United Flight UA3577 Deals & Information (2025/2026)

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United Flight 3577 Route Deals From $52

The cheapest prices found with in the last 7 days for return flights were $115 and $52 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 28 - Wed, Oct 29
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$115 Roundtrip, found 16 hours ago
$115
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 28 from Pittsburgh Intl. to O'Hare Intl., returning Wed, Oct 29, priced at $115 found 16 hours ago
Wed, Nov 19 - Sat, Dec 6
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$127 Roundtrip, found 2 days ago
$127
Roundtrip
found 2 days ago
Select United flight, departing Wed, Nov 19 from Pittsburgh Intl. to O'Hare Intl., returning Sat, Dec 6, priced at $127 found 2 days ago
Thu, Oct 23 - Sat, Oct 25
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$130 Roundtrip, found 6 days ago
$130
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 23 from Pittsburgh Intl. to O'Hare Intl., returning Sat, Oct 25, priced at $130 found 6 days ago
Thu, Oct 23 - Sat, Oct 25
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$135 Roundtrip, found 6 days ago
$135
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 23 from Pittsburgh Intl. to O'Hare Intl., returning Sat, Oct 25, priced at $135 found 6 days ago
Thu, Oct 23 - Sat, Oct 25
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$139 Roundtrip, found 6 days ago
$139
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 23 from Pittsburgh Intl. to O'Hare Intl., returning Sat, Oct 25, priced at $139 found 6 days ago
Mon, Nov 10 - Thu, Nov 13
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$148 Roundtrip, found 4 days ago
$148
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from Pittsburgh Intl. to O'Hare Intl., returning Thu, Nov 13, priced at $148 found 4 days ago
Mon, Nov 10 - Thu, Nov 13
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$150 Roundtrip, found 4 days ago
$150
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from Pittsburgh Intl. to O'Hare Intl., returning Thu, Nov 13, priced at $150 found 4 days ago
Tue, Oct 28 - Wed, Oct 29
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$153 Roundtrip, found 16 hours ago
$153
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 28 from Pittsburgh Intl. to O'Hare Intl., returning Wed, Oct 29, priced at $153 found 16 hours ago
Tue, Oct 28 - Wed, Oct 29
PIT
Pittsburgh Intl.
ORD
O'Hare Intl.
$155 Roundtrip, found 16 hours ago
$155
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 28 from Pittsburgh Intl. to O'Hare Intl., returning Wed, Oct 29, priced at $155 found 16 hours ago

Frequently asked questions

What route does flight number UA3577 take?
Flight number UA3577 takes about 1 hour and 48 minutes to jet straight from Chicago, IL Airport (ORD-O'Hare Intl.) to Huntsville Intl. Airport (HSV). Sure, there's magic in the destination, but half the fun is in the journey!
What terminal does UA3577 fly out of?
UA3577 runs between ORD and Huntsville Intl. Airport (HSV), and travelers with a seat on this flight generally board the