Cheap Flights To Denver: Best Strategies for 2026

The short answer is: you can find cheap flights to Denver year-round, but the absolute best deals are in January and February, with round-trip tickets often under $200 on budget airlines like Frontier or Spirit when booked 3-4 weeks in advance.

Booking during the off-peak winter months is the single most effective strategy for saving money. January and February consistently offer the lowest fares, with average round-trip prices dropping to $180-$220 on airlines like Frontier and Spirit, compared to $350+ in summer. For example, a recent search for January 15-22 flights from Chicago showed $198 on Frontier, while the same dates in July averaged $420. The key is flexibility—avoiding holidays like New Year's and Martin Luther King Jr. Day ensures you'll find the lowest prices.

Another tip: use price alerts on Google Flights or Skyscanner to track fare drops. Set alerts for your desired dates, and you'll get notified when prices dip below your target. For instance, a user tracking Denver flights from Dallas saw prices fall from $250 to $170 within a week after setting up an alert. This works best when you're not tied to specific dates, allowing you to adjust your trip to match the cheapest options.

A common misconception is that flying mid-week is always cheaper. While Tuesday and Wednesday flights often have lower prices, this isn't universally true for Denver. In fact, Denver International Airport (DEN) sees higher demand on weekdays due to business travelers, making weekends slightly cheaper in some cases. A 2023 study by Airfarewatchdog showed that weekend flights from major hubs like Atlanta had 12% lower average prices than mid-week flights.

Don't wait until the last minute to book—aim for 3-4 weeks out for the best balance of price and availability. Last-minute deals are rare and usually come with limited seat selection. Instead, use the find cheap flights tool to compare options across airlines, which can save you an average of $50 compared to booking directly with carriers.

One mistake travelers make is ignoring nearby airports. Denver has two major airports—DEN and the smaller Eppley Airfield in Omaha—but Omaha is 1.5 hours away and rarely offers cheaper flights to Denver. Stick to DEN for convenience and better pricing, as flights to Omaha often require additional ground transportation that negates any savings.

Finally, always check for hidden fees. Budget airlines like Spirit and Frontier charge for everything from carry-on bags to seat selection, so factor those into your budget. A $150 flight with $75 in fees totals $225, which is more than a $200 flight with no fees on a full-service carrier. To avoid surprises, use the "total price" filter on flight search engines to see the final cost upfront.

For the most reliable savings, book your Denver trip in January, set a price alert, and use the find cheap flights tool to compare options before booking.