$214 Cheap United flights Columbia (CAE) to Washington (IAD)

Use the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines round-trip flights from $189 from CAE to IAD. Affordable one-way fares from $214 are available too.**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.

Look for affordable United Airlines flights from Columbia Metropolitan Airport (CAE) to Washington Dulles Intl. Airport (IAD) one to three months prior to your day of 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. No matter the fare class and journey, the best day to book a domestic flight is generally Sunday and the most expensive is typically 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.

Taking off from CAE at 9:45AM UTC-5, the earliest United Airlines flight to IAD lands at 11:23AM UTC-5. Flying earlier in the day means you're less likely to experience cancellations.* After something later? The last United Airlines flight from CAE to IAD departs at 2:53PM UTC-5 and touches down at 4:30PM UTC-5.*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.

A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to depart from CAE to IAD with United Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.