Cheap flights from London Heathrow Airport to Washington, D.C. Dulles Intl Airport from £307
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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IAD
19 Feb — 26 Feb1
Return
1 adult
Economy
The best prices from London Heathrow to Washington, D.C. Dulles Intl are usually found in February or November, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Heathrow to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Dulles Intl (IAD). 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 14 February 2025.
Explore the most affordable flight options available from Heathrow to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 February 2025.
Sat 1/312:05LHR - IAD
Nonstop8h 40mAustrian Airlines
Sat 1/317:45IAD - LHR
1 stop38h 45mAustrian Airlines
Deal found 13/2£423
Sat 8/306:30LHR - IAD
1 stop13h 10mLufthansa
Sat 8/322:20IAD - LHR
2 stops29h 10mLufthansa
Deal found 13/2£426
Fri 28/219:30LHR - IAD
1 stop25h 10mScandinavian Airlines
Mon 3/317:10IAD - LHR
2 stops18h 15mScandinavian Airlines
Deal found 13/2£452
Fri 28/220:40LHR - IAD
1 stop26h 45mIcelandair
Tue 4/319:40IAD - LHR
1 stop10h 10mIcelandair
Deal found 13/2£462
Thu 13/306:00LHR - IAD
1 stop13h 35mMultiple Airlines
Thu 20/321:45IAD - LHR
1 stop11h 15mMultiple Airlines
Deal found 13/2£489
Fri 28/209:00LHR - IAD
1 stop12h 15mVirgin Atlantic
Tue 4/318:25IAD - LHR
Nonstop7h 30mVirgin Atlantic
Deal found 13/2£521
Wed 12/306:30LHR - IAD
2 stops31h 16mUnited Airlines
Wed 19/315:55IAD - LHR
1 stop11h 15mUnited Airlines
Deal found 12/2£522
Fri 28/207:50LHR - IAD
1 stop12h 50mAer Lingus
Fri 9/520:25IAD - LHR
1 stop9h 50mAer Lingus
Deal found 13/2£526
Mon 17/218:30LHR - IAD
1 stop25h 00mTAP AIR PORTUGAL
Sun 23/222:30IAD - LHR
1 stop18h 05mTAP AIR PORTUGAL
Deal found 13/2£529
Mon 28/406:00LHR - IAD
1 stop15h 15mSWISS
Tue 6/520:45IAD - LHR
1 stop11h 15mSWISS
Deal found 13/2£536
Fri 28/212:25LHR - IAD
Nonstop8h 40mAir France
Mon 3/321:20IAD - LHR
Nonstop7h 10mAir France
Deal found 13/2£545
Wed 19/208:40LHR - IAD
1 stop12h 05mDelta
Thu 27/220:40IAD - LHR
Nonstop7h 30mDelta
Deal found 12/2£552
Best flights from Heathrow to Dulles Intl
Discover carefully curated flight deals from Heathrow to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 February 2025.
Sat 8/312:05LHR - IAD
Nonstop8h 35mLufthansa
Sat 8/322:20IAD - LHR
1 stop17h 15mLufthansa
Deal found 12/2£419
Sat 1/312:05LHR - IAD
Nonstop8h 40mAustrian Airlines
Sat 1/317:45IAD - LHR
1 stop38h 45mAustrian Airlines
Deal found 13/2£423
Thu 27/219:30LHR - IAD
1 stop25h 10mScandinavian Airlines
Mon 3/317:10IAD - LHR
1 stop11h 10mScandinavian Airlines
Deal found 12/2£450
Fri 28/220:40LHR - IAD
1 stop26h 45mIcelandair
Tue 4/319:40IAD - LHR
1 stop10h 10mIcelandair
Deal found 13/2£462
Tue 25/208:50LHR - IAD
2 stops14h 35mMultiple Airlines
Tue 4/319:40IAD - LHR
2 stops19h 10mMultiple Airlines
Deal found 11/2£490
Fri 28/206:30LHR - IAD
2 stops32h 16mUnited Airlines
Thu 20/306:00IAD - LHR
1 stop10h 35mUnited Airlines
Deal found 12/2£520
Fri 28/209:00LHR - IAD
1 stop12h 15mVirgin Atlantic
Tue 4/318:25IAD - LHR
Nonstop7h 30mVirgin Atlantic
Deal found 13/2£521
Sat 22/208:50LHR - IAD
1 stop11h 50mAer Lingus
Tue 18/318:10IAD - LHR
1 stop10h 55mAer Lingus
Deal found 11/2£525
Fri 28/206:00LHR - IAD
1 stop15h 25mSWISS
Tue 4/320:45IAD - LHR
1 stop14h 35mSWISS
Deal found 13/2£531
Thu 1/514:30LHR - IAD
Nonstop8h 05mBritish Airways
Thu 8/517:50IAD - LHR
Nonstop7h 25mBritish Airways
Deal found 12/2£540
Tue 4/306:50LHR - IAD
2 stops13h 23mAir Canada
Tue 11/312:37IAD - LHR
2 stops14h 33mAir Canada
Deal found 11/2£542
Fri 28/212:25LHR - IAD
Nonstop8h 40mAir France
Mon 3/321:20IAD - LHR
Nonstop7h 10mAir France
Deal found 13/2£545
Direct flights from Heathrow to Dulles Intl
Explore direct flight options from Heathrow to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 February 2025.
