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The cheapest flights to Heathrow found within the past 7 days were $524 round trip and $274 one way. Prices and availability subject to change. Additional terms may apply.
Carrier | Flight | Depart IAD | Arrive LHR | Mon 1/25 |
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Thu 1/28 |
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Stops | |
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{"day":25, "month": 1, "year": 2021} |
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BA 292 | 10:35 pm | 10:40 am | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | 0 stop(s) |
British Airways and United Airlines are among the airlines that sell direct flights from Washington, DC (IAD-Washington Dulles Intl.) to London (LHR-Heathrow). If you're eager to get to where you're headed fast, these might be just the ticket.
For more info about changing your flight to London (LHR-Heathrow), please visit our Customer Service Portal.
If you're traveling from Washington, DC (IAD-Washington Dulles Intl.) to London (LHR-Heathrow), you can expect the journey to take about 8 hours and 32 minutes. If this is longer than you had hoped, why not put it to good use? Read up on where you're headed, fine tune your itinerary and get as much sleep as possible before the adventure starts.
With 4,101 mi separating Washington, DC (IAD-Washington Dulles Intl.) and London (LHR-Heathrow), you'll have more than enough time to relax. Make use of the entertainment on board, write in your journal or catch up on some shut-eye.
There are several airlines that offer direct flights from Washington, DC (IAD-Washington Dulles Intl.) to London (LHR-Heathrow). British Airways (BA) is well-known, offering around 40 flights each month. If that's not enough for you, check out the deals on offer from United Airlines (UA). This airline has 58 flights each month. Between the two, there's no doubt you'll find the flight to suit your needs.
This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.
We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.
*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.
Traveling From | Washington Dulles Intl. |
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Traveling To | Heathrow |
Shortest Flight Time | 17 hours 5 mins |
Earliest Departure Time | 10:45PM GMT |
Latest Departure Time | 10:45PM GMT |
Lowest Flight Price | $524 |
Flight path for flights from Washington Dulles International Airport to London Heathrow Airport
Airlines & Aircraft Used on IAD to LHR Flight Routes
Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington (IAD) today with the cheap prices from Travelocity!
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