International route
Cheap flights from London to Washington
London Heathrow Airport (LHR) to Ronald Reagan Washington National Airport (DCA). 3,655 miles, 7h 45m nonstop.
LHR to DCA at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 3,655 milesgreat-circle
- Typical flight time
- 7h 45mnonstop, gate to gate
- Nonstop airlines
- AABAVS3 airlinesAmerican, British Airways, Virgin Atlantic
- Nonstop flights per day
- 3all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Wednesday17% less than Sunday
- Time difference
- 5h behindWashington vs London
London to Washington
Round trips from $351
Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 13.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppLondon to Washington fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying London to Washington
3 airlines fly nonstop with 3 departures a day combined, plus 11 more with one stop.
- AAAmerican AirlinesoneworldNonstop · 1 flight a day · first checked bag from $40
- BABritish AirwaysoneworldNonstop · 1 flight a day · first checked bag from $75
- VSVirgin AtlanticSkyTeamNonstop · 1 flight a day · first checked bag from $75
- EIAer LingusConnecting via DUB, SNN · first checked bag from $70
- ACAir CanadaStar AllianceConnecting via YUL · first checked bag from $35
- AFAir FranceSkyTeamConnecting via ORY · first checked bag from $75
- DLDelta Air LinesSkyTeamConnecting via ATL, MSP, DTW, JFK, BOS, LGA · first checked bag from $35
- IBIberiaoneworldConnecting via MAD · first checked bag from $70
- AZITA AirwaysConnecting via FCO, MXP · first checked bag from $70
- B6JetBlueConnecting via JFK, BOS, MCO, SJU · first checked bag from $40
- SKSAS Scandinavian AirlinesSkyTeamConnecting via CPH · first checked bag from $70
- TPTAP Air PortugalStar AllianceConnecting via LIS · first checked bag from $70
- UAUnited AirlinesStar AllianceConnecting via ORD · first checked bag from $40
- WSWestJetConnecting via YYZ · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- New York (JFK)DLB62 airlines
- Boston (BOS)DLB62 airlines
- Atlanta (ATL)DL1 airline
- Minneapolis (MSP)DL1 airline
- Detroit (DTW)DL1 airline
Which airport should I use?
London has 3 airports and Washington has 3 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Other departure airports near London
Tips for this route
- American, British and Virgin Atlantic all fly LHR to DCA nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $351; September 2026 is the most expensive at $463 and up, a difference of $112 per traveler.
- Departing on a Wednesday averages 17% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
- Washington is 5 hours behind London. A morning departure lands in Washington with most of the day left; an evening flight arrives close to local dinner time.
Destination guide
Washington: Free museums and the monuments at your feet
Washington, DC is one of the best-value city breaks in the country: the Smithsonian museums and monuments are free, the Metro reaches all three airports, and competition between Reagan National, Dulles and Baltimore keeps fares low.
Best time to visit: Late March–April (cherry blossoms) and September–October are ideal. Summer is hot, humid and crowded with school groups; winter is cheap and the museums are empty.
Flying the other way? Washington to LondonFares, airlines and tips for DCA to LHR.Ready to compare live fares?
See every airline on LHR–DCA side by side with bags and seat rules spelled out.
Search London to WashingtonLondon to Washington: common questions
How long is the flight from London to Washington?
A nonstop flight from London (LHR) to Washington (DCA) takes about 7h 45m gate to gate, covering 3,655 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from LHR to DCA?
American Airlines, British Airways and Virgin Atlantic operate nonstop flights from London (LHR) to Washington (DCA), with 3 nonstop departures a day between them. One-stop options connect through JFK, BOS and ATL.
What is the cheapest month to fly from London to Washington?
Over the next six months, January 2027 has the lowest round-trip fares from London (LHR) to Washington (DCA), starting at $351 per traveler including taxes and fees. Within any month, Wednesday departures average the lowest prices.
How far in advance should I book London to Washington flights?
Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between London and Washington?
Washington is 5 hours behind London. LHR is on Europe/London time and DCA on America/New York time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.