$124 Cheap Delta flights Columbus (CMH) to Seattle (SEA)

Scoring cheap one-way Delta Air Lines flights from CMH to SEA from $124 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Alternatively, check out our affordable round-trip fares from $246 for your next break.**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 one-way or return flights to Seattle in January or February. You could find an affordable fare with Delta Air Lines during these off-peak times.

Look for cheap Delta Air Lines flights from John Glenn Columbus Intl. Airport (CMH) to Seattle - Tacoma Intl. Airport (SEA) one to three months ahead of 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. Regardless of fare type and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive day 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.

Click on the “Nonstop” filter when looking for direct Delta Air Lines flights from CMH to SEA. It’s also an easy way to compare other carriers offering the same nonstop route.

To find the earliest departures from CMH to SEA with Delta Air Lines, filter your results by “Morning” and “Early Morning.” Choosing an early flight usually 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.

Seattle - Tacoma Intl. Airport (SEA) is the main Seattle hub for Delta Air Lines flights from John Glenn Columbus Intl. Airport (CMH).

Delta Air Lines makes flying from CMH to SEA more comfortable with a rewarding loyalty program and an excellent in-flight experience. You even have the chance to collect points with Delta SkyMiles. Be sure to sign up to our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s generally possible to cancel or reschedule your flight, although additional fees may apply if you booked more than 24 hours ago. Prefer to keep your options open? Make use of Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t charge you extra if you have to alter your plans. To modify your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for further information.