$98 Cheap Flights from Chicago (ORD) to Boise (BOI)

View $98 flight on Tue, Sep 16, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Boise Airport (BOI)

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Cheap Flights from Chicago to Boise (ORD-BOI)

Prices were available within the past 7 days and start at $98 for one-way flights and $158 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 20 - Tue, Aug 26
ORD
Chicago
BOI
Boise
$158 Roundtrip, found 6 days ago
$158
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from Chicago to Boise, returning Tue, Aug 26, priced at $158 found 6 days ago
Alaska Airlines
Tue, Oct 28 - Tue, Nov 4
ORD
Chicago
BOI
Boise
$170 Roundtrip, found 5 days ago
$170
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Oct 28 from Chicago to Boise, returning Tue, Nov 4, priced at $170 found 5 days ago
Delta
Tue, Sep 2 - Tue, Sep 30
ORD
Chicago
BOI
Boise
$176 Roundtrip, found 5 days ago
$176
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Sep 2 from Chicago to Boise, returning Tue, Sep 30, priced at $176 found 5 days ago
Delta
Fri, Sep 5 - Fri, Sep 26
ORD
Chicago
BOI
Boise
$187 Roundtrip, found 5 days ago
$187
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, Sep 5 from Chicago to Boise, returning Fri, Sep 26, priced at $187 found 5 days ago
Hawaiian Airlines
Tue, Sep 16 - Tue, Sep 16
ORD
Chicago
BOI
Boise
$191 Roundtrip, found 14 hours ago
$191
Roundtrip
found 14 hours ago
Select Hawaiian Airlines flight, departing Tue, Sep 16 from Chicago to Boise, returning Tue, Sep 16, priced at $191 found 14 hours ago
Bargain Flight
Sat, Sep 27 - Tue, Sep 30
ORD
Chicago
BOI
Boise
$196 Roundtrip, found 7 hours ago
$196
Roundtrip
found 7 hours ago
Select Bargain Flight flight, departing Sat, Sep 27 from Chicago to Boise, returning Tue, Sep 30, priced at $196 found 7 hours ago
Alaska Airlines
Sat, Sep 6 - Wed, Sep 10
ORD
Chicago
BOI
Boise
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Sep 6 from Chicago to Boise, returning Wed, Sep 10, priced at $197 just found
American Airlines
Sat, Aug 23 - Sat, Aug 30
ORD
Chicago
BOI
Boise
$197 Roundtrip, found 10 hours ago
$197
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Sat, Aug 23 from Chicago to Boise, returning Sat, Aug 30, priced at $197 found 10 hours ago
Alaska Airlines
Wed, Oct 1 - Sat, Oct 4
ORD
Chicago
BOI
Boise
$198 Roundtrip, found 9 hours ago
$198
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Wed, Oct 1 from Chicago to Boise, returning Sat, Oct 4, priced at $198 found 9 hours ago
Delta
Sat, Sep 27 - Tue, Sep 30
ORD
Chicago
BOI
Boise
$199 Roundtrip, found 7 hours ago
$199
Roundtrip
found 7 hours ago
Select Delta flight, departing Sat, Sep 27 from Chicago to Boise, returning Tue, Sep 30, priced at $199 found 7 hours ago

Find the cheapest month to fly from Chicago (ORD) to Boise (BOI)

October is typically the cheapest month to fly

From $114 - $319 per traveler.

Graph displaying average flight prices per month

Alternative airports near Boise

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $257
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $257
Flights from Chicago (ORD) to Boise (BOI)
Origin airport
O'Hare Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$158
Distance
1433 mi
Average flight time
2 hours 53 mins

Chicago to Boise Flights

The cheapest times to fly from Chicago to Boise

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Boise are during the month of August. You can find some of the cheapest flights from Chicago to Boise with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Boise

Sunday is one of the best days to book for cheap flights from Chicago to Boise: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Boise

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $98 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Boise flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Boise airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Boise Airport (BOI) cost?
You can pick up cheap return flights starting from $151 from O'Hare Intl. Airport (ORD) to Boise Airport (BOI). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving ORD on August 19 2025 and touching down at BOI. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from ORD to BOI?
The cheapest flights from ORD to BOI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to Boise Airport (BOI)?
Fly nonstop from O'Hare Intl. Airport (ORD) to Boise Airport (BOI) on a United Airlines flight.
What is the cheapest airline that flies from ORD to BOI?
Take off from ORD to BOI with American Airlines. This airline currently offers the cheapest one-way fare on this route, starting at $76. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on October 4 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Boise Airport (BOI)?
On average, there's only 1 nonstop flight leaving from O'Hare Intl. Airport (ORD) to Boise Airport (BOI) each day. If this doesn't fit your plans, think about flights with layovers. Just customize your search results on Expedia to include one stop or more to find a better alternative.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Boise Airport (BOI)?
The 9 AM departures from ORD to BOI are the top choice for many travelers. These flights can come with a higher price due to their popularity. If you want to save on your trip, book during off-peak hours.
What day of the week has the most flights from ORD to BOI?
If you jet off on a Friday, you'll get the largest range of options for flights from O'Hare Intl. Airport (ORD) to Boise Airport (BOI).
What is the earliest flight from O'Hare Intl. Airport (ORD) to Boise Airport (BOI)?
Catch the earliest flight at around 9:00AM UTC-6, heading out of O'Hare Intl. Airport (ORD). You'll be in the air for about 4h 20m, reaching Boise Airport (BOI) at approximately 12:20PM UTC-7.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Boise Airport (BOI)?
The average flight duration from ORD to BOI is 4 hours and 18 minutes, covering a distance of 1,450 mi.
What airline has the least delays from ORD to BOI?
American Airlines has the strongest track record for on-time direct flights from O'Hare Intl. Airport (ORD) to Boise Airport (BOI), with an on-time score of 85%. Use the Expedia App to see your journey status before you jet off and get real-time alerts about any changes.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Boise Airport (BOI)?
To land at Boise Airport (BOI) without delays, choose a flight that leaves from O'Hare Intl. Airport (ORD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Boise from O'Hare Intl. Airport (ORD)?
Check out your flight options from O'Hare Intl. Airport (ORD) to Boise Airport (BOI). This is the only Boise airport you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Boise Airport (BOI) last-minute?
Booking your flight from ORD to BOI just before your trip is generally more expensive. But if you're flexible with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an ORD to BOI flight and hotel package?
You'll typically save money by securing an ORD to BOI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your preferred accommodations and flights, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Boise Airport (BOI)?
You can usually cancel or reschedule your ORD to BOI flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

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