Lowest Priced Flights to Idaho Falls on Alaska Airlines starting at $159*
Most popular flights to Idaho Falls on Alaska Airlines.*
Portland (PDX)to
Idaho Falls (IDA)Portland (PDX)to
Idaho Falls (IDA)Portland (PDX)to
Idaho Falls (IDA)Seattle (SEA)to
Idaho Falls (IDA)Seattle (SEA)to
Idaho Falls (IDA)Seattle (SEA)to
Idaho Falls (IDA)Seattle (SEA)to
Idaho Falls (IDA)Seattle (SEA)to
Idaho Falls (IDA)Boise (BOI)to
Idaho Falls (IDA)Boise (BOI)to
Idaho Falls (IDA)Boise (BOI)to
Idaho Falls (IDA)Boise (BOI)to
Idaho Falls (IDA)Boise (BOI)to
Idaho Falls (IDA)Top offers for Idaho Falls one-way flights.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | Idaho Falls (IDA) | One-way | Saver | Depart: Sep 26, 2026 | From $159 Seen: 8 hours ago | |
| Seattle (SEA) | Idaho Falls (IDA) | One-way | Saver | Depart: Oct 20, 2026 | From $159 Seen: 8 hours ago | |
| Seattle (SEA) | Idaho Falls (IDA) | One-way | Saver | Depart: Oct 21, 2026 | From $159 Seen: 8 hours ago | |
| Seattle (SEA) | Idaho Falls (IDA) | One-way | Saver | Depart: Oct 28, 2026 | From $159 Seen: 8 hours ago | |
| Seattle (SEA) | Idaho Falls (IDA) | One-way | Saver | Depart: Nov 11, 2026 | From $159 Seen: 8 hours ago | |
| Seattle (SEA) | Idaho Falls (IDA) | One-way | Saver | Depart: Nov 14, 2026 | From $159 Seen: 8 hours ago | |
| Portland (PDX) | Idaho Falls (IDA) | One-way | Saver | Depart: Dec 11, 2026 | From $159 Seen: 13 hours ago | |
| Boise (BOI) | Idaho Falls (IDA) | One-way | Saver | Depart: Dec 12, 2026 | From $232 Seen: 8 hours ago | |
| Boise (BOI) | Idaho Falls (IDA) | One-way | Saver | Depart: Dec 5, 2026 | From $232 Seen: 8 hours ago | |
| Boise (BOI) | Idaho Falls (IDA) | One-way | Saver | Depart: Dec 11, 2026 | From $232 Seen: 8 hours ago |
Plan a trip to Idaho Falls
Set on the Snake River that runs from Wyoming to Eastern Washington, Idaho Falls was first developed when an industrious settler began running a ferry to shuttle travelers from one side of the river to the other in 1864. Not long after, a bridge was built downstream and the small outpost (originally called Taylor’s Crossing) grew as a key junction to the West. The city is now named after the picturesque waterfalls that also generate hydroelectric power. Take in the views from the ​​Idaho Falls River Walk, a five-mile trail along the scenic riverbanks. Immerse yourself in nature even further with a two-hour drive to see either the majestic mountains of Grand Teton National Park or Yellowstone National Park’s famous landmarks.
View airport information for Idaho Falls (IDA)