Direct flights to Denver | Cheapflights

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Cheapest flights to Denver
Explore the most affordable flight options available to Denver. Find the lowest fares based on data from user searches, with prices last updated on 16 February 2026.

Tue 7/713:35

LHR

-

DEN

Nonstop9h 55m

British Airways

Tue 14/718:40

DEN

-

LHR

Nonstop8h 55m

British Airways

Deal found 15/2£558

Mon 16/312:25

LHR

-

DEN

Nonstop10h 05m

British Airways

Mon 30/318:40

DEN

-

LHR

Nonstop8h 55m

British Airways

Deal found 13/2£560

Mon 20/411:25

LHR

-

DEN

Nonstop9h 50m

Multiple Airlines

Mon 11/517:35

DEN

-

LHR

Nonstop9h 05m

Multiple Airlines

Deal found 14/2£562

Mon 13/411:25

LHR

-

DEN

Nonstop9h 50m

Lufthansa

Thu 30/420:20

DEN

-

LHR

Nonstop9h 00m

Lufthansa

Deal found 13/2£563

Mon 13/411:25

LHR

-

DEN

Nonstop9h 50m

Lufthansa

Mon 27/420:20

DEN

-

LHR

Nonstop9h 00m

Lufthansa

Deal found 16/2£565

Thu 19/312:25

LHR

-

DEN

Nonstop10h 05m

British Airways

Mon 23/318:25

DEN

-

LHR

Nonstop9h 10m

British Airways

Deal found 14/2£568

Mon 20/414:50

LHR

-

DEN

Nonstop9h 55m

Lufthansa

Mon 27/420:20

DEN

-

LHR

Nonstop9h 00m

Lufthansa

Deal found 16/2£573

Tue 10/311:35

LHR

-

DEN

Nonstop9h 55m

Multiple Airlines

Tue 17/318:35

DEN

-

LHR

Nonstop9h 05m

Multiple Airlines

Deal found 14/2£578

Mon 16/311:35

LHR

-

DEN

Nonstop9h 55m

Austrian Airlines

Mon 30/317:35

DEN

-

LHR

Nonstop9h 05m

Austrian Airlines

Deal found 13/2£580

Mon 16/311:35

LHR

-

DEN

Nonstop9h 55m

Multiple Airlines

Mon 30/320:20

DEN

-

LHR

Nonstop9h 00m

Multiple Airlines

Deal found 13/2£581

Best time to book a flight to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver with our price prediction graph.

LON-DEN

LHR-DEN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Fly from

Route

Depart

Return

Price

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 16/3

12:25-16:30

Nonstop10h 05m

Denver Intl

Mon 30/3

18:40-10:35

Nonstop8h 55m

£560

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 20/4

11:25-14:15

Nonstop9h 50m

Denver Intl

Mon 11/5

17:35-09:40

Nonstop9h 05m

£562

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Wed 22/4

11:25-14:15

Nonstop9h 50m

Denver Intl

Mon 27/4

17:35-09:40

Nonstop9h 05m

£581

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 13/4

14:50-17:45

Nonstop9h 55m

Denver Intl

Mon 27/4

20:20-12:20

Nonstop9h 00m

£582

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 13/4

11:25-14:15

Nonstop9h 50m

Denver Intl

Mon 27/4

20:20-12:20

Nonstop9h 00m

£582

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Tue 10/3

11:35-15:30

Nonstop9h 55m

Denver Intl

Tue 24/3

18:35-09:40

Nonstop9h 05m

£590

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 2/3

11:35-14:25

Nonstop9h 50m

Denver Intl

Mon 16/3

18:35-09:40

Nonstop9h 05m

£598

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 30/4

14:50-17:45

Nonstop9h 55m

Denver Intl

Thu 14/5

20:20-12:20

Nonstop9h 00m

£602

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 1/5

11:25-14:15

Nonstop9h 50m

Denver Intl

Wed 6/5

17:35-09:40

Nonstop9h 05m

£602

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Wed 4/3

11:35-14:25

Nonstop9h 50m

Denver Intl

Sun 15/3

18:35-09:40

Nonstop9h 05m

£605

Flights are sorted by cheapest return flights first.

Deals found on 14/2

Showing 1-10 of 21 results

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2

3

Reviews of airlines flying non-stop to Denver

Get a feel of what it's like to fly with Austrian Airlines, United Airlines, andIcelandair to the United States by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Austrian Airlines

7.5

Good

Reviews

1 / 20

2.0

Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

Austrian Airlines

7.5

Good

Austrian Airlines

7.5

Good

Reviews

1 / 20

2.0

Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

United Airlines

7.4

Good

Austrian Airlines

7.5

Good

Reviews

1 / 20

2.0

Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

7.1

Good

Austrian Airlines

7.5

Good

Reviews

1 / 20

2.0

Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

6.8

Okay

Austrian Airlines

7.5

Good

Reviews

1 / 20

2.0

Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

British Airways

6.7

Okay

Austrian Airlines

7.5

Good

Reviews

1 / 20

2.0

Mediocre

Nate,Dec 2025

IAD - GSP

Again, I missed this flight because of the first leg of my journey being delayed by three hours. I hope the people on the flight had a nice flight.

FAQ about direct flights to Denver

How much are direct flights to Denver?
On average, a one-way direct flight to Denver will cost users approximately £1,384. If you're looking for a direct return flight to Denver, you can expect to pay around £1,542.
Which airlines fly direct to Denver?
At the moment, British Airways, Lufthansa, United Airlines, Austrian Airlines, Brussels Airlines, Aer Lingus, Iberia, American Airlines, Finnair offer direct flights to Denver. British Airways is currently the most popular airline that flies direct to Denver.
How long is a direct flight to Denver?
While the flight duration depends heavily on the origin, travellers can expect non-stop flights to Denver to last approximately 9h 40m on average. The quickest direct flight to Denver at this time departs from London Heathrow Airport (9h 40m), while the longest leaves from London Heathrow Airport (9h 40m).
What is the best time of year to fly direct to Denver?
If you're seeking the lowest price on a direct flight to Denver, September is worth consideration, as prices are usually at their lowest, on average. January may be most appealing to users looking for the quietest time to visit Denver, when demand is typically at its lowest.
What is the most popular direct flight origin to Denver?
Currently, the most popular direct flight origin to Denver is London Heathrow Airport. A return direct flight from London Heathrow Airport to Denver typically costs around £1,463.

See more FAQs

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