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Otopeni Intl

$697+ Cheap flights from St. Louis (STL) to Otopeni Intl (OTP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — OTP
Jul 23 — Jul 301
Wed 7/23
Wed 7/30
1 adult, Economy
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Cheap flight deals from St. Louis to Otopeni Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Otopeni Intl (OTP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 18, 2025.

Round-trip from

$697
(Mytrip)

Popular in

November

Cheapest in

January

Average price

$1,055
From Lambert-St Louis to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from St. Louis to Otopeni Intl

Cheapest flights from St. Louis to Otopeni Intl
Explore the most affordable flight options available from St. Louis to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.

This Mytrip deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:30 pmSTL - OTP
2 stops19h 20mMultiple Airlines
Sat 9/206:40 pmOTP - STL
1 stop26h 50mMultiple Airlines
Deal found 7/16$697
This Air Canada deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:30 pmSTL - OTP
2 stops19h 20mAir Canada
Sat 9/206:00 amOTP - STL
2 stops21h 57mAir Canada
Deal found 7/16$700
This Ovago deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/53:59 pmSTL - OTP
2 stops19h 06mBritish Airways
Sat 9/138:25 amOTP - STL
2 stops20h 07mBritish Airways
Deal found 7/16$752
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:11 pmSTL - OTP
2 stops16h 19mAmerican Airlines
Sun 9/148:20 amOTP - STL
2 stops20h 05mAmerican Airlines
Deal found 7/16$755
This Ovago deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/35:30 pmSTL - OTP
2 stops17h 05mLufthansa
Sat 9/136:00 amOTP - STL
2 stops17h 44mLufthansa
Deal found 7/16$765
This Emirates deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/53:20 pmSTL - OTP
2 stops39h 25mEmirates
Fri 9/122:20 amOTP - STL
2 stops27h 12mEmirates
Deal found 7/16$2,428

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Otopeni Intl 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, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2025.
Use the filters below to find and compare flights from St. Louis to Bucharest Otopeni Intl Airport that are best for you.

Fly from

St. Louis

Fly to

Otopeni Intl

Route

Depart

Return

Price

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 9/10

1:30 pm-4:50 pm

2 stops19h 20m

Bucharest Otopeni Intl

Sat 9/20

6:40 pm-1:30 pm

1 stop26h 50m

$697

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 9/10

1:30 pm-4:50 pm

2 stops19h 20m

Bucharest Otopeni Intl

Sat 9/20

6:00 am-7:57 pm

2 stops21h 57m

$700

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 9/5

3:59 pm-7:05 pm

2 stops19h 06m

Bucharest Otopeni Intl

Sat 9/13

8:25 am-8:32 pm

2 stops20h 07m

$752

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Thu 9/4

2:11 pm-2:30 pm

2 stops16h 19m

Bucharest Otopeni Intl

Sun 9/14

8:20 am-8:25 pm

2 stops20h 05m

$755

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 9/3

5:30 pm-6:35 pm

2 stops17h 05m

Bucharest Otopeni Intl

Sat 9/13

6:00 am-3:44 pm

2 stops17h 44m

$765

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 9/5

3:20 pm-2:45 pm

2 stops39h 25m

Bucharest Otopeni Intl

Fri 9/12

2:20 am-9:32 pm

2 stops27h 12m

$2,428

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Best time to book a flight from St. Louis to Otopeni Intl

Have a flexible travel schedule? Discover the best time to fly to Otopeni Intl from St. Louis 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 St. Louis to Bucharest Otopeni Intl Airport

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

Find hourly flight availability from St. Louis to Otopeni Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 18, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 16% on flights from St. Louis to Bucharest Otopeni Intl Airport by exploring options for tickets at noon.

Reviews of airlines servicing Otopeni Intl

Get insights into the airlines that provide service to Otopeni Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Otopeni Intl. Reviews last updated July 18, 2025.
Read reviews from past customers who have flown Emirates, American Airlines, and Air Canada from St. Louis to Bucharest Otopeni Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,288 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,288 reviews
Emirates
8.1
Very good
3,288 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
American Airlines
7.2
Good
10,000 reviews
Emirates
8.1
Very good
3,288 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air Canada
7.1
Good
9,743 reviews
Emirates
8.1
Very good
3,288 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Lufthansa
6.8
Okay
7,216 reviews
Emirates
8.1
Very good
3,288 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
British Airways
6.6
Okay
7,151 reviews
Emirates
8.1
Very good
3,288 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Crew

8.3

Entertainment

8.2

Comfort

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Otopeni Intl. 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 from for flights from St. Louis to Bucharest Otopeni Intl?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Bucharest Otopeni Intl from St. Louis. Booking flights from Lambert-St Louis (STL) to Bucharest Otopeni Intl should be relatively easy as there are 0 daily outbound flights to Bucharest Otopeni Intl from 2 different airlines.

  • What are the cheapest airlines flying from St. Louis to Bucharest Otopeni Intl Airport round-trip?

    According to our current data, Air Canada ($700), British Airways ($752), and American Airlines ($755) offers the cheapest pricing from St. Louis to Bucharest Otopeni Intl Airport. You may be able to fly from St. Louis to Bucharest Otopeni Intl Airport for 34% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from St. Louis to Otopeni Intl?

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

  • Can I find deals for business class flights from St. Louis to Otopeni Intl?

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

  • What is the cheapest month to book a flight from St. Louis to Bucharest Otopeni Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Bucharest Otopeni Intl Airport (average of $604). Flying from St. Louis to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,133). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Bucharest Otopeni Intl Airport?

Book flights to Bucharest Otopeni Intl Airport if you plan to visit one of these locations
Otopeni

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Alternative routes for St. Louis to Otopeni Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from St. Louis to Otopeni Intl

Discover the top 2 airlines that operate flights from St. Louis to Otopeni Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$759Average$960FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$817Average$1,068FlexibilityNo cancel feeOn-time76%

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