Cheap Flights to Southern Idaho: Southern Idaho Flight Deals

View €94 flight on Sat, 20 Sep 2025Opens in a new window

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Cheap round-trip flights to Southern Idaho

Prices were available within the past 7 days and start at €94 for one-way flights and €188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 13 Sep - Sat, 20 Sep
LGA
New York
BOI
Boise
€188 Return, found 3 days ago
€188
Return
found 3 days ago
Select Delta flight, departing Sat, 13 Sep from New York to Boise, returning Sat, 20 Sep, priced at €188 found 3 days ago
Delta
Sat, 13 Sep - Sat, 20 Sep
JFK
New York
BOI
Boise
€188 Return, found 3 days ago
€188
Return
found 3 days ago
Select Delta flight, departing Sat, 13 Sep from New York to Boise, returning Sat, 20 Sep, priced at €188 found 3 days ago
American Airlines
Thu, 4 Sep - Sat, 13 Sep
LGA
New York
BOI
Boise
€190 Return, found 4 days ago
€190
Return
found 4 days ago
Select American Airlines flight, departing Thu, 4 Sep from New York to Boise, returning Sat, 13 Sep, priced at €190 found 4 days ago
Delta
Thu, 4 Sep - Sat, 13 Sep
JFK
New York
BOI
Boise
€190 Return, found 4 days ago
€190
Return
found 4 days ago
Select Delta flight, departing Thu, 4 Sep from New York to Boise, returning Sat, 13 Sep, priced at €190 found 4 days ago
United
Sat, 13 Sep - Sat, 20 Sep
LGA
New York
BOI
Boise
€253 Return, found 3 days ago
€253
Return
found 3 days ago
Select United flight, departing Sat, 13 Sep from New York to Boise, returning Sat, 20 Sep, priced at €253 found 3 days ago

Find the cheapest month to fly from Columbus (CMH) to Boise (BOI)

October is typically the cheapest month to fly

From €139 - €463 per traveller.

Graph displaying average flight prices per month

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Southern Idaho. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Southern Idaho. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Southern Idaho, or are just on the lookout for the best flights to Southern Idaho, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Southern Idaho to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Frequently asked questions

How do I find cheap flights to Southern Idaho that have flexible change policies?
It's as easy as can be with Expedia. Step 1: Type in your travel details and press "Search." Step 2: Check the "No change fee" box below the "Flexible change policies" subheading to the left of your screen. Step 3. Snag your cheap and flexible flight to Southern Idaho.
Which airlines fly to Southern Idaho?
You can take your pick of a good range of airlines that fly into or near Southern Idaho. A few of your best options are:

  • Alaska Airlines - 754 flights to or near Southern Idaho each month, including 754 flights to Boise Airport (BOI) per month.
  • Delta Air Lines - 489 flights to or near Southern Idaho each month, including 489 flights to Boise Airport (BOI) per month.
  • United Airlines - 303 flights to or near Southern Idaho each month, including 303 flights to Boise Airport (BOI) per month.

How can I find cheap tickets to Southern Idaho?
One of the best ways to nab cheap tickets to Southern Idaho is to be flexible with your dates. Search for your flights, then click "flexible dates" at the top of your results. It will reveal the cheapest prices for nearby days. The best price for a flight to Southern Idaho in the last seven days was €188. Booking well in advance will generally help you get an even better deal.
How much is a flight to Southern Idaho?
In the last seven days, return airfares to Southern Idaho sold from just €188 and reached a maximum of €779. For one-way trips taking off from New York (LGA), the lowest amount paid during this same period was €94.
What are the most popular airports to fly into in Southern Idaho?
Boise Airport (BOI) is the main jumping-off point for those travelling to Southern Idaho. Approximately 1,994 monthly flights touch down at this airport.
How much is a plane ticket to Southern Idaho?
In the last seven days, plane fares varied between €188 and €779. Take a look at our fabulous deals to Southern Idaho, make a booking and then start packing your suitcase.
What months are the cheapest to book a flight to Southern Idaho?
The ideal month to book affordable flights to Southern Idaho is February. Keep in mind that in the United States, an expensive time to purchase a ticket is the month of December.
Flights to Southern Idaho information
Destination airport
Idaho Falls Regional
Destination airport IATA code
IDA
Destination city name
Idaho Falls
Return price
€416

Trending flights to Southern Idaho

Prices were available within the past 7 days and start at €94 for one-way flights and €188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 30 Jan - Fri, 6 Feb
DUB
Dublin
BOI
Boise
€779 Return, found 2 days ago
€779
Return
found 2 days ago
Select Icelandair flight, departing Fri, 30 Jan from Dublin to Boise, returning Fri, 6 Feb, priced at €779 found 2 days ago
*Available to Expedia members.