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Cheap flights from Bucharest to St. Louis from $768

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bucharest to St. Louis departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Bucharest to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:05 am - 5:38 pm
OTP
-
STL
18h 33m
2 stops
Delta Logo
10:33 am - 1:40 pm
STL
-
OTP
19h 07m
2 stops
$952Delta
Fri, Aug 14 - Tue, Aug 18
Delta Logo
7:05 am - 8:42 pm
OTP
-
STL
21h 37m
2 stops
Delta Logo
11:13 am - 1:40 pm
STL
-
OTP
18h 27m
2 stops
$952Delta
Wed, Aug 12 - Sun, Aug 16
British Airways Logo
8:00 am - 11:33 pm
OTP
-
STL
23h 33m
2 stops
British Airways Logo
1:58 pm - 3:30 pm
STL
-
OTP
17h 32m
2 stops
$1,068British Airways
Thu, Nov 5 - Mon, Nov 9
British Airways Logo
8:00 am - 11:33 pm
OTP
-
STL
23h 33m
2 stops
British Airways Logo
1:58 pm - 3:30 pm
STL
-
OTP
17h 32m
2 stops
$1,068British Airways
Thu, Nov 12 - Mon, Nov 16
British Airways Logo
8:00 am - 11:59 pm
OTP
-
STL
23h 59m
2 stops
British Airways Logo
6:00 am - 3:30 pm
STL
-
OTP
25h 30m
2 stops
$1,070British Airways
Thu, Nov 12 - Mon, Nov 16
British Airways Logo
8:00 am - 11:33 pm
OTP
-
STL
23h 33m
2 stops
British Airways Logo
1:58 pm - 3:30 pm
STL
-
OTP
17h 32m
2 stops
$1,070British Airways
Thu, Nov 12 - Mon, Nov 16
British Airways Logo
8:00 am - 11:33 pm
OTP
-
STL
23h 33m
2 stops
British Airways Logo
1:58 pm - 3:30 pm
STL
-
OTP
17h 32m
2 stops
$1,070British Airways
Thu, Nov 5 - Mon, Nov 9
British Airways Logo
8:15 am - 11:34 pm
OTP
-
STL
23h 19m
2 stops
British Airways Logo
9:35 pm - 1:20 am
STL
-
OTP
19h 45m
1 stop
$1,072British Airways
Fri, Aug 14 - Tue, Aug 18
British Airways Logo
8:15 am - 11:34 pm
OTP
-
STL
23h 19m
2 stops
British Airways Logo
9:44 am - 3:25 pm
STL
-
OTP
21h 41m
2 stops
$1,112British Airways
Fri, Aug 14 - Tue, Aug 18
Multiple Airlines Logo
6:35 am - 8:24 pm
OTP
-
STL
21h 49m
2 stops
Multiple Airlines Logo
3:30 pm - 1:05 pm
STL
-
OTP
13h 35m
1 stop
$1,150Multiple Airlines
Wed, Aug 12 - Sun, Aug 16

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British Airways flights from Bucharest to St. Louis

Our best British Airways deals on Bucharest to St. Louis flight tickets
British Airways
Nov 5
OTP8:00 amBucharest Otopeni Intl
23h 33m
2 stops
STL11:33 pmLambert-St Louis
Nov 9
STL1:58 pmLambert-St Louis
17h 32m
2 stops
OTP3:30 pmBucharest Otopeni Intl
$1,068
British Airways
Nov 12
OTP8:00 amBucharest Otopeni Intl
23h 33m
2 stops
STL11:33 pmLambert-St Louis
Nov 16
STL1:58 pmLambert-St Louis
17h 32m
2 stops
OTP3:30 pmBucharest Otopeni Intl
$1,070
British Airways
Aug 14
OTP8:15 amBucharest Otopeni Intl
23h 19m
2 stops
STL11:34 pmLambert-St Louis
Aug 18
STL9:35 pmLambert-St Louis
19h 45m
1 stop
OTP1:20 amBucharest Otopeni Intl
$1,072

momondo Fare Finder

 
Customize your flight search to find flights from Bucharest to St. Louis 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, momondo users made 832,500 searches. Data last updated July 31, 2026.
Use the filters below to find and compare flights from Bucharest to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Fri 8/14

7:05 am-5:38 pm

2 stops18h 33m

Lambert-St Louis

Tue 8/18

10:33 am-1:40 pm

2 stops19h 07m

$952

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 8/12

7:05 am-8:42 pm

2 stops21h 37m

Lambert-St Louis

Sun 8/16

11:13 am-1:40 pm

2 stops18h 27m

$952

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Thu 11/5

8:00 am-11:33 pm

2 stops23h 33m

Lambert-St Louis

Mon 11/9

1:58 pm-3:30 pm

2 stops17h 32m

$1,068

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Thu 11/12

8:00 am-11:33 pm

2 stops23h 33m

Lambert-St Louis

Mon 11/16

1:58 pm-3:30 pm

2 stops17h 32m

$1,068

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Thu 11/12

8:00 am-11:59 pm

2 stops23h 59m

Lambert-St Louis

Mon 11/16

6:00 am-3:30 pm

2 stops25h 30m

$1,070

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Thu 11/12

8:00 am-11:33 pm

2 stops23h 33m

Lambert-St Louis

Mon 11/16

1:58 pm-3:30 pm

2 stops17h 32m

$1,070

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Thu 11/5

8:00 am-11:33 pm

2 stops23h 33m

Lambert-St Louis

Mon 11/9

1:58 pm-3:30 pm

2 stops17h 32m

$1,070

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Fri 8/14

8:15 am-11:34 pm

2 stops23h 19m

Lambert-St Louis

Tue 8/18

9:35 pm-1:20 am

1 stop19h 45m

$1,072

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Fri 8/14

8:15 am-11:34 pm

2 stops23h 19m

Lambert-St Louis

Tue 8/18

9:44 am-3:25 pm

2 stops21h 41m

$1,112
Quickest round-trip

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 8/12

6:35 am-8:24 pm

2 stops21h 49m

Lambert-St Louis

Sun 8/16

3:30 pm-1:05 pm

1 stop13h 35m

$1,150

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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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

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

You could potentially save up to 28% on your flight if you consider stops on a Bucharest to St. Louis flight.

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

18h 33m

Direct flights

None
The fastest flight from Bucharest to St. Louis takes 18h 33m
There are no direct flights from Bucharest to St. Louis. There are no popular flight routes from Bucharest to St. Louis.
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Frequently asked questions about flying from Bucharest to St. Louis

  • How far is Bucharest to Lambert-St Louis by plane?

    Lambert-St Louis is 5458.3 mi away from Bucharest. Typically, this will take 18h 33m 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.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
O'Fallon
Alton
Fenton
Farmington
Clayton
Wentzville
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

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.

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