United Flight 3651 Deals & Information (2025/2026)

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United Flight 3651 Route Deals From $169

The cheapest prices found with in the last 7 days for return flights were $330 and $169 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, May 25 - Sat, May 31
AUS
Austin-Bergstrom Intl.
IAD
Washington Dulles Intl.
$330 Roundtrip, found 4 hours ago
$330
Roundtrip
found 4 hours ago
Select United flight, departing Sun, May 25 from Austin-Bergstrom Intl. to Washington Dulles Intl., returning Sat, May 31, priced at $330 found 4 hours ago

Frequently asked questions

What route does flight number UA3651 take?
Flight number UA3651 operates straight from Pittsburgh Intl. Airport (PIT) to ORD. During this trip, you can expect to be in the air for around 1 hour and 35 minutes. It pays to book ahead to secure your favorite seat.
What kind of plane is on flight number UA3651?
Get set to climb aboard an Embraer 170 if you have a seat on flight UA3651. The majority of flights from PIT to O’Hare Airport operate using this type of plane.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA3651 flight with Travelocity, please visit our Customer Service Portal.