Nonstop flight about 9 h 08
London from Denver
Published October 4, 2026 · HolidayWow editors · Written with AI, numbers checked against our data ·
From Denver, a nonstop flight gets you in London in about 9 h 08. You land at London Heathrow Airport (LHR), 15 miles from the destination, after 4,658 miles of flight.
In London, the best time for a trip is June to September, with daytime highs up to 73 °F.
7 days in London in August, Beach and hiking, from Denver on your own
Plan a trip- Flight time from Denver
- about 9 h 08
- Flight distance DEN to LHR
- 4,658 miles
- Nonstop from DEN
- Nonstop flight
- Best time to go
- June to September
Flight times estimated from the distance, nonstop routes according to OpenTravelData.
Start with the distance from Denver
Denver is a strong starting point for a London vacation because the city connects you with major hubs and gives you access to a broad range of travel options. Treat the distance as part of the overall vacation design rather than an afterthought.
LondoniPhoto: Diliff · CC BY-SA 3.0 · Wikimedia Commons
DenveriPhoto: This Photo was taken by Wolfgang Moroder . Feel free to use my photos, but please mention me as the author and send me a · CC BY-SA 3.0 · Wikimedia CommonsA good plan gives the outbound and return travel their own place in the schedule. It also leaves room for recovery after the flight, especially if you are crossing time zones with children or arriving after a full day of travel. HolidayWow can place the airport ride, flight, and transfer to your first stay into the same map based itinerary.
Before selecting a flight, compare the arrival pattern with the kind of first day you want. A morning arrival gives you a full afternoon and evening, while an evening arrival may make a hotel transfer and a calm dinner more comfortable. The page shows current partner flight options and live prices as you build the plan.
LondoniPhoto: Diliff · CC BY-SA 3.0 · Wikimedia CommonsDenveriPhoto: This Photo was taken by Wolfgang Moroder . Feel free to use my photos, but please mention me as the author and send me a · CC BY-SA 3.0 · Wikimedia CommonsChoose London bases by neighborhood
For a first visit, central London offers convenient access to Westminster, the West End, museums, and the River Thames. Staying near a major transit connection can make it easier to shape each day around walking, buses, and the Underground. Choose a base that reflects your pace, since London rewards travelers who leave time for spontaneous turns.
South Bank visitors can pair river walks with attractions around the Southbank, while the West End works well for theater, restaurants, and evening entertainment. Bloomsbury suits travelers who enjoy museums and leafy streets. Richmond and other outer areas can add a calmer London experience when you want parks, local food, and a change of scenery.
HolidayWow helps you place each stay on a map and connect it to the surrounding days. You can move a stop to another day, exchange a place, or choose a relaxed, balanced, or packed pace. That flexibility makes it easier to keep a first trip varied while respecting the time involved in getting around a large city.
Match the month to London weather
London has a changeable climate, so the month affects what you can comfortably plan outdoors. April offers a mild daily high of 57 °F, 6 sunshine hours, and 9 rain days. May and June bring warmer afternoons, with highs of 63 °F and 69 °F, making them comfortable for long walks and riverside sightseeing.
RainiPhoto: Ermell · CC BY-SA 4.0 · Wikimedia CommonsJuly and August reach 73 °F during the day, with 7 sunshine hours in July and 6 in August. These are useful months for pairing indoor museums with outdoor afternoons, while a light layer remains useful for evenings. September cools to 68 °F and offers 5 sunshine hours, giving you a comfortable middle ground for sightseeing.
The data part of this page provides the month by month climate picture, including temperature, sunshine, and rain. Use it as planning guidance, not as a forecast. HolidayWow also supports live weather on dated day cards, so you can add dates later and check the conditions relevant to the day you are exploring.
RainiPhoto: Ermell · CC BY-SA 4.0 · Wikimedia CommonsFrom Denver to London
London lies {{dist.home:DEN}} from Denver in a straight line. Atlanta lies {{dist.home:ATL}} away. Los Angeles lies {{dist.home:LAX}} away. From Denver, the months that pay off most are June, July, August and September.
