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Cheap flights from Knoxville (TYS) to Lisbon (LIS)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)

How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)
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How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)
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How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)
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Cheap flights from Knoxville to Lisbon in May , June 2026

25 May - 01 Jun $ 1,306.00
TYS
Knoxville
United Airlines
1 STOPS
LIS
Lisbon
LIS
Lisbon
United Airlines
1 STOPS
TYS
Knoxville
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25 May - 11 Jun $ 2,372.00
TYS
Knoxville
Aer Lingus
2 STOPS
LIS
Lisbon
LIS
Lisbon
Aer Lingus
2 STOPS
TYS
Knoxville
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21 May - 04 Jun $ 3,024.00
TYS
Knoxville
Aer Lingus
2 STOPS
LIS
Lisbon
LIS
Lisbon
Aer Lingus
2 STOPS
TYS
Knoxville
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Last minute flights from Knoxville to Lisbon

27 May - 31 May $ 1,304.00
TYS
Knoxville
United Airlines
1 STOPS
LIS
Lisbon
LIS
Lisbon
United Airlines
2 STOPS
TYS
Knoxville
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27 May - 31 May $ 1,304.00
TYS
Knoxville
United Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
United Airlines
2 STOPS
TYS
Knoxville
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27 May - 31 May $ 1,576.00
TYS
Knoxville
United Airlines
1 STOPS
LIS
Lisbon
LIS
Lisbon
United Airlines
2 STOPS
TYS
Knoxville
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One-way flights to Lisbon from Knoxville

7:10 AM - 4:00 PM
Icelandair
2 Stops
33h 10m
TYS - LIS
$ 544
Kiwi
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1:54 PM - 10:55 PM
United Airlines
2 Stops
16h 11m
TYS - LIS
$ 746
Kiwi
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7:19 PM - 10:25 PM
United Airlines
1 Stops
10h 11m
TYS - LIS
$ 851
Kiwi
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How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)

Related info for your journey
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How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.