COS - LHR

$599 Find Cheap Flights from Colorado Springs to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Colorado Springs to London departing on 1/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Colorado Springs to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Colorado Springs to London, as well as popular online travel agencies
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colorado Springs to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colorado Springs to London

Tue, Jan 13 - Wed, Jan 21
Delta Logo
7:59 am - 10:00 amCOS-LHR
19h 01m1 stop
Delta Logo
6:20 am - 10:23 pmLHR-COS
23h 03m2 stops
$599Delta
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Tue, Jan 13 - Wed, Jan 21
Delta Logo
7:59 am - 11:40 amCOS-LHR
20h 41m2 stops
Delta Logo
6:20 am - 10:23 pmLHR-COS
23h 03m2 stops
$604Delta
Find Deal
Sun, Dec 7 - Sun, Dec 14
KLM Logo
1:42 pm - 9:00 amCOS-LHR
12h 18m1 stop
KLM Logo
5:50 pm - 5:19 pmLHR-COS
30h 29m2 stops
$621KLM
Find Deal
Sun, Feb 8 - Tue, Feb 24
Air Canada Logo
5:50 am - 7:10 amCOS-LHR
18h 20m2 stops
Air Canada Logo
3:00 pm - 10:52 amLHR-COS
26h 52m2 stops
$634Air Canada
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Sun, Feb 8 - Thu, Feb 19
United Airlines Logo
3:30 pm - 9:40 amCOS-LHR
11h 10m1 stop
United Airlines Logo
9:30 am - 11:45 pmLHR-COS
21h 15m2 stops
$640United Airlines
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Sun, Dec 7 - Sun, Dec 14
KLM Logo
1:42 pm - 9:00 amCOS-LHR
12h 18m1 stop
KLM Logo
10:45 am - 5:19 pmLHR-COS
13h 34m1 stop
$649KLM
Find Deal
Sat, Jan 10 - Fri, Jan 23
United Airlines Logo
5:05 pm - 9:40 amCOS-LHR
33h 35m1 stop
United Airlines Logo
11:35 am - 4:28 pmLHR-COS
11h 53m1 stop
$657United Airlines
Find Deal
Tue, Feb 10 - Fri, Feb 20
Air Canada Logo
11:33 am - 8:30 amCOS-LHR
13h 57m2 stops
Air Canada Logo
3:00 pm - 10:52 amLHR-COS
50h 52m2 stops
$664Air Canada
Find Deal
Sun, Jan 11 - Wed, Jan 21
British Airways Logo
3:17 pm - 11:40 amCOS-LHR
13h 23m1 stop
British Airways Logo
10:05 am - 5:41 pmLHR-COS
14h 36m1 stop
$670British Airways
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Sun, Jan 11 - Mon, Jan 19
British Airways Logo
3:17 pm - 11:40 amCOS-LHR
13h 23m1 stop
British Airways Logo
10:05 am - 5:41 pmLHR-COS
14h 36m1 stop
$695British Airways
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $599 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 22% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$599
Overall average: $713
Delta
Tue 1/13Wed 1/21
COS - LHR • 1 stop
Cheapest one-way
$774
Lufthansa
Wed 12/17
COS - LHR • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Booking Insights

KAYAK's insights & trends for Colorado Springs to London flights

Get data-powered insights and trends into flights from Colorado Springs to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Colorado Springs to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Colorado Springs to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Colorado Springs to London Heathrow Airport is November, where tickets cost $692 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $1,553 and $1,001 respectively.

Good to know

Low seasonJanuary
Cheapest flight$599
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Colorado Springs to London

When to book flights from Colorado Springs to London

Are your dates flexible? Find out the best times to travel from Colorado Springs to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Colorado Springs to London flights

  • What is the cheapest flight from Colorado Springs to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Colorado Springs to London Heathrow Airport was $774 for a one-way ticket and $599 for a round-trip.

  • Do I need a passport to fly between Colorado Springs and London?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Colorado Springs and on arrival in London.

  • Which airports will I be using when flying from Colorado Springs to London?

    Colorado Springs airport is called Colorado Springs and the only airport in London is London Heathrow.

  • Which aircraft models fly most regularly from Colorado Springs to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Colorado Springs to London?

    oneworld, and Star Alliance are the airline alliances operating flights between Colorado Springs and London, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Colorado Springs to London, United Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Colorado Springs to London are United Airlines and British Airways. With an average price for the route of $849 and an overall rating of 7.4, United Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $881 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Colorado Springs to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado Springs to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado Springs to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Colorado Springs is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado Springs to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Colorado Springs with another airline. Booking your flights between Colorado Springs and LHR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado Springs to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Colorado Springs up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Colorado Springs to London

 
See real verified KAYAK customer reviews for airlines flying from Colorado Springs to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Colorado Springs to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8998 reviews
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

10.0 ExcellentBen, Oct 2025DEN - PVR
Read more United Airlines reviews

Great smooth flight. Had a seating change, but that was an improvement. Thanks United Airways Crew.

Flight was good but there are way to many announcements for credit cards etc.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Everything you need to know for your flight from Colorado Springs to London

Information on your arrival and departure airports

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