AirHint found the following cheapest return flights from Southend (SEN) to Sofia (SOF) in March 2026 (see full year).

Return flights

20 Mar - 29 Mar	easyJet
19 Mar - 29 Mar	easyJet
06 Mar - 08 Mar	easyJet
05 Mar - 08 Mar	easyJet
08 Mar - 15 Mar	easyJet
13 Mar - 15 Mar	easyJet
20 Mar - 31 Mar	easyJet
12 Mar - 15 Mar	easyJet
12 Mar - 21 Mar	easyJet
27 Mar - 29 Mar	easyJet
30 Mar - 03 Apr	easyJet
26 Mar - 12 Apr	easyJet
26 Mar - 14 Apr	easyJet
26 Mar - 10 Apr	easyJet
27 Mar - 12 Apr	easyJet
27 Mar - 07 Apr	easyJet
31 Mar - 11 Apr	easyJet
26 Mar - 11 Apr	easyJet

Also check the deals for one-way flights from Southend to Sofia in March.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Southend to Sofia in March from 159€

Return flights