Title: Cheap flights from Sofia to Silistra (SOF to SLS) - Expedia.com ![Adobe](https://images.trvl-media.com/place/9892/7b5d3e49-2ac8-4f10-b71d-0772ff7ac2e9.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/9892/7b5d3e49-2ac8-4f10-b71d-0772ff7ac2e9.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Sofia (SOF) to Silistra (SLS) ## Popular airlines from Sofia Airport (SOF) to Silistra (SLS) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:SLS,departure:4/5/2026TANYT&leg2=from:SLS,to:SOF,departure:4/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:SLS,departure:4/5/2026TANYT&leg2=from:SLS,to:SOF,departure:4/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:SLS,departure:4/5/2026TANYT&leg2=from:SLS,to:SOF,departure:4/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:SLS,departure:4/5/2026TANYT&leg2=from:SLS,to:SOF,departure:4/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:SLS,departure:4/5/2026TANYT&leg2=from:SLS,to:SOF,departure:4/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:SLS,departure:4/5/2026TANYT&leg2=from:SLS,to:SOF,departure:4/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:SOF,to:SLS,departure:4/5/2026TANYT&leg2=from:SLS,to:SOF,departure:4/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Frequently asked questions ### How much does a flight from Sofia Airport (SOF) to Silistra (SLS) cost? ### What is the cheapest month to fly from Sofia Airport (SOF) to Silistra (SLS)? ### What is the cheapest airline that flies from Sofia Airport (SOF) to Silistra (SLS)? ### How many flights per day from Sofia Airport (SOF) to Silistra (SLS)? ### What day of the week has the most flights from SOF to SLS? ### What is the best time to fly from Sofia Airport (SOF) to Silistra (SLS)? ### Is it cheaper to buy a plane ticket from Sofia Airport (SOF) to Silistra (SLS) last-minute? ### Is it cheaper to book a SOF to SLS flight and hotel package? ### Can I cancel or change the date of my flight from Sofia Airport (SOF) to Silistra (SLS)? ## Travel information | Origin airport | Sofia | | ------------------- | -------- | | Destination airport | Silistra | | Distance | 211 mi | ## Book with confidence # Sofia to Silistra Flights The cheapest times to fly from Sofia to Silistra On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sofia to Silistra are during the month of . You can find some of the cheapest flights from Sofia to Silistra with Expedia's search tool and vast selection of airlines. The best time to book a flight from Sofia to Silistra Sunday is one of the best days to book for cheap flights from Sofia to Silistra: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. How to find cheap round-trip tickets from Sofia to Silistra Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sofia to Silistra in 2026\. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sofia to Silistra flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Sofia to Silistra airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. \*Terms apply. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. \*Flight schedules are subject to change. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Other - [Resorts & Hotels with Spas in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-Spa-Hotel.0-0-d553248635975176985-tSpaHotel.Hotel-Filter-Destinations) - [Hotels with an Outdoor Pool in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-Hotels-With-Outdoor-Pool.0-0-d553248635975176985-tHotelswithOutdoorPool.Hotel-Filter-Destinations) - [Silistra Hotels ](https://www.expedia.com/Silistra-Hotels.d9892.Travel-Guide-Hotels) - [Hotels near Srebarna Nature Reserve ](https://www.expedia.com/Srebarna-Nature-Reserve-Hotels.0-l6097938-0.Travel-Guide-Filter-Hotels) - [Historic Hotels in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-Historic-Hotel.0-0-d553248635975176985-tHistoricHotel.Hotel-Filter-Destinations) - [Sitovo Hotels ](https://www.expedia.com/Sitovo-Hotels.d553248635967617137.Travel-Guide-Hotels) - 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[Hotels with Balconies in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-Hotels-With-Balconies.0-0-d553248635975176985-tHotelswithBalconies.Hotel-Filter-Destinations) - [Aydemir Hotels ](https://www.expedia.com/Aydemir-Hotels.d3000043818.Travel-Guide-Hotels) - [Romantic Hotels in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-Romantic-Hotel.0-0-d553248635975176985-tRomanticHotel.Hotel-Filter-Destinations) - [5 Star Hotels in Silistra ](https://www.expedia.com/5Star-Silistra-Hotels.s50-0-d9892.Travel-Guide-Filter-Hotels) - [Fishing Resorts & in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-Fishing-Hotels.0-0-d553248635975176985-tFishingHotels.Hotel-Filter-Destinations) - [Gay friendly Hotels in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-LGBT-Welcoming-Hotel.0-0-d553248635975176985-tLGBTWelcomingHotel.Hotel-Filter-Destinations) - [Hotels with a Pool in Silistra Province ](https://www.expedia.com/Destinations-In-Silistra-Province-Hotel-With-Pool.0-0-d553248635975176985-tHotelwithPool.Hotel-Filter-Destinations) - 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[Car rentals near Sitovo ](https://www.expedia.com/Car-Rentals-In-Sitovo.d553248635967617137.Car-Rental-Guide) - [Offer Car Hire Rental Cars in Silistra ](https://www.expedia.com/Offer-Car-Hire-Car-Rentals-In-Silistra.d9892-c1141.Car-Rental-Guide-Suppliers) - [Things to do in Silistra ](https://www.expedia.com/Things-To-Do-In-Silistra.d9892.Travel-Guide-Activities) \*Available to One Key members.