London to Washington D.C. Flights

Deals as low as $631 right now.
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Best Deals from LHR to IAD

Discover the cheapest current deals from 897 recent searches matching your trip
  • $644
    Washington D.C.
    3 days in Oct
    Thu
    11
    Sun
    14
  • $890
    Washington D.C.
    7 days in Dec & Jan
    Wed
    26
    Wed
    2
  • $709
    Washington D.C.
    3 days in Sep
    Thu
    20
    Sun
    23
  • $709
    Washington D.C.
    2 days in Sep
    Fri
    21
    Sun
    23
  • $768
    Washington D.C.
    2 days in Aug
    Fri
    24
    Sun
    26
  • $712
    Washington D.C.
    4 days in Oct
    Thu
    4
    Mon
    8
  • When to Fly
    Prices range from $624 in November to $1,060 in July
    Details:
    Good deals for this route are priced below 760.0

    The cheapest round trip flights from LHR to IAD for any dates in the next six months were priced from about $720 - $880 and from about $930 - $970 (nonstop). A few lucky people found prices as low as $630.

    Fly out on a Tuesday, return on a Monday, save up to $60.

    The best day to depart a roundtrip ticket from London to Washington D.C. is Tuesday, saving $20. The best day to return is Monday, saving up to $40.

    From:
    London (LHR)
        
    To:
    Washington D.C. (IAD)    
        
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