$78 Cheap Flights from Boise (BOI) to Chicago (ORD)

View $78 flight on Fri, Sep 19, 2025Opens in a new window
Find available prices by choosing your travel dates.

Cheap Flights from Boise to Chicago (BOI-ORD)

Prices were available within the past 7 days and start at $78 for one-way flights and $155 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Sep 19 - Mon, Sep 22
BOI
Boise
ORD
Chicago
$155 Roundtrip, found 3 hours ago
$155
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Sep 19 from Boise to Chicago, returning Mon, Sep 22, priced at $155 found 3 hours ago
United
Fri, Sep 19 - Mon, Sep 22
BOI
Boise
ORD
Chicago
$161 Roundtrip, found 3 hours ago
$161
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Sep 19 from Boise to Chicago, returning Mon, Sep 22, priced at $161 found 3 hours ago
Southwest Airlines
Wed, Oct 1 - Sat, Oct 4
BOI
Boise
ORD
Chicago
$165 Roundtrip, found 2 hours ago
$165
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Wed, Oct 1 from Boise to Chicago, returning Sat, Oct 4, priced at $165 found 2 hours ago
Delta
Wed, Oct 1 - Sat, Oct 4
BOI
Boise
ORD
Chicago
$166 Roundtrip, found 2 hours ago
$166
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Oct 1 from Boise to Chicago, returning Sat, Oct 4, priced at $166 found 2 hours ago
Delta
Fri, Oct 3 - Tue, Oct 7
BOI
Boise
ORD
Chicago
$167 Roundtrip, found 2 hours ago
$167
Roundtrip
found 2 hours ago
Select Delta flight, departing Fri, Oct 3 from Boise to Chicago, returning Tue, Oct 7, priced at $167 found 2 hours ago
Southwest Airlines
Wed, Sep 17 - Sun, Sep 21
BOI
Boise
ORD
Chicago
$170 Roundtrip, just found
$170
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Sep 17 from Boise to Chicago, returning Sun, Sep 21, priced at $170 just found
Delta
Wed, Aug 13 - Wed, Aug 20
BOI
Boise
ORD
Chicago
$172 Roundtrip, found 3 hours ago
$172
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Aug 13 from Boise to Chicago, returning Wed, Aug 20, priced at $172 found 3 hours ago
Delta
Wed, Sep 17 - Sun, Sep 21
BOI
Boise
ORD
Chicago
$173 Roundtrip, just found
$173
Roundtrip
just found
Select Delta flight, departing Wed, Sep 17 from Boise to Chicago, returning Sun, Sep 21, priced at $173 just found
Alaska Airlines
Tue, May 13 - Wed, May 14
BOI
Boise
ORD
Chicago
$174 Roundtrip, found 2 days ago
$174
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, May 13 from Boise to Chicago, returning Wed, May 14, priced at $174 found 2 days ago
Frontier Airlines
Thu, Jun 5 - Tue, Jun 10
BOI
Boise
ORD
Chicago
$197 Roundtrip, found 22 hours ago
$197
Roundtrip
found 22 hours ago
Select Frontier Airlines flight, departing Thu, Jun 5 from Boise to Chicago, returning Tue, Jun 10, priced at $197 found 22 hours ago

Frequently asked questions

How much does a flight from Boise Airport (BOI) to O'Hare Intl. Airport (ORD) cost?
Snag cheap return fares starting at $260 from Boise Airport (BOI) to O’Hare Intl. Airport (ORD). 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 BOI on April 26 2025 and touching down at ORD. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from BOI to ORD?
The cheapest flights from BOI to ORD 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 Boise Airport (BOI) to O'Hare Intl. Airport (ORD)?
You can fly straight from Boise Airport (BOI) to O’Hare Intl. Airport (ORD) on a United Airlines flight.
What is the cheapest airline that flies from BOI to ORD?
Jet off from BOI to ORD with United. This carrier currently has the lowest one-way fare for this route, starting at $78. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOI on July 4 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Boise Airport (BOI) to O'Hare Intl. Airport (ORD)?
On average, Boise Airport (BOI) only offers 1 nonstop flight to O’Hare Intl. Airport (ORD) per day. To explore more options, try our easy-to-use filters. Simply enter your travel dates, then select “1 Stop” or “2+ Stops” to discover flights offering layovers.
What are the most popular departure times for flights from Boise Airport (BOI) to O'Hare Intl. Airport (ORD)?
Flights between BOI and ORD tend to be busiest at 12 PM. If you’d like a more relaxed trip and potentially cheaper prices, look for a departure that’s outside typical rush times.
What day of the week has the most flights from BOI to ORD?
Friday offers the most flights from Boise Airport (BOI) to O’Hare Intl. Airport (ORD). Consider traveling on this day and you’ll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Boise Airport (BOI) to O'Hare Intl. Airport (ORD)?
Hop on the earliest flight at around 8:00AM UTC-7, departing from Boise Airport (BOI). You’ll be flying for about 3h 45m, reaching O’Hare Intl. Airport (ORD) at approximately 12:45PM UTC-6.
How long does it take to fly from Boise Airport (BOI) to O'Hare Intl. Airport (ORD)?
Flights from BOI to ORD have an average travel time of 3 hours and 45 minutes. The total distance between the two airports is 1,450 mi.
What airline has the least delays from BOI to ORD?
Consider traveling with Alaska Airlines if you’d like to go straight from Boise Airport (BOI) to O’Hare Intl. Airport (ORD) without any interruptions. This carrier has the best track record for punctuality, with an on-time performance of 82%. Want to get notified of any changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Boise Airport (BOI) to O'Hare Intl. Airport (ORD)?
Book a flight from Boise Airport (BOI) to O’Hare Intl. Airport (ORD) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**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 Chicago from Boise Airport (BOI)?
Explore your flight options from Boise Airport (BOI) to O’Hare Intl. Airport (ORD). This is the only airport in Chicago you can land at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to O'Hare Intl. Airport (ORD) last-minute?
Last-minute fares from BOI to ORD are generally more expensive. To lock in the lowest rates, start searching for flights early. That being said, if your travel plans are flexible, you may score a cheap ticket right before you leave.
Is it cheaper to book a BOI to ORD flight and hotel package?
Booking a BOI to ORD flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our wide range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to O'Hare Intl. Airport (ORD)?
If you reserved your BOI to ORD flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you’d like more information.
*Available to One Key members.