Find flights
Deals
Airlines

£378+ Direct flights to Denver

This is the cheapest price on a non-stop flight to Denver found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
— DEN
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Find flight deals to Denver

Enter your travel dates to find the best prices.

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 28 January 2026.

Wed 11/211:35
LHR
-
DEN
Nonstop9h 50m
Lufthansa
Mon 23/217:35
DEN
-
LHR
Nonstop9h 05m
Lufthansa
Deal found 25/1£434
Thu 12/211:35
LHR
-
DEN
Nonstop9h 50m
Austrian Airlines
Sun 22/217:35
DEN
-
LHR
Nonstop9h 05m
Austrian Airlines
Deal found 27/1£435
Fri 13/211:35
LHR
-
DEN
Nonstop9h 50m
Austrian Airlines
Mon 2/317:35
DEN
-
LHR
Nonstop9h 05m
Austrian Airlines
Deal found 27/1£439
Wed 25/211:35
LHR
-
DEN
Nonstop9h 50m
Multiple Airlines
Mon 2/317:35
DEN
-
LHR
Nonstop9h 05m
Multiple Airlines
Deal found 24/1£440
Mon 9/211:35
LHR
-
DEN
Nonstop9h 50m
Multiple Airlines
Thu 19/217:35
DEN
-
LHR
Nonstop9h 05m
Multiple Airlines
Deal found 26/1£441
Wed 4/311:35
LHR
-
DEN
Nonstop9h 50m
Multiple Airlines
Tue 10/318:35
DEN
-
LHR
Nonstop9h 05m
Multiple Airlines
Deal found 26/1£443
Fri 17/413:35
LHR
-
DEN
Nonstop9h 55m
British Airways
Sun 19/418:40
DEN
-
LHR
Nonstop8h 55m
British Airways
Deal found 25/1£444
Thu 23/414:50
LHR
-
DEN
Nonstop9h 55m
Multiple Airlines
Sun 26/417:35
DEN
-
LHR
Nonstop9h 05m
Multiple Airlines
Deal found 26/1£445
Fri 6/311:35
LHR
-
DEN
Nonstop9h 50m
Lufthansa
Tue 10/318:35
DEN
-
LHR
Nonstop9h 05m
Lufthansa
Deal found 26/1£446
Thu 12/211:35
LHR
-
DEN
Nonstop9h 50m
United Airlines
Sun 22/217:35
DEN
-
LHR
Nonstop9h 05m
United Airlines
Deal found 25/1£447
Fri 27/211:35
LHR
-
DEN
Nonstop9h 50m
United Airlines
Mon 9/318:35
DEN
-
LHR
Nonstop9h 05m
United Airlines
Deal found 26/1£448

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.
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.

Cheapflights Fare Finder

 
Use the slider to find non-stop flights to Denver within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 858,174 searches and data was last updated on 28 January 2026.
Use the filters below to find and compare direct flights to Denver that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 12/2

11:35-14:25

Nonstop9h 50m

Denver Intl

Sun 22/2

17:35-09:40

Nonstop9h 05m

£447

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 5/3

11:35-14:25

Nonstop9h 50m

Denver Intl

Mon 9/3

18:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Fri 27/2

11:35-14:25

Nonstop9h 50m

Denver Intl

Thu 5/3

17:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Tue 3/3

11:35-14:25

Nonstop9h 50m

Denver Intl

Mon 9/3

18:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 2/3

11:35-14:25

Nonstop9h 50m

Denver Intl

Mon 9/3

18:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Tue 3/3

11:35-14:25

Nonstop9h 50m

Denver Intl

Tue 10/3

18:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 23/2

11:35-14:25

Nonstop9h 50m

Denver Intl

Mon 2/3

17:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Wed 4/3

11:35-14:25

Nonstop9h 50m

Denver Intl

Tue 10/3

18:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Mon 23/2

11:35-14:25

Nonstop9h 50m

Denver Intl

Tue 3/3

17:35-09:40

Nonstop9h 05m

£448

LondonDenver

LHR - DEN

LHRDEN

London Heathrow

Thu 26/2

11:35-14:25

Nonstop9h 50m

Denver Intl

Mon 9/3

18:35-09:40

Nonstop9h 05m

£448

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Showing 1-10 of 20 results
1
2

Reviews of airlines flying non-stop to Denver

Get insights into the airlines that provide direct flights to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated 28 January 2026.
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
895 reviews
Check prices

Crew

8.1

Food

6.8

Entertainment

6.8

Overall

7.5

Boarding

7.6

Comfort

7.3

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
895 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Crew

8.1

Food

6.8

Entertainment

6.8

Overall

7.5

Boarding

7.6

Comfort

7.3

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
9,209 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Crew

8.1

Food

6.8

Entertainment

6.8

Overall

7.5

Boarding

7.6

Comfort

7.3

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.
Icelandair
7.1
Good
603 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Crew

8.1

Food

6.8

Entertainment

6.8

Overall

7.5

Boarding

7.6

Comfort

7.3

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.
Lufthansa
6.8
Okay
7,749 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Crew

8.1

Food

6.8

Entertainment

6.8

Overall

7.5

Boarding

7.6

Comfort

7.3

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
7,704 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Crew

8.1

Food

6.8

Entertainment

6.8

Overall

7.5

Boarding

7.6

Comfort

7.3

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

Find answers to frequently asked questions about direct flights to Denver to unlock the best deals on Cheapflights.

  • How much are direct flights to Denver?

    On average, a one-way direct flight to Denver will cost users approximately £1,273. If you're looking for a direct return flight to Denver, you can expect to pay around £1,184.

  • Which airlines fly direct to Denver?

    At the moment, British Airways, Lufthansa, United Airlines, Austrian Airlines, Brussels Airlines, Iberia, Aer Lingus, 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, February 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 £1,220.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Direct flights to United States

Book a non-stop flight to one of these popular destinations located in United States.
Direct flights to New York
Direct flights to Orlando
Direct flights to Los Angeles
Direct flights to Miami
Direct flights to Las Vegas
Direct flights to Boston
Direct flights to San Francisco
Direct flights to Chicago
Direct flights to Dallas
Direct flights to Washington, D.C.
Direct flights to Atlanta
Direct flights to Houston
Direct flights to Nashville
Direct flights to Tampa
Direct flights to Seattle
Direct flights to Detroit
Direct flights to Philadelphia
Direct flights to Charlotte
Direct flights to Phoenix
Direct flights to Austin
Direct flights to Minneapolis
Direct flights to Fort Lauderdale
Direct flights to San Diego
Direct flights to Raleigh
Direct flights to New Orleans
Direct flights to Salt Lake City
Direct flights to Portland
Direct flights to Cincinnati
Direct flights to Pittsburgh
Direct flights to San Jose

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.