pm

STL

CLJ

17h 20m3 stops

6:00 am - 3:24 pm

CLJ

STL

41h 24m2 stops

$811Multiple Airlines

Sat, Apr 4 - Tue, Apr 21

4:05 pm - 12:30 am

STL

CLJ

24h 25m2 stops

6:00 am - 9:03 pm

CLJ

STL

23h 03m3 stops

$840Multiple Airlines

Fri, Apr 3 - Wed, Apr 22

8:26 am - 1:10 pm

STL

CLJ

20h 44m3 stops

6:00 am - 9:03 pm

CLJ

STL

23h 03m3 stops

$874Air Canada

Fri, Apr 3 - Wed, Apr 22

4:05 pm - 5:25 pm

STL

CLJ

17h 20m3 stops

6:00 am - 9:03 pm

CLJ

STL

23h 03m3 stops

$906Air Canada

Sat, Apr 4 - Tue, Apr 21

Lufthansa flights from St. Louis to Romania

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

Lufthansa

Jan 30

STL3:50 pmLambert-St Louis

14h 20m

1 stop

OTP2:10 pmBucharest Otopeni Intl

Feb 6

OTP5:55 amBucharest Otopeni Intl

26h 04m

2 stops

STL11:59 pmLambert-St Louis

$494

Find similar

Lufthansa

Jan 31

STL4:49 pmLambert-St Louis

23h 36m

2 stops

TSR12:25 amTimisoara

Feb 7

TSR6:10 amTimisoara

25h 49m

2 stops

STL11:59 pmLambert-St Louis

$704

Find similar

Lufthansa

Apr 3

STL6:35 pmLambert-St Louis

21h 55m

2 stops

CLJ12:30 amCluj Napoca

Apr 22

CLJ1:50 pmCluj Napoca

15h 13m

2 stops

STL9:03 pmLambert-St Louis

$731

Find similar

British Airways flights from St. Louis to Romania

Our best British Airways deals on St. Louis to Romania flight tickets

British Airways

Jan 30

STL12:11 pmLambert-St Louis

27h 14m

2 stops

OTP11:25 pmBucharest Otopeni Intl

Feb 6

OTP4:45 pmBucharest Otopeni Intl

33h 28m

2 stops

STL6:13 pmLambert-St Louis

$537

Find similar

British Airways

May 6

STL9:15 amLambert-St Louis

31h 10m

2 stops

OTP12:25 amBucharest Otopeni Intl

May 27

OTP8:25 amBucharest Otopeni Intl

19h 05m

1 stop

STL7:30 pmLambert-St Louis

$753

Find similar

British Airways

May 6

STL10:00 pmLambert-St Louis

18h 25m

1 stop

OTP12:25 amBucharest Otopeni Intl

May 27

OTP8:25 amBucharest Otopeni Intl

19h 05m

1 stop

STL7:30 pmLambert-St Louis

$756

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 1/30

3:50 pm-2:10 pm

1 stop14h 20m

Bucharest Otopeni Intl

Fri 2/6

5:55 am-11:59 pm

2 stops26h 04m

$494

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 1/30

12:11 pm-11:25 pm

2 stops27h 14m

Bucharest Otopeni Intl

Fri 2/6

4:45 pm-6:13 pm

2 stops33h 28m

$537

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Thu 1/29

8:05 am-1:40 pm

2 stops21h 35m

Cluj Napoca

Mon 2/2

6:00 am-3:29 pm

2 stops41h 29m

$543

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 1/30

3:50 pm-2:10 pm

1 stop14h 20m

Bucharest Otopeni Intl

Tue 2/3

5:55 am-3:15 pm

2 stops41h 20m

$555

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 1/30

11:22 am-2:10 pm

2 stops18h 48m

Bucharest Otopeni Intl

Tue 2/3

5:55 am-3:15 pm

2 stops41h 20m

$559

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Thu 1/29

6:30 am-2:05 pm

2 stops23h 35m

Bucharest Otopeni Intl

Mon 2/2

5:55 am-10:00 pm

2 stops24h 05m

$563

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Sat 4/4

4:05 pm-5:25 pm

3 stops17h 20m

Cluj Napoca

Tue 4/21

6:00 am-3:24 pm

2 stops41h 24m

$811

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Fri 4/3

4:05 pm-12:30 am

2 stops24h 25m

Cluj Napoca

Wed 4/22

6:00 am-9:03 pm

3 stops23h 03m

$840

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Fri 4/3

8:26 am-1:10 pm

3 stops20h 44m

Cluj Napoca

Wed 4/22

6:00 am-9:03 pm

3 stops23h 03m

$874

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Sat 4/4

4:05 pm-5:25 pm

3 stops17h 20m

Cluj Napoca

Tue 4/21

6:00 am-9:03 pm

3 stops23h 03m

$906

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted 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

Prices

Airlines

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.

Can stopping save me money on St. Louis to Romania flights?

You could potentially save up to 8% on your flight if you consider stops on a St. Louis to Romania flight.

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

Fastest flight time	14h 20m
Direct flights	None

The fastest flight from St. Louis to Romania takes 14h 20m

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 December 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
United Airlines	PriceFrom $784	Free Cancellation	Rating 7.4 9,092 reviews		Search United Airlines flights
Lufthansa	PriceFrom $800	Free Cancellation	Rating 6.8 7,635 reviews		Search Lufthansa 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.