
United Flight UA3478 Deals & Information (2025/2026)
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United Flight 3478 Route Deals From $90
The cheapest prices found with in the last 7 days for return flights were $160 and $90 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$160 Roundtrip, found 9 hours ago
$160
Roundtrip
found 9 hours ago
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$178 Roundtrip, found 9 hours ago
$178
Roundtrip
found 9 hours ago
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$181 Roundtrip, found 15 hours ago
$181
Roundtrip
found 15 hours ago
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$187 Roundtrip, found 2 days ago
$187
Roundtrip
found 2 days ago
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$189 Roundtrip, found 9 hours ago
$189
Roundtrip
found 9 hours ago
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$190 Roundtrip, found 9 hours ago
$190
Roundtrip
found 9 hours ago
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$198 Roundtrip, found 15 hours ago
$198
Roundtrip
found 15 hours ago
PIT
Pittsburgh Intl.
IAD
Washington Dulles Intl.
$204 Roundtrip, found 20 hours ago
$204
Roundtrip
found 20 hours ago