Cheap Flights to Keystone , SD from CA $306

View CA $306 flight on Wed, May 13, 2026Opens in a new window

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Popular airlines to Keystone

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How much is the cheapest flight to Keystone?

Prices were available within the past 7 days and start at CA $306 for one-way flights and CA $435 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Oct 9 - Mon, Oct 12
DEN
Denver
RAP
Rapid City
CA $435 Roundtrip, found 7 hours ago
CA $435
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Oct 9 from Denver to Rapid City, returning Mon, Oct 12, priced at CA $435 found 7 hours ago
Delta
Tue, May 12 - Sat, May 23
BWI
Baltimore
RAP
Rapid City
CA $571 Roundtrip, found 3 days ago
CA $571
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, May 12 from Baltimore to Rapid City, returning Sat, May 23, priced at CA $571 found 3 days ago
American Airlines
Thu, Sep 10 - Wed, Sep 16
SYR
Syracuse
RAP
Rapid City
CA $650 Roundtrip, found 10 hours ago
CA $650
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Sep 10 from Syracuse to Rapid City, returning Wed, Sep 16, priced at CA $650 found 10 hours ago
Air Canada
Fri, Jun 19 - Wed, Jun 24
YTZ
Toronto
RAP
Rapid City
CA $917 Roundtrip, found 6 days ago
CA $917
Roundtrip
found 6 days ago
Select Air Canada flight, departing Fri, Jun 19 from Toronto to Rapid City, returning Wed, Jun 24, priced at CA $917 found 6 days ago
WestJet
Sun, May 31 - Fri, Jun 5
YXX
Abbotsford
RAP
Rapid City
CA $1,544 Roundtrip, found 2 days ago
CA $1,544
Roundtrip
found 2 days ago
Select WestJet flight, departing Sun, May 31 from Abbotsford to Rapid City, returning Fri, Jun 5, priced at CA $1,544 found 2 days ago

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 vacation? 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 farther 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 vacation 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 organized 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

Expedia.ca gives you the best tools to secure great deals on flights to Keystone. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Keystone. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Keystone.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Keystone flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Keystone.

Looking to save even more? Get additional savings by bundling your Keystone flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Keystone trip!

Travel information

Destination airport
Rapid City Regional
Destination airport IATA code
RAP
Destination city name
Rapid City
Roundtrip price
CA $434

Trending flights to Keystone

Prices were available within the past 7 days and start at CA $306 for one-way flights and CA $435 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 21 - Wed, Nov 11
YHZ
Halifax
RAP
Rapid City
CA $606 Roundtrip, found 3 days ago
CA $606
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 21 from Halifax to Rapid City, returning Wed, Nov 11, priced at CA $606 found 3 days ago

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