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Cheap flights from Buffalo (BUF) to Porto (OPO)

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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 Buffalo (BUF) to Porto (OPO)

How to find the cheapest flight from Buffalo (BUF) to Porto (OPO)
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How to find the cheapest flight from Buffalo (BUF) to Porto (OPO)
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How to find the cheapest flight from Buffalo (BUF) to Porto (OPO)
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Cheap flights from Buffalo to Porto in April , May 2026

21 Apr - 02 May $ 1,059.00
BUF
Buffalo
Frontier Airlines
3 STOPS
OPO
Porto
OPO
Porto
Frontier Airlines
3 STOPS
BUF
Buffalo
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13 Apr - 11 May $ 1,525.00
BUF
Buffalo
TAP Portugal
1 STOPS
OPO
Porto
OPO
Porto
TAP Portugal
1 STOPS
BUF
Buffalo
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15 Apr - 10 May $ 3,793.00
BUF
Buffalo
TAP Portugal
2 STOPS
OPO
Porto
OPO
Porto
TAP Portugal
2 STOPS
BUF
Buffalo
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Last minute flights from Buffalo to Porto

22 Apr - 01 May $ 1,008.00
BUF
Buffalo
Frontier Airlines
3 STOPS
OPO
Porto
OPO
Porto
Frontier Airlines
3 STOPS
BUF
Buffalo
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22 Apr - 01 May $ 1,053.00
BUF
Buffalo
Frontier Airlines
3 STOPS
OPO
Porto
OPO
Porto
Frontier Airlines
3 STOPS
BUF
Buffalo
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21 Apr - 01 May $ 1,072.00
BUF
Buffalo
Frontier Airlines
3 STOPS
OPO
Porto
OPO
Porto
Frontier Airlines
3 STOPS
BUF
Buffalo
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One-way flights to Porto from Buffalo

2:54 PM - 9:30 AM
United Airlines
2 Stops
15h 26m
BUF - OPO
$ 642
Kiwi
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6:55 PM - 9:45 PM
United Airlines
1 Stops
9h 50m
BUF - OPO
$ 659
Kiwi
Pick dates
6:55 PM - 9:45 PM
United Airlines
1 Stops
9h 50m
BUF - OPO
$ 669
Kiwi
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How to find the cheapest flight from Buffalo (BUF) to Porto (OPO)

Related info for your journey
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How to find the cheapest flight from Buffalo (BUF) to Porto (OPO)
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 Buffalo (BUF) to Porto (OPO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.