Fri 28/212:25LHR - IAD
Nonstop8h 40mVirgin Atlantic
Tue 4/318:25IAD - LHR
Nonstop7h 30mVirgin Atlantic
Deal found 13/2£523
Sat 8/312:05LHR - IAD
Nonstop8h 35mLufthansa
Sun 16/323:50IAD - LHR
Nonstop7h 15mLufthansa
Deal found 12/2£533
Thu 1/514:30LHR - IAD
Nonstop8h 05mBritish Airways
Wed 7/519:25IAD - LHR
Nonstop7h 20mBritish Airways
Deal found 13/2£541
Fri 28/212:25LHR - IAD
Nonstop8h 40mAir France
Mon 3/321:20IAD - LHR
Nonstop7h 10mAir France
Deal found 13/2£545
Fri 28/212:05LHR - IAD
Nonstop8h 40mMultiple Airlines
Tue 4/318:25IAD - LHR
Nonstop7h 15mMultiple Airlines
Deal found 13/2£557
Mon 24/212:05LHR - IAD
Nonstop8h 40mUnited Airlines
Mon 24/319:25IAD - LHR
Nonstop7h 15mUnited Airlines
Deal found 13/2£557
Mon 12/512:45LHR - IAD
Nonstop8h 30mDelta
Wed 21/518:10IAD - LHR
Nonstop7h 35mDelta
Deal found 13/2£594
Wed 14/516:40LHR - IAD
Nonstop8h 10mAustrian Airlines
Wed 21/522:15IAD - LHR
Nonstop7h 25mAustrian Airlines
Deal found 13/2£617
Mon 12/512:45LHR - IAD
Nonstop8h 05mAmerican Airlines
Fri 23/519:25IAD - LHR
Nonstop7h 20mAmerican Airlines
Deal found 13/2£637
Wed 14/517:00LHR - IAD
Nonstop8h 10mFinnair
Thu 22/522:40IAD - LHR
Nonstop7h 25mFinnair
Deal found 13/2£641
Thu 22/512:45LHR - IAD
Nonstop8h 05mIberia
Sat 31/522:45IAD - LHR
Nonstop7h 25mIberia
Deal found 13/2£783
Last-minute flights from Heathrow to Dulles Intl
Discover last-minute flight deals from Heathrow to Dulles Intl. Data last updated 14 February 2025 and is based on user searches.
Mon 17/218:30LHR - IAD
1 stop25h 00mTAP AIR PORTUGAL
Sun 23/222:30IAD - LHR
1 stop18h 05mTAP AIR PORTUGAL
Deal found 13/2£529
Tue 18/211:10LHR - IAD
1 stop15h 13mAir Canada
Tue 25/212:50IAD - LHR
2 stops13h 20mAir Canada
Deal found 11/2£564
Tue 18/206:00LHR - IAD
1 stop13h 30mTAP AIR PORTUGAL
Sat 22/217:30IAD - LHR
1 stop14h 10mTAP AIR PORTUGAL
Deal found 13/2£577
Wed 19/206:30LHR - IAD
2 stops32h 16mUnited Airlines
Fri 21/306:00IAD - LHR
1 stop10h 35mUnited Airlines
Deal found 12/2£520
Wed 19/206:30LHR - IAD
1 stop14h 15mKLM
Fri 21/319:45IAD - LHR
Nonstop7h 30mKLM
Deal found 12/2£529
Wed 19/208:40LHR - IAD
1 stop12h 05mDelta
Thu 27/220:40IAD - LHR
Nonstop7h 30mDelta
Deal found 12/2£552
Wed 19/215:00LHR - IAD
2 stops23h 46mLufthansa
Fri 21/310:35IAD - LHR
2 stops16h 35mLufthansa
Deal found 12/2£561
Thu 20/219:30LHR - IAD
1 stop25h 10mScandinavian Airlines
Sun 30/318:50IAD - LHR
1 stop16h 10mScandinavian Airlines
Deal found 12/2£473
Thu 20/209:00LHR - IAD
1 stop12h 15mVirgin Atlantic
Sun 30/318:10IAD - LHR
Nonstop7h 35mVirgin Atlantic
Deal found 13/2£524
Thu 20/206:50LHR - IAD
1 stop12h 45mMultiple Airlines
Sun 23/218:25IAD - LHR
Nonstop7h 15mMultiple Airlines
Deal found 12/2£527
Thu 20/213:15LHR - IAD
Nonstop8h 40mAir France
Sun 30/318:10IAD - LHR
Nonstop7h 35mAir France
Deal found 12/2£546
Sat 22/208:50LHR - IAD
1 stop11h 50mAer Lingus
Tue 18/318:10IAD - LHR
1 stop10h 55mAer Lingus
Deal found 11/2£525
One-way flights from Heathrow to Dulles Intl
Search for one-way flight options from Heathrow to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 14 February 2025.
Tue 22/420:50LHR - IAD
3 stops27h 15mMultiple Airlines
Deal found 13/2£307
Tue 18/312:15LHR - IAD
1 stop11h 10mIcelandair
Deal found 12/2£428
Mon 24/309:50LHR - IAD
1 stop10h 50mAer Lingus
Deal found 13/2£440
Mon 17/218:30LHR - IAD
1 stop25h 00mTAP AIR PORTUGAL
Deal found 12/2£465
Sat 29/306:40LHR - IAD
1 stop14h 00mScandinavian Airlines
Deal found 13/2£465
Sat 5/418:50LHR - IAD
1 stop29h 15mRoyal Air Maroc
Deal found 12/2£525
Tue 18/314:50LHR - IAD
2 stops32h 53mWestJet
Deal found 12/2£529
Find flights from Heathrow to Dulles Intl within your budget
Customise your flight search to find flights from Heathrow to Dulles Intl 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 858,174 searches. Data last updated 14 February 2025.