$28 Cheap Flights to New Castle, CO

The cheapest month to fly to New Castle is September when there's less demand. Off-peak months are often when you'll find cheap flights. To keep costs down, avoid flying during school breaks and public holidays.

Get cheap flights to New Castle from Chicago, Phoenix and Dallas. These cities usually offer the best fares to this much-loved destination. But remember that holiday periods, demand and stopovers will also influence rates, so remain flexible and book when you see a bargain.

You can fly to New Castle without a stopover from 164 US cities. To find a nonstop trip, use the "Direct flights only" filter when browsing for flights to New Castle on Expedia. Then, compare your choices and pick the best departure from any of these cities:

• Chicago
• Phoenix
• Dallas
• Las Vegas
• Salt Lake City

Book well in advance or search for a cheap flight to New Castle during the low season, such as April and November. Flying off on a Thursday could also save you 16% on average compared to a Sunday departure.* The Expedia app makes it even easier to know the right time to book. Just turn on the toggle for "Watch prices" and you'll get notified when there's a better deal.

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Although booking in advance is typically the best way to save money, don't panic if your New Castle vacation is last minute. You can still find cheap flights to New Castle, especially if your plans have a little wiggle room. Try changing your travel dates, exploring different ticket types or flying out of another airport.

To pick up the best deals on domestic journeys, book your flight to New Castle 28 days ahead of your travel dates. For international flights, search for your ticket two to four months in advance. This boosts your chances of getting your preferred departure dates, times and seats.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

Sundays are typically the best day to book a cheap flight to New Castle, with savings of around 8% on average compared to Fridays. If you decide to buy tickets on a Friday, expect to pay a higher price as this is typically the most expensive day.*

*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.

New Castle has connections with 5 airports around the globe through 3 carriers, including United Airlines. Pitkin County Airport (ASE) serves as the primary hub for several airlines to New Castle. American Airlines can also take you to this destination.

If you're flying to New Castle, the main airport to jet into is Eagle County Regional Airport (EGE). You could also fly to New Castle via Pitkin County Airport (ASE).

You'll be roughly 35 mi east of the center of New Castle after arriving at Eagle County Regional Airport (EGE).

Bundle your accommodations and flights and you could save hundreds of dollars. Plus, you can add extras like tours and car rentals to your New Castle flight and hotel package deal. With Expedia, it's easy to organize all your New Castle travel arrangements in the same place.

You can often change or cancel your flight to New Castle within 24 hours of booking. However, be mindful that some fares are non-refundable. In those cases, you may be issued credit for future flights in place of a direct refund. Remember to check the airline's terms and conditions in your itinerary for exact details. Use Expedia's "Changes included" or "No cancel fee" filters during your search to find cheap flights to New Castle with flexible change policies. For more information, head to our Customer Service Portal.