Vienna to Riga flights, non-stop

The way back

1. M
2. T
3. W
4. T
5. F
6. S
7. S
8. Nov16€20517:45
9. 17€20507:25
10. 18€48217:45
11. 19€15117:45
12. 20€15117:45
13. 21€17507:25
14. 22€17417:45
15. 23€16207:10
16. 24–no fare seen
17. 25–no fare seen
18. 26€13417:45
19. 27–no fare seen
20. 28€13407:25
21. 29€15417:45
22. 30€11617:45
23. Dec1€13007:25
24. 2–no fare seen
25. 3–no fare seen
26. 4–no fare seen
27. 5–no fare seen
28. 6–no fare seen
29. 7–no fare seen
30. 8–no fare seen
31. 9–no fare seen
32. 10–no fare seen
33. 11–no fare seen
34. 12€15007:25
35. 13€23817:45
36. 14–no fare seen
37. 15–no fare seen
38. 16–no fare seen
39. 17€11617:45
40. 18€14307:25
41. 19€20107:25
42. 20–no fare seen
43. 21–no fare seen
44. 22–no fare seen
45. 23€17217:45
46. 24€11617:45
47. 25€9607:25
48. 26€17607:25
49. 27€20017:45
50. 28€12607:10
51. 29€15407:25
52. 30–no fare seen
53. 31–no fare seen
54. Jan1–no fare seen
55. 2–no fare seen
56. 3€27517:45
57. 4€17407:10
58. 5€19607:25
59. 6€19617:45
60. 7€10107:25
61. 8–no fare seen
62. 9€9207:25
63. 10€12017:45
64. 11€8507:10
65. 12–no fare seen
66. 13–no fare seen
67. 14–no fare seen
68. 15€7517:45
69. 16–no fare seen
70. 17€7717:45
71. 18–no fare seen
72. 19–no fare seen
73. 20–no fare seen
74. 21–no fare seen
75. 22–no fare seen
76. 23–no fare seen
77. 24–no fare seen
78. 25–no fare seen
79. 26–no fare seen
80. 27–no fare seen
81. 28–no fare seen
82. 29–no fare seen
83. 30€7907:25
84. 31–no fare seen
85. Feb1–no fare seen
86. 2–no fare seen
87. 3–no fare seen
88. 4–no fare seen
89. 5€7117:45
90. 6–no fare seen
91. 7–no fare seen
92. 8–no fare seen
93. 9–no fare seen
94. 10–no fare seen
95. 11€8207:25
96. 12–no fare seen
97. 13–no fare seen

Of the 38 days with a time, the day's cheapest flight leaves in the morning on 19, in the afternoon on 19 and in the evening on 0.

Riga to Vienna non-stop: from €71 on 5 Feb, with fares on 38 of the next 90 days.