The cheapest times to fly from DAY to SOF are

  • January 8th to March 25th
  • May 21st to July 22nd
  • October 29th to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DAY to SOF is late January and early February. Prices can be as high as $1740 for Saturday flights during mid to late September, or as low as $790 for Tuesday flights around late January and early February.


When to Fly to Sofia

Flying from Dayton, OH (DAY) to Sofia (SOF) will usually cost between $1169 to $1680 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $1180. Due to high demand the most expensive time to fly is mid to late September, with an average price of $1662. Planning your trip to low-cost times can easily save you $483 on economy flights and even more on first-class flights. Generally, any price below $1341 can be considered a good price for a round-trip DAY to SOF flight.

See below for a graph of average weekly prices for the DAY to SOF route. All prices are for round-trip tickets in USD.

DAY to SOF Flight Prices

Compared to other flights, the DAY to SOF flight is slightly more expensive than the average and costs more than the average flight leaving from Dayton. The average price per mile (for a direct flight) is $0.16, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to Sofia, and Fridays are the most expensive days to return to Dayton. Selecting flights on the least expensive days could save you up to $98 (7%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1326. Return trip prices are from the SOF to DAY flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from DAY to SOF can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 16 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from DAY to SOF while comparing.

Destination alternative #1: Pristina Airport (PRN) in Pristina

  • 121 miles (195 km) away from SOF
  • Usually 23.12% less expensive than SOF
  • 2-layover flights available

See DAY to PRN flights


Flight Hacking DAY to SOF

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from DAY to SOF — but Champion Traveler does!

Hack #1: Washington, DC (DAY > DCA > SOF)

  • Price for both tickets: $866
  • Average savings: $475 (35.42%)

See DAY to DCA flights

Hack #2: Washington, DC (DAY > IAD > SOF)

  • Price for both tickets: $892
  • Average savings: $449 (33.48%)

See DAY to IAD flights

Hack #3: Chicago, IL (DAY > ORD > SOF)

  • Price for both tickets: $897
  • Average savings: $444 (33.11%)

See DAY to ORD flights


Flight Questions Answered

Still have questions about flying from DAY to SOF? We’ve got answers.

Which airlines fly this route?

You can find 10 major airlines flying this route most often: Air France, American, Austrian, British Airways, Delta, Iberia, KLM, LOT, Lufthansa, United, and potentially more during busy seasons.

How far away is it from Sofia Airport to James M Cox/Dayton International Airport?

The distance between the two airports is roughly 5159 miles or 8303 kilometers.

How long does it take to fly from DAY to SOF?

The real-world flight time for a nonstop DAY to SOF flight is about 10 hour 16 minutes.

How many flights go between Dayton, OH and Sofia?

It depends on the day of the week and the date, but a typical day might have around 15 available flights from DAY to SOF.


Airport Location Info


Departing Airport

Origination code DAY
Origination airport name James M Cox/Dayton International Airport
City Dayton, OH
Country the United States
Latitude 39.9
Longitude -84.2

Return Airport

Destination code SOF
Destination airport name Sofia Airport
City Sofia
Country Bulgaria
Latitude 42.7
Longitude 23.4


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.