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New Castle

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New Castle Flights as Low as $138

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Frontier Airlines
Tue, May 13 - Tue, May 13
SAN
San Diego Intl.
DEN
Denver Intl.
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 13 from San Diego Intl. to Denver Intl., returning Tue, May 13, priced at $138 found 2 days ago
Frontier Airlines
Sat, May 17 - Tue, May 20
SAN
San Diego Intl.
DEN
Denver Intl.
$138 Roundtrip, found 7 hours ago
$138
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, May 17 from San Diego Intl. to Denver Intl., returning Tue, May 20, priced at $138 found 7 hours ago
Frontier Airlines
Wed, Jun 18 - Wed, Jun 25
MIA
Miami Intl.
DEN
Denver Intl.
$141 Roundtrip, found 2 days ago
$141
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Jun 18 from Miami Intl. to Denver Intl., returning Wed, Jun 25, priced at $141 found 2 days ago
Frontier Airlines
Wed, Jun 18 - Tue, Jun 24
MIA
Miami Intl.
DEN
Denver Intl.
$147 Roundtrip, found 2 days ago
$147
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Jun 18 from Miami Intl. to Denver Intl., returning Tue, Jun 24, priced at $147 found 2 days ago
Frontier Airlines
Tue, May 20 - Wed, May 28
MIA
Miami Intl.
DEN
Denver Intl.
$148 Roundtrip, found 2 days ago
$148
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 20 from Miami Intl. to Denver Intl., returning Wed, May 28, priced at $148 found 2 days ago
Frontier Airlines
Tue, May 13 - Thu, May 15
SAN
San Diego Intl.
DEN
Denver Intl.
$152 Roundtrip, found 2 days ago
$152
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 13 from San Diego Intl. to Denver Intl., returning Thu, May 15, priced at $152 found 2 days ago
Frontier Airlines
Fri, May 16 - Tue, May 20
SAN
San Diego Intl.
DEN
Denver Intl.
$152 Roundtrip, found 7 hours ago
$152
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Fri, May 16 from San Diego Intl. to Denver Intl., returning Tue, May 20, priced at $152 found 7 hours ago
United
Wed, Aug 6 - Tue, Aug 12
SAN
San Diego Intl.
DEN
Denver Intl.
$197 Roundtrip, found 6 days ago
$197
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 6 from San Diego Intl. to Denver Intl., returning Tue, Aug 12, priced at $197 found 6 days ago
Bargain Flight
Sun, Sep 7 - Wed, Sep 10
SAN
San Diego Intl.
GJT
Grand Junction Regional
$199 Roundtrip, found 1 day ago
$199
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Sun, Sep 7 from San Diego Intl. to Grand Junction Regional, returning Wed, Sep 10, priced at $199 found 1 day ago
American Airlines
Sun, Sep 7 - Wed, Sep 10
CLD
McClellan-Palomar
GJT
Grand Junction Regional
$211 Roundtrip, found 1 day ago
$211
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Sep 7 from McClellan-Palomar to Grand Junction Regional, returning Wed, Sep 10, priced at $211 found 1 day ago
American Airlines
Sun, Sep 7 - Wed, Sep 10
SAN
San Diego Intl.
GJT
Grand Junction Regional
$211 Roundtrip, found 1 day ago
$211
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Sep 7 from San Diego Intl. to Grand Junction Regional, returning Wed, Sep 10, priced at $211 found 1 day ago
American Airlines
Thu, Aug 7 - Mon, Aug 11
CLD
McClellan-Palomar
DEN
Denver Intl.
$217 Roundtrip, found 4 days ago
$217
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Aug 7 from McClellan-Palomar to Denver Intl., returning Mon, Aug 11, priced at $217 found 4 days ago
Delta
Wed, Aug 6 - Tue, Aug 12
SAN
San Diego Intl.
DEN
Denver Intl.
$217 Roundtrip, found 6 days ago
$217
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Aug 6 from San Diego Intl. to Denver Intl., returning Tue, Aug 12, priced at $217 found 6 days ago
JetBlue Airways
Tue, May 20 - Wed, May 28
MIA
Miami Intl.
DEN
Denver Intl.
$247 Roundtrip, found 2 days ago
$247
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, May 20 from Miami Intl. to Denver Intl., returning Wed, May 28, priced at $247 found 2 days ago
Alaska Airlines
Wed, Aug 6 - Tue, Aug 12
SAN
San Diego Intl.
DEN
Denver Intl.
$276 Roundtrip, found 6 days ago
$276
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Aug 6 from San Diego Intl. to Denver Intl., returning Tue, Aug 12, priced at $276 found 6 days ago
United
Thu, May 8 - Thu, May 15
MIA
Miami Intl.
GJT
Grand Junction Regional
$547 Roundtrip, found 1 day ago
$547
Roundtrip
found 1 day ago
Select United flight, departing Thu, May 8 from Miami Intl. to Grand Junction Regional, returning Thu, May 15, priced at $547 found 1 day ago

Cheap Flights to New Castle

Fall in love at first flight with your vacation to New Castle by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to New Castle on Hotwire, and you’ll be up, up, and on a getaway in no time.

Because once the wheels are down in New Castle, the good times start rolling. So buckle up, you’re in for a fun ride.

Frequently Asked Questions About flights to New Castle

Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to New Castle with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.

So all you have to worry about is where you’re headed after the DEN airport.

What is the cheapest month to fly to New Castle?

Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to New Castle are in May, but when you book your flight on Hotwire, savings are always in season.

How many airlines fly to New Castle?

Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 15 to choose from for your flight to New Castle.

