$353 Cheap Flights from St. Louis (STL) to Bucharest (OTP)
Popular airlines from St. Louis Lambert Intl. Airport (STL) to Henri Coanda Intl. Airport (OTP)
LufthansaLufthansa
British AirwaysBritish Airways
Air CanadaAir Canada
Austrian AirlinesAustrian Airlines
KLMKLM
UnitedUnited
Turkish AirlinesTurkish Airlines
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Cheap Flights from St. Louis to Bucharest (STL-OTP)
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St. Louis (STL) to Bucharest (OTP) at a glance
Travel across the globe with a selection of airlines that offer flights from St. Louis (STL) to Bucharest (OTP) on this long-haul international route. Evaluate choices from full-service carriers to discover the itinerary that best suits your budget, schedule, and travel ambitions while you immerse yourself in Bucharest's renowned attractions and neighborhoods. Gather essential information for flights departing from Lambert-St. Louis International Airport (STL) to Henri Coanda International Airport (OTP).
- Fastest flight duration: around 11h 15m in-flight, plus roughly 2h 30m layover with one stop
- Route distance: roughly 5,500 miles (8,850 km)
- Flights per week: around 7 departures on average
- Typical fares (one-way): economy tickets often range from $320–$1080, depending on seasonality and how far ahead you book
Flights from Lambert-St. Louis International Airport (STL) to Henri Coanda International Airport (OTP)
According to recent traveler bookings, here are the top airlines favored for flights from St. Louis to Bucharest, featuring both multi-stop and one-stop options. Popular layover spots include Frankfurt International Airport (FRA) with an approximately 2h 15m layover, Schiphol Airport (AMS) at around 2h 45m, and Hartsfield-Jackson Atlanta International Airport (ATL) with a roughly 1h 45m layover. This allows you the flexibility to choose the best itinerary by balancing price, total travel time, and cabin class.
- United: As a comprehensive carrier, United provides both one-stop and multi-stop options, with one-way ticket prices generally between $330 and $850. This airline represents about 42% of departures for this route, featuring an in-flight duration of approximately 12 hours and 15 minutes, leading to a total travel time of around 17 hours and 15 minutes.
- Lufthansa: A well-established full-service airline, Lufthansa offers one-stop flights with one-way fares typically ranging from $320 to $905. It comprises about 15% of departures on this route, with a flight time of around 11 hours and 15 minutes, resulting in a total journey time of approximately 13 hours and 45 minutes, including layovers.
- Air Canada: Known for its multi-stop services, Air Canada features one-way fares generally between $355 and $1,065. This airline accounts for roughly 15% of departures on this route, with an in-flight time of 12 hours and 15 minutes and an overall journey time of about 17 hours and 15 minutes, factoring in layovers.
- Delta: Delta Airlines offers multi-stop services, with one-way fares typically ranging from $440 to $1,060. This carrier makes up around 10% of departures on this route, with an in-flight duration of 12 hours and 15 minutes, leading to a total travel time of approximately 17 hours and 15 minutes, including layovers.
- Air France: Operating as a full-service carrier, Air France provides multi-stop options with one-way fares usually between $420 and $485. It accounts for about 5% of departures on this route, featuring an in-flight time of 12 hours and 15 minutes and a total journey time of roughly 17 hours and 15 minutes, inclusive of layovers.
Alternative route from St. Louis (STL) to Bucharest (OTP)
- St. Louis to Bucharest (STL-BBU): Aurel Vlaicu Airport (BBU) is located approximately 5 miles from Henri Coanda International Airport (OTP).
How to find the best prices for flights from St. Louis (STL) to Bucharest (OTP)
Getting some of the best deals on flights from St. Louis to Bucharest is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Departures in the afternoon, from 12 PM to 6 PM, are often less expensive and are the most popular times to fly. Additionally, flying on Tuesday generally results in lower prices, while Wednesday is the most favored travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Henri Coanda International Airport from Lambert-St. Louis International Airport
Bucharest welcomes travelers from St. Louis with a range of transport options based on price, convenience, and proximity. Bucharest city center is approximately a 20-minute drive (covering about 12 miles) from Henri Coanda International Airport, depending on traffic. Here's how to reach Bucharest efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Bucharest, with private rides that can be arranged in advance.
- Car rental: Renting a car from Henri Coanda International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Henri Coanda International Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Henri Coanda International Airport, Baneasa Seaport, located about 6.2 miles away by car, offers access to maritime travel, while Străulești Station, a metro station, is approximately 7.1 miles away by car, and Bucharest Baneasa Station, a train station, is about 7.3 miles from the airport, providing convenient options for public transport connections.
St. Louis to Bucharest Flights
The cheapest times to fly from St. Louis to Bucharest
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Bucharest are during the month of April. You can find some of the cheapest flights from St. Louis to Bucharest with Expedia's search tool and vast selection of airlines.
The best time to book a flight from St. Louis to Bucharest
Sunday is one of the best days to book for cheap flights from St. Louis to Bucharest: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from St. Louis to Bucharest
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Bucharest in 2026. You can also book with separate airlines for your outbound and return journeys, from $353 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Bucharest flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Bucharest airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
Frequently Asked Questions
How much does a flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) cost?
You can find cheap one-way flights from $353 and cheap return flights $777 St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) with Expedia. One-way flights generally range between $866 and $4622, and roundtrip flights usually range from $723 to $5500. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
The cheapest month to fly from STL to OTP is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
Enter STL to OTP and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
Virgin Atlantic is one of the cheapest airlines offering connecting flights from St. Louis, MO (STL) to Bucharest (OTP) with a layover in Atlanta (ATL), starting from around $1,080 for a round-trip ticket. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
To find a cheap flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
The earliest flight from St. Louis, MO (STL) to Bucharest (OTP) departs at 5:00 AM, operated by American Airlines and British Airways. This seasonal service is available in December, giving you an early start to explore Bucharest. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
The most popular departure times for flights from St. Louis (STL) to Bucharest (OTP) are in the late morning, from 9am to 12pm. About 31% of passengers prefer this time window. Many major carriers, including Delta Airlines and United Airlines, offer flights during this window. This timing works well because it allows you to start your day early and arrive in Bucharest with plenty of time to explore.
How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
Flights from STL to OTP with one stop typically take around 24 hours, covering approximately 5,455 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
Business class seats are offered on the STL to OTP route. Airlines that offer business class service on this route include:
- United Airlines
- Air Canada
- Lufthansa
- American Airlines
- Delta Air Lines
How do I earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) flight with Expedia?
It's easy to earn miles on a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Bucharest from Lambert-St. Louis Intl. (STL)?
From Lambert-St. Louis Intl. (STL), you can fly into Henri Coanda Intl. (OTP) to reach Bucharest. Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Washington Dulles Intl. (IAD) before reaching Bucharest. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) at the last minute?
Typically, booking a last minute flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) flight and hotel package?
Securing a St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) Bucharest Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.)?
If you booked your St. Louis, MO (STL-Lambert-St. Louis Intl.) to Bucharest (OTP-Henri Coanda Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
Origin airport | St. Louis Lambert Intl. Airport |
|---|---|
Destination airport | Henri Coanda Intl. Airport |
Distance | 5,454 miles away |
Airlines serving | Lufthansa, British Airways, Air Canada, Austrian Airlines, KLM, United, Turkish Airlines, American Airlines, Air France, Delta |
Popular airline | Lufthansa |
Roundtrip price | $777 |