$206 Cheap Delta flights Rapid City (RAP) to Seattle (SEA)

You’ll find budget-friendly return Delta Air Lines flights from $351 from RAP to SEA by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $206 for a one-way journey.**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.

Search for one-way or round-trip flights to Seattle in January or February. You could find lower fares with Delta Air Lines during these quieter months.

Look for affordable Delta Air Lines flights from Rapid City Regional Airport (RAP) 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. No matter the fare class and journey, the ideal day to book a domestic flight is usually 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.

Enter your dates, hit search and check the “Nonstop” filter on Expedia to find any direct flights from RAP to SEA with Delta Air Lines or another airline.

Search Delta Air Lines’s earliest flights from RAP to SEA by using the “Morning” and “Early Morning” filters. Not only will you get to where you’re going sooner, early departures are also 20% less likely to be canceled.**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 primary Seattle gateway for Delta Air Lines flights from Rapid City Regional Airport (RAP).

With an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a top choice for many travelers flying from RAP to SEA. Plus, 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 go toward future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee will generally apply if you modify or cancel your flight more than 24 hours after it’s been confirmed. To find plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when you search for flights. For more details on changing or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”