$209 Cheap Delta flights Chicago (ORD) to West Yellowstone (WYS)

Scoring cheap one-way Delta Air Lines flights from ORD to WYS from $209 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly return fares from $244 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for round-trip or one-way flights to West Yellowstone in November or March. You could find a cheap fare with Delta Air Lines during these quieter months.

Look for affordable Delta Air Lines flights from O’Hare Intl. Airport (ORD) to Yellowstone Airport (WYS) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Use our “Nonstop” filter when browsing for direct Delta Air Lines flights from ORD to WYS. It’s also a great way to compare other airlines servicing the same nonstop trip.

Filter your results by “Morning” and “Early Morning” to browse the earliest flights from ORD to WYS. Heading off early means you’re 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Yellowstone Airport (WYS) is the main West Yellowstone hub for Delta Air Lines flights from O’Hare Intl. Airport (ORD).

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a top choice for many passengers heading from ORD to WYS. What’s more, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your ticket type, a fee will generally apply if you change or cancel your flight more than 24 hours after it’s been confirmed. To find flexible fares, select our “Changes included” or “No cancel fee” filter while searching for flights. For more details on canceling or modifying your reservation, head to “Trips,” select your flight and click on “Manage Booking.”