Direct (nonstop) flights from Idaho Falls to Portland
2 airlines fly nonstop from Idaho Falls Rgnl (IDA) to Portland International (PDX). It's 538 miles (866 km), about 1h 41m in the air. Operated by Alaska Airlines, Allegiant Air.
Alaska Airlines
Allegiant Air
Route data last updated: May 29, 2026
Airlines with non-stop flights
AS
Alaska Airlines
Alternative Routes
Other ways to fly from Idaho Falls to Portland with one stop · direct emits 100 kg CO₂ per passenger
Looking for the return flight?
PDX → IDA: Flights from Portland to Idaho FallsOther direct flights from Idaho Falls
Direct flights from Portland (PDX)
Frequently Asked Questions
How long is the direct flight from Idaho Falls to Portland?
A nonstop flight from Idaho Falls (IDA) to Portland (PDX) takes approximately 1 hours and 41 minutes. The distance is 538 miles (866 km).
Which airlines fly nonstop from Idaho Falls to Portland?
2 airlines: Alaska Airlines, Allegiant Air.
Is there a nonstop flight from Idaho Falls to Portland?
Yes. 2 airlines: Alaska Airlines, Allegiant Air.
How far is Idaho Falls from Portland?
The flight distance from Idaho Falls to Portland is 538 miles (866 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Idaho Falls to Portland?
At 1h 41m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Idaho Falls to Portland?
Roughly 100 kg CO2 per passenger one-way. That's about the same as driving 500 km.
Is the return flight from Portland to Idaho Falls also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Idaho Falls to Portland?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Idaho Falls Rgnl for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.