Cheap Flights to Thornton , CO from CA $117

View CA $117 flight on Tue, Mar 10, 2026Opens in a new window

Popular airlines to Thornton

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How much is the cheapest flight to Thornton?

Prices were available within the past 7 days and start at CA $117 for one-way flights and CA $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, May 15 - Mon, May 18
DTW
Detroit
DEN
Denver
CA $267 Roundtrip, found 1 hour ago
CA $267
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, May 15 from Detroit to Denver, returning Mon, May 18, priced at CA $267 found 1 hour ago
American Airlines
Sat, Apr 18 - Tue, Apr 21
DTW
Detroit
DEN
Denver
CA $294 Roundtrip, found 1 day ago
CA $294
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Apr 18 from Detroit to Denver, returning Tue, Apr 21, priced at CA $294 found 1 day ago
WestJet
Mon, May 4 - Sun, May 10
YYC
Calgary
DEN
Denver
CA $304 Roundtrip, found 2 hours ago
CA $304
Roundtrip
found 2 hours ago
Select WestJet flight, departing Mon, May 4 from Calgary to Denver, returning Sun, May 10, priced at CA $304 found 2 hours ago
Air Canada
Fri, May 29 - Sun, May 31
YYC
Calgary
DEN
Denver
CA $308 Roundtrip, just found
CA $308
Roundtrip
just found
Select Air Canada flight, departing Fri, May 29 from Calgary to Denver, returning Sun, May 31, priced at CA $308 just found
JetBlue Airways
Tue, Mar 17 - Mon, Mar 23
DTW
Detroit
DEN
Denver
CA $312 Roundtrip, found 2 days ago
CA $312
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Tue, Mar 17 from Detroit to Denver, returning Mon, Mar 23, priced at CA $312 found 2 days ago

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

October is typically the cheapest month to fly

From CA $162 - CA $303 per traveller.

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Expedia.ca gives you the best tools to secure great deals on flights to Thornton. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Thornton. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Thornton.

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.

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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.

Flights to Thornton 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 $117 for one-way flights and CA $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Mon, May 4 - Sun, May 10
YYC
Calgary
DEN
Denver
CA $304 Roundtrip, found 2 hours ago
CA $304
Roundtrip
found 2 hours ago
Select WestJet flight, departing Mon, May 4 from Calgary to Denver, returning Sun, May 10, priced at CA $304 found 2 hours ago

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