Athens to Sofia flights, non-stop

The way back

1. M
2. T
3. W
4. T
5. F
6. S
7. S
14. Nov15–no fare seen
15. 16–no fare seen
16. 17€9521:00
17. 18–no fare seen
18. 19€9115:50
19. 20€4921:00
20. 21€9311:15
21. 22€5821:10
22. 23–no fare seen
23. 24€5621:00
24. 25–no fare seen
25. 26€7721:00
26. 27€7221:00
27. 28€9811:15
28. 29€8118:50
29. 30€6310:05
30. Dec1€6021:00
31. 2–no fare seen
32. 3–no fare seen
33. 4–no fare seen
34. 5€7511:15
35. 6–no fare seen
36. 7–no fare seen
37. 8–no fare seen
38. 9–no fare seen
39. 10–no fare seen
40. 11€8820:20
41. 12€9711:15
42. 13€7621:00
43. 14–no fare seen
44. 15–no fare seen
45. 16–no fare seen
46. 17€6721:00
47. 18–no fare seen
48. 19–no fare seen
49. 20–no fare seen
50. 21–no fare seen
51. 22–no fare seen
52. 23€6910:05
53. 24€7021:00
54. 25€8420:20
55. 26–no fare seen
56. 27€11721:00
57. 28–no fare seen
58. 29–no fare seen
59. 30–no fare seen
60. 31–no fare seen
61. Jan1–no fare seen
62. 2€9811:15
63. 3–no fare seen
64. 4€8510:05
65. 5€8321:00
66. 6€9811:15
67. 7–no fare seen
68. 8–no fare seen
69. 9–no fare seen
70. 10–no fare seen
71. 11–no fare seen
72. 12–no fare seen
73. 13–no fare seen
74. 14€9210:05
75. 15–no fare seen
76. 16–no fare seen
77. 17–no fare seen
78. 18–no fare seen
79. 19–no fare seen
80. 20–no fare seen
81. 21–no fare seen
82. 22€6221:00
83. 23€5211:15
84. 24–no fare seen
85. 25–no fare seen
86. 26–no fare seen
87. 27–no fare seen
88. 28–no fare seen
89. 29–no fare seen
90. 30–no fare seen
91. 31–no fare seen
92. Feb1–no fare seen
93. 2–no fare seen
94. 3–no fare seen
95. 4€8921:00
96. 5–no fare seen
97. 6–no fare seen
98. 7–no fare seen
99. 8–no fare seen
100. 9–no fare seen
101. 10–no fare seen
102. 11–no fare seen
103. 12–no fare seen

Of the 29 days with a time, the day's cheapest flight leaves in the morning on 11, in the afternoon on 1 and in the evening on 17.

Sofia to Athens non-stop: from €49 on 20 Nov, with fares on 29 of the next 90 days.