CA $197 Cheap Flight to Boulder County

View CA $197 flight on Sat, May 30, 2026Opens in a new window

Popular airlines to Boulder County

  • Frontier Airlines

  • Alaska Airlines

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

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How much is the cheapest flight to Boulder County?

Prices were available within the past 7 days and start at CA $197 for one-way flights and CA $333 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Sat, May 30 - Wed, Jun 17
YYC
Calgary
DEN
Denver
CA $333 Roundtrip, found 6 hours ago
CA $333
Roundtrip
found 6 hours ago
Select WestJet flight, departing Sat, May 30 from Calgary to Denver, returning Wed, Jun 17, priced at CA $333 found 6 hours ago
WestJet
Mon, Jun 15 - Wed, Jun 24
YYC
Calgary
DEN
Denver
CA $344 Roundtrip, found 6 hours ago
CA $344
Roundtrip
found 6 hours ago
Select WestJet flight, departing Mon, Jun 15 from Calgary to Denver, returning Wed, Jun 24, priced at CA $344 found 6 hours ago
WestJet
Tue, Jun 23 - Wed, Jun 24
YYC
Calgary
DEN
Denver
CA $346 Roundtrip, found 1 day ago
CA $346
Roundtrip
found 1 day ago
Select WestJet flight, departing Tue, Jun 23 from Calgary to Denver, returning Wed, Jun 24, priced at CA $346 found 1 day ago
Delta
Sun, May 24 - Wed, May 27
YYC
Calgary
DEN
Denver
CA $347 Roundtrip, found 4 hours ago
CA $347
Roundtrip
found 4 hours ago
Select Delta flight, departing Sun, May 24 from Calgary to Denver, returning Wed, May 27, priced at CA $347 found 4 hours ago
Delta
Tue, Jun 2 - Thu, Jun 4
YYC
Calgary
DEN
Denver
CA $356 Roundtrip, found 21 hours ago
CA $356
Roundtrip
found 21 hours ago
Select Delta flight, departing Tue, Jun 2 from Calgary to Denver, returning Thu, Jun 4, priced at CA $356 found 21 hours ago
WestJet
Sun, May 31 - Thu, Jun 4
YYC
Calgary
DEN
Denver
CA $358 Roundtrip, found 5 hours ago
CA $358
Roundtrip
found 5 hours ago
Select WestJet flight, departing Sun, May 31 from Calgary to Denver, returning Thu, Jun 4, priced at CA $358 found 5 hours ago
WestJet
Mon, Jun 15 - Tue, Jun 23
YYC
Calgary
DEN
Denver
CA $361 Roundtrip, found 6 hours ago
CA $361
Roundtrip
found 6 hours ago
Select WestJet flight, departing Mon, Jun 15 from Calgary to Denver, returning Tue, Jun 23, priced at CA $361 found 6 hours ago
United
Mon, May 25 - Thu, Jun 4
YYC
Calgary
DEN
Denver
CA $366 Roundtrip, found 22 hours ago
CA $366
Roundtrip
found 22 hours ago
Select United flight, departing Mon, May 25 from Calgary to Denver, returning Thu, Jun 4, priced at CA $366 found 22 hours ago
Air Canada
Tue, Jun 16 - Mon, Jun 22
YYC
Calgary
DEN
Denver
CA $392 Roundtrip, just found
CA $392
Roundtrip
just found
Select Air Canada flight, departing Tue, Jun 16 from Calgary to Denver, returning Mon, Jun 22, priced at CA $392 just found
American Airlines
Mon, Jun 1 - Tue, Jun 9
YYZ
Toronto
DEN
Denver
CA $556 Roundtrip, found 1 hour ago
CA $556
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Mon, Jun 1 from Toronto to Denver, returning Tue, Jun 9, priced at CA $556 found 1 hour ago

Trending flights to Boulder County

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.

WestJet
Sat, May 30 - Wed, Jun 17
YYC
Calgary
DEN
Denver
CA $333 Roundtrip, found 6 hours ago
CA $333
Roundtrip
found 6 hours ago
Select WestJet flight, departing Sat, May 30 from Calgary to Denver, returning Wed, Jun 17, priced at CA $333 found 6 hours ago

Frequently asked questions

How do I find cheap flights to Boulder County that have flexible change policies?
We know that travel arrangements can change in the blink of an eye, so choosing a flexible fare with Expedia is always a wise idea. Just check the "No change fee" box under the "Flexible change policies" filter. Your low-cost, flexible flight to Boulder County is just a few clicks away.
Which airlines fly to Boulder County?
With a great selection of airlines flying into or near Boulder County, you have plenty of choice:

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

How can I find cheap tickets to Boulder County?
In the last seven days, CA $333 was the best price for a flight to Boulder County. For an even better fare, book in advance and be flexible with your dates. Search for your trip to Boulder County, then see prices for similar time frames by clicking on the "flexible dates" link above.
How much is a flight to Boulder County?
The cost of a round-trip ticket to Boulder County in the last seven days varied between CA $333 and CA $556. If you were flying one way from Calgary (YYC), you could have purchased a great deal from only CA $197.
What are the most popular airports to fly into in Boulder County?
Jet into Denver Intl. Airport (DEN) and enjoy everything that Boulder County has to offer. As the region's main entry point, approximately 24,420 flights land here each month.
When is the cheapest time to fly to Boulder County?
Departing on a Tuesday, followed by a Monday, is usually the best way to pick up the cheapest airfare. Stay away from the weekends if possible, because Saturday is typically the costliest day. Spend the funds you saved having a good time in Boulder County instead!
How much is a plane ticket to Boulder County?
In the last seven days, tickets to Boulder County fluctuated from CA $333 to CA $556.
What months are the cheapest to book a flight to Boulder County?
To grab a low-cost flight to Boulder County, book during February when the prices are at their cheapest. When do tickets cost the most? In the United States, it's the festive month of December.

Travel information

Boulder County Flights Information

Airlines serving
WestJet, United, Delta, Air Canada, Alaska Airlines, American Airlines
Roundtrip price
from CA $333
Boulder County Flights Information

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