Los AngelesiPhoto: Tuxyso · CC BY-SA 3.0 · Wikimedia Commons
ChicagoiPhoto: Daniel Schwen · CC BY-SA 4.0 · Wikimedia CommonsChicago lies {{dist.home:ORD}} away. Dallas lies {{dist.home:DFW}} away. Door to door, the plan lines up the ride to the airport, the flight with live fares and the transfer on arrival.
Los AngelesiPhoto: Tuxyso · CC BY-SA 3.0 · Wikimedia CommonsChicagoiPhoto: Daniel Schwen · CC BY-SA 4.0 · Wikimedia Commons
Airports at the destination
Your nonstop flight from Denver lands at London Heathrow Airport (LHR), 15 miles from the destination.
- LHRLondon Heathrow Airport15 miles to the destination, about 9 h 08 from DEN, 4,658 miles of flightNonstop
- LCYLondon City Airport8 miles to the destination, about 9 h 10 from DEN, 4,675 miles of flight
- LGWLondon Gatwick Airport25 miles to the destination, about 9 h 10 from DEN, 4,681 miles of flight
Best time to travel in London
In London, the best time for a trip is June to September, with daytime highs up to 73 °F.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °F | 44 | 47 | 51 | 57 | 63 | 69 | 73 | 73 | 68 | 60 | 51 | 46 |
| Night °F | 34 | 35 | 37 | 40 | 45 | 51 | 55 | 55 | 51 | 46 | 40 | 37 |
| Sun h/day | 2 | 3 | 5 | 6 | 7 | 7 | 7 | 6 | 5 | 3 | 2 | 2 |
| Rain days | 14 | 12 | 11 | 9 | 11 | 11 | 12 | 11 | 10 | 13 | 14 | 14 |
The best months for London
Daytime highs range from 44 °F in January to 73 °F in July. Rain is rarest in April (9 days) and most frequent in January (14 days). The sunniest month is May with 7 hours a day.
For walking and sightseeing in pleasant warmth, aim for June, July, August and September.
- January: 44 °F, 14 rain days, 2 h of sun
- February: 47 °F, 12 rain days, 3 h of sun
- March: 51 °F, 11 rain days, 5 h of sun
- April: 57 °F, 9 rain days, 6 h of sun
- May: 63 °F, 11 rain days, 7 h of sun
- June: 69 °F, 11 rain days, 7 h of sun
- July: 73 °F, 12 rain days, 7 h of sun
- August: 73 °F, 11 rain days, 6 h of sun
- September: 68 °F, 10 rain days, 5 h of sun
- October: 60 °F, 13 rain days, 3 h of sun
- November: 51 °F, 14 rain days, 2 h of sun
- December: 46 °F, 14 rain days, 2 h of sun
When people plan trips to London
Search interest for London peaks in May and is lowest in November, based on monthly search volumes.
How to shape a June day in London
Mornings suit an unhurried walk through the old streets or along the water. The warmest hours, at 69 °F, are perfect for being outside. Evenings drop to 51 °F, so plan dinner somewhere warm and keep a layer handy.
Packing for London in July
With 73 °F by day and 55 °F at night and 12 rain days in July, pack for changeable mild weather. Your plan builds this list for you and updates it when you change the dates.
- Comfortable walking shoes
- A warm layer for the evenings
- A packable rain jacket or umbrella
- A travel adapter for your chargers
Weather in London month by month
- January44 °F
- February47 °F
- March51 °F
- April57 °F
- May63 °F
- June69 °F
- July73 °F
- August73 °F
- September68 °F
- October60 °F
- November51 °F
- December46 °F
Nonstop flights in London from other airports
Besides Denver, nonstop flights in London leave from 11 other airports; the closest to Denver is Dallas/Fort Worth, with a flight time of about 9 h 17.
- DENLondon from Denverabout 9 h 08 to LHR, nonstop
- DFWLondon from Dallas/Fort Worthabout 9 h 17 to LHR, nonstop
- LAXLondon from Los Angelesabout 10 h 34 to LHR, nonstop
- ORDLondon from Chicago O'Hareabout 7 h 49 to LHR, nonstop
- SFOLondon from San Franciscoabout 10 h 24 to LHR, nonstop
- SEALondon from Seattleabout 9 h 22 to LHR, nonstop
- ATLLondon from Atlantaabout 8 h 18 to LHR, nonstop
- MCOLondon from Orlandoabout 8 h 33 to LGW, nonstop
- EWRLondon from Newarkabout 6 h 56 to LHR, nonstop
- JFKLondon from New York JFKabout 6 h 55 to LHR, nonstop
- MIALondon from Miamiabout 8 h 41 to LHR, nonstop
- BOSLondon from Bostonabout 6 h 34 to LHR, nonstop
Flight times estimated from the distance, nonstop routes according to OpenTravelData.
