$1,548 Cheap Swiss International Air Lines flights London (LHR) to Washington (IAD)

$1,548 Cheap Swiss International Air Lines flights London (LHR) to Washington (IAD)

Prices were available within the past 7 days and start at $1,548 for one-way flights and $451 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 1 - Mon, Dec 8

LHR

London

IAD

Washington

$451 Roundtrip, found 1 day ago

$451

Roundtrip

found 1 day ago

Select Swiss International Air Lines flight, departing Mon, Dec 1 from London to Washington, returning Mon, Dec 8, priced at $451 found 1 day ago

Mon, Aug 25 - Wed, Sep 10

LHR

London

IAD

Washington

$459 Roundtrip, found 1 day ago

$459

Roundtrip

found 1 day ago

Select Swiss International Air Lines flight, departing Mon, Aug 25 from London to Washington, returning Wed, Sep 10, priced at $459 found 1 day ago

Mon, Dec 1 - Mon, Dec 8

LHR

London

IAD

Washington

$461 Roundtrip, found 1 day ago

$461

Roundtrip

found 1 day ago

Select Swiss International Air Lines flight, departing Mon, Dec 1 from London to Washington, returning Mon, Dec 8, priced at $461 found 1 day ago

Mon, Dec 1 - Mon, Dec 8

LHR

London

IAD

Washington

$462 Roundtrip, found 1 day ago

$462

Roundtrip

found 1 day ago

Select Swiss International Air Lines flight, departing Mon, Dec 1 from London to Washington, returning Mon, Dec 8, priced at $462 found 1 day ago

Mon, Sep 1 - Tue, Sep 9

LHR

London

IAD

Washington

$575 Roundtrip, found 1 day ago

$575

Roundtrip

found 1 day ago

Select Swiss International Air Lines flight, departing Mon, Sep 1 from London to Washington, returning Tue, Sep 9, priced at $575 found 1 day ago