A sunset over a snowy landscape with a river and sparse trees.

Cheap Flights to Thornton , CO from CA $138

View CA $138 flight on Sat, Sep 26, 2026Opens in a new window

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How much is the cheapest flight to Thornton?

Prices were available within the past 7 days and start at CA $138 for one-way flights and CA $275 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Southwest Airlines
United
WestJet
American Airlines

Find the cheapest month to fly from Columbus (CMH) to Denver (DEN)

From CA $227 - CA $460 per traveller.

Frequently asked questions

What is the name of Thornton's airport?
Thornton has one main airport, Denver Intl. Airport (DEN).
How far is Denver Airport from central Thornton?
The journey between Denver Airport and downtown Thornton is reasonably long. You'll need to travel 26 kilometres before you can check in to your hotel in the city.
What airport is best to fly into Thornton?
Denver Intl. Airport (DEN) is the main airport in Thornton. Before you jet off, it's a wise idea to find out a thing or two about it. The terminal sits 26 kilometres from the centre of town.
How many airlines fly to Thornton?
Thornton is serviced by 24 air carriers from 204 worldwide airports.
Which airlines fly to Thornton?
Southwest Airlines, United Airlines and Frontier Airlines are the most frequent fliers to Thornton. The majority of flights come in from Phoenix, with Southwest Airlines offering the most services on this route.
How many nonstop flights are there to Thornton?
With approximately 5,892 nonstop flights every week, you'll be hitting the runway in Thornton before you can ask, "Are we there yet?"
Where are the most popular flights to Thornton departing from?
The most popular flights to Thornton set off from Phoenix, Dallas and Salt Lake City airports.
How long is the flight to Thornton Airport?
If you're going to Thornton from Phoenix, you'll have a flight duration of 1 hour and 51 minutes. Those setting off from Dallas can expect to be airborne for 2 hours and 10 minutes. From Salt Lake City it's about 1 hour and 40 minutes away.
How to book the cheapest flight to Thornton?
We all know those lucky jet-setters who somehow grab impossibly cheap plane tickets whenever they fly. Would you like to know how to do it for your Thornton vacation? Don't leave it until the last possible moment to secure your flight. Don't stop there, though. Do some research and find out if there are a couple of airports at your destination. Prices often differ depending on which airport you go for. Be sure to compare prices across air carriers too. And finally, remember that it's first in, best dressed. Familiarize yourself with airfare costs and have your credit card ready to grab your ticket as soon as you see an unbeatable bargain. The sweetest deals never last long.
Do you have any tips for my flight to Thornton?
Depending on where you're coming from, your flight to Thornton could be as easy as pie or it could drag on forever. Here are some tips that will help you start your next big adventure on the right foot. What to pack in your hand luggage:
  • First and foremost, put in your passport, important documents, cash and medications. Next, you'll want some entertainment to while away the time. A juicy novel and a phone crammed with your favourite movies are good options. If you hope to take a short nap, a comfy neck pillow and some noise-cancelling headphones will also be useful. Finally, squeeze in a few toiletry items to ensure you touchdown looking fresh and raring to go.
Do not pack the following items in your hand luggage:
  • While the list of banned items can differ between air carriers, the general guide to follow is avoid carrying anything sharp, flammable or explosive. This includes things like screwdrivers, pocket knives, spray paint and fireworks. Sports equipment like ski poles, and items that could harm other people, such as guns and swords, aren't allowed in the cabin either.
What to wear on a flight:
  • Choose comfort over style. Prepare for changes in temperature by layering up, and wear flat, enclosed footwear like sneakers.
  • Caused by lengthy periods of inactivity, deep vein thrombosis (DVT) is a blood clotting condition that can affect some passengers during long-distance flights. Reduce the risks by staying hydrated, keeping your lower limbs moving and wearing compression socks to help improve your circulation.
How to get through airport security fast when flying to Thornton?
Being prepared before your flight can make your getaway to Thornton quick and painless. We've compiled some handy hints for a swift journey past security:
  • Be sure to have your travel documents and ID handy. They'll be the first things you'll be asked to show at security.
  • Next up is the X-ray machine. Remove anything metal on you that is likely to set off the scanner's alarm. This includes items like headphones or earphones, as well as heavy coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • All electronic gadgets, including your tablet and phone, are also required to be scanned.
  • Can't travel without your favourite perfume? No problem. As long as the volume is no greater than 3.4 ounces (100 millilitres) and it's stored in a clear zip-close bag, you can keep it with you in your carry-on bag.
  • Slip-on shoes are a sensible footwear choice as you're less likely to have to remove them when going through security. Boots and other heavy shoes are usually subjected to extra screening.
  • Airlines will not allow any sharp objects in your carry-on luggage. If you must bring these kinds of items, check them in.

Book with confidence

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Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Thornton flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Thornton.

Looking to save even more? Get additional savings by bundling your Thornton flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Thornton trip!

Travel information

Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Roundtrip price
CA $266

Trending flights to Thornton

Prices were available within the past 7 days and start at CA $138 for one-way flights and CA $275 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet

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