Cheap flights from Sion to O'Hare Intl. (SIR to ORD)

Discover our best flights from Sion SIR to Chicago ORD. 

With 3 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

Find our best return flights from Sion SIR to Chicago ORD at the right price  

Airfares to Chicago ORD from Sion SIR currently cost between $4,490 and $5,923. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

Book one-way flights from Sion SIR to Chicago ORD 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Sion SIR to Chicago ORD on Travelocity starting at . Prices and availability subject to change. Additional terms may apply. 

Get to Chicago ORD from Sion SIR quicker with direct flights. 

Get to Chicago faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to ORD from SIR to take around hour(s) min(s).  

Find our cheapest airfares for flights from Sion SIR to Chicago ORD

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to ORD from SIR. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

Get our best airfare deals for your flight from Sion SIR to Chicago ORD today 

If you’re flexible about when you travel, August is usually the cheapest month to fly from Sion SIR to Chicago ORD. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

Book flexible airline tickets for flights to Chicago ORD from Sion SIR 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to ORD from SIR have this option.  

Travel with confidence when you book flights to Chicago ORD from Sion SIR with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving.