$86 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.

Sun, Aug 3 - Sun, Aug 10
ORD
O'Hare Intl.
BOI
Boise
$292 Roundtrip, found 3 days ago
$292
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, Aug 3 from O'Hare Intl. to Boise, returning Sun, Aug 10, priced at $292 found 3 days ago
Sat, Aug 2 - Fri, Aug 8
MDW
Midway Intl.
BOI
Boise
$340 Roundtrip, found 2 days ago
$340
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Aug 2 from Midway Intl. to Boise, returning Fri, Aug 8, priced at $340 found 2 days ago
Fri, Aug 1 - Wed, Aug 20
ORD
O'Hare Intl.
SUN
Friedman Memorial
$611 Roundtrip, found 14 hours ago
$611
Roundtrip
found 14 hours ago
Select Delta flight, departing Fri, Aug 1 from O'Hare Intl. to Friedman Memorial, returning Wed, Aug 20, priced at $611 found 14 hours ago

Airfares from $86 One Way, $154 Round Trip from Chicago to Sun Valley

Prices starting at $154 for return flights and $86 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, Aug 23 - Tue, Aug 26
ORD
Chicago
BOI
Boise
$154 Roundtrip, found 4 days ago
$154
Roundtrip
found 4 days ago
Select United flight, departing Sat, Aug 23 from Chicago to Boise, returning Tue, Aug 26, priced at $154 found 4 days ago
Tue, Nov 4 - Thu, Nov 6
MDW
Chicago
BOI
Boise
$171 Roundtrip, found 6 days ago
$171
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Nov 4 from Chicago to Boise, returning Thu, Nov 6, priced at $171 found 6 days ago
Wed, Aug 27 - Tue, Sep 9
ORD
Chicago
BOI
Boise
$171 Roundtrip, found 6 days ago
$171
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Aug 27 from Chicago to Boise, returning Tue, Sep 9, priced at $171 found 6 days ago
Sun, Aug 24 - Mon, Aug 25
ORD
Chicago
BOI
Boise
$172 Roundtrip, found 5 days ago
$172
Roundtrip
found 5 days ago
Select United flight, departing Sun, Aug 24 from Chicago to Boise, returning Mon, Aug 25, priced at $172 found 5 days ago
Sat, Oct 18 - Sat, Oct 25
ORD
Chicago
BOI
Boise
$197 Roundtrip, just found
$197
Roundtrip
just found
Select American Airlines flight, departing Sat, Oct 18 from Chicago to Boise, returning Sat, Oct 25, priced at $197 just found

Sun Valley economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Avery Hotel
3.5-star property

The Avery Hotel

9.6/10 Exceptional! (233 reviews)

Sep 13 - Sep 19

6 night stay

Chicago (ORD) to Boise (BOI)

Spirit Airlines • Non-stop roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
It’s a clean historical hotel with charm located in the center of downtown.

Reviewed on Jul 20, 2025

Hampton Inn Boise - Airport
2.5-star property

Hampton Inn Boise - Airport

9/10 Wonderful! (1,000 reviews)

Sep 13 - Sep 19

6 night stay

Chicago (ORD) to Boise (BOI)

Spirit Airlines • Non-stop roundtrip • Coach
per person
found 1 day ago
Our room was at a comfortable temperature when we arrived, and quiet heating system. Room and bathroom were spacious, and comfortable bed. Complimentary breakfast was excellent.

Reviewed on Jan 11, 2025

Hotel Ketchum
3.0-star property

Hotel Ketchum

9.2/10 Wonderful! (934 reviews)

Aug 29 - Sep 4

6 night stay

Chicago (CHI) to Sun Valley (SUN)

United • Roundtrip • Coach
Save 100% on your flight
per person
found 15 hours ago
Breakfast was sufficient, better than coffee and donuts, not as elaborate as a full blown buffet. But, had hot food, lots of options, and you don't go away hungry. A great "Hangout" room separate from the hotel (but onsite), that was nicely decorated, and much better than the standard motel-ish decorating style of cafeteria tables and dining chairs. This is where one would want to hang out after skiing for coffee, shuffleboard, and conversation. An inviting massive fireplace in the lobby where you could mingle with other hotel guests and share ski stories.

Reviewed on Jan 30, 2025

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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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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.

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.