https://booking.airserbia.com/dx/JUDX/#/flight-selection?journeyType=round-trip&direction=1&pointOfSale=BG&locale=en-US&class=Economy&ADT=1&C13=0&CHD=0&INF=0&origin=SOF&destination=SVO&date=05-05-2020&origin1=SVO&destination1=SOF&date1=05-14-2020&promoCode=MIDNIGHTPROMO&flight=-440853171&flight1=-1642641474&execution=e1s1

https://www.ryanair.com/gb/en/trip/flights/select?ADT=1&TEEN=0&CHD=0&INF=0&DateOut=2020-03-09&DateIn=2020-03-12&Origin=SOF&Destination=VIE&isConnectedFlight=false&RoundTrip=true&Discount=0&tpAdults=1&tpTeens=0&tpChildren=0&tpInfants=0&tpStartDate=2020-02-29&tpEndDate=2020-03-05&tpOriginIata=SOF&tpDestinationIata=VIE&tpIsConnectedFlight=false&tpIsReturn=true&tpDiscount=0&dateOut=2020-03-09&dateIn=2020-03-12

https://fly4.emirates.com/CAB/IBE/SelectPrice.aspx

https://www.ryanair.com/ba/en/trip/flights/select?RoundTrip=true&ADT=1&TEEN=0&CHD=0&INF=0&Origin=SOF&Destination=BHX&DateOut=2020-03-05&DateIn=2020-03-10&fbclid=IwAR2wIamUUz4dKD3_mJmUDwBem63itn6uAgmqdGmdJ4uOoapg4cesasN1KZE

https://www.klm.bg/search/summary?pax=1:0:0:0:0:0&activeConnection=1&connections=SOF:A:20200204@0700:KL3076:L:VLX8S2BG:ECONOMY%3EAMS:20200204@1040:KL6149:V:VLX8S2BG:ECONOMY%3EJFK:20200204@1459:KL5670:V:VLX8S2BG:ECONOMY%3EPIT:A-PIT:A:20200211@1549:KL8095:V:VLX8S2BG:ECONOMY%3EDTW:20200211@1824:KL6119:V:VLX8S2BG:ECONOMY%3EAMS:20200212@1000:KL3077:L:VLX8S2BG:ECONOMY%3ESOF:A&cabinClass=ECONOMY&bookingFlow=LEISURE

https://wizzair.com/#/booking/select-flight/SOF/MLA/2020-03-14/2020-03-21/1/0/0/0/null

https://www.ryanair.com/ba/en/trip/flights/select?RoundTrip=true&ADT=1&TEEN=0&CHD=0&INF=0&Origin=SOF&Destination=ATH&DateOut=2020-01-28&DateIn=2020-02-04&fbclid=IwAR1dpZOi-JBIKMlrxXcru_9gYGgp6KFEN0j_rlHPBvtkG8uZoRsb6qwbDi8