Find Cheap Flights from Chicago to Boise (CHI - BOI)

Flights overview

Useful information for finding cheap flights from Chicago to Boise and booking your next trip

Cheapest round-trip flights	$210	Frontier 1 stop 16 hr Mon, Jun 1 — Tue, Jun 9	The cheapest round-trip flight from Chicago to Boise is currently $210
Cheapest one-way flight	$111	Frontier 1 stop 16 hr Wed, Jul 15	The cheapest one-way flight from Chicago to Boise is currently $111
Cheapest nonstop flights	$315	American Nonstop 4 hr Sat, Jul 4 — Sat, Jul 11	The cheapest nonstop round-trip flight from Chicago to Boise is currently $315
Last-minute weekend getaway	$360	Frontier 1 stop 16 hr Sat, May 9 — Mon, May 11	The cheapest last-minute weekend getaway from Chicago to Boise is currently $360
Cheapest business class flights	$542	Frontier 1 stop 16 hr Sat, Jul 11 — Sun, Jul 19	The cheapest business class round-trip flight from Chicago to Boise is currently $542

Fastest flight	3 hr 35 min	The fastest nonstop flight from Chicago to Boise takes 3 hr 35 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Chicago to Boise is typically September. The most expensive month to fly is typically May.

September Cheapest	Typical prices: $170–295
May Most expensive	Typical prices: $270–390

Popular airlines from Chicago to Boise

Southwest

from $335

Typical price: $270–450

2242 weekly connecting flights

MDW, ORD - BOI Every day
United

Nonstop

from $325

Typical price: $255–470

14 weekly nonstop flights

ORD - BOI Every day

464 weekly connecting flights

ORD - BOI Every day
Delta

from $335

Typical price: $260–490

547 weekly connecting flights

MDW, ORD - BOI Every day
American

Nonstop

from $315

Typical price: $285–510

7 weekly nonstop flights

ORD - BOI Every day

140 weekly connecting flights

ORD - BOI Every day
Alaska

from $335

Typical price: $250–540

123 weekly connecting flights

ORD - BOI Every day
Frontier

from $210

Typical price: $205–640

26 weekly connecting flights

MDW, ORD - BOI Every Tue, Wed, Fri, Sat

Popular airports near Chicago

Chicago O'Hare International Airport (ORD)

Chicago United States 26 min 16 mi
Chicago Midway International Airport (MDW)

Chicago United States 25 min 9 mi
Milwaukee Mitchell International Airport (MKE)

Milwaukee United States 1 hr 23 min 75 mi
Indianapolis International Airport (IND)

Indianapolis United States 2 hr 58 min 165 mi

Popular airports near Boise

Boise Airport (BOI)

Boise United States 19 min 3 mi
Friedman Memorial Airport (SUN) (SUN)

Sun Valley United States 2 hr 16 min 96 mi
Magic Valley Regional Airport (TWF)

Twin Falls United States 2 hr 9 min 116 mi
Pocatello Regional Airport (PIH)

Pocatello United States 3 hr 16 min 188 mi

Frequently asked questions about flying from Chicago to Boise

The cheapest flights from Chicago to Boise are usually in September. Typical ticket prices in September range from $170 to $295.

The cheapest round-trip flight from Chicago to Boise recently found on Google Flights was with Frontier from $210. The cheapest one-way flight was with Frontier from $111.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Chicago to Boise is $335, flying from May 28 to Jun 3.
The cheapest United flight from Chicago to Boise is $325, flying from May 28 to Jun 3.
The cheapest Delta flight from Chicago to Boise is $335, flying from Jul 3 to Jul 11.
The cheapest American flight from Chicago to Boise is $315, flying from Jul 11 to Jul 18.
The cheapest Alaska flight from Chicago to Boise is $335, flying from May 28 to Jun 3.
The cheapest Frontier flight from Chicago to Boise is $210, flying from Jun 1 to Jun 9.

The cheapest round-trip flight from Chicago to Boise starts at $210 from Mon, Jun 1 to Tue, Jun 9. The cheapest one-way flight starts at $111 and departs on Wed, Jul 15.

3 hr 35 min is the shortest flight time from Chicago to Boise.

The most popular time to visit Boise is summer (Jun–Aug), when days are typically hot and dry. Temperatures can drop below freezing in winter (Nov–Feb). Big-name acts and local bands perform at the Boise Music Festival (Jun).

It's easy to use Google Flights to find the cheapest days to fly from Chicago to Boise.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Chicago to Boise really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Chicago to Boise.

In terms of nonstop flights, United is the most popular. United offers 14 nonstop flights and 464 connecting flights per week. United flies from Chicago O'Hare International Airport (ORD) to Boise Airport (BOI) .

In terms of flights, Southwest is the most popular. Southwest offers 2,242 connecting flights per week. Southwest flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Boise Airport (BOI) .

Other popular airlines flying from Chicago to Boise are:

Delta offers 547 connecting flights per week. Delta flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Boise Airport (BOI) .
American offers 7 nonstop flights and 140 connecting flights per week. American flies from Chicago O'Hare International Airport (ORD) to Boise Airport (BOI) .
Alaska offers 123 connecting flights per week. Alaska flies from Chicago O'Hare International Airport (ORD) to Boise Airport (BOI) .
Frontier offers 26 connecting flights per week. Frontier flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Boise Airport (BOI) .

The number of connecting flights refers to distinct flights with at least one stop between Chicago and Boise.

The cheapest round-trip flight from Chicago to Boise recently found on Google Flights was with Frontier from $210. The cheapest one-way flight was with Frontier from $111.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Chicago to Boise is $335, flying from May 28 to Jun 3.
The cheapest United flight from Chicago to Boise is $325, flying from May 28 to Jun 3.
The cheapest Delta flight from Chicago to Boise is $335, flying from Jul 3 to Jul 11.
The cheapest American flight from Chicago to Boise is $315, flying from Jul 11 to Jul 18.
The cheapest Alaska flight from Chicago to Boise is $335, flying from May 28 to Jun 3.
The cheapest Frontier flight from Chicago to Boise is $210, flying from Jun 1 to Jun 9.

United and American fly direct from Chicago to Boise.

There are 14 United direct flights from Chicago to Boise per week. Flights are available every day.
There are 7 American direct flights from Chicago to Boise per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Chicago and Boise at price $360 is offered by Frontier from Sat, May 9 to Mon, May 11.

United and American fly direct from Chicago to Boise.

There are 14 United direct flights from Chicago to Boise per week. Flights are available every day.
There are 7 American direct flights from Chicago to Boise per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Chicago to Boise on a daily basis.

The cheapest direct (nonstop) round-trip flights between Chicago and Boise start at $315 from Sat, Jul 4 to Sat, Jul 11 with American.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Chicago to Boise, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Chicago and Boise start at $542 from Sat, Jul 11 to Sun, Jul 19 with Frontier.

The cheapest economy class round-trip flights between Chicago and Boise start at $210 from Mon, Jun 1 to Tue, Jun 9.

To book business class trips from Chicago to Boise, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Chicago and Boise starts at $360 from Sat, May 9 to Mon, May 11 with Frontier.

The cheapest last-minute deal between Chicago and Boise at price $360 is offered by Frontier from Sat, May 9 to Mon, May 11.

To find last-minute flight deals from Chicago to Boise, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.