Popular airlines to Colorado

  • Frontier Airlines

  • American Airlines

  • United

  • Delta

  • Alaska Airlines

  • Southwest Airlines

  • JetBlue Airways

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Cheap round-trip flights to Colorado

Prices were available within the past 7 days and start at £373 for one-way flights and £557 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 30 Apr - Tue, 4 May
LHR
London
DEN
Denver
£557 Return, found 3 days ago
£557
Return
found 3 days ago
Select Icelandair flight, departing Fri, 30 Apr from London to Denver, returning Tue, 4 May, priced at £557 found 3 days ago
Icelandair
Mon, 23 Nov - Sun, 29 Nov
LGW
London
DEN
Denver
£569 Return, found 3 days ago
£569
Return
found 3 days ago
Select Icelandair flight, departing Mon, 23 Nov from London to Denver, returning Sun, 29 Nov, priced at £569 found 3 days ago
JetBlue Airways
Thu, 24 Sept - Tue, 6 Oct
LHR
London
DEN
Denver
£603 Return, just found
£603
Return
just found
Select JetBlue Airways flight, departing Thu, 24 Sept from London to Denver, returning Tue, 6 Oct, priced at £603 just found
Aer Lingus
Mon, 21 Sept - Mon, 28 Sept
LHR
London
DEN
Denver
£633 Return, found 7 hours ago
£633
Return
found 7 hours ago
Select Aer Lingus flight, departing Mon, 21 Sept from London to Denver, returning Mon, 28 Sept, priced at £633 found 7 hours ago
Brussels Airlines
Fri, 4 Dec - Sat, 5 Dec
LHR
London
DEN
Denver
£637 Return, found 3 days ago
£637
Return
found 3 days ago
Select Brussels Airlines flight, departing Fri, 4 Dec from London to Denver, returning Sat, 5 Dec, priced at £637 found 3 days ago
United
Wed, 10 Mar - Wed, 17 Mar
LHR
London
DEN
Denver
£650 Return, found 1 hour ago
£650
Return
found 1 hour ago
Select United flight, departing Wed, 10 Mar from London to Denver, returning Wed, 17 Mar, priced at £650 found 1 hour ago
Austrian Airlines
Wed, 24 Feb - Wed, 3 Mar
LHR
London
DEN
Denver
£674 Return, just found
£674
Return
just found
Select Austrian Airlines flight, departing Wed, 24 Feb from London to Denver, returning Wed, 3 Mar, priced at £674 just found
Lufthansa
Mon, 15 Feb - Sun, 28 Feb
LHR
London
ASE
Aspen
£861 Return, found 1 hour ago
£861
Return
found 1 hour ago
Select Lufthansa flight, departing Mon, 15 Feb from London to Aspen, returning Sun, 28 Feb, priced at £861 found 1 hour ago
British Airways
Mon, 16 Nov - Mon, 23 Nov
LHR
London
GJT
Grand Junction
£866 Return, found 5 days ago
£866
Return
found 5 days ago
Select British Airways flight, departing Mon, 16 Nov from London to Grand Junction, returning Mon, 23 Nov, priced at £866 found 5 days ago
Lufthansa
Mon, 5 Oct - Sun, 11 Oct
LHR
London
COS
Colorado Springs
£868 Return, found 2 days ago
£868
Return
found 2 days ago
Select Lufthansa flight, departing Mon, 5 Oct from London to Colorado Springs, returning Sun, 11 Oct, priced at £868 found 2 days ago

Trending flights to Colorado

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, 30 Apr - Tue, 4 May
LHR
London
DEN
Denver
£557 Return, found 3 days ago
£557
Return
found 3 days ago
Select Icelandair flight, departing Fri, 30 Apr from London to Denver, returning Tue, 4 May, priced at £557 found 3 days ago

Frequently asked questions

How do I find cheap flights to Colorado that have flexible change policies?
We get that things can change in a flash, so booking a flexible ticket with Expedia is always a smart move. Simply click on "No change fee" under the "Flexible change policies" filter. Your low-cost, flexible flight to Colorado is only a few clicks away.
Which airlines fly to Colorado?
Pack your bags and take your pick of these well-known airlines that have flights into or near Colorado:

  • United Airlines - 13,862 flights to or near Colorado each month, including 13,033 flights to Denver Intl. Airport (DEN) per month.
  • Southwest Airlines - 6,604 flights to or near Colorado each month, including 6,339 flights to Denver Intl. Airport (DEN) per month.
  • Frontier Airlines - 1,967 flights to or near Colorado each month, including 1,967 flights to Denver Intl. Airport (DEN) per month.

How can I find cheap tickets to Colorado?
One of the best ways to bag cheap tickets to Colorado is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It'll bring up the cheapest prices for nearby days. The best price for a flight to Colorado in the last seven days was £557. Booking ahead will usually help you get an even bigger bargain.
How much is a flight to Colorado?
In the last seven days, return tickets to Colorado sold from just £557 and reached a maximum of £868. For one-way journeys departing from London (LGW), the cheapest seat during this time was only £373.
What are the most popular airports to fly into in Colorado?
Cruise into one of these busy Colorado airports and you'll be in the perfect position to discover all that this fantastic region has to offer:

  • Denver Intl. Airport (DEN) - 24,249 flights per month.
  • Colorado Springs Airport (COS) - 889 flights per month.
  • Pitkin County Airport (ASE) - 534 flights per month.

When is the cheapest time to fly to Colorado?
Jet off on a Tuesday to increase your chances of bagging the cheapest deal to Colorado. Mondays are usually the next most affordable day to depart. Saturday is typically the costliest day to fly anywhere.
How much is a plane ticket to Colorado?
In the last seven days, fares ranged between £557 and £868. Have a look at our amazing deals to Colorado, make a booking and then get ready for your getaway!
What is the best time to go to Colorado?
Denver, Colorado's most prominent city, is an awesome location to visit at anytime. Not a big fan of cooler weather? Then venture here from June 20 onward in summer, when temperatures fluctuate from 16ºC to 27ºC. May, July and August is when Denver is at its liveliest.
What months are the cheapest to book a flight to Colorado?
A cheap month to bag a fabulous deal to Colorado is February, while prices are at a premium in December. Try to avoid this month if you'd like to save money.

Book with confidence

Top tips for booking flights to Colorado from UK

Get ready to fly to Colorado

Prepare your luggage and book your flights to Colorado with Expedia. We offer a seamless flight booking experience, with a wide range of Colorado plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Colorado in 2026, we are always available to assist you. Book your flights to Colorado today and let the adventure begin!

Find the best tickets to Colorado

To find some of the best tickets to Colorado in 2026, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Colorado or last-minute flights to Colorado, you can filter and sort your search results, making it easy to find the ideal flight to Colorado.

Airlines fly to Colorado

There are 20 different airlines that fly to Colorado including some of the most trusted names in the business. To book flights to Colorado with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Colorado plane tickets.

Find the cheapest flights to Colorado

By booking early you may find some of the best deals for Colorado flights from the UK, including Colorado direct flights. You can usually find affordable and cheap flights to Colorado, whether one-way from £373 or round-trip from £557, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Colorado

Try searching for different Colorado airports with Expedia to find some of the cheapest flights to Colorado. Flights from London (LGW) to Denver (DEN) usually have the lowest price from £373.

Why book your flights to Colorado with Expedia

Expedia offers great deals on Colorado air fares from £373 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Colorado from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Top tips for booking flights to Colorado from UK

Travel information

Colorado Flights Information

Airlines serving
JetBlue Airways, Icelandair, American Airlines, Swiss International Air Lines, British Airways, Lufthansa, Aer Lingus, Brussels Airlines, United, Austrian Airlines
Roundtrip price
from £557
Colorado Flights Information

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