Cheap Flights to Idaho

View NZ$201 flight on Tue, 2 June 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to Idaho

  • Alaska Airlines

  • Delta

  • United

  • American Airlines

  • Southwest Airlines

  • Air Canada

  • Frontier Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheapest Flights to Idaho

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 14 Jan - Mon, 18 Jan
SEA
Seattle
GEG
Spokane
NZ$437 Return, found 6 days ago
NZ$437
Return
found 6 days ago
Select Alaska Airlines flight, departing Thu, 14 Jan from Seattle to Spokane, returning Mon, 18 Jan, priced at NZ$437 found 6 days ago
Delta
Thu, 14 Jan - Mon, 18 Jan
SEA
Seattle
GEG
Spokane
NZ$437 Return, found 6 days ago
NZ$437
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Jan from Seattle to Spokane, returning Mon, 18 Jan, priced at NZ$437 found 6 days ago
Alaska Airlines
Thu, 24 Dec - Sat, 2 Jan
SEA
Seattle
GEG
Spokane
NZ$438 Return, found 12 hours ago
NZ$438
Return
found 12 hours ago
Select Alaska Airlines flight, departing Thu, 24 Dec from Seattle to Spokane, returning Sat, 2 Jan, priced at NZ$438 found 12 hours ago
Alaska Airlines
Thu, 24 Dec - Sat, 2 Jan
SEA
Seattle
GEG
Spokane
NZ$455 Return, found 12 hours ago
NZ$455
Return
found 12 hours ago
Select Alaska Airlines flight, departing Thu, 24 Dec from Seattle to Spokane, returning Sat, 2 Jan, priced at NZ$455 found 12 hours ago
Delta
Thu, 14 Jan - Mon, 18 Jan
SEA
Seattle
GEG
Spokane
NZ$470 Return, found 6 days ago
NZ$470
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Jan from Seattle to Spokane, returning Mon, 18 Jan, priced at NZ$470 found 6 days ago
Delta
Thu, 14 Jan - Mon, 18 Jan
SEA
Seattle
GEG
Spokane
NZ$472 Return, found 6 days ago
NZ$472
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Jan from Seattle to Spokane, returning Mon, 18 Jan, priced at NZ$472 found 6 days ago
Delta
Thu, 24 Dec - Sat, 2 Jan
SEA
Seattle
GEG
Spokane
NZ$474 Return, found 12 hours ago
NZ$474
Return
found 12 hours ago
Select Delta flight, departing Thu, 24 Dec from Seattle to Spokane, returning Sat, 2 Jan, priced at NZ$474 found 12 hours ago
Alaska Airlines
Fri, 3 July - Fri, 10 July
SEA
Seattle
MSO
Missoula
NZ$490 Return, found 9 hours ago
NZ$490
Return
found 9 hours ago
Select Alaska Airlines flight, departing Fri, 3 July from Seattle to Missoula, returning Fri, 10 July, priced at NZ$490 found 9 hours ago
United
Tue, 7 July - Fri, 10 July
YVR
Vancouver
MSO
Missoula
NZ$930 Return, found 12 hours ago
NZ$930
Return
found 12 hours ago
Select United flight, departing Tue, 7 July from Vancouver to Missoula, returning Fri, 10 July, priced at NZ$930 found 12 hours ago
American Airlines
Thu, 14 Jan - Mon, 18 Jan
SEA
Seattle
GEG
Spokane
NZ$1,374 Return, found 6 days ago
NZ$1,374
Return
found 6 days ago
Select American Airlines flight, departing Thu, 14 Jan from Seattle to Spokane, returning Mon, 18 Jan, priced at NZ$1,374 found 6 days ago

Trending flights to Idaho

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 6 May - Tue, 16 June
CHC
Christchurch
GEG
Spokane
NZ$2,083 Return, found 8 hours ago
NZ$2,083
Return
found 8 hours ago
Select American Airlines flight, departing Wed, 6 May from Christchurch to Spokane, returning Tue, 16 June, priced at NZ$2,083 found 8 hours ago

Frequently asked questions

How do I find cheap flights to Idaho that have flexible change policies?
By using our smart "No change fee" filter, that's how. Simply type in your origin, destination and dates, click "Search," then tick the checkbox directly under the "Flexible change policies" heading (it's on the left of your screen). Expedia makes it simple to find flexible, low-cost fares to Idaho.
Which airlines fly to Idaho?
Wherever you want to wander in Idaho and whenever you're hoping to depart, you'll find your perfect flight with one of these top airlines:

  • Alaska Airlines - 815 flights to or near Idaho each month, including 754 flights to Boise Airport (BOI) and 30 flights to Friedman Memorial Airport (SUN) per month.
  • Delta Air Lines - 637 flights to or near Idaho each month, including 489 flights to Boise Airport (BOI) and 86 flights to Idaho Falls Regional Airport (IDA) per month.
  • United Airlines - 438 flights to or near Idaho each month, including 303 flights to Boise Airport (BOI) and 91 flights to Idaho Falls Regional Airport (IDA) per month.

How can I find cheap tickets to Idaho?
One of the best ways to find cheap tickets to Idaho is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. It'll bring up the cheapest prices for nearby days. The best price for a flight to Idaho in the last seven days was NZ$437. Booking well ahead will generally help you get an even bigger bargain.
How much is a flight to Idaho?
One-way flights departing from Seattle (SEA) sold for as little as NZ$201 in the last seven days. During this time, the price of a round-trip fare to Idaho varied between NZ$437 and NZ$2,083. If you find a deal, book quickly — these prices don't hang about.
What are the most popular airports to fly into in Idaho?
Touch down at any one of these main airports in Idaho and you'll be in the perfect position to experience all that this renowned region has to offer:

  • Boise Airport (BOI) - 1 994 flights per month.
  • Idaho Falls Regional Airport (IDA) - 334 flights per month.
  • Friedman Memorial Airport (SUN) - 134 flights per month.

When is the cheapest time to fly to Idaho?
Depart for Idaho earlier in the week and you'll usually be rewarded with lower fares. Tuesday is generally the cheapest day to jet off, followed closely by Monday. If you're eager to avoid the most expensive flights, keep clear of Saturdays.
How much is a plane ticket to Idaho?
In the last seven days, plane fares to Idaho fluctuated between NZ$437 and NZ$2,083. Prices tend to go up over time, so book a top deal today.
What is the best time to go to Idaho?
Summer starts June 20 in the Northern Hemisphere, and these warmer months are a terrific time to tour the thrilling Idaho city of Boise. Average temperatures vary between 16ºC and 27ºC throughout this season. The largest crowds are found here in May, July and August.
What months are the cheapest to book a flight to Idaho?
The most cost-effective month to land a flight to Idaho is February, while prices are at a premium in December. Steer clear of this month if you're on a budget.

Travel information

Idaho Flights Information

Airlines serving
Alaska Airlines, Delta, Air Canada, American Airlines, United
Roundtrip price
from NZ$437
Idaho Flights Information

Explore a world of travel with Expedia

*Available to Expedia members.