United Flight 511 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 511 Route Deals From $59

The cheapest prices found with in the last 7 days for return flights were $130 and $59 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 8 - Tue, Nov 11
PHL
Philadelphia Intl.
ORD
O'Hare Intl.
$130 Roundtrip, just found
$130
Roundtrip
just found
Select United flight, departing Sat, Nov 8 from Philadelphia Intl. to O'Hare Intl., returning Tue, Nov 11, priced at $130 just found
Tue, Oct 28 - Thu, Oct 30
PHL
Philadelphia Intl.
ORD
O'Hare Intl.
$131 Roundtrip, found 5 hours ago
$131
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Oct 28 from Philadelphia Intl. to O'Hare Intl., returning Thu, Oct 30, priced at $131 found 5 hours ago
Thu, Jan 8 - Tue, Jan 13
PHL
Philadelphia Intl.
ORD
O'Hare Intl.
$133 Roundtrip, just found
$133
Roundtrip
just found
Select United flight, departing Thu, Jan 8 from Philadelphia Intl. to O'Hare Intl., returning Tue, Jan 13, priced at $133 just found
Tue, Oct 28 - Thu, Oct 30
PHL
Philadelphia Intl.
ORD
O'Hare Intl.
$139 Roundtrip, found 5 hours ago
$139
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Oct 28 from Philadelphia Intl. to O'Hare Intl., returning Thu, Oct 30, priced at $139 found 5 hours ago
Thu, Jan 8 - Tue, Jan 13
PHL
Philadelphia Intl.
ORD
O'Hare Intl.
$143 Roundtrip, just found
$143
Roundtrip
just found
Select United flight, departing Thu, Jan 8 from Philadelphia Intl. to O'Hare Intl., returning Tue, Jan 13, priced at $143 just found
Sat, Nov 8 - Tue, Nov 11
PHL
Philadelphia Intl.
ORD
O'Hare Intl.
$156 Roundtrip, just found
$156
Roundtrip
just found
Select United flight, departing Sat, Nov 8 from Philadelphia Intl. to O'Hare Intl., returning Tue, Nov 11, priced at $156 just found
Thu, Jan 8 - Tue, Jan 13
PHL
Philadelphia Intl.
ORD
O'Hare Intl.
$159 Roundtrip, just found
$159
Roundtrip
just found
Select United flight, departing Thu, Jan 8 from Philadelphia Intl. to O'Hare Intl., returning Tue, Jan 13, priced at $159 just found