United Flight 3421 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 3421 Route Deals From $109

The cheapest prices found with in the last 7 days for return flights were $221 and $109 for one-way flights to Greater Rochester Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 7 - Mon, Aug 11
ORD
O'Hare Intl.
ROC
Greater Rochester Intl.
$221 Roundtrip, found 4 days ago
$221
Roundtrip
found 4 days ago
Select United flight, departing Thu, Aug 7 from O'Hare Intl. to Greater Rochester Intl., returning Mon, Aug 11, priced at $221 found 4 days ago
Thu, Aug 7 - Mon, Aug 11
ORD
O'Hare Intl.
ROC
Greater Rochester Intl.
$236 Roundtrip, found 4 days ago
$236
Roundtrip
found 4 days ago
Select United flight, departing Thu, Aug 7 from O'Hare Intl. to Greater Rochester Intl., returning Mon, Aug 11, priced at $236 found 4 days ago
Mon, Sep 8 - Fri, Sep 12
ORD
O'Hare Intl.
ROC
Greater Rochester Intl.
$243 Roundtrip, found 20 hours ago
$243
Roundtrip
found 20 hours ago
Select United flight, departing Mon, Sep 8 from O'Hare Intl. to Greater Rochester Intl., returning Fri, Sep 12, priced at $243 found 20 hours ago

Frequently asked questions

What route does flight number UA3421 take?
UA3421 operates from O'Hare Intl. Airport (ORD) to Hopkins Intl. Airport (CLE) and flies direct. This trip generally takes 1 hour and 17 minutes.
What terminal does UA3421 fly out of?
You'll likely be taking off from Terminal 2 if you're traveling on UA3421 direct from O'Hare Airport to Cleveland, OH Airport (CLE-Hopkins Intl.).
What kind of plane is on flight number UA3421?
The route for UA3421 is almost always O'Hare Airport to Cleveland Hopkins Intl. Airport, and the Embraer 170 is the aircraft model you're likely to be taking off on.
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 UA3421 flight with Travelocity, please visit our Customer Service Portal.