$29 Cheap Flights to Keystone , SD

Bundle Your Flight + Hotel & Save!

Add Price Drop Protection and Expedia will pay you back if your flight gets cheaper.*

As a One Key member, you can earn OneKeyCash on top of airline miles.

As a One Key member, you can save up to 30% when you add a hotel to your flight.

Featured airlines

Featured Airlines: American Airlines, United Airlines, Delta, Spirit, JetBlue, Frontier, Air India, Hawaiian Airlines and Qatar Airways

How much is the cheapest flight to Keystone?

Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun Country Airlines
Sun Country Airlines

Find Your Flights to Keystone RAP

Cheap flights to Keystone (RAP)

Get started finding a cheap flight to Keystone on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Keystone.

Roundtrip prices range from $53 - $259, and one-ways to Keystone start as low as $29.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Keystone (RAP)

You have several options for which airline you choose to travel with to Keystone. There are 10 airlines flying into RAP: Sun Country Airlines, United, Delta. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to Keystone (RAP) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to RAP in September and in August for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

Where can I learn more about changing or canceling my flight to Keystone?
For more information about updating your flight to Keystone or canceling it, head over to our Customer Service Portal.
How do I find cheap flights to Keystone that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight you select. When you’re searching for flights to Keystone, you’ll see a “no change fees” filter for you to select.
Can I fly to Keystone now?
Check out our Covid-19 Travel Advisor to find out about current travel advisories for Keystone before you fly in. Everything from quarantine requirements to health authority information is constantly updated here to keep you well informed.
What is the name of Keystone's airport?
Rapid City Regional Airport (RAP) is the only airport in Keystone.
How far is RAP from central Keystone?
Long commutes aren’t a big deal if you plan ahead of time. Downtown Keystone is 20 mi from Rapid City Regional Airport (RAP), so it’s smart to know how to get to the city before you land.
What airport is best to fly into Keystone?
With just one major airport operating in Keystone, it won’t take you long to get your hands on the best flight. You’ll be taking off to Rapid City Regional Airport, which is located around 20 mi from the center of town.
How many airlines fly to Keystone?
With 4 airlines flying into Keystone from 7 airports around the world, your perfect flight is just a few clicks away.
Which airlines fly to Keystone?
United Airlines operates most of the flights to Keystone. Grabbing a United Airlines flight from Denver is the preferred way of getting there.
How many nonstop flights are there to Keystone?
With approximately 76 direct flights every week, you’ll be hitting the runway in Keystone before you have time to say, “Are we there yet?”
Where are the most popular flights to Keystone departing from?
Travelers frequently jet off from Denver, Minneapolis - St. Paul and Dallas airports when flying to Keystone.
How long is the flight to Keystone Airport?
Which city you depart from determines how long you’ll be strapped into your seat. From Denver to Keystone, the average flight time is 1 hour and 19 minutes. From Minneapolis - St. Paul it’s more or less 1 hour and 46 minutes, and from Dallas it’s 2 hours and 19 minutes.
How to book the cheapest flight to Keystone?
We’ve all come across those jet-setters who somehow manage to grab super cheap fares whenever they fly. Would you like to know how to do it for your Keystone vacation? Don’t wait until the last moment to secure your flight. Also, shop around and compare your options. If your destination has more than one airport, you may be able to nab an excellent price by flying into a less busy terminal. Finally, be ready to book quickly if you find an irresistible price. It might not stick around for too long. With a bit of knowledge and a little luck, the perfect fare will be yours.
How to survive the flight to Keystone?
If you’re poorly prepared, airports and flying can be a real challenge. But there’s no need to worry. Follow these handy tips for a hassle-free start to your vacation in Keystone.What to pack in your hand luggage:

  • First things first, put in your passport, important documents, credit cards and vital medications. Next, you’ll need some in-flight entertainment to help pass the time. A thrilling book and a phone crammed with your favorite movies are good options. If you hope to take a short nap, a comfy neck pillow and some earplugs will also be useful. Finally, squeeze in a toothbrush and some cleansing wipes to ensure you arrive at your destination looking and feeling fresh.

Do not pack the following items in your hand luggage:

  • While the list of prohibited items differs between air carriers, the general rule of thumb is avoid carrying anything flammable, sharp or explosive. This includes things like box cutters, razor blades, aerosol cans and bleaching agents. Sports equipment like ski poles, and items that could injure passengers, such as firearms and ammunition, won’t be allowed on board either.

What to wear on a flight:

  • Your aim here is to feel as comfortable as possible. Layer yourself up in natural-fiber clothing and bring a cardigan in case it gets chilly in the cabin. Go for a pair of flat, well-fitting shoes as your feet may swell during the journey. Leave the stilettos and chunky boots in your checked luggage.
  • It’s likely you’ve heard about DVT (deep vein thrombosis), a blood clotting condition caused by long periods of inactivity. There are plenty of ways to lessen your risk. Wear a good-quality pair of compression tights or socks, stay hydrated and move your legs and feet. Walk around the cabin when possible or try out some exercises in your seat.

How to get through airport security fast when flying to Keystone?
As savvy travelers know, the secret is to be prepared before you arrive at airport security. That way, you’ll be hopping onto that plane to Keystone in no time at all. Follow these tips and get your vacation off to a terrific start:

  • Airport security personnel first need to verify that you have a valid ID and matching travel documents before anything else. Have them in your hand, ready for inspection.
  • The X-ray machine is up next. Empty your pockets and remove anything that is likely to set off the alarm. This includes items like earphones or headphones, as well as your coat or jacket. They’ll need to be placed on the conveyor belt for screening.
  • For just a few moments, you’ll need to unplug from technology. Your tablet, phone and any other electronics will need to be sent through the scanner.
  • Any gels or liquids, such as hair oil or hand cream, that you want to take on board need to be in containers no greater than 3.4 ounces (100 milliliters). They must also all fit inside a quart-size (one liter), clear zip-close bag.
  • There’s a chance you’ll be asked to take your shoes off for scanning, so wearing slip-on shoes is always a smart idea.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp or pointed objects, put them in your checked suitcase. They won’t be allowed on board.

Flights to Keystone information
Destination airport
Rapid City Regional
Destination airport IATA code
Destination city name
Rapid City
Roundtrip price

Trending flights to Keystone

Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun Country Airlines

*Available for a fee on select flights. Terms apply.