STL - OTP

$636 Find Cheap Flights from St. Louis to Bucharest - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$636
Typical prices: $876-$1,170
British Airways
Wed 3/7Sat 3/17
STL - OTP • 2 stops
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Bucharest Otopeni Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
November
Cheapest • 54% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
London Heathrow (LHR)
Cheapest • Avg $979 (round-trip)
Frankfurt am Main (FRA)
Shortest trip • 14h 39m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bucharest Otopeni Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Bucharest (STL-OTP)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Bucharest

Sun, Mar 7 - Wed, Mar 17
British Airways Logo
11:31 am - 3:05 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
19h 34m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
8:25 am - 9:19 amOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
31h 54m2 stops London Heathrow Dallas/Fort Worth
$636British Airways
Sun, Mar 7 - Wed, Mar 17
American Airlines Logo
11:31 am - 3:05 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
19h 34m2 stops Chicago O'Hare Intl London Heathrow
American Airlines Logo
8:25 am - 11:34 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
22h 09m2 stops London Heathrow Dallas/Fort Worth
$642American Airlines
Sun, Mar 7 - Wed, Mar 17
Multiple Airlines Logo
4:05 pm - 3:50 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
15h 45m2 stops Toronto Pearson Intl Zurich
Multiple Airlines Logo
6:00 am - 2:45 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
15h 45m1 stop Frankfurt am Main
$646Multiple Airlines
Mon, Oct 26 - Mon, Nov 2
United Airlines Logo
11:29 am - 12:30 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
18h 01m2 stops Newark Munich Franz Josef Strauss
United Airlines Logo
7:10 pm - 9:52 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
34h 42m2 stops Vienna Intl Newark
$665United Airlines
Sun, Mar 7 - Wed, Mar 17
Lufthansa Logo
3:40 pm - 1:55 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
14h 15m1 stop Frankfurt am Main
Lufthansa Logo
6:00 am - 2:45 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
15h 45m1 stop Frankfurt am Main
$677Lufthansa
Sun, Mar 7 - Wed, Mar 17
Multiple Airlines Logo
4:05 pm - 3:50 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
15h 45m2 stops Toronto Pearson Intl Zurich
Multiple Airlines Logo
6:00 am - 2:45 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
15h 45m1 stop Frankfurt am Main
$681Multiple Airlines
Sun, Mar 7 - Wed, Mar 17
Lufthansa Logo
3:40 pm - 1:55 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
14h 15m1 stop Frankfurt am Main
Lufthansa Logo
6:00 am - 2:45 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
15h 45m2 stops Munich Franz Josef Strauss Frankfurt am Main
$694Lufthansa
Sun, Mar 7 - Wed, Mar 17
Lufthansa Logo
3:40 pm - 1:55 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
14h 15m1 stop Frankfurt am Main
Lufthansa Logo
6:00 am - 2:45 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
15h 45m1 stop Frankfurt am Main
$783Lufthansa
Wed, Feb 3 - Fri, Feb 5
United Airlines Logo
11:45 am - 1:55 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
18h 10m2 stops Newark Frankfurt am Main
United Airlines Logo
6:00 am - 1:45 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
15h 45m1 stop Frankfurt am Main
$793United Airlines
Wed, Feb 3 - Fri, Feb 5
United Airlines Logo
3:40 pm - 1:55 pmSTL  Lambert-St Louis-OTP Bucharest Otopeni Intl
14h 15m1 stop Frankfurt am Main
United Airlines Logo
6:00 am - 1:45 pmOTP  Bucharest Otopeni Intl-STL Lambert-St Louis
15h 45m1 stop Frankfurt am Main
$857United Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Bucharest Otopeni Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from St. Louis to Bucharest Otopeni Intl Airport with more confidence.

How much is a round-trip flight from St. Louis to Bucharest Otopeni Intl Airport?

Round-trip flights from St. Louis to Bucharest Otopeni Intl Airport start at $636. Prices are below average for this route right now, with typical round-trip fares ranging from $876 to $1,170. The lowest price found in the past 5 days was $636 on British Airways.

