Washington, D.C. (Arlington County), VA
Islip, NY
BEST
DEAL
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Thu, 03 Apr
IAD - ISP
-18 %
$55
$45
Prime price per passenger
Washington, D.C. (Arlington County), VA
Islip, NY
BEST
DEAL
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Sat, 10 May
IAD - ISP
-18 %
$55
$45
Prime price per passenger
Washington, D.C. (Arlington County), VA
Islip, NY
BEST
DEAL
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Tue, 11 Mar
IAD - ISP
-19 %
$58
$47
Prime price per passenger
Washington, D.C. (Arlington County), VA
Islip, NY
BEST
DEAL
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Thu, 08 May
IAD - ISP
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Wed, 14 May
ISP - IAD
$114
$105
Prime price per passenger
Washington, D.C. (Arlington County), VA
Islip, NY
BEST
DEAL
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Thu, 20 Mar
IAD - ISP
$156
$151
Prime price per passenger
Washington, D.C. (Arlington County), VA
Islip, NY
BEST
DEAL
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Wed, 16 Apr
IAD - ISP
$214
$207
Prime price per passenger
Washington, D.C. (Arlington County), VA
Islip, NY
BEST
DEAL
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Fri, 18 Apr
IAD - ISP
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Mon, 21 Apr
ISP - IAD
$884
$868
Prime price per passenger