The Best Dates for Cheap Airfare are listed below : Select an option to start searching
- Cheap Airfare from Calgary to Lisbon
- $1157 Jun 12 to Jun 20
- $1157 Jun 7 to Jun 22
- $1157 Jun 5 to Jun 20
- $1157 Jun 5 to Jun 13
- $1157 May 31 to Jun 8
- $1157 May 29 to Jun 13
- $1157 May 29 to Jun 6
- $1157 May 24 to Jun 8
- $1157 May 17 to May 25
- $1157 May 17 to Jun 1
- $1157 May 24 to Jun 1
- $1187 Jun 12 to Jun 27
- Cheap Airfare from Calgary to Porto
- $1143 Sep 12 to Sep 17
- $1163 Jun 20 to Jun 25
- $1183 Sep 12 to Sep 24
- $1183 Sep 19 to Sep 24
- $1203 Aug 8 to Aug 13
- $1203 Jun 20 to Jul 2
- $1233 Sep 5 to Sep 17
- $1233 Aug 29 to Sep 10
- $1233 Sep 5 to Sep 10
- $1233 Jun 27 to Jul 2
- $1263 Jun 27 to Jul 9
- $1273 Jul 11 to Jul 16
- Cheap Airfare from Montreal to Lisbon
- $790 Apr 26 to May 6
- $794 May 24 to Jun 6
- $794 May 24 to Jun 1
- $794 May 24 to Jun 8
- $794 May 24 to Jun 3
- $794 May 29 to Jun 6
- $794 May 29 to Jun 13
- $794 May 29 to Jun 8
- $794 May 31 to Jun 13
- $794 May 31 to Jun 8
- $794 Jun 5 to Jun 13
- $794 Jun 7 to Jun 22
- Cheap Airfare from Montreal to Porto
- $840 Aug 8 to Aug 16
- $840 Sep 12 to Sep 20
- $841 May 5 to May 13
- $841 May 5 to May 20
- $841 May 12 to May 20
- $841 May 12 to May 27
- $841 May 12 to May 23
- $841 May 19 to May 27
- $855 Jun 17 to Jun 27
- $860 Jun 17 to Jun 28
- $860 Jun 17 to Jun 25
- $860 Jun 20 to Jun 28
- Cheap Airfare from Toronto to Lisbon
- $655 Apr 22 to May 4
- $685 Apr 22 to May 1
- $685 Apr 22 to May 7
- $715 Apr 21 to May 6
- $715 Apr 30 to May 11
- $745 Apr 21 to May 1
- $745 Apr 22 to Apr 30
- $745 Apr 26 to May 4
- $745 Apr 26 to May 11
- $745 Apr 26 to May 6
- $745 May 3 to May 11
- $745 May 3 to May 18
- Cheap Airfare from Toronto to Porto
- $720 Apr 22 to May 7
- $780 Apr 22 to Apr 30
- $800 Sep 12 to Sep 20
- $810 May 4 to May 13
- $810 May 6 to May 13
- $810 May 11 to May 20
- $810 May 13 to May 20
- $810 May 13 to May 23
- $810 May 18 to May 27
- $810 May 20 to May 27
- $810 Jun 15 to Jun 24
- $810 Jun 15 to Jun 23
- Cheap Airfare from Vancouver to Lisbon
- $1147 May 29 to Jun 6
- $1147 May 29 to Jun 13
- $1147 May 29 to Jun 8
- $1147 Jun 5 to Jun 13
- $1147 Jun 5 to Jun 20
- $1147 Jun 12 to Jun 20
- $1147 Jun 12 to Jun 27
- $1147 Jun 12 to Jun 22
- $1152 Jun 19 to Jun 27
- $1157 Jun 19 to Jun 27
- $1172 May 29 to Jun 6
- $1172 May 29 to Jun 13
- Cheap Airfare from Vancouver to Porto
- $1152 Jun 20 to Jun 28
- $1173 Jun 19 to Jun 27
- $1182 Sep 12 to Sep 20
- $1208 Sep 11 to Sep 17
- $1222 Jun 20 to Jul 5
- $1222 Aug 8 to Aug 16
- $1223 Jun 5 to Jun 20
- $1223 Jun 5 to Jun 13
- $1223 Jun 12 to Jun 27
- $1223 Jun 12 to Jun 20
- $1228 Jun 5 to Jun 11
- $1243 Sep 11 to Sep 19