✈️ Flight Guide: Portland (PDX) → Denver (DEN)

Key events that influence economy fares near Denver International Airport (DEN) include the Great American Beer Festival (October), Denver Film Festival (November), and outdoor events such as summer concerts and sports seasons (June–September). National events in top destinations—New Year’s celebrations in New York, March Madness in select cities, and summer conventions in Los Angeles—also raise demand and fares. Book early around major festivals and use alternate dates to secure cheaper economy flights.

The best time to fly from Denver International Airport (DEN) for the cheapest economy fares is during shoulder seasons—late April to mid-June and September to mid-November—when demand is lower. Midweek flights (Tuesday–Thursday) and off-peak hours (early morning, late evening) generally offer lower prices. For holiday travel, book several months in advance; for last-minute deals, monitor flash sales and be flexible with dates and airports to capture discounted economy fares.

Nonstop flights from Denver International Airport (DEN) offer convenience and lower risk of missed connections but are often pricier in economy class. Connecting flights can save money—especially on long-haul routes—but increase travel time and risk of delays. If booking a connecting itinerary for a cheaper economy fare, allow at least 90–120 minutes for domestic connections and consider verified interline tickets to protect connections. Use a mixture of direct and connecting searches to identify the best balance of price and schedule.

Frontier and Spirit often offer the lowest base economy fares from Denver International Airport (DEN) but charge extra for carry-ons and seat assignments; Southwest includes two checked bags and is a strong value for domestic travelers. United and American provide broader route networks and frequent-flyer benefits that may offset higher base economy prices. Compare total trip cost—fares plus baggage and seat fees—when selecting the airline. Use price-comparison tools and loyalty programs to maximize savings on economy travel from DEN.

In winter, budget for potential delays at Denver International Airport (DEN) and pack warm layers and travel insurance for long connections. Spring and fall shoulder seasons are ideal for finding low economy fares—book mid-week and remain flexible with dates. Summer requires early bookings due to high demand, especially for family travel; consider flying on Tuesdays or Wednesdays and choosing late-night arrivals to save. For all seasons, travel light to avoid baggage fees, use price alerts for fare drops, and compare alternate airports and airlines to secure the cheapest economy fares.

Average nonstop flight times from Denver International Airport (DEN) include Los Angeles (LAX) ~2 hours 30 minutes, Las Vegas (LAS) ~1 hour 45 minutes, Phoenix (PHX) ~2 hours 15 minutes, Chicago O'Hare (ORD) ~2 hours 45 minutes, and New York area airports (JFK/EWR) ~3 hours 45 minutes. Economy schedules offer a mix of early-morning and late-evening flights that are often cheaper; red-eye and off-peak departures can be less expensive but may restrict ground transport options at arrival. For international travel, expect longer multi-leg itineraries with one connection common for budget economy fares—always check layover duration to ensure smooth connections.

To find cheap flights from Denver International Airport (DEN), start with flexible date searches and set price alerts on aggregators like Google Flights and Skyscanner. Compare low-cost carriers (Frontier, Spirit, Southwest) with legacy carriers and consider one-way multi-airline itineraries for the lowest round-trip economy prices. Book mid-week departures and off-peak hours, and check nearby airports such as Colorado Springs for additional savings. Act now: set fare alerts to capture flash sales and book the cheapest economy fares today.