Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Sioux Falls to Sofia from $545

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux Falls to Sofia departing on 1/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Sioux Falls to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:11 pm - 10:45 pm
FSD
-
SOF
23h 34m2 stops
United Airlines Logo
6:10 am - 11:44 pm
SOF
-
FSD
25h 34m2 stops
$545United Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
7:30 am - 1:50 pm
FSD
-
SOF
22h 20m3 stops
United Airlines Logo
6:10 am - 8:24 pm
SOF
-
FSD
22h 14m2 stops
$990United Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
7:30 am - 1:50 pm
FSD
-
SOF
22h 20m3 stops
United Airlines Logo
6:10 am - 8:24 pm
SOF
-
FSD
22h 14m2 stops
$1,127United Airlines
Thu, Jan 29 - Mon, Feb 2

United Airlines flights from Sioux Falls to Sofia

Our best United Airlines deals on Sioux Falls to Sofia flight tickets
United Airlines
Jan 29
FSD3:11 pmSioux Falls Joe Foss Field
23h 34m
2 stops
SOF10:45 pmSofia
Feb 2
SOF6:10 amSofia
25h 34m
2 stops
FSD11:44 pmSioux Falls Joe Foss Field
$545
Find similar
United Airlines
Jan 29
FSD7:30 amSioux Falls Joe Foss Field
22h 20m
3 stops
SOF1:50 pmSofia
Feb 2
SOF6:10 amSofia
22h 14m
2 stops
FSD8:24 pmSioux Falls Joe Foss Field
$990
Find similar
United Airlines
Jan 29
FSD7:30 amSioux Falls Joe Foss Field
22h 20m
3 stops
SOF1:50 pmSofia
Feb 2
SOF6:10 amSofia
22h 14m
2 stops
FSD8:24 pmSioux Falls Joe Foss Field
$1,127
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sioux Falls to Sofia 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, momondo users made 832,500 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Sioux Falls to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsSofia

FSD - SOF

FSDSOF

Sioux Falls Joe Foss Field

Thu 1/29

3:11 pm-10:45 pm

2 stops23h 34m

Sofia

Mon 2/2

6:10 am-11:44 pm

2 stops25h 34m

$545

Sioux FallsSofia

FSD - SOF

FSDSOF

Sioux Falls Joe Foss Field

Thu 1/29

7:30 am-1:50 pm

3 stops22h 20m

Sofia

Mon 2/2

6:10 am-8:24 pm

2 stops22h 14m

$990

Sioux FallsSofia

FSD - SOF

FSDSOF

Sioux Falls Joe Foss Field

Thu 1/29

7:30 am-1:50 pm

3 stops22h 20m

Sofia

Mon 2/2

6:10 am-8:24 pm

2 stops22h 14m

$1,127

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Sofia from

How to get the cheapest flight ticket from Sioux Falls to Sofia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Sofia?

According to our data, Saturday is the cheapest day to fly to Sofia from Sioux Falls. The lowest ticket price found for a Saturday departure recently was $912. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Sioux Falls to Sofia on a Tuesday will generally be more expensive and average around $987. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Sofia?

In the morning is the cheapest time of day to fly from Sioux Falls to Sofia when you can find flight prices for as low as $923. Flying to Sofia in the morning is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Sofia, so prices are often more expensive at around $926 per ticket.

When to book flights from Sioux Falls to Sofia

Are you open to changing your travel dates? Check out the ideal times to fly from Sioux Falls to Sofia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sioux Falls to Sofia (FSD to SOF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux Falls to Sofia

Fastest flight time

20h 37m

Direct flights

None
The fastest flight from Sioux Falls to Sofia takes 20h 37m
There are no direct flights from Sioux Falls to Sofia. There are no popular flight routes from Sioux Falls to Sofia.
Search flight deals

  • How far is Sioux Falls Joe Foss Field to Sofia by plane?

    The straight-line distance from Sioux Falls Joe Foss Field to Sofia is 5416.0 mi. By plane, this route typically takes 20h 37m.

  • When did momondo last update prices for flights from Sioux Falls Joe Foss Field Airport to Sofia Airport?

    Prices for flights from Sioux Falls Joe Foss Field Airport to Sofia Airport were last updated today.

  • How old do you have to be to fly from Sioux Falls Joe Foss Field Airport to Sofia Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sioux Falls Joe Foss Field Airport to Sofia Airport.

  • What documentation or ID do you need to fly to Sofia Airport?

    The necessary travel and health documents for your Sofia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Bansko
Borovets
Velingrad
Sandanski

Why use momondo?

Why should I use momondo to find a flight deal from Sioux Falls to Sofia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sioux Falls to Sofia for you.

Can I find flights from Sioux Falls to Sofia with flexible booking policies on momondo?

Yes. All flights to Sofia from Sioux Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Sioux Falls to Sofia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sofia from Sioux Falls.

I’m not ready to book a flight from Sioux Falls to Sofia right now. Can momondo alert me if prices change?

Price alerts on flights to Sofia from Sioux Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 1/15
Thu 1/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bulgaria

Cabin classes currently available on flights to Sofia

List of cabin classes available on flights landing in Sofia. Availability may vary depending on flight origin and airline.
First Class to Sofia
Business Class to Sofia