Earn point on your loyalty program!arrow arc left

Cheap flights from Idaho Falls (IDA) to Porto (OPO)

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 Idaho Falls (IDA) to Porto (OPO)

How to find the cheapest flight from Idaho Falls (IDA) 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 Idaho Falls (IDA) 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 Idaho Falls (IDA) to Porto (OPO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Idaho Falls to Porto in April , May 2026

30 Apr - 18 May $ 1,126.00
IDA
Idaho Falls
Allegiant Air
3 STOPS
OPO
Porto
OPO
Porto
Allegiant Air
3 STOPS
IDA
Idaho Falls
Pick dates
26 Apr - 18 May $ 1,152.00
IDA
Idaho Falls
Allegiant Air
3 STOPS
OPO
Porto
OPO
Porto
Allegiant Air
3 STOPS
IDA
Idaho Falls
Pick dates
24 Apr - 18 May $ 1,222.00
IDA
Idaho Falls
Allegiant Air
3 STOPS
OPO
Porto
OPO
Porto
Allegiant Air
3 STOPS
IDA
Idaho Falls
Pick dates

Last minute flights from Idaho Falls to Porto

26 Apr - 01 May $ 1,365.00
IDA
Idaho Falls
Alaska Airlines
3 STOPS
OPO
Porto
OPO
Porto
Alaska Airlines
3 STOPS
IDA
Idaho Falls
Pick dates
26 Apr - 01 May $ 1,421.00
IDA
Idaho Falls
Alaska Airlines
3 STOPS
OPO
Porto
OPO
Porto
Alaska Airlines
3 STOPS
IDA
Idaho Falls
Pick dates
24 Apr - 01 May $ 1,490.00
IDA
Idaho Falls
Alaska Airlines
3 STOPS
OPO
Porto
OPO
Porto
Alaska Airlines
3 STOPS
IDA
Idaho Falls
Pick dates

One-way flights to Porto from Idaho Falls

6:00 AM - 3:45 PM
Norwegian Air Shuttle
3 Stops
29h 30m
IDA - OPO
$ 585
Kiwi
Pick dates
5:20 PM - 9:25 AM
United Airlines
2 Stops
58h 55m
IDA - OPO
$ 681
Kiwi
Pick dates
10:40 AM - 9:45 PM
United Airlines
2 Stops
16h 5m
IDA - OPO
$ 1,103
Kiwi
Pick dates

How to find the cheapest flight from Idaho Falls (IDA) to Porto (OPO)

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 Idaho Falls (IDA) 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 Idaho Falls (IDA) to Porto (OPO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.