United Flight UA3918 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 3918 Route Deals From $111

The cheapest prices found with in the last 7 days for return flights were $221 and $111 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 3 - Thu, May 8
LAS
Harry Reid Intl.
IAD
Washington Dulles Intl.
$221 Roundtrip, found 1 day ago
$221
Roundtrip
found 1 day ago
Select United flight, departing Sat, May 3 from Harry Reid Intl. to Washington Dulles Intl., returning Thu, May 8, priced at $221 found 1 day ago