$123 Cheap Flights from Chicago (ORD) to Sun Valley (SUN)

View $123 flight on Wed, Jan 7, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Sun Valley, ID (SUN-Friedman Memorial)

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Cheap Flights from Chicago to Sun Valley (ORD-SUN)

Prices were available within the past 7 days and start at $123 for one-way flights and $245 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 21 - Wed, Oct 29
ORD
Chicago
SUN
Sun Valley
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 21 from Chicago to Sun Valley, returning Wed, Oct 29, priced at $245 found 1 day ago
United
Fri, Jan 2 - Fri, Jan 9
ORD
Chicago
SUN
Sun Valley
$249 Roundtrip, found 6 days ago
$249
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jan 2 from Chicago to Sun Valley, returning Fri, Jan 9, priced at $249 found 6 days ago
Delta
Wed, Oct 22 - Wed, Oct 29
ORD
Chicago
SUN
Sun Valley
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 22 from Chicago to Sun Valley, returning Wed, Oct 29, priced at $250 found 1 day ago
Delta
Sun, Aug 31 - Wed, Sep 3
ORD
Chicago
SUN
Sun Valley
$255 Roundtrip, found 14 hours ago
$255
Roundtrip
found 14 hours ago
Select Delta flight, departing Sun, Aug 31 from Chicago to Sun Valley, returning Wed, Sep 3, priced at $255 found 14 hours ago
Delta
Sat, Aug 23 - Wed, Sep 3
ORD
Chicago
SUN
Sun Valley
$256 Roundtrip, found 7 hours ago
$256
Roundtrip
found 7 hours ago
Select Delta flight, departing Sat, Aug 23 from Chicago to Sun Valley, returning Wed, Sep 3, priced at $256 found 7 hours ago
Delta
Mon, Aug 25 - Wed, Sep 3
ORD
Chicago
SUN
Sun Valley
$257 Roundtrip, found 7 hours ago
$257
Roundtrip
found 7 hours ago
Select Delta flight, departing Mon, Aug 25 from Chicago to Sun Valley, returning Wed, Sep 3, priced at $257 found 7 hours ago
United
Sat, Aug 30 - Wed, Sep 3
ORD
Chicago
SUN
Sun Valley
$259 Roundtrip, found 14 hours ago
$259
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Aug 30 from Chicago to Sun Valley, returning Wed, Sep 3, priced at $259 found 14 hours ago
American Airlines
Sun, Jan 25 - Sat, Jan 31
ORD
Chicago
SUN
Sun Valley
$259 Roundtrip, found 3 days ago
$259
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Jan 25 from Chicago to Sun Valley, returning Sat, Jan 31, priced at $259 found 3 days ago
Hawaiian Airlines
Fri, Feb 20 - Fri, Mar 6
ORD
Chicago
SUN
Sun Valley
$371 Roundtrip, found 3 days ago
$371
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Feb 20 from Chicago to Sun Valley, returning Fri, Mar 6, priced at $371 found 3 days ago
Alaska Airlines
Sat, Mar 7 - Sat, Mar 14
ORD
Chicago
SUN
Sun Valley
$466 Roundtrip, found 6 days ago
$466
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Mar 7 from Chicago to Sun Valley, returning Sat, Mar 14, priced at $466 found 6 days ago

Find the cheapest month to fly from Chicago (ORD) to Sun Valley (SUN)

August is typically the cheapest month to fly

From $254 - $988 per traveler.

Graph displaying average flight prices per month

Alternative airports near Sun Valley

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

Select flight to Friedman Memorial SUN. Cheapest and Closest option available. Average driving time to city center is 23 minutes. Flights from $284
SUN
Friedman Memorial
CheapestClosest
Average driving time to city center23 min
Flights from $284
Flights from Chicago (ORD) to Sun Valley (SUN)
Origin airport
O'Hare Intl.
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$244
Distance
1337 mi
Average flight time
4 hours 1 min

Chicago to Sun Valley Flights

The cheapest times to fly from Chicago to Sun Valley

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 Sun Valley are during the month of October. You can find some of the cheapest flights from Chicago to Sun Valley with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Sun Valley

Sunday is one of the best days to book for cheap flights from Chicago to Sun Valley: 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 Sun Valley

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 Sun Valley in 2025. You can also book with separate airlines for your outbound and return journeys, from $123 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 Sun Valley 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 Sun Valley 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 Friedman Memorial Airport (SUN) cost?
Cheap round-trip fares from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN) start from $349. 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 United flight leaving ORD on August 19 2025 and touching down at SUN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from ORD to SUN?
The cheapest flights from ORD to SUN 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 Friedman Memorial Airport (SUN)?
When flying out of O'Hare Intl. Airport (ORD), you can board a nonstop flight to Friedman Memorial Airport (SUN) with United Airlines.
What is the cheapest airline that flies from ORD to SUN?
Currently, the cheapest carrier operating one-way flights from ORD to SUN is United. You can book a seat on this route from $360. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on August 2 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 Friedman Memorial Airport (SUN)?
On average, just 1 nonstop flight departs each day from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN). Want additional options? Use our filter tool to find flights with layovers and squeeze another destination into your itinerary.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN)?
More people fly between ORD and SUN at 9 AM than at any other time of day. Looking for a quieter experience? Try choosing a quieter departure window and there's a chance you'll save on your ticket as well.
What day of the week has the most flights from ORD to SUN?
If you depart on a Sunday, you'll get the greatest range of options for flights from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN).
What is the earliest flight from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN)?
The earliest flight jetting off from O'Hare Intl. Airport (ORD) is at around 9:29AM UTC-6. Board this flight and you'll touch down at Friedman Memorial Airport (SUN) at approximately 12:43PM UTC-7. The total time in the air is 4h 14m.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN)?
Flights from ORD to SUN have an average travel time of 4 hours and 14 minutes. The total distance between these two airports is 1,350 mi.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN)?
Opt for a flight from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour 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 Sun Valley from O'Hare Intl. Airport (ORD)?
Friedman Memorial Airport (SUN) is the only airport in Sun Valley with direct flights from O'Hare Intl. Airport (ORD). Compare your options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN) last-minute?
Waiting until just before your trip to book a flight from ORD to SUN generally means paying more. Although you may find some last-minute offers, there's no guarantee. Keep your travel plans flexible to boost your chances of snagging a bargain.
Is it cheaper to book an ORD to SUN flight and hotel package?
Compared with arranging hotels and flights separately, booking an ORD to SUN flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Just secure your flights and select from our wide range of stays, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Friedman Memorial Airport (SUN)?
In most cases, you can reschedule or cancel your ORD to SUN flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like more information, visit our Customer Service portal.

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