Featured airlines
Plan, book, fly with confidence
Be in the know
Get alerts if flight prices drop or rise*
Book smarter
Save up to 30% on select hotels after you book a flight*
How much is the cheapest flight to Ashburn?
Prices were available within the past 7 days and start at $76 for one-way flights and $154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Mon, May 6 - Wed, May 8
SFO
San Francisco Intl.
DCA
Ronald Reagan Washington National
$160 Roundtrip, found 1 hour ago
$160
Roundtrip
found 1 hour ago
Fri, May 17 - Tue, Jun 4
SEA
Seattle - Tacoma Intl.
DCA
Ronald Reagan Washington National
$165 Roundtrip, found 1 day ago
$165
Roundtrip
found 1 day ago
Sat, May 18 - Sat, Jun 8
LAX
Los Angeles Intl.
DCA
Ronald Reagan Washington National
$179 Roundtrip, found 4 days ago
$179
Roundtrip
found 4 days ago
Tue, May 21 - Tue, May 28
LAX
Los Angeles Intl.
IAD
Washington Dulles Intl.
$187 Roundtrip, just found
$187
Roundtrip
just found
Thu, Sep 5 - Sat, Sep 7
LAX
Los Angeles Intl.
DCA
Ronald Reagan Washington National
$207 Roundtrip, found 1 day ago
$207
Roundtrip
found 1 day ago