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A3
Aegean Airlines
OA
Olympic Air
One Way
•
Business Class
OPO
Francisco Sá Carneiro Airport
Porto, Portugal
ATH
Athens International Airport
Athens, Greece
$435 USD
-34%
$287
USD
Verified Mar 21, 2026 at 5:15 AM
April 2026
Today
Mon
Tue
Wed
Thu
Fri
Sat
Sun
30
31
$416
1
2
$627
3
4
$416
5
6
7
$416
8
9
$324
10
11
$416
12
13
14
$627
15
16
17
18
$627
19
20
21
22
23
$324
24
25
26
$416
27
28
29
$324
30
$627
1
2
3
Rare Availability
6% of dates checked are available within 10% of the lowest price
Monday, April 13th, 2026
No flight details available for this date.