Flights to Porto from $ 758*
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1 Passenger, Economy
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today
today
United's most popular flights to Porto (OPO)
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flight_land
$
Newark/New York (EWR)to
Porto (OPO)08/07/26 - 08/18/26
from
$ 992
Viewed: 2 hours ago
Roundtrip
Economy
Chicago (ORD)to
Porto (OPO)04/21/26 - 04/28/26
from
$ 910
Viewed: 1 hour ago
Roundtrip
Economy
Los Angeles (LAX)to
Porto (OPO)07/19/26 - 07/23/26
from
$ 894
Viewed: 1 hour ago
Roundtrip
Economy
San Francisco (SFO)to
Porto (OPO)09/16/26 - 09/30/26
from
$ 940
Viewed: 4 hours ago
Roundtrip
Economy
Denver (DEN)to
Porto (OPO)04/21/26 - 04/28/26
from
$ 874
Viewed: 5 hours ago
Roundtrip
Economy
Washington, D.C. (IAD)to
Porto (OPO)07/19/26 - 07/23/26
from
$ 895
Viewed: 2 hours ago
Roundtrip
Economy
Houston (IAH)to
Porto (OPO)05/05/26 - 05/12/26
from
$ 929
Viewed: 1 hour ago
Roundtrip
Economy
Boston (BOS)to
Porto (OPO)05/05/26 - 05/12/26
from
$ 758
Viewed: 1 hour ago
Roundtrip
Economy
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
Business class deals on flights to Porto (OPO)
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flight_land
$
Newark/New York (EWR)to
Porto (OPO)
08/07/26 - 08/18/26
Roundtrip
Business
from
$ 4,759
Viewed: 2 hours ago
Chicago (ORD)to
Porto (OPO)
10/07/26 - 10/14/26
Roundtrip
Business
from
$ 5,945
Viewed: 12 hours ago
San Francisco (SFO)to
Porto (OPO)
06/17/26 - 06/29/26
Roundtrip
Business
from
$ 5,903
Viewed: 4 hours ago
Los Angeles (LAX)to
Porto (OPO)
07/14/26 - 08/30/26
Roundtrip
Business
from
$ 5,537
Viewed: 21 hours ago
Houston (IAH)to
Porto (OPO)
07/17/26 - 08/19/26
Roundtrip
Business
from
$ 6,066
Viewed: 17 hours ago
Denver (DEN)to
Porto (OPO)
08/19/26 - 09/06/26
Roundtrip
Business
from
$ 5,984
Viewed: 4 hours ago
Washington, D.C. (IAD)to
Porto (OPO)
06/23/26 - 07/02/26
Roundtrip
Business
from
$ 5,369
Viewed: 1 hour ago
Boston (BOS)to
Porto (OPO)
06/24/26 - 07/01/26
Roundtrip
Business
from
$ 5,012
Viewed: 21 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
