Cheap flights from Denver to London from $524

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to London departing on 1/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Air Canada Logo
1:25 pm - 9:20 pmDEN-YXU
5h 55m1 stop
Air Canada Logo
5:10 am - 10:23 amYXU-DEN
7h 13m1 stop
$524Air Canada
Find Deal
Sun, Jan 11 - Sun, Jan 18
Air Canada Logo
1:25 pm - 9:20 pmDEN-YXU
5h 55m1 stop
Air Canada Logo
5:10 am - 10:23 amYXU-DEN
7h 13m1 stop
$525Air Canada
Find Deal
Sat, Jan 17 - Tue, Jan 20
Air Canada Logo
8:05 am - 9:20 pmDEN-YXU
11h 15m2 stops
Air Canada Logo
5:10 am - 10:23 amYXU-DEN
7h 13m1 stop
$530Air Canada
Find Deal
Sat, Jan 17 - Tue, Jan 20
Air Canada Logo
7:05 pm - 8:46 amDEN-YXU
11h 41m2 stops
Air Canada Logo
9:25 am - 7:55 pmYXU-DEN
12h 30m2 stops
$535Air Canada
Find Deal
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:25 pm - 9:21 pmDEN-YXU
5h 56m1 stop
United Airlines Logo
5:10 am - 10:23 amYXU-DEN
7h 13m1 stop
$600United Airlines
Find Deal
Sat, Jan 17 - Tue, Jan 20
Air Canada Logo
6:00 am - 5:05 pmDEN-YXU
9h 05m2 stops
Air Canada Logo
9:25 am - 7:55 pmYXU-DEN
12h 30m2 stops
$615Air Canada
Find Deal
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
7:00 am - 7:12 pmDEN-YXU
10h 12m2 stops
Multiple Airlines Logo
8:10 pm - 12:38 pmYXU-DEN
18h 28m3 stops
$1,313Multiple Airlines
Find Deal
Sun, Jan 11 - Sun, Jan 18

Air Canada flights from Denver to London, Ontario

Our best Air Canada deals on Denver to London, Ontario flight tickets
Air Canada
Jan 11
DEN1:25 pmDenver Intl
5h 55m
1 stop
YXU9:20 pmLondon
Jan 18
YXU5:10 amLondon
7h 13m
1 stop
DEN10:23 amDenver Intl
Air Canada
Jan 17
DEN1:25 pmDenver Intl
5h 55m
1 stop
YXU9:20 pmLondon
Jan 20
YXU5:10 amLondon
7h 13m
1 stop
DEN10:23 amDenver Intl
Air Canada
Jan 17
DEN8:05 amDenver Intl
11h 15m
2 stops
YXU9:20 pmLondon
Jan 20
YXU5:10 amLondon
7h 13m
1 stop
DEN10:23 amDenver Intl

momondo Fare Finder

 
Customize your flight search to find flights from Denver to London, Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 29, 2025.
Use the filters below to find and compare flights from Denver to London, Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sun 1/11

1:25 pm-9:20 pm

1 stop5h 55m

London

Sun 1/18

5:10 am-10:23 am

1 stop7h 13m

$524

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sat 1/17

1:25 pm-9:20 pm

1 stop5h 55m

London

Tue 1/20

5:10 am-10:23 am

1 stop7h 13m

$525

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sat 1/17

8:05 am-9:20 pm

2 stops11h 15m

London

Tue 1/20

5:10 am-10:23 am

1 stop7h 13m

$530

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sat 1/17

7:05 pm-8:46 am

2 stops11h 41m

London

Tue 1/20

9:25 am-7:55 pm

2 stops12h 30m

$535

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sat 1/17

1:25 pm-9:21 pm

1 stop5h 56m

London

Tue 1/20

5:10 am-10:23 am

1 stop7h 13m

$600

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sun 1/11

6:00 am-5:05 pm

2 stops9h 05m

London

Sun 1/18

9:25 am-7:55 pm

2 stops12h 30m

$615

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Sun 1/11

7:00 am-7:12 pm

2 stops10h 12m

London

Sun 1/18

8:10 pm-12:38 pm

3 stops18h 28m

$1,313

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from Denver to London, Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to London, Ontario?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to London, Ontario from Denver according to our data. Air Canada is the first choice among our users, with 67% of people opting to fly with this airline when traveling to London, Ontario. Keep in mind that there are 4 different airlines that fly to London, Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Denver to London, Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to London, Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to London, Ontario (DEN to YXU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to London, Ontario

Fastest flight time

5h 56m

Direct flights

None
The fastest flight from Denver to London, Ontario takes 5h 56m
There are no direct flights from Denver to London, Ontario. There are no popular flight routes from Denver to London, Ontario.
  • How far is Denver Intl to London by plane?

    The straight-line distance from Denver Intl to London is 1246.7 mi. A reasonable flight in good conditions will take 5h 55m.

  • When did momondo last update prices for flights from Denver Intl Airport to London Airport?

    Prices for flights from Denver Intl Airport to London Airport were last updated today.

  • How old do you have to be to fly from Denver Intl Airport to London Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to London Airport.

  • What documentation or ID do you need to fly to London Airport?

    The travel and health documents required for your trip to London Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Grand Bend
Port Stanley

Why use momondo?

Why should I use momondo to find a flight deal from Denver to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Denver to London. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Denver to London with flexible booking policies on momondo?

Flights from Denver to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Denver to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Denver.

I’m not ready to book a flight from Denver to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Denver to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Mon 12/29
Mon 1/5

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