A large rock formation with a tunnel entrance.

Cheap Flights to Keystone

View AU$372 flight on Sat, 19 Sept 2026Opens in a new window

Popular airlines to Keystone

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Tickets to Keystone

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
American Airlines
Delta
Jetstar
Qatar Airways

Frequently asked questions

What is the name of Keystone's airport?
Rapid City Regional Airport (RAP) is the only airport serving Keystone.
How far is RAP from central Keystone?
The journey from RAP to downtown Keystone is reasonably long. You'll need to travel 32 kilometres before you can drop your bags at your city hotel.
What airport is best to fly into Keystone?
Located 32 kilometres from the downtown area, RAP will likely be your first stop in Keystone.
How many airlines fly to Keystone?
With 4 airlines flying to Keystone from at least 6 airports around the globe, your ideal flight is only a few clicks away.
Which airlines fly to Keystone?
The majority of flights to Keystone are offered by United Airlines. The most popular route departs from Denver, and United Airlines flies this route the most frequently.
How many nonstop flights are there to Keystone?
With 90 nonstop flights operating each week, you'll be touching down in Keystone before you can ask, "Are we there yet?"
Where are the most popular flights to Keystone departing from?
Travellers often jet off from Denver, Minneapolis - St. Paul and Dallas airports when flying to Keystone.
How long is the flight to Keystone Airport?
If it's Denver you're leaving behind, you'll be midair for around 1 hour and 18 minutes before you touchdown in Keystone. Terminal to terminal from Minneapolis - St. Paul generally takes 1 hour and 55 minutes and from Dallas, the average flight time is 2 hours and 27 minutes.
How to book the cheapest flight to Keystone?
We've all come across those lucky jet-setters who somehow pick up incredibly cheap fares wherever they go. Want to know how to do it for your Keystone holiday? Don't leave it until the last moment to secure your flight. Also, shop around and compare your options. If your destination has a few airports, you may be able to pick up a better price by flying into one that's further away. Last but not least, another simple way to save a few dollars is be ready to book at a moment's notice. If you see a terrific deal, don't think twice — grab it while the opportunity's there.
Do you have any tips for my flight to Keystone?
Wherever you're jetting in from, flying can be a pleasurable experience if you prepare well enough. We've compiled a list of handy tips and tricks that will help get your Keystone holiday started on the right foot. What to pack in your hand luggage:
  • Travelling on a plane can be a comfortable experience if you take the right gear. Firstly, you'll want a few basic toiletry items, such as a toothbrush and hairbrush, a fresh set of clothes and a good novel. Next, find room in your bag for your phone, tablet and chargers, any vital medications and perhaps a blow-up neck pillow too. Last, but definitely not least, be sure to take your passport, travel papers and your bank cards.
Do not pack the following items in your hand luggage:
  • While the list of prohibited items can differ between airlines, the general rule of thumb is nothing flammable, sharp or explosive. This includes tools, metal cutlery, fuels and bleaching agents. Sporting equipment like ice skates, and items that could harm passengers, such as pepper spray and firearms, won't be allowed on board either.
What to wear on a flight:
  • Choose comfort over style. Prepare for temperature changes by layering up, and pick flat, slightly roomy shoes like sneakers.
  • Deep vein thrombosis (DVT), a blood clotting condition caused by prolonged periods of inactivity, can be a risk on long-haul flights. Walk around the cabin and give your legs a stretch or do some simple exercises in your seat to promote better circulation.
How to get through airport security fast when flying to Keystone?
As savvy travellers know, the secret is to be well organised before you get to the airport security gate. That way, you'll be hopping onto that plane to Keystone before you know it. Follow these helpful tips and get your trip off to a flying start:
  • Security personnel first need to verify that you have a valid passport and matching boarding pass before anything else. Have them ready to show.
  • After that, both you and your hand luggage will be X-rayed. To make the process quick and painless, take off anything that might trigger the alarms. Personal belongings like your coat, belt and earphones will be required to go through the machine.
  • For just a few minutes, you'll need to unplug from technology. Your phone, laptop and any other electronic devices also need to be sent through the scanner.
  • Remove gels and liquids from your carry-on bag. They often need to be sent through the X-ray scanner separately. Each product should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit in a single quart-size (one litre), clear zip-close bag.
  • The right choice of footwear can save you several valuable minutes. Boots and bulky shoes are often required to be removed and separately scanned. Slip-on sneakers are usually not.
  • Airlines will not allow any pocket knives or other sharp items in your carry-on baggage. If you need to bring these kinds of items, pack them in your checked baggage.

Book with confidence

Keystone Flights

Have the time of your life in Keystone

Flying to Keystone is now easier than ever when you use Expedia to book your trip. We’ve got an extensive catalogue of Keystone flight deals, giving you the greatest number of options to choose from. Whether you prefer to fly on weekdays or weekends, in the morning or at night, a quick search on Expedia.com.au will help you find cheap tickets to Keystone in seconds. We even make it simple for you to stick with a certain airline if you’re trying to rack up frequent flyer points.

Tips for flying and packing light

If it’s been a while since you’ve travelled, you might be due for a refresher when it comes to flying. That’s where our helpful blog, Out There Starts Here, comes in. Wondering whether to pack for fine dining or more casual eats? Or whether you really need to bring a jacket? Written by seasoned travel experts, the articles on our blog provide you with the latest details about certain destinations, so you know just what to expect. Check out some of our recent articles for the smartest ways to see the sights.

Fly for less when you bundle airfare and accommodation

Our already low airfares are even more affordable when you bundle your flights with a stay at one of the hotels in Keystone. By booking all of your travel plans with us, you’ll save time and money, and enjoy the convenience of having all of your arrangements in one place.

Get the power of planning in the palm of your hand

Booking your trip to Keystone, South Dakota has never been easier than when you use our mobile app to plan your dream getaway. The Expedia App is available on both Android and iOS, allowing you to reserve flights and hotels at any time of day, no matter what kind of phone you use. You’ll also get exclusive offers, receive flight updates, and can earn extra points. Wherever you are, the Expedia App helps you get where you want to be.

Join the Expedia Rewards Program

If you enjoy the finer things in life, sign up for our rewards program to receive exclusive benefits when you book with us. Expedia Rewards opens the door to member-only deals, +VIP Access hotel benefits, and earning Expedia Rewards points, that you can redeem your way. You’ll also get access to Unreal Deals that could save you the price of a plane ticket to Keystone when bundled with your accommodation.

What are you waiting for?

Expedia.com.au helps you find cheap flights to Keystone AU$543. So why wait another second to begin planning your trip? Start your search right now, and you could be boarding the next Keystone-bound flight. Bon voyage!

Keystone Flights

Travel information

Destination airport
Rapid City Regional
Destination airport IATA code
RAP
Destination city name
Rapid City
Roundtrip price
AU$542

Trending flights to Keystone

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

United

Explore a world of travel with Expedia

*Available to Expedia members.