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AC
Air Canada
LH
Lufthansa
LX
Swiss International Air Lines
OS
Austrian Airlines
UA
United Airlines
One Way
•
Economy
EWR
Newark Liberty Airport
Newark, United States
LIS
Portela Airport
Lisbon, Portugal
$406 USD
-34%
$268
USD
Verified Nov 6, 2025 at 5:53 AM
December 2025
Today
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
$373
2
$373
3
$373
4
$349
5
$373
6
$373
7
$367
8
$373
9
$373
10
$354
11
$373
12
$373
13
$384
14
$453
15
$433
16
$513
17
$529
18
$747
19
$999
20
$1,110
21
$886
22
$713
23
$623
24
$525
25
$514
26
$514
27
$502
28
$373
29
$378
30
$373
31
$373
1
2
3
4
Limited Availability
14% of dates checked are available within 10% of the lowest price
Tuesday, December 9th, 2025
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