What's the cheapest day of the week to fly from St. Louis to Bucharest Otopeni Intl Airport?

Tuesday is the cheapest day of the week to fly from St. Louis to Bucharest Otopeni Intl Airport, it is 4% cheaper than the average day. Saturday is the most expensive day with flight prices 27% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for St. Louis to Bucharest Otopeni Intl Airport flights

Low season

February
Most popular time to fly with an average 32% increase in price.

When to book flights from St. Louis to Bucharest

Are your dates flexible? Find out the best times to travel from St. Louis to Bucharest based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Bucharest Otopeni Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from St. Louis to Bucharest Otopeni Intl Airport?

    Flights from St. Louis to Bucharest Otopeni Intl Airport usually depart from Lambert-St Louis (STL) and arrive at Bucharest Otopeni Intl (OTP).

  • What cabin classes can I book on flights from St. Louis to Bucharest Otopeni Intl Airport?

    Two cabin classes are available on flights from St. Louis to Bucharest Otopeni Intl Airport:

    • Economy Class
    • Premium Economy Class

  • Which airports do connecting flights from St. Louis to Bucharest Otopeni Intl Airport pass through?

    Connecting flights from St. Louis to Bucharest Otopeni Intl Airport most commonly pass through:

    • Frankfurt am Main (FRA) - 89% of one-stop connections
    • London Heathrow (LHR) - 11% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

  • Can I save money by using flexible dates for flights from St. Louis to Bucharest Otopeni Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 25% on the St. Louis to Bucharest Otopeni Intl Airport route. Tuesday is the cheapest departure day at $1,006 round-trip on average, while Saturday is the most expensive at $1,331, a difference of $325. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Bucharest Otopeni Intl Airport?

    Some of the most popular sights in Bucharest Otopeni Intl Airport are Bucharest City Centre, Palace of the Parliament and Arena Națională. These are among the most viewed places in Bucharest Otopeni Intl Airport on KAYAK.

  • How long is a flight from St. Louis to Bucharest Otopeni Intl Airport?

    A nonstop flight from St. Louis to Bucharest Otopeni Intl Airport takes 0h 00m, covering 5,451 miles.

  • Do I need a passport to fly from St. Louis to Bucharest Otopeni Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from St. Louis to Bucharest Otopeni Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $636 to $2,073. That means the highest observed fare was about 3x higher than the lowest one.

  • How much time can I save by choosing a different layover airport from St. Louis to Bucharest Otopeni Intl Airport?

    Flying via Frankfurt am Main (FRA) gives the shortest average 1-stop total travel time at 14h 39m, compared with 19h 09m via London Heathrow (LHR).

  • What is the time difference between St. Louis and Bucharest Otopeni Intl Airport?

    Bucharest Otopeni Intl Airport is 8 hours ahead of St. Louis (Eastern European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Bucharest Otopeni Intl Airport (OTP)?

    Bucharest Otopeni Intl Airport (OTP) hosts 5 major car rental companies, with daily rates starting from around $1 for economy cars. Top options include:
    • Klass Wagen
    • Pricecarz
    • Payless
    • ADDCAR RENTAL
    • Sixt

  • How much should I expect to pay for a St. Louis to Bucharest Otopeni Intl Airport flight?

    Round-trip flights from St. Louis to Bucharest Otopeni Intl Airport range from $876 to $1,170, with an average of $1,044 over the past 12 months. Anything below $876 counts as a good deal.

Your guide to booking St. Louis to Bucharest Otopeni Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Tuesday departure instead of Saturday. On this route, Tuesday flights average $1,006 - about $325 less than Saturday (24% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Bucharest Otopeni Intl Airport trip for November. Fares historically average $475 round-trip in that month - typically $902 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Bucharest Otopeni Intl Airport.
    - Hilton Garden Inn Bucharest Airport

More options for your flight from St. Louis to Bucharest

Complete your trip to Bucharest with a hotel stay or car rental

Car rentals in Bucharest
Hotels in Bucharest
Vacations in Bucharest