Vuelos de United de Rapid City (RAP) a Seattle (SEA) desde $263

Be sure to go to the Covid-19 Travel Advisor to find out if there are any current travel advice reports or quarantine requirements in effect in Sea-Tac Airport when flying from Rapid City Regional Airport (RAP).

Your ticket should tell you exactly which terminal your United Airlines flight will be leaving from at Rapid City Regional Airport. It might also be able to provide you with arrival details for Sea-Tac Airport. If not, you might like to consult your airline.

If you’re traveling with United Airlines from RAP to Seattle - Tacoma Intl. Airport (SEA), you’ll need to make at least one stop. While waiting for your connection, take the opportunity to grab a quick bite or stretch your legs.

Depending on no delays and good weather, your United Airlines flight from Rapid City Regional Airport (RAP) to Sea-Tac Airport will take approximately 4 hours and 43 minutes. That means you’ve got plenty of time to order your favorite drink, squeeze in a nap and revise your travel itinerary before you hit the runway.

When traveling from RAP to SEA, there are roughly 4 United Airlines daily flights to pick from.

For more info about changing your flight to SEA, please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.