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

£186 Cheap Flights to Thornton

View £186 flight on Tue, 22 Sept 2026Opens in a new window

Popular airlines to Thornton

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Thornton

Prices were available within the past 7 days and start at £186 for one-way flights and £361 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Air Canada
United
Brussels Airlines
Icelandair
Lufthansa

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

From £106 - £226 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 kms (16 miles) 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 kms (16 miles) 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 holiday? 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. Familiarise 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

Expedia flights to Thornton

Searching for cheap flights to Thornton? No travel company presents more choices than Expedia if you're looking to compare flights to Thornton. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Denver. Expedia provides the cheapest flights to many destinations in Denver and you may find even greater savings if you combine your flight with a hotel stay in Thornton.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Thornton for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Thornton flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Expedia flights to Thornton

Travel information

Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Return price
£361

Trending flights to Thornton

Prices were available within the past 7 days and start at £186 for one-way flights and £361 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Brussels Airlines

Explore a world of travel with Expedia

*Available to Expedia members.