CA $188 Cheap Flight to Boulder County

View CA $188 flight on Tue, May 26, 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to Boulder County

  • Frontier Airlines

  • American Airlines

  • Delta

  • United

  • Alaska Airlines

  • Southwest Airlines

  • JetBlue Airways

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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 $188 for one-way flights and CA $338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, May 5 - Wed, May 6
YVR
Vancouver
DEN
Denver
CA $338 Roundtrip, found 3 hours ago
CA $338
Roundtrip
found 3 hours ago
Select United flight, departing Tue, May 5 from Vancouver to Denver, returning Wed, May 6, priced at CA $338 found 3 hours ago
Delta
Sat, May 30 - Wed, Jun 3
YYC
Calgary
DEN
Denver
CA $347 Roundtrip, found 9 hours ago
CA $347
Roundtrip
found 9 hours ago
Select Delta flight, departing Sat, May 30 from Calgary to Denver, returning Wed, Jun 3, priced at CA $347 found 9 hours ago
Air Canada
Thu, Jun 11 - Sun, Jun 14
YYC
Calgary
DEN
Denver
CA $349 Roundtrip, just found
CA $349
Roundtrip
just found
Select Air Canada flight, departing Thu, Jun 11 from Calgary to Denver, returning Sun, Jun 14, priced at CA $349 just found
WestJet
Sat, Jun 20 - Wed, Jun 24
YYC
Calgary
DEN
Denver
CA $349 Roundtrip, found 6 hours ago
CA $349
Roundtrip
found 6 hours ago
Select WestJet flight, departing Sat, Jun 20 from Calgary to Denver, returning Wed, Jun 24, priced at CA $349 found 6 hours ago
Delta
Tue, May 19 - Thu, May 28
YYC
Calgary
DEN
Denver
CA $352 Roundtrip, found 23 hours ago
CA $352
Roundtrip
found 23 hours ago
Select Delta flight, departing Tue, May 19 from Calgary to Denver, returning Thu, May 28, priced at CA $352 found 23 hours ago
Delta
Tue, May 19 - Mon, Jun 1
YYC
Calgary
DEN
Denver
CA $355 Roundtrip, found 23 hours ago
CA $355
Roundtrip
found 23 hours ago
Select Delta flight, departing Tue, May 19 from Calgary to Denver, returning Mon, Jun 1, priced at CA $355 found 23 hours ago
United
Tue, Jun 2 - Sun, Jun 14
YYC
Calgary
DEN
Denver
CA $360 Roundtrip, found 2 hours ago
CA $360
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Jun 2 from Calgary to Denver, returning Sun, Jun 14, priced at CA $360 found 2 hours ago
WestJet
Sat, Jun 20 - Tue, Jun 23
YYC
Calgary
DEN
Denver
CA $362 Roundtrip, found 2 days ago
CA $362
Roundtrip
found 2 days ago
Select WestJet flight, departing Sat, Jun 20 from Calgary to Denver, returning Tue, Jun 23, priced at CA $362 found 2 days ago
United
Tue, Jun 9 - Fri, Jun 26
YYC
Calgary
DEN
Denver
CA $368 Roundtrip, just found
CA $368
Roundtrip
just found
Select United flight, departing Tue, Jun 9 from Calgary to Denver, returning Fri, Jun 26, priced at CA $368 just found
American Airlines
Wed, May 27 - Tue, Jun 9
YYZ
Toronto
DEN
Denver
CA $564 Roundtrip, found 1 hour ago
CA $564
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, May 27 from Toronto to Denver, returning Tue, Jun 9, priced at CA $564 found 1 hour ago

Airports in Boulder County

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Flights from CA $477
DEN
Denver Intl.
Cheapest
Flights from CA $477

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.

United
Tue, May 5 - Wed, May 6
YVR
Vancouver
DEN
Denver
CA $338 Roundtrip, found 3 hours ago
CA $338
Roundtrip
found 3 hours ago
Select United flight, departing Tue, May 5 from Vancouver to Denver, returning Wed, May 6, priced at CA $338 found 3 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 $338 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 $338 and CA $564. If you were flying one way from Calgary (YYC), you could have purchased a great deal from only CA $188.
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 $338 to CA $564.
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
United, Air Canada, Delta, WestJet, Alaska Airlines, American Airlines
Roundtrip price
from CA $338
Boulder County Flights Information

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