HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Otopeni Intl

$764+ Cheap flights from Sioux Falls (FSD) 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — OTP
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sioux Falls to Otopeni Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Sioux Falls to Otopeni Intl

Cheapest flights from Sioux Falls to Otopeni Intl
Explore the most affordable flight options available from Sioux Falls to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 6, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/257:40 am
FSD
-
OTP
2 stops22h 20m
United Airlines
Sun 3/15:55 am
OTP
-
FSD
2 stops24h 02m
United Airlines
Deal found 2/3$764

Find flight deals from Sioux Falls to Otopeni Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) 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 February 6, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$764
(United Airlines)
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Bucharest Otopeni Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Bucharest Otopeni Intl flights.
Search Deals
From Sioux Falls Joe Foss Field to Bucharest Otopeni Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux Falls 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 February 6, 2026.
Use the filters below to find and compare flights from Sioux Falls to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Sioux Falls

Fly to

Otopeni Intl

Route

Depart

Return

Price

Sioux FallsBucharest

FSD - OTP

FSDOTP

Sioux Falls Joe Foss Field

Wed 2/25

7:40 am-2:00 pm

2 stops22h 20m

Bucharest Otopeni Intl

Sun 3/1

5:55 am-9:57 pm

2 stops24h 02m

$764

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

  • Most accurate provider: When it comes to deals on Sioux Falls-Bucharest Otopeni Intl Airport flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Sioux Falls-Bucharest Otopeni Intl Airport flight deals on Cheapflights vs. Ovago 90-95% of the time. Price accuracy is based on data collected from Sioux Falls-Bucharest Otopeni Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux Falls-Bucharest Otopeni Intl Airport flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-Bucharest Otopeni Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sioux Falls to Otopeni Intl

Have a flexible travel schedule? Discover the best time to fly to Otopeni Intl from Sioux Falls 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.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls 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 Sioux Falls to Bucharest Otopeni Intl?

    Sioux Falls Joe Foss Field (FSD) is the airport you will fly out of if you book a flight from Sioux Falls to Bucharest Otopeni Intl. You should not have trouble finding flights to Bucharest Otopeni Intl from Joe Foss Field; the airport handles an average of 0 outbound flights to Bucharest Otopeni Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Sioux Falls airport to Bucharest Otopeni Intl. It is only a 2.6 mi journey to Joe Foss Field (FSD) from Sioux Falls’s city center.

  • How long is the flight from Sioux Falls to Bucharest Otopeni Intl Airport?

    Airlines like United Airlines fly from Sioux Falls to Bucharest Otopeni Intl Airport in about 22h 20m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5402 mi.

  • Can I find deals for flights from Sioux Falls to Otopeni Intl that include hotel bookings?

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

  • How can I find direct flights from Sioux Falls to Otopeni Intl?

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

  • Can I find deals for business class flights from Sioux Falls to Otopeni Intl?

    Yes. Cheapflights offers flight deals from Sioux Falls 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.

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights