£243 Cheap Flights from Colorado Springs (COS) to London (LHR)

View £243 flight on Mon, 23 Nov 2026Opens in a new window

Popular airlines from Colorado Springs Municipal Airport (COS) to Heathrow Airport (LHR)

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Cheap Flights from Colorado Springs (COS) to London (LHR)

Prices were available within the past 7 days and start at £243 for one-way flights and £638 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Mon, 10 Aug - Tue, 8 Sept
COS
Colorado Springs
LHR
London
£638 Return, found 5 days ago
£638
Return
found 5 days ago
Select Iberia flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 8 Sept, priced at £638 found 5 days ago
Iberia
Mon, 10 Aug - Mon, 24 Aug
COS
Colorado Springs
LHR
London
£646 Return, found 5 days ago
£646
Return
found 5 days ago
Select Iberia flight, departing Mon, 10 Aug from Colorado Springs to London, returning Mon, 24 Aug, priced at £646 found 5 days ago
Air Canada
Mon, 10 Aug - Tue, 25 Aug
COS
Colorado Springs
LHR
London
£655 Return, found 5 days ago
£655
Return
found 5 days ago
Select Air Canada flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 25 Aug, priced at £655 found 5 days ago
Lufthansa
Mon, 10 Aug - Tue, 25 Aug
COS
Colorado Springs
LHR
London
£656 Return, found 5 days ago
£656
Return
found 5 days ago
Select Lufthansa flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 25 Aug, priced at £656 found 5 days ago
British Airways
Wed, 30 Sept - Tue, 8 Dec
COS
Colorado Springs
LHR
London
£661 Return, found 3 days ago
£661
Return
found 3 days ago
Select British Airways flight, departing Wed, 30 Sept from Colorado Springs to London, returning Tue, 8 Dec, priced at £661 found 3 days ago
British Airways
Mon, 10 Aug - Tue, 8 Sept
COS
Colorado Springs
LHR
London
£662 Return, found 5 days ago
£662
Return
found 5 days ago
Select British Airways flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 8 Sept, priced at £662 found 5 days ago
Lufthansa
Mon, 10 Aug - Tue, 25 Aug
COS
Colorado Springs
LHR
London
£664 Return, found 5 days ago
£664
Return
found 5 days ago
Select Lufthansa flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 25 Aug, priced at £664 found 5 days ago
Lufthansa
Mon, 10 Aug - Tue, 25 Aug
COS
Colorado Springs
LHR
London
£664 Return, found 5 days ago
£664
Return
found 5 days ago
Select Lufthansa flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 25 Aug, priced at £664 found 5 days ago
Air Canada
Mon, 10 Aug - Tue, 8 Sept
COS
Colorado Springs
LHR
London
£671 Return, found 5 days ago
£671
Return
found 5 days ago
Select Air Canada flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 8 Sept, priced at £671 found 5 days ago
KLM
Mon, 10 Aug - Tue, 8 Sept
COS
Colorado Springs
LHR
London
£685 Return, found 5 days ago
£685
Return
found 5 days ago
Select KLM flight, departing Mon, 10 Aug from Colorado Springs to London, returning Tue, 8 Sept, priced at £685 found 5 days ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from £1,089
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from £1,089

Frequently asked questions

How do I find cheap flights from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
To find a cheap flight from Colorado Springs, CO (COS) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
There are approximately 25 connecting flights per day from Colorado Springs, CO (COS) to London Heathrow (LHR). Some common connection points include Denver Intl. (DEN), Dallas-Fort Worth Intl. (DFW), and O'Hare Intl. (ORD).
What is the earliest flight from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
The earliest flight from Colorado Springs, CO (COS) to London Heathrow (LHR) typically departs at approximately 5:00 AM local time. This service is operated by American Airlines and is seasonal, active only in June. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
You'll typically find the most flights from Colorado Springs, CO (COS) to London (LHR-Heathrow) (LHR) on a Saturday, with around 39 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Looking at the overall week, Saturday has notably more flight options compared to other days.
What are the most popular departure times for flights from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
The most popular departure times for flights from Colorado Springs, CO (COS) to London (LHR-Heathrow) are in the afternoon, from 12pm to 3pm. About 41% of passengers prefer this time. Many major carriers, including United Airlines, Delta and American Airlines, offer flights during this window. This timing works well because it allows you to have a relaxed morning before heading to the airport, and you'll arrive at your destination ready for the evening or a good night's rest.
How long does it take to fly from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
A flight from COS to LHR with a layover takes around 12 hours 20 minutes, with the route covering approximately 4,716 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for COS to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Colorado Springs, CO (COS) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Colorado Springs, CO (COS) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from COS (COS)?
From COS (COS), you can fly into Heathrow (LHR) to reach London. Some flights may connect through major hubs like Denver Intl. (DEN), Dallas-Fort Worth Intl. (DFW), Hartsfield-Jackson Atlanta Intl. (ATL) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Colorado Springs, CO (COS) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Colorado Springs, CO (COS) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Colorado Springs, CO (COS) to London (LHR-Heathrow) flight and hotel package?
Securing a Colorado Springs, CO (COS) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Colorado Springs, CO (COS) to London (LHR-Heathrow)?
If you booked your Colorado Springs, CO (COS) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Colorado Springs
Destination airport
Heathrow
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Iberia, KLM, Lufthansa, United, Virgin Atlantic
Return price
£637
Distance
7544 km

Book with confidence

Compare flights from Colorado Springs to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Colorado Springs to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Colorado Springs to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Colorado Springs (COS) to Heathrow (LHR)

The easiest way to view the best deals on flights from Colorado Springs to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Colorado Springs to Heathrow start at just £638 and range up to £685.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Colorado Springs and London
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Colorado Springs to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Colorado Springs to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Colorado Springs to London easily and book with confidence

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