Cheap Flights to North Keystone , CO from CA $148

View CA $148 flight on Wed, Jun 3, 2026Opens in a new window

Popular airlines

  • Frontier Airlines

  • American Airlines

  • Alaska Airlines

  • United

  • Delta

  • Southwest Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to North Keystone?

Prices were available within the past 7 days and start at CA $148 for one-way flights and CA $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 12 - Wed, May 20
SEA
Seattle
DEN
Denver
CA $244 Roundtrip, found 4 days ago
CA $244
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Tue, May 12 from Seattle to Denver, returning Wed, May 20, priced at CA $244 found 4 days ago
Delta
Sat, May 23 - Wed, May 27
SEA
Seattle
DEN
Denver
CA $296 Roundtrip, found 14 hours ago
CA $296
Roundtrip
found 14 hours ago
Select Delta flight, departing Sat, May 23 from Seattle to Denver, returning Wed, May 27, priced at CA $296 found 14 hours ago
American Airlines
Sun, May 24 - Tue, Jun 2
SEA
Seattle
DEN
Denver
CA $412 Roundtrip, found 2 days ago
CA $412
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, May 24 from Seattle to Denver, returning Tue, Jun 2, priced at CA $412 found 2 days ago
WestJet
Fri, May 22 - Fri, Jun 5
YYZ
Toronto
DEN
Denver
CA $417 Roundtrip, found 15 hours ago
CA $417
Roundtrip
found 15 hours ago
Select WestJet flight, departing Fri, May 22 from Toronto to Denver, returning Fri, Jun 5, priced at CA $417 found 15 hours ago
United
Sat, May 23 - Tue, May 26
SEA
Seattle
DEN
Denver
CA $419 Roundtrip, found 14 hours ago
CA $419
Roundtrip
found 14 hours ago
Select United flight, departing Sat, May 23 from Seattle to Denver, returning Tue, May 26, priced at CA $419 found 14 hours ago

Frequently asked questions

How do I find cheap flights to North Keystone that have flexible change policies?
It's as easy as counting 1-2-3 with Expedia. Step 1: Enter your travel dates and destination and click on the "Search" button. Next, check "No change fee" directly underneath the "Flexible change policies" filter to the left of your screen. Step 3. Score your flexible and cheap flight to North Keystone.
Which airlines fly to North Keystone?
Book a seat with one of these airlines and North Keystone will be yours to discover:

  • United Airlines - 13,845 flights to or near North Keystone each month, including 13,845 flights to Denver Intl. Airport (DEN) per month.
  • Southwest Airlines - 6,699 flights to or near North Keystone each month, including 6,699 flights to Denver Intl. Airport (DEN) per month.
  • Frontier Airlines - 1,547 flights to or near North Keystone each month, including 1,547 flights to Denver Intl. Airport (DEN) per month.

How can I find cheap tickets to North Keystone?
To pick up an awesome deal to North Keystone, book well in advance. Also think about using Expedia's handy "flexible dates" feature above your search results. This will compare the cheapest prices for similar time frames. In the last seven days, CA $244 was the lowest price for a flight to North Keystone.
How much is a flight to North Keystone?
There were loads of budget-friendly fares up for grabs in the last seven days, with the cost of a return ticket to North Keystone varying between CA $244 and CA $419. Many lucky travellers nabbed one-way flights from Seattle (SEA) for just CA $148.
What are the most popular airports to fly into in North Keystone?
North Keystone's primary airport is Denver Intl. Airport (DEN). Get your awesome adventure underway by booking a ticket on one of the 24,420 monthly flights to this destination.
When is the cheapest time to fly to North Keystone?
Jet off on a Tuesday to raise your chances of landing the cheapest fare to North Keystone. Mondays are usually the second most affordable day to take off. Saturday is generally the most expensive day to fly anywhere.
How much is a plane ticket to North Keystone?
In the last seven days, plane fares to North Keystone cost between CA $244 and CA $419. Prices tend to rise over time, so land yourself a terrific deal today.
What months are the cheapest to book a flight to North Keystone?
February is the best month to lock in a seat for your North Keystone break. Tickets are at their most expensive during the busy month of December, so keep clear of this time if possible.

Book with confidence

Expedia.ca gives you the best tools to secure great deals on flights to North 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 North Keystone. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to North 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 North 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 North Keystone.

Looking to save even more? Get additional savings by bundling your North 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 North Keystone trip!

Travel information

Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Roundtrip price
CA $309

Trending flights to North Keystone

Prices were available within the past 7 days and start at CA $148 for one-way flights and CA $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Fri, May 22 - Fri, Jun 5
YYZ
Toronto
DEN
Denver
CA $417 Roundtrip, found 15 hours ago
CA $417
Roundtrip
found 15 hours ago
Select WestJet flight, departing Fri, May 22 from Toronto to Denver, returning Fri, Jun 5, priced at CA $417 found 15 hours ago

Explore a world of travel with Expedia

*Available to Expedia members.