$216 Flights from Rapid City Regional (RAP) to Seattle / Tacoma International (SEA)

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Flight deals from Rapid City Regional to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best round-trip flight from Rapid City Regional to Seattle / Tacoma International? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Rapid City Regional to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Rapid City Regional to Seattle / Tacoma International flights are currently cheapest in June.

Rapid City Regional to Seattle / Tacoma International: Alternative routes

Compare routes from Rapid City Regional to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Rapid City to Seattle: Flight information

The things to know before you go.
Cheapest flight found$216
Cheapest month to flyJune

Finding cheap flights from Rapid City Regional to Seattle / Tacoma International: Frequently asked questions

The best price we found for a round-trip flight from Rapid City Regional to Seattle / Tacoma International is $279. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Rapid City Regional to Seattle / Tacoma International. But we found flights with one or more stops from $279.
There are no flights flying from Rapid City Regional to Seattle / Tacoma International, as of January 2026.
The cheapest month to fly from Rapid City Regional to Seattle / Tacoma International is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Rapid City Regional Airport to Seattle / Tacoma International Airport on Thursday, February 5, 2026.
No airlines currently offer direct flights between Rapid City Regional Airport and Seattle / Tacoma International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Seattle / Tacoma International.

Flying from Rapid City Regional Airport (RAP) to Seattle-Tacoma International Airport (SEA): what you need to know

  • Seattle is one hour behind Rapid City and follows the UTC-7 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Make sure you're at the airport on time to catch your RAP to SEA flight.

  • You can expect bigger queues during popular months like August. Arriving up to four hours ahead of international flights and two hours for a domestic departure is a good idea.

  • Consider adding a stopover when booking your ticket from Rapid City Regional Airport to Seattle-Tacoma International Airport. Just uncheck 'Direct flights only' to break up your journey, or visit a new city along the way. Check out these options between RAP and SEA:

    • Denver International Airport

    • Minneapolis-St. Paul International Airport

    • Harry Reid Airport (formerly McCarran Airport)

How to find the cheapest flights from Rapid City Regional Airport (RAP) to Seattle-Tacoma International Airport (SEA)

  • At the moment, $216 is the lowest price we've found for a one-way Rapid City Regional Airport to Seattle-Tacoma International Airport flight. The best price for a return plane ticket is $279. Bear in mind that fares may change due to availability when booking.

  • Don't leave everything to the last minute. You're more likely to get cheap tickets from RAP to SEA if you book in advance. Airlines often have some great early bird discounts.

  • The 'Whole month' search function shows you the cheapest flights from Rapid City Regional Airport to Seattle-Tacoma International Airport throughout the entire month. It's a great way to find a bargain if your travel plans are flexible.

  • There's no need to check back in every day to see if fares have dropped when you set up a Price Alert. We'll notify you the moment there's a change in price on cheap flights from RAP to SEA.

  • Pick your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to get the best deals on flights from Rapid City Regional Airport to Seattle-Tacoma International Airport.

Handy information about Rapid City Regional Airport (RAP)

  • You'll find RAP at 4550 Terminal Road, Suite 102.

  • When it comes to the on-time performance of Rapid City Regional Airport, 77.55% of flights stick to their scheduled arrival time.

  • Rapid City Regional Airport is about 11 miles from central Rapid City. If you're catching a cab, ride-sharing or driving from the center, it'll take you 20 minutes or so to arrive, depending on the traffic.

  • Need a hotel to stay in before your flight from Rapid City Regional Airport to Seattle-Tacoma International Airport? Consider La Quinta Inn & Suites by Wyndham Rapid City. Enjoy a good night's sleep here before making your way to RAP.

Arriving at Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • Seattle-Tacoma International Airport to the center of Seattle has a drive time of about 20 minutes. It's approximately 14 miles away.

  • If you're taking public transport, expect a journey time of around 55 minutes.

When to fly to Seattle-Tacoma International Airport (SEA)

  • It's time to work out your trip dates for your flight from Rapid City Regional Airport to Seattle-Tacoma International Airport. July is the busiest month to head to Seattle. If you prefer a more low-key vibe, go in May.

  • Book your flight from Rapid City Regional Airport to Seattle-Tacoma International Airport for August if you want to visit Seattle during its warmest month. You can expect temperatures of between 54ºF and 82ºF.

  • February has average temperatures of between 30ºF and 52ºF. Search for cheap tickets from RAP to SEA around that time if you like cooler conditions.

Explore more of United States

  • Portland is just one of the many cities in United States waiting to be explored after you've seen Seattle. Around 150 miles away to the south, its best attractions include Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 230 miles east of Seattle, Spokane is another favorite stop in United States. Experience major highlights starting with Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.