Dulles to London (IAD–LHR) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
IAD–LHR is served by 3 airlines with nonstop service. British Airways, United Airlines and Virgin Atlantic lead the route. The flight covers 3,668 miles in approximately 6h 10m. Beyond nonstop, 101 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| BA British Airways Also: AY, EI, IB | 21 | 777, 77W | 7h25-7h45 | Oneworld | AY, EI, IB | |
| UA United Airlines Also: CM, LX, OS | 14 | 763, 777 | 7h30-7h48 | Star Alliance | CM, LX, OS | |
| VS Virgin Atlantic | 7 | 789 | 7h25 | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach London from Dulles
| Metric | IAD→LHR | BWI→LHR |
|---|---|---|
| Distance from IAD | – | 45 mi |
| Nonstop airlines | 3 | 3 |
| Weekly flights | 98 | 15 |
| Flight time | 6h 10m | 6h 33m |
| Departure OTP | 92% | – |
Travel Essentials
IAD: EDT · LHR: BST
When it's 6:00 PM in Dulles, it's 11:00 PM in London.
US citizens need a UK Electronic Travel Authorisation (ETA) before travel, applied for online. The ETA costs GBP 10 and is valid for multiple entries over 2 years. Stays are permitted for up to 6 months per visit. Passport must be valid for the duration of stay.
Declare goods over GBP 390 in value. UK duty-free allowances apply on goods from outside the UK.
WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).
Heathrow Express runs every 15 minutes to Paddington (15 min, £25). Piccadilly line is slower (50–60 min) but £5.50 with Oyster. National Express coaches serve all terminals from Victoria (60–90 min, £6–10). Black cabs cost £50–90 to central London depending on traffic and time of day.
Mild maritime climate. Summers average 18–23°C with long daylight hours. Winters are 2–7°C, rarely below freezing. Rain is frequent year-round but rarely heavy. Pack layers and a waterproof jacket regardless of season. Fog can disrupt flights November through February.
IAD–LHR Quick Facts
Frequently Asked Questions
Flights from IAD to LHR
Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR) are connected by nonstop service from British Airways, United Airlines and Virgin Atlantic. With 98 weekly departures, this is a heavily served route.
IAD to LHR Flight Duration and Schedule
Nonstop flight time from IAD to LHR ranges from 6 hours 10 minutes to 7 hours 48 minutes. The route covers a distance of 3,668 miles (5,902 km). There are approximately 98 weekly flights outbound and 126 return, totaling 224 flights per week in both directions.
Connecting Options and Alternatives
101 one-stop connections are available, with the fastest taking approximately 8 hours via ORY. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Baltimore (BWI).