$148 Cheap flight deals from Chicago (CHI) to Sun Valley (BOI)

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This Weekend's Flight Deals from Chicago to Sun Valley

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, May 29 - Sun, Jun 21
ORD
O'Hare Intl.
BOI
Boise
$497 Roundtrip, found 1 day ago
$497
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, May 29 from O'Hare Intl. to Boise, returning Sun, Jun 21, priced at $497 found 1 day ago

Airfares from $148 One Way, $288 Round Trip from Chicago to Sun Valley

Prices starting at $288 for return flights and $148 for one-way flights to Sun Valley were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 5 - Tue, Sep 8
ORD
Chicago
BOI
Boise
$288 Roundtrip, found 5 days ago
$288
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Chicago to Boise, returning Tue, Sep 8, priced at $288 found 5 days ago
Tue, Aug 25 - Tue, Sep 1
ORD
Chicago
BOI
Boise
$293 Roundtrip, found 3 days ago
$293
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Aug 25 from Chicago to Boise, returning Tue, Sep 1, priced at $293 found 3 days ago
Sat, Sep 5 - Tue, Sep 8
ORD
Chicago
BOI
Boise
$293 Roundtrip, found 5 days ago
$293
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep 5 from Chicago to Boise, returning Tue, Sep 8, priced at $293 found 5 days ago
Tue, Aug 11 - Sat, Aug 15
ORD
Chicago
BOI
Boise
$295 Roundtrip, found 20 hours ago
$295
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Tue, Aug 11 from Chicago to Boise, returning Sat, Aug 15, priced at $295 found 20 hours ago
Tue, Aug 11 - Sat, Aug 15
ORD
Chicago
BOI
Boise
$315 Roundtrip, found 20 hours ago
$315
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Tue, Aug 11 from Chicago to Boise, returning Sat, Aug 15, priced at $315 found 20 hours ago

Sun Valley economy flight packages

Price found within the past 48 hours. Click for updated prices.
Boise Guest House
2.0-star property

Boise Guest House

9.6/10 Exceptional! (198 reviews)

Jul 1 - Jul 8

7 night stay

Chicago (CHI) to Boise (BOI)

Delta • Non-stop • Coach

Boise (BOI) to Chicago (CHI)

American Airlines • Non-stop • Coach
Price was $1,054, price is now $730 per person
$730
per person
found 20 hours ago
An absolute adorable gem of a place! Thank you so so much for a very pleasant experience.

Reviewed on Oct 2, 2024

The Avery Hotel
3.5-star property

The Avery Hotel

9.6/10 Exceptional! (385 reviews)

Jul 1 - Jul 8

7 night stay

Chicago (CHI) to Boise (BOI)

Delta • Non-stop • Coach

Boise (BOI) to Chicago (CHI)

American Airlines • Non-stop • Coach
Price was $1,193, price is now $745 per person
$745
per person
found 20 hours ago
This boutique is so nice and very beautifully decorated.

Reviewed on Aug 14, 2025

SpringHill Suites Boise West/Eagle
3.0-star property

SpringHill Suites Boise West/Eagle

9/10 Wonderful! (1,001 reviews)

Jul 1 - Jul 8

7 night stay

Chicago (CHI) to Boise (BOI)

Delta • Non-stop • Coach

Boise (BOI) to Chicago (CHI)

American Airlines • Non-stop • Coach
Price was $1,032, price is now $758 per person
$758
per person
found 20 hours ago
Good size suite rooms....clean convenient location especially in regards to Eagle ID price reasonable

Reviewed on Feb 23, 2026

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More About Flying To Sun Valley from Chicago

Route Information for Flights from Chicago to Sun Valley

Origin Airport IATA Code
CHI
Destination Airport IATA Code
BOI
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Chicago to Sun Valley

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Access Your Flight Information Anytime

Use the Orbitz app or the mobile Orbitz site, m.orbtiz.com, to see information about your Chicago to Sun Valley flights anytime you need it. Your itinerary is also sent to your email address for reference. Access updates on your flights from Chicago to Sun Valley on your mobile device too, including delays and baggage claim details.

Cheap Air Ticket Prices Guaranteed

Orbitz is your number one source for low fares for Chicago to Sun Valley flights. Our low price guarantee on domestic and international air tickets give you great savings for a perfect trip to Sun Valley. Need hotels too? You can book them last minute on your mobile phone.

Frequently asked questions

Are there non-stop flights from Chicago to Sun Valley?
There most certainly are. As a matter of fact, there are 3 airlines that will take you directly from O'Hare Intl. Airport (ORD) to BOI. Book a ticket with one of these carriers:

  • United Airlines
  • Alaska Airlines
  • American Airlines

What is the shortest flight from Chicago to Sun Valley?
The fastest flight from Chicago, IL (MDW-Midway Intl.) to Boise, ID (BOI) is 4 hours and 30 minutes. Bring something extra to help pass the time, like an interesting read or your travel journal.
What airlines fly from Chicago to Sun Valley most frequently?
The carriers that fly frequently between O'Hare Intl. Airport (ORD) and Boise, ID (BOI) include United Airlines (UA). This well-known option offers 91 flights on the route each month. If you can't find the right flight for you there, check out the airfares with Alaska Airlines (AS). This airline is a fantastic alternative and offers 30 flights between Chicago and Sun Valley monthly.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.