Prices for London
Every price for London on this page comes live from a partner, in your currency. Open a card to see today's rate for your dates.
Shape a three day or seven day London trip
For a three day visit, begin with Westminster, the London Eye area, and a walk along the Thames. Use the second day for a museum and a nearby neighborhood such as Bloomsbury or South Kensington. Save the final day for a flexible combination of shopping, theater, a park, and a return journey that matches your flight schedule.
A seven day trip allows more breathing room. Add Richmond Park for open space and skyline views, the West End for an evening performance, and a day devoted to a specific interest such as art, history, or food. Keep one day lighter so the trip includes a natural rhythm instead of a constant sequence of transfers and reservations.
HolidayWow reads a trip described in one sentence, including the destination, month, group, pace, and budget. Every day then appears as a route on the map, with stops and travel legs visible. You can ask the side panel assistant to change a day, lighten the schedule, or swap a stop while keeping the whole plan connected.
Plan meals, museums, and river days
London rewards a mix of famous sights and smaller neighborhood stops. Build a day around one major attraction, then leave room for a market, a park, or a meal in a local area. The British Museum, Tate Modern, the National Gallery, and the Tower of London each work well as anchors, depending on your interests and the pace you want.
A Thames day can connect Westminster, London Bridge, Tower Bridge, and a riverside meal. Another day may combine a museum with Covent Garden, Soho, or a walk through Bloomsbury. The best arrangement accounts for opening plans, walking energy, and the fact that London neighborhoods reward attention at street level.
Add meals, tours, transport, and stays to the HolidayWow plan. Partner links show live prices in your language and currency, while the plan checker reorders a day after edits. You can also use the packing list and document vault to keep practical trip information together with the itinerary.
Compare the trip with your US planning habits
For travelers based near Denver, London works well as a city vacation because the main attractions sit within a connected urban area. A US PTO planner can help turn public holidays, school breaks, Thanksgiving, Christmas break, or typical vacation days into a practical travel window. The planner uses the leave patterns that fit your market.
Spring break and summer vacation are natural choices for families, while couples may prefer a balanced city break with theater, museums, and evening dining. A group can use shared plans, comments, and voting to settle neighborhoods, day plans, and bookings before departure. The same link can keep everyone looking at the same route.
HolidayWow is free to download and plan with. Add dates when your schedule is ready, or begin with the month and refine the route later. The map first format gives you a clear overview of the flight, bases, stops, and daily movement without requiring the trip to be fixed before you begin.
London from Denver: frequently asked questions
How far is London from Denver?
That distance makes it important to plan the first and last days with extra care. HolidayWow places the airport ride, flight, and transfer to your first stay into the overall map based itinerary.
What is the best month for a Denver to London trip?
The best month depends on the mix of sightseeing, parks, shopping, and indoor activities you want. May, June, and September offer comfortable walking weather, while July and August are warmer. The climate data on this page helps you compare temperature, sunshine, and rain by month.
Can I edit a London itinerary after I start planning?
Yes. HolidayWow lets you drag a stop to another day, swap a place, or make a day lighter. The plan checker reorders the day after each change, so the route and daily cards remain connected to the trip you are building.
How does HolidayWow help with flights from Denver?
You describe the London trip in one sentence or by voice, and the planner reads the place, month, group, pace, and budget. Current partner flight options and live prices appear in the plan, with booking links available in your language and currency.
Can a group share a Denver to London vacation plan?
Yes. One link opens the same plan for everyone, with viewing and editing roles. Group members can vote and comment on selected plans, while the document vault keeps passports, tickets, and confirmations with the trip they belong to.
Plan your trip in London from Denver
Describe your trip in one sentence. When, who with and what matters to you.
