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Cheap flights from Great Falls (GTF) 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 Great Falls (GTF) to Lisbon (LIS)

How to find the cheapest flight from Great Falls (GTF) to Lisbon (LIS)
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How to find the cheapest flight from Great Falls (GTF) to Lisbon (LIS)
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How to find the cheapest flight from Great Falls (GTF) to Lisbon (LIS)
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Cheap flights from Great Falls to Lisbon in November , December 2026

16 Nov - 11 Dec $ 1,191.00
GTF
Great Falls
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
GTF
Great Falls
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16 Nov - 15 Dec $ 1,191.00
GTF
Great Falls
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
GTF
Great Falls
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13 Nov - 11 Dec $ 1,191.00
GTF
Great Falls
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
2 STOPS
GTF
Great Falls
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Last minute flights from Great Falls to Lisbon

16 Nov - 02 Dec $ 1,575.00
GTF
Great Falls
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
3 STOPS
GTF
Great Falls
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13 Nov - 02 Dec $ 1,575.00
GTF
Great Falls
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
3 STOPS
GTF
Great Falls
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15 Nov - 02 Dec $ 1,614.00
GTF
Great Falls
Alaska Airlines
2 STOPS
LIS
Lisbon
LIS
Lisbon
Alaska Airlines
3 STOPS
GTF
Great Falls
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One-way flights to Lisbon from Great Falls

5:10 PM - 5:25 PM
TAP Portugal
2 Stops
29h 25m
GTF - LIS
$ 614
Kiwi
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5:10 PM - 10:10 PM
TAP Portugal
2 Stops
33h 35m
GTF - LIS
$ 614
Kiwi
Pick dates
5:10 PM - 10:10 PM
TAP Portugal
2 Stops
33h 35m
GTF - LIS
$ 654
Kiwi
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How to find the cheapest flight from Great Falls (GTF) to Lisbon (LIS)

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