United flights from Steamboat Springs to Porto from $ 841* or from $/mo

Featured daily fares for flights from Steamboat Springs (HDN) to Porto (OPO)

$ 331
Displaying fares for May-2025
31

Sa

MAY

10

Tu

05

Sa

06

We

01

Mo

SEP

01

We

OCT

01

Sa

NOV

01

Mo

DEC

01

Th

JAN

01

Su

FEB

01

Su

MAR

01

We

APR

Range$ 331-$ 351

More United deals on Steamboat Springs (HDN) to Porto (OPO) flights

$
More United deals on Steamboat Springs (HDN) to Porto (OPO) flights
From
To
Fare Type
Dates
Price
Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
08/07/25 - 08/21/25

from

$ 841
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
08/05/25 - 08/19/25

from

$ 861
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
08/06/25 - 08/20/25

from

$ 861
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
08/08/25 - 08/22/25

from

$ 921
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
08/05/25 - 08/12/25

from

$ 946
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
07/29/25 - 08/12/25

from

$ 946
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
07/08/25 - 07/22/25

from

$ 946
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
07/16/25 - 07/23/25

from

$ 946
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
08/06/25 - 08/13/25

from

$ 946
or from $/mo

Viewed: 22 hours ago

Steamboat Springs (HDN)Porto (OPO)Roundtrip
|
Economy
07/22/25 - 08/05/25

from

$ 946
or from $/mo

Viewed: 22 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.