$29 Cheap Flights to New Castle, CO

Bundle Your Flight + Hotel & Save!

Featured airlines

Featured Airlines: American Airlines, United Airlines, Delta, Spirit, JetBlue, Frontier, Air India, Hawaiian Airlines and Qatar Airways

How much is the cheapest flight to New Castle?

Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 20 - Tue, Aug 20
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$53 Roundtrip, found 7 hours ago
$53
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Tue, Aug 20 from Dallas-Fort Worth Intl. to Denver Intl., returning Tue, Aug 20, priced at $53 found 7 hours ago
Frontier Airlines
Sat, Aug 24 - Sat, Aug 24
IAH
George Bush Intercontinental
DEN
Denver Intl.
$58 Roundtrip, found 5 hours ago
$58
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Sat, Aug 24 from George Bush Intercontinental to Denver Intl., returning Sat, Aug 24, priced at $58 found 5 hours ago
Frontier Airlines
Sat, Aug 24 - Sat, Aug 24
ORD
O'Hare Intl.
DEN
Denver Intl.
$58 Roundtrip, found 8 hours ago
$58
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Sat, Aug 24 from O'Hare Intl. to Denver Intl., returning Sat, Aug 24, priced at $58 found 8 hours ago
Frontier Airlines
Sat, Sep 7 - Sat, Sep 14
LGA
LaGuardia
DEN
Denver Intl.
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 7 from LaGuardia to Denver Intl., returning Sat, Sep 14, priced at $88 just found
Delta
Tue, Nov 12 - Tue, Nov 12
DAL
Love Field
DEN
Denver Intl.
$171 Roundtrip, found 1 day ago
$171
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Nov 12 from Love Field to Denver Intl., returning Tue, Nov 12, priced at $171 found 1 day ago

Find Your Flights to New Castle DEN

Cheap flights to New Castle (DEN)

Get started finding a cheap flight to New Castle on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to New Castle.

Roundtrip prices range from $53 - $171, and one-ways to New Castle start as low as $29.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to New Castle (DEN)

You have several options for which airline you choose to travel with to New Castle. There are 10 airlines flying into DEN: Frontier Airlines, Delta. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to New Castle (DEN) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to DEN in August and in August for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

Where can I learn more about changing or canceling my flight to New Castle?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
How do I find cheap flights to New Castle that have flexible change policies?
By using our convenient “No change fee” filter, that’s how. Just type in your origin, destination and travel dates, click “Search,” then check the box underneath the “Flexible change policies” heading (to the left). Expedia makes it simple to find cheap, flexible flights to New Castle.
What is the name of New Castle's airport?
New Castle is served by just one airport, Pitkin County Airport (ASE).
How many airlines fly to New Castle?
There are 19 air carriers that jet into New Castle from 194 airports across the globe.
How many nonstop flights are there to New Castle?
Flying to somewhere new is much more straightforward when there aren’t any stopovers to slow you down. If you’re jetting off to New Castle, the good news is that there are 6,388 nonstop flights operating every week.
Where are the most popular flights to New Castle departing from?
Travelers frequently set off from Dallas, Phoenix and Chicago airports when going to New Castle.
How long is the flight to New Castle Airport?
If it’s Phoenix you’re departing, you’ll be midair for around 1 hour and 39 minutes before you arrive in New Castle. Tarmac to tarmac from Chicago generally takes 2 hours and 43 minutes and from Dallas, it’s 2 hours and 14 minutes.
How to book the cheapest flight to New Castle?
If you want to save some cash on your trip to New Castle, listen up! As any experienced traveler will tell you, don’t leave booking until the last minute. Fares are usually more expensive just prior to the departure date. Also, shop around and compare your options. If your destination has more than one airport, you may be able to nab a better deal by flying into one that’s farther away. Lastly, another easy way to save some cash is be ready to book at a moment’s notice. If you spot a terrific deal, don’t think twice — grab it while you can.
How to survive the flight to New Castle?
Depending on where you’re coming from, your flight to New Castle could be completely painless or it could go on forever. We’ve rounded up some handy hints that will help you start your next great adventure on a positive note.What to pack in your hand luggage:

  • The trick to having a hassle-free travel experience is to be prepared. First up, the essentials: passport, official ID, bank cards and daily medications. Next, bring on board items that’ll help keep you entertained, like some electronic devices or a magazine. It’s also smart to bring your chargers, a neck pillow and a pair of earplugs. Last but not least, be sure to pop in toiletries like a toothbrush, facial wipes and a fresh change of clothes.

Do not pack the following items in your hand luggage:

  • While the list of banned items differs between air carriers, the general rule to follow is avoid carrying anything sharp, flammable or explosive. This includes screwdrivers, blades, spray paint and fireworks. Sports equipment like baseball bats, and items that could harm other people, such as swords and guns, are also banned from the cabin.

What to wear on a flight:

  • Your aim here is to feel as comfortable as possible. Don layers of natural fibers and pack a cardigan in case it gets cool in the cabin. Pick a pair of well-fitting, flat shoes as it’s possible that your feet and ankles will swell during the journey. Leave the stilettos and chunky boots in your luggage.
  • Unfortunately, a risk of long-haul flights is developing DVT (deep vein thrombosis), a blood clotting condition caused by prolonged periods of inactivity. To prevent this from happening, take every opportunity to wander around the cabin. Compression tights and socks are another simple way to help reduce this risk.

How to get through airport security fast when flying to New Castle?
The answer is — be prepared. We’ve put together some useful tips for an easy trip through airport security. Watch out New Castle, here you come:

  • Your ID and travel documents will need to be inspected by airport security. Keep them handy so you don’t hold up the queue.
  • Time to strip down. Well sort of. Your belt, jacket, keys and other items in your pocket, like your earphones, will need to go through the X-ray machine. Make the whole process faster by removing them before your turn.
  • All your electronic devices, including your laptop and phone, must also be scanned.
  • Remove gels and liquids from your carry-on luggage. They often need to be sent through the X-ray scanner separately. Each product should be in a container no larger than 3.4 ounces (100 milliliters) and everything must fit inside a quart-size (one liter), clear zip-lock bag.
  • Slip-on shoes are a clever footwear choice as you’re less likely to be asked to remove them when going through security. Big boots and heavier-style shoes are usually subjected to extra screening.
  • Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, put them in your checked baggage. They won’t be allowed in the cabin.

Flights to New Castle information
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Roundtrip price
$52

Trending flights to New Castle

Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 20 - Tue, Aug 20
DFW
Dallas-Fort Worth Intl.
DEN
Denver Intl.
$53 Roundtrip, found 7 hours ago
$53
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Tue, Aug 20 from Dallas-Fort Worth Intl. to Denver Intl., returning Tue, Aug 20, priced at $53 found 7 hours ago
*Available to One Key members.