Cheap flights to Idaho

View €70 flight on Tue, 5 May 2026Opens in a new window

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 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Idaho

Prices were available within the past 7 days and start at €70 for one-way flights and €105 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 9 May - Mon, 11 May
SEA
Seattle
GEG
Spokane
€105 Return, found 1 day ago
€105
Return
found 1 day ago
Select Delta flight, departing Sat, 9 May from Seattle to Spokane, returning Mon, 11 May, priced at €105 found 1 day ago
Delta
Fri, 17 Apr - Sun, 19 Apr
SEA
Seattle
BOI
Boise
€105 Return, found 1 day ago
€105
Return
found 1 day ago
Select Delta flight, departing Fri, 17 Apr from Seattle to Boise, returning Sun, 19 Apr, priced at €105 found 1 day ago
United
Wed, 13 May - Wed, 3 Jun
SEA
Seattle
BOI
Boise
€232 Return, found 2 days ago
€232
Return
found 2 days ago
Select United flight, departing Wed, 13 May from Seattle to Boise, returning Wed, 3 Jun, priced at €232 found 2 days ago
Delta
Wed, 26 Aug - Fri, 4 Sept
SEA
Seattle
MSO
Missoula
€284 Return, found 5 days ago
€284
Return
found 5 days ago
Select Delta flight, departing Wed, 26 Aug from Seattle to Missoula, returning Fri, 4 Sept, priced at €284 found 5 days ago
American Airlines
Thu, 2 Jul - Mon, 6 Jul
SEA
Seattle
PUW
Pullman
€305 Return, found 2 days ago
€305
Return
found 2 days ago
Select American Airlines flight, departing Thu, 2 Jul from Seattle to Pullman, returning Mon, 6 Jul, priced at €305 found 2 days ago
American Airlines
Thu, 26 Mar - Sun, 29 Mar
SEA
Seattle
JAC
Jackson
€612 Return, found 3 days ago
€612
Return
found 3 days ago
Select American Airlines flight, departing Thu, 26 Mar from Seattle to Jackson, returning Sun, 29 Mar, priced at €612 found 3 days ago
Scandinavian Airlines
Sat, 29 Aug - Sun, 13 Sept
DUB
Dublin
BOI
Boise
€708 Return, found 15 hours ago
€708
Return
found 15 hours ago
Select Scandinavian Airlines flight, departing Sat, 29 Aug from Dublin to Boise, returning Sun, 13 Sept, priced at €708 found 15 hours ago
Lufthansa
Wed, 1 Apr - Sun, 5 Apr
DUB
Dublin
JAC
Jackson
€919 Return, found 4 days ago
€919
Return
found 4 days ago
Select Lufthansa flight, departing Wed, 1 Apr from Dublin to Jackson, returning Sun, 5 Apr, priced at €919 found 4 days ago
Lufthansa
Tue, 14 Apr - Wed, 22 Apr
DUB
Dublin
BOI
Boise
€919 Return, found 3 days ago
€919
Return
found 3 days ago
Select Lufthansa flight, departing Tue, 14 Apr from Dublin to Boise, returning Wed, 22 Apr, priced at €919 found 3 days ago
Icelandair
Mon, 21 Sept - Mon, 5 Oct
DUB
Dublin
IDA
Idaho Falls
€920 Return, found 5 days ago
€920
Return
found 5 days ago
Select Icelandair flight, departing Mon, 21 Sept from Dublin to Idaho Falls, returning Mon, 5 Oct, priced at €920 found 5 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.

Scandinavian Airlines
Sat, 29 Aug - Sun, 13 Sept
DUB
Dublin
BOI
Boise
€708 Return, found 15 hours ago
€708
Return
found 15 hours ago
Select Scandinavian Airlines flight, departing Sat, 29 Aug from Dublin to Boise, returning Sun, 13 Sept, priced at €708 found 15 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 €105. 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 €70 in the last seven days. During this time, the price of a round-trip fare to Idaho varied between €105 and €920. 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.

How much is a plane ticket to Idaho?
In the last seven days, plane fares to Idaho fluctuated between €105 and €920. 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.

Book with confidence

About Idaho

Expedia offers flights to Idaho to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Idaho or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Idaho

Explore a world of travel with Expedia

*Available to Expedia members.