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Cheap IAD to LHR Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

London

$545.42

$656.77

$662.11

$759.59

Southend-on-Sea

$664.31

Cheap IAD to LHR Flights

Question : What is the cheapest airline flying from Dulles to London?
Answer : Icelandair is the leader in keeping prices low for their passengers over the next three months. Bookings are being made at just $421, which is a bargain when compared to the high-end bookings of $4,867.

Question : Which airline has the least delays from Dulles to London?
Answer : Booking with Virgin Atlantic means you will arrive to London approximately the time you were supposed to. In fact, this timely airline has an 84% average on-time average. It never hurts to be prepared. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.

Question : What is the cheapest day to fly?
Answer : The cheapest day to fly from Dulles to London is on Thursday. If you are trying to save some money on your next flight look for flights on Thursday.

Question : From Dulles to London, which day is going to have the most flight times?
Answer : With 10 total flight time options, Sunday provides the most flexibility from IAD to LHR. Friday currently offers the least amount of flight times with only nine options.

Question : How much is a plane ticket to London (LHR) from Dulles (IAD)?
Answer : Prices range anywhere from $421 to $4,867. Booking far in advance can usually help you get the cheapest price. Prices are usually less the further out you book.

Question : How long does it take to fly from Dulles to London?
Answer : If you're able to take the direct flight (which is offered by British Airways), you will be able to leave IAD at 10:30 PM EST and get to LHR at 10:35 AM GMT (seven hours and five minutes). Remember, there is a time change of five hours.

Question : How long does the average person visit London?
Answer : Of course, you are not an average person, but if you were, you'd stay roughly 11 days.

Washington to London Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Washington to London will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring London.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with IAD to LHR flights that won’t make your bank account wince. Ready to temporarily leave behind Washington for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LHR with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.