Cheap flights To Thornton (DEN) from $28
Earn rewards on top of your airline miles with Orbitz Rewards
Many airlines offer flexible change policies
Sign up to receive text alerts about your trip
Cheap Flights to Thornton from $28 One Way, $56 Round Trip
Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.
Thornton Flight Information
Traveling To | Thornton |
|---|---|
Destination Airport IATA Code | DEN |
Number of Airlines Serving | |
Airlines | Frontier Airlines, Sun Country Airlines |
Flight Price | $56 |
Earliest Departing Flight | |
Latest Departing Flight |
Book Your Flight & Hotel Together & Save
- Economy Flight + Hotel Deals
- Premium Economy Flight + Hotel Deals
- Business Class Flight + Hotel Deals
- First Class Flight + Hotel Deals
Thornton economy flight packages
Thornton premium economy flight packages
Holiday Inn Express Denver Downtown by IHG
May 15 - May 17
Los Angeles (LAX) to Denver (DEN)
Reviewed on Dec 22, 2025
Hyatt Regency Denver at Colorado Convention Center
May 15 - May 17
Los Angeles (LAX) to Denver (DEN)
Reviewed on Jan 27, 2026
The Brown Palace Hotel and Spa, Autograph Collection
May 15 - May 17
Los Angeles (LAX) to Denver (DEN)
Reviewed on Dec 28, 2025
Thornton
Finding cheap flights to Thornton is easy when you have Orbitz at your fingertips. Not only does Orbitz offer great deals on Thornton flights, but we also include some special extras to make booking a breeze. Just check out our:
Mobile Site and Apps
With Orbitz’s mobile site, m.orbitz.com, you can book your flights to Thornton through your smartphone or tablet’s Web browser. Plus, our free downloadable apps for Android and iPhone mean it’s just a simple click to access your flight updates and alerts. You can even book exclusive mobile-only deals on hotels to go with your flights to Thornton—even on the same day.
Pick and Choose or Book Full Vacation Packages
Don’t just be satisfied with great deals on Thornton flights—go for the full package! With Orbitz, you can also find fantastic savings on the perfect hotel, car rental, cruise, and even activities, so you don’t waste your trip waiting in line but have the time to enjoy your trip. Pick and choose the add-ons you need, or book an entire vacation package for greater overall discounts.
Rewards That Are Miles Better
Booking directly with an airline earns you air miles or points, and you can get those same rewards with booking on Orbitz too. When you book qualifying flights to Thornton with Orbitz, just add in your frequent flyer number during your online booking and your details will be sent to your program.
Great Deals Every Day
Add in our extra savings on packages, free nights, and other discounts, and you know you are in good hands.
More to Explore
More to Explore
- Hotels near Mid-Air Adventures
- Federal Heights Hotels
- Motels in Federal Heights
- Rv Parks in Federal Heights
- Cabin Rentals in Denver
- Cheap Hotels in Denver
- Hotels with Free Airport Shuttle in Denver
- Denver Hotels
- Hotels near Water World
- 5 Star Hotels in Northglenn
- Apartments in Northglenn
- B&B in Northglenn
- Cabin Rentals in Northglenn
- Castles in Northglenn
- Condo Rentals in Northglenn
- Extended Stay Hotels in Northglenn
- Best Western Hotels in Northglenn
- Casino Resorts & in Northglenn
- Cheap Hotels in Northglenn
- Drury Inn & Suites Hotels in Northglenn
- Extended Stay America Hotels in Northglenn
- Kid Friendly Hotels in Northglenn
- Hotels with Pool in Northglenn
- Hotels with Free Breakfast in Northglenn
- Hotels with Hot Tubs in Northglenn
- Pet Friendly Hotels in Northglenn
- Hotels with Shopping in Northglenn
- Hotels with a Wedding Venue in Northglenn
- Northglenn Hotels
- Motels in Northglenn
- Vacation Homes in Northglenn
- Resorts in Northglenn
- Villas in Northglenn
- Flights to Arvada
- Flights to Parker
- Flights to Broomfield
- Flights to Westminster
- Flights to Boulder
- Flights to Berthoud
- Flights to Brighton
- Flights to Idaho Springs
- Flights to Lakewood
- Flights to Aurora
- Flights to Centennial
- Flights to Evergreen
- Flights to Golden
- Flights to Louisville
- Flights to Black Hawk
- Flights to Central City
- Flights to Longmont
- Flights to Morrison
- Flights to Colorado
- Flights to Littleton
- Flights to Wheat Ridge
- Flights to Commerce City
- Flights to Platteville
- Flights to Federal Heights
- Flights to Strasburg
- Flights to Englewood
- Flights to Denver
- Flights from Atlanta to Denver
- Flights from Austin to Denver
- Flights from Boston to Denver
- Flights from Charlotte to Denver
- Flights from Chicago to Denver
- Flights from Dallas to Denver
- Flights from Denver
- Flights from Detroit to Denver
- Flights from Houston to Denver
- Flights from Las Vegas to Denver
- Flights from Los Angeles to Denver
- Flights from Miami to Denver
- Flights from Minneapolis - St. Paul to Denver
- Flights from New York to Denver
- Flights from Orlando to Denver
- Flights from Philadelphia to Denver
- Flights from Phoenix to Denver
- Flights from Salt Lake City to Denver
- Flights from Seattle to Denver
- Flights from Tampa to Denver
- Flights to Greenwood Village
- Flights to Northglenn
- Flights from Boston to Northglenn
- Flights from Houston to Northglenn
- Flights from Miami to Northglenn
- Flights from Minneapolis - St. Paul to Northglenn
- Flights from New York to Northglenn
- Flights from Newark to Northglenn
- Flights from Tucson to Northglenn
- Flights to Castle Rock
- Rental cars Denver Intl. airport
- Airport Van Rental Rental Cars in Northglenn
- Car rental Northglenn
- Enterprise Rental Cars in Northglenn
- Nü Car Rentals Rental Cars in Northglenn
- National Car Rental Rental Cars in Northglenn
- Routes Rental Cars in Northglenn
- Thrifty Car Rental Rental Cars in Northglenn
- Car rentals in Northglenn
- Hotels in Westminster
- Hotels in Denver
- Things to do in Westminster
- Car rentals in Denver
- Flights to Denver
- Hotels in Northglenn
- Car rentals in Westminster
- Visit Boondocks Food and Fun
- Cheap Hotels in Westminster
- Hotels near Water World
- Car rentals at Denver Airport (DEN)
- Hotels in Downtown Denver
Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.