Idaho Falls (IDA) to Portland (PDX) flights
SkyWest Airlines, Allegiant Air fly nonstop from Idaho Falls Regional Airport to Portland International Airport, with about 9 flights a week in July 2026. The 539-mile flight takes about 1h 41m gate to gate.
- Distance
- 539 mi · 867 km
- Flight time
- 1h 41m
- Airlines
- 2
- Seats filled
- 83%
Airlines flying IDA to PDX
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 7 | Embraer E175 | 5,260 | 1h 41m |
| Allegiant Air | 2 | Airbus A320-100/200 | 5,576 | 1h 41m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
IDA to PDX flight schedule
3 flight numbers flew this route in August 2026. The first usually leaves at 3:55pm and the last at 4:14pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| G4 1598Allegiant Air | 3:55pm | 4:36pm | 4 | 44% |
| AS 3307Alaska Airlines · operated by SkyWest Airlines | 3:57pm | 4:50pm | 13 | 92% |
| AS 3421Alaska Airlines · operated by SkyWest Airlines | 4:14pm | 4:50pm | 18 | 51% |
Is IDA to PDX on time?
From September 2025 to August 2026, 63% of 151 flights arrived within 15 minutes of schedule and 0% were cancelled. Flights leaving around 3pm were the most punctual (77%), those around 6pm the least (42%). Most delay time was caused by late-arriving aircraft (60%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 111 | 63% | 16 min | 0% |
| Allegiant Air | 40 | 63% | 81 min | 0% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 3pm to 4pm | 31 | 77% | |
| 4pm to 5pm | 100 | 59% | |
| 6pm to 7pm | 12 | 42% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 4 | 587 | |
| November 2025 | 4 | 525 | |
| December 2025 | 8 | 1,104 | |
| January 2026 | 2 | 222 | |
| May 2026 | 22 | 1,669 | |
| June 2026 | 39 | 3,179 | |
| July 2026 | 40 | 3,550 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.