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Otopeni Intl

$803+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — OTP
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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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 March 24, 2026.

This United Airlines deal was found by Cheapflights users on 3/22. 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 9/26:00 am
FSD
-
OTP
2 stops22h 00m
United Airlines
Wed 9/96:15 am
OTP
-
FSD
2 stops21h 49m
United Airlines
Deal found 3/22$803
This American Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 9/212:48 pm
FSD
-
OTP
3 stops17h 47m
American Airlines
Wed 9/98:15 am
OTP
-
FSD
2 stops23h 37m
American Airlines
Deal found 3/22$820
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Fri 11/69:14 am
FSD
-
OTP
2 stops25h 21m
United Airlines
Tue 11/106:05 am
OTP
-
FSD
2 stops23h 38m
United Airlines
Deal found 3/23$984
This United Airlines deal was found by Cheapflights users on 3/19. 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 12/23:16 pm
FSD
-
OTP
2 stops19h 24m
United Airlines
Sun 12/66:05 am
OTP
-
FSD
2 stops23h 38m
United Airlines
Deal found 3/19$996

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 March 24, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$803
(United Airlines)
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Bucharest Otopeni Intl flight deals.
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Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Bucharest Otopeni Intl flights.
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From Sioux Falls Joe Foss Field to Bucharest Otopeni Intl
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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 March 24, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsBucharest

FSD - OTP

FSDOTP

Sioux Falls Joe Foss Field

Wed 9/2

6:00 am-12:00 pm

2 stops22h 00m

Bucharest Otopeni Intl

Wed 9/9

6:15 am-8:04 pm

2 stops21h 49m

$803
Quickest round-trip

Sioux FallsBucharest

FSD - OTP

FSDOTP

Sioux Falls Joe Foss Field

Wed 9/2

12:48 pm-2:35 pm

3 stops17h 47m

Bucharest Otopeni Intl

Wed 9/9

8:15 am-11:52 pm

2 stops23h 37m

$820

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Sorted by cheapest first
  • 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 and American Airlines fly from Sioux Falls to Bucharest Otopeni Intl Airport in about 17h 47m. The time it takes to get you to your destination can typically vary by up to 4h 13m. Airlines will cover a distance of 5402 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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

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