London

$190+ Cheap flights from Dulles Intl (IAD) to London (LON)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LON
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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The best prices from Washington, D.C. Dulles Intl to London are usually found in January or October, booked 21 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Dulles Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 31, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

January

Round-trip from

$337
(PLAY)

One-way from

$190
(Ovago)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-London (LON) flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-London (LON) flights.
High demand for flights, 30% potential price rise
Best time to find cheap flights, 15% potential price drop
From Washington, D.C. Dulles Intl to London (LON)
One-way flight from Washington, D.C. Dulles Intl to London (LON)

Find flight deals from Dulles Intl to London

Cheapest flights from Dulles Intl to London
Explore the most affordable flight options available from Dulles Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This oojo deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/115:10 pmIAD - LHR
2 stops14h 45mScandinavian Airlines
Thu 11/216:40 amLHR - IAD
1 stop14h 00mScandinavian Airlines
Deal found 10/30$565
This Cheapflightsfares deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/167:40 pmIAD - LGW
1 stop10h 15mIcelandair
Sat 1/1811:55 amLGW - IAD
1 stop11h 30mIcelandair
Deal found 10/30$566
This PLAY deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/146:10 pmIAD - LTN
1 stop15h 00mMultiple Airlines
Tue 11/197:00 amLTN - IAD
1 stop15h 00mMultiple Airlines
Deal found 10/30$567
This oojo deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/110:30 pmIAD - LGW
1 stop12h 15mTAP AIR PORTUGAL
Sun 12/810:40 amLGW - IAD
1 stop31h 20mTAP AIR PORTUGAL
Deal found 10/31$568
This Gotogate deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/147:40 pmIAD - LHR
1 stop18h 50mIcelandair
Sun 11/178:40 pmLHR - IAD
1 stop26h 45mIcelandair
Deal found 10/30$569
This PLAY deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/56:10 pmIAD - STN
1 stop10h 50mPLAY
Sat 11/1611:00 amSTN - IAD
1 stop11h 00mPLAY
Deal found 10/31$570
This easyJet worldwide deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure easyJet worldwide is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/146:10 pmIAD - LGW
1 stop23h 55mMultiple Airlines
Wed 11/201:55 pmLGW - IAD
1 stop32h 05mMultiple Airlines
Deal found 10/31$571
This oojo deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/35:30 pmIAD - LHR
1 stop24h 10mTAP AIR PORTUGAL
Thu 12/54:30 pmLHR - IAD
1 stop33h 30mTAP AIR PORTUGAL
Deal found 10/30$580
This Kiwi.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/185:10 pmIAD - STN
1 stop17h 45mMultiple Airlines
Thu 12/56:30 amSTN - IAD
1 stop14h 10mMultiple Airlines
Deal found 10/31$590
This Mytrip deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/176:10 pmIAD - LHR
3 stops32h 45mMultiple Airlines
Tue 11/266:20 amLHR - IAD
2 stops15h 40mMultiple Airlines
Deal found 10/31$600
This Booking.com deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:45 pmIAD - LHR
Nonstop7h 30mVirgin Atlantic
Mon 12/911:45 amLHR - IAD
1 stop33h 00mVirgin Atlantic
Deal found 10/31$603
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1510:30 pmIAD - LHR
Nonstop7h 35mUnited Airlines
Sun 11/179:00 amLHR - IAD
1 stop34h 55mUnited Airlines
Deal found 10/30$609

Find flights from Dulles Intl to London within your budget

Customize your flight search to find flights from Dulles Intl to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.

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