$105 Cheap United flights McAllen (MFE) to Chicago (ORD)

You’ll discover affordable return United Airlines flights from $217 from MFE to ORD by filtering your results from “Price (lowest to highest)” on Expedia. Or search for options from $105 for a one-way trip.**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.

United Airlines flights to Chicago are often cheaper in the off-peak months of January and February. Whether you’re in search of a return or one-way ticket, you could score a better deal then.

Look for cheap United Airlines flights from Miller Intl. Airport (MFE) to O’Hare Intl. Airport (ORD) one to three months before your departure date. 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 journey, the best day 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 the “Nonstop” filter when searching for direct United Airlines flights from MFE to ORD. It’s also a great way to compare other carriers servicing the same nonstop trip.

Sort your results by “Early Morning” and “Morning” to see the earliest departures from MFE to ORD. Taking off early means you’re 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.

O’Hare Intl. Airport (ORD) is the primary Chicago gateway for United Airlines flights from Miller Intl. Airport (MFE).

Fly from MFE to ORD with United Airlines and look forward to a range of benefits starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making your booking, but your airline may add a charge after that time. For more information about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to change your itinerary without additional costs, check the “Changes included” or “No cancel fee” filter when planning your next adventure.