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

Prices for flights from Bucharest to Lambert-St Louis Airport refresh daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bucharest to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$616 Cheap Flights from Bucharest to St. Louis in 2025/26

1 adult

0 bags

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Find the cheapest flights from Bucharest to St. Louis

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Cheap round-trip flights

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6:05 am - 1:30 pm

OTP

STL

15h 25m1 stop

1:30 pm - 1:05 pm

STL

OTP

39h 35m2 stops

$701United Airlines

Wed, Apr 22 - Sun, May 17

6:05 am - 7:48 pm

OTP

STL

21h 43m2 stops

1:30 pm - 1:05 pm

STL

OTP

39h 35m2 stops

$706United Airlines

Wed, Apr 22 - Sun, May 17

8:25 am - 7:30 pm

OTP

STL

19h 05m1 stop

10:00 pm - 12:45 am

STL

OTP

18h 45m1 stop

$785American Airlines

Wed, Apr 22 - Sun, May 17

6:55 pm - 3:24 pm

OTP

STL

28h 29m3 stops

1:30 pm - 11:45 pm

STL

OTP

26h 15m3 stops

$1,177Multiple Airlines

Wed, Apr 22 - Sun, May 17

6:05 am - 7:26 pm

OTP

STL

21h 21m3 stops

1:30 pm - 6:35 pm

STL

OTP

21h 05m2 stops

$1,185Air Canada

Wed, Apr 22 - Sun, May 17

United Airlines flights from Bucharest to St. Louis

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

United Airlines

Apr 22

OTP6:05 amBucharest Otopeni Intl

15h 25m

1 stop

STL1:30 pmLambert-St Louis

May 17

STL1:30 pmLambert-St Louis

39h 35m

2 stops

OTP1:05 pmBucharest Otopeni Intl

$701

Find similar

United Airlines

Apr 22

OTP6:05 amBucharest Otopeni Intl

21h 43m

2 stops

STL7:48 pmLambert-St Louis

May 17

STL1:30 pmLambert-St Louis

39h 35m

2 stops

OTP1:05 pmBucharest Otopeni Intl

$706

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 4/22

6:05 am-1:30 pm

1 stop15h 25m

Lambert-St Louis

Sun 5/17

1:30 pm-1:05 pm

2 stops39h 35m

$701

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 4/22

6:05 am-7:48 pm

2 stops21h 43m

Lambert-St Louis

Sun 5/17

1:30 pm-1:05 pm

2 stops39h 35m

$706

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 4/22

8:25 am-7:30 pm

1 stop19h 05m

Lambert-St Louis

Sun 5/17

10:00 pm-12:45 am

1 stop18h 45m

$785

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 4/22

6:55 pm-3:24 pm

3 stops28h 29m

Lambert-St Louis

Sun 5/17

1:30 pm-11:45 pm

3 stops26h 15m

$1,177

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 4/22

6:05 am-7:26 pm

3 stops21h 21m

Lambert-St Louis

Sun 5/17

1:30 pm-6:35 pm

2 stops21h 05m

$1,185

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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 St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $732. 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 Tuesday because tickets tend to average around $912. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Bucharest at noon is the least expensive time of day to depart. momondo users have found prices as low as $687 when looking at flights departing at noon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $735 per ticket.

When to book flights from Bucharest to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Bucharest to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Bucharest to St. Louis (BUH to STL) flight deals and tips

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

Fastest flight time	15h 25m
Direct flights	None

The fastest flight from Bucharest to St. Louis takes 15h 25m

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

Search flight deals

How far is Bucharest to Lambert-St Louis by plane?
Lambert-St Louis is 5458.3 mi away from Bucharest. Typically, this will take 15h 25m by plane in normal conditions.
When did momondo last update prices for flights from Bucharest to Lambert-St Louis Airport?
Prices for flights from Bucharest to Lambert-St Louis Airport refresh daily.
How old do you have to be to fly from Bucharest to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bucharest to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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Alton

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Eureka

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Shrewsbury

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Bucharest to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Bucharest to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Bucharest to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Bucharest and alert you when they change.