What airport is best to fly into New Castle?

When you’re planning your trip to New Castle, convenience is the name of the game. Luckily, New Castle Eagle County Regional Airport is nearby so you can deplane and get going on checking off everything on your New Castle must-do list.

How much are flights to New Castle?

Got very cheap flights on your vacation itinerary? When you book your airline tickets to New Castle on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $138, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.

How to get cheap flights to New Castle?

The trick to saving a stack of cash on your flight to New Castle? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $138 right now, why wait?

New Castle Flight Information
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Roundtrip price
$148

Last Minute Hotel Deals in New Castle

Wingate by Wyndham New Castle - Glenwood Springs
Wingate by Wyndham New Castle - Glenwood Springs
2 out of 5
781 Burning Mountain Ave, New Castle, CO
The price is $87 per night from May 19 to May 20
$87
includes taxes & fees
May 19 - May 20
Book a stay at this business-friendly hotel in New Castle. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7.4/10 Good! (955 reviews)
"We love Glenwood and the surrounding area! Look up the Iron Mountain hot springs and pay the little extra charge for the international hot springs experience cuz it’s worth it!!!"

Reviewed on Apr 10, 2025

Wingate by Wyndham New Castle - Glenwood Springs
Hotel Colorado
Hotel Colorado
3.5 out of 5
526 Pine St, Glenwood Springs, CO
The price is $125 per night from May 5 to May 6
$125
includes taxes & fees
May 5 - May 6
Book a stay at this business-friendly hotel in Glenwood Springs. Enjoy free WiFi, 2 bars/lounges, and breakfast (surcharge). Our guests praise the restaurant ...
8.8/10 Excellent! (1,662 reviews)
"Such a beautiful historical hotel! Rooms were nice. They have been upgraded but you still see the beauty of how it once was."

Reviewed on May 1, 2025

Hotel Colorado
Best Western Antlers at Glenwood Springs
Best Western Antlers at Glenwood Springs
2.5 out of 5
171 W 6th Street, Glenwood Springs, CO
The price is $107 per night from May 11 to May 12
$107
includes taxes & fees
May 11 - May 12
Book a stay at this business-friendly hotel in Glenwood Springs. Enjoy free breakfast, free parking, and free bicycles on site. Our guests praise the breakfast ...
9/10 Wonderful! (1,176 reviews)
Good stay for one night
"Building is a bit older, you can tell by the walls/paint etc. otherwise it was clean when we arrived. Would have been nice to have a holder for the soap. Very close proximity to iron mountain hot springs. Breakfast and the front office are in another building a short walk away."

Reviewed on Apr 30, 2025

Best Western Antlers at Glenwood Springs
La Quinta Inn & Suites by Wyndham Glenwood Springs
La Quinta Inn & Suites by Wyndham Glenwood Springs
2.5 out of 5
124 West 6th Street, I-70 at Exit 116, Glenwood Springs, CO
The price is $114 per night from May 5 to May 6
$114
includes taxes & fees
May 5 - May 6
Book a stay at this business-friendly hotel in Glenwood Springs. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
8.4/10 Very Good! (1,406 reviews)
"Hotel is great! Comfortable, well kept up, in a convenient location and reasonable."

Reviewed on Apr 30, 2025

La Quinta Inn & Suites by Wyndham Glenwood Springs
Hotel Glenwood Springs
Hotel Glenwood Springs
2.5 out of 5
52000 Two Rivers Plaza Rd, Glenwood Springs, CO
The price is $130 per night from May 4 to May 5
$130
includes taxes & fees
May 4 - May 5
Book a stay at this ski hotel in Glenwood Springs. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the pool and the helpful staff in our ...
8.2/10 Very Good! (1,147 reviews)
"We chose this hotel because it is pet friendly, the location and the pool, it has a really nice hot tub, and the slide was just great, it actually saved our little mini vaca because everything we wanted to do was closed, the adventure park, and springs so the pool was a awesome, clean and safe. the ..."

Reviewed on Apr 28, 2025

Hotel Glenwood Springs
Glenwood Springs Cedar Lodge
Glenwood Springs Cedar Lodge
2 out of 5
2102 Grand Ave, Glenwood Springs, CO
The price is $86 per night from May 4 to May 5
$86
includes taxes & fees
May 4 - May 5
Stay at this hotel in Glenwood Springs. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the pool in our reviews. Popular ...
8.6/10 Excellent! (1,424 reviews)
"Affordable and a great little stop for 1 night. Would definitely like to see the pool in the summer"

Reviewed on May 1, 2025

Glenwood Springs Cedar Lodge
Silver Spruce Inn
Silver Spruce Inn
2 out of 5
162 W 6th Street, Glenwood Springs, CO
The price is $113 per night from May 4 to May 5
$113
includes taxes & fees
May 4 - May 5
Book a stay at this business-friendly motel in Glenwood Springs. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
8.8/10 Excellent! (1,000 reviews)
"Enjoyed the location in relation to where my conference was being held. Nice friendly hotel personnel. Would definitely consider staying at this place again."

Reviewed on Apr 28, 2025

Silver Spruce Inn
Glenwood Springs Inn
Glenwood Springs Inn
2 out of 5
141 W. 6th Street, Glenwood Springs, CO
The price is $102 per night from May 11 to May 12
$102
includes taxes & fees
May 11 - May 12
Stay at this motel in Glenwood Springs. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our reviews. ...
8.8/10 Excellent! (1,419 reviews)
"."

Reviewed on Apr 28, 2025

Glenwood Springs Inn
See all 548 properties in New Castle
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.