Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)

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.
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.

Cheap flights from Knoxville to Lisbon in November , December 2025

28 Nov - 08 Dec $ 655.00
TYS
Knoxville
United Airlines
1 STOPS
LIS
Lisbon
LIS
Lisbon
United Airlines
1 STOPS
TYS
Knoxville
Pick dates
25 Nov - 06 Dec $ 1,566.00
TYS
Knoxville
Aer Lingus
2 STOPS
LIS
Lisbon
LIS
Lisbon
Aer Lingus
2 STOPS
TYS
Knoxville
Pick dates
28 Nov - 03 Dec $ 1,950.00
TYS
Knoxville
Aer Lingus
2 STOPS
LIS
Lisbon
LIS
Lisbon
Aer Lingus
2 STOPS
TYS
Knoxville
Pick dates

Last minute flights from Knoxville to Lisbon

28 Nov - 01 Dec $ 1,227.00
TYS
Knoxville
Allegiant Air
1 STOPS
LIS
Lisbon
LIS
Lisbon
Allegiant Air
3 STOPS
TYS
Knoxville
Pick dates
25 Nov - 01 Dec $ 2,359.00
TYS
Knoxville
Aer Lingus
2 STOPS
LIS
Lisbon
LIS
Lisbon
Aer Lingus
2 STOPS
TYS
Knoxville
Pick dates
28 Nov - 01 Dec $ 2,641.00
TYS
Knoxville
Aer Lingus
2 STOPS
LIS
Lisbon
LIS
Lisbon
Aer Lingus
2 STOPS
TYS
Knoxville
Pick dates

One-way flights to Lisbon from Knoxville

7:15 AM - 5:40 PM
TAP Portugal
1 Stops
17h 10m
TYS - LIS
$ 413
Kiwi
Pick dates
7:20 PM - 10:05 PM
United Airlines
1 Stops
9h 55m
TYS - LIS
$ 487
Kiwi
Pick dates
2:25 PM - 10:05 PM
United Airlines
1 Stops
14h 50m
TYS - LIS
$ 487
Kiwi
Pick dates

How to find the cheapest flight from Knoxville (TYS) to Lisbon (LIS)

Related info for your journey
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.
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.