Sydney Kingsford Smith
Lisbon Humberto Delgado
1 stop
45h 35mKorean Air
Perth
Lisbon Humberto Delgado
1 stop
28h 20mEmirates
Melbourne
Lisbon Humberto Delgado
2 stops
36h 35mLisbon Humberto Delgado
Melbourne
2 stops
28h 20mFinnair
Sydney Kingsford Smith
Lisbon Humberto Delgado
2 stops
55h 20mLisbon Humberto Delgado
Sydney Kingsford Smith
2 stops
49h 40mSWISS
Melbourne
Lisbon Humberto Delgado
2 stops
36h 35mLisbon Humberto Delgado
Melbourne
2 stops
28h 20mMultiple Airlines
Sydney Kingsford Smith
Lisbon Humberto Delgado
2 stops
32h 55mLisbon Humberto Delgado
Sydney Kingsford Smith
2 stops
35h 45mTurkish Airlines
Sydney Kingsford Smith
Lisbon Humberto Delgado
2 stops
34h 40mLisbon Humberto Delgado
Sydney Kingsford Smith
2 stops
37h 00mBritish Airways
Melbourne
Lisbon Humberto Delgado
1 stop
25h 25mLisbon Humberto Delgado
Melbourne
2 stops
36h 45mEtihad Airways
January
$7,047
February
$3,924
March
$3,701
April
$3,855
May
$3,750
June
$3,888
July
$3,061
August
$4,035
September
$3,986
October
$3,854
November
$3,708
December
$3,834
At the present moment the cheapest month to fly business class to Portugal is currently July; with January being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.