Naperville, IL to Denver, CO Flights

Cheap plane tickets from Naperville, IL to Denver, CO can start from as little as $94 (€77) when you book in advance. The average flight ticket price for Naperville, IL to Denver, CO is $94 (€77) ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.

The average journey time by plane from Naperville, IL to Denver, CO is 3h 7m to travel the 891 miles (1434 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.

The earliest flight from Naperville, IL to Denver, CO leaves at 12:04 AM. Plan your trip with the Journey Planner from Omio.

The latest flight from Naperville, IL to Denver, CO leaves at 11:58 PM.

Flights from Naperville, IL to Denver, CO generally leave from O'Hare International Airport and arrive in Denver International Airport.O'Hare International Airport is 1 miles (3 km) away from Naperville, IL city centre and Denver International Airport is 11 miles (18 km) from Denver, CO city centre.

The cheapest month for a flight from Naperville, IL to Denver, CO is June.

It's helpful to compare your options as there are 3 ways to travel between Naperville, IL and Denver, CO including taking a train, bus, and flight.

Since neither Naperville, IL nor Denver, CO are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.

There is a time difference of 1 h between Naperville, IL and Denver, CO all year round.

The best events to attend in Denver, CO include:

• Denver Arts Festival, a vibrant celebration of local artists and their work featuring exhibitions, live music, and food
• Great American Beer Festival, the largest beer festival in the U.S. showcasing thousands of craft beers from across the country
• Denver Film Festival, an annual event highlighting independent films and filmmakers with screenings, panels, and special events.

Some of the most interesting sights to explore in Denver, CO are:

• Red Rocks Amphitheatre, a renowned open-air concert venue set amidst stunning natural rock formations
• Denver Art Museum, featuring an extensive collection of Native American art and contemporary works
• Denver Botanic Gardens, offering diverse plant displays and themed gardens
• Union Station, a historic transportation hub with shops, dining, and events
• Denver Museum of Nature & Science, showcasing exhibits on natural history, space, and anthropology.

The best holidays to experience in Denver, CO include:

• Memorial Day, the unofficial start of summer with vibrant outdoor activities and events
• Independence Day, spectacular fireworks and lively celebrations throughout the city
• Labor Day, pleasant weather perfect for enjoying Denver's parks and festivals.

The best things to do in Denver, CO include:

• Coors Field, home to the Colorado Rockies, offering baseball games and tours in a scenic downtown setting
• Larimer Square, a vibrant historic district with shopping, dining, and nightlife
• City Park, a large urban park with trails, lakes, and views of downtown Denver and the mountains
• Denver Zoo, featuring a wide variety of animals and interactive exhibits
• Cherry Creek Shopping Center, a premier retail destination with luxury brands and dining options.

The best season to visit Denver, CO is Spring or Fall. The best weather to explore Denver, CO is during May-September.

We recommend using the train as it is the most popular way to get from Naperville, IL to Denver, CO among Omio's users.

For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.

Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.

Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.

The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.

The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.

In Denver, CO, travelers should be aware of pickpocketing and petty theft, especially in crowded areas like downtown and tourist attractions. Common scams include overpriced rides from unofficial taxi services and fraudulent ticket sellers near popular venues. It's advisable to use licensed transportation, stay vigilant in busy spots, and avoid sharing personal information with strangers to ensure safety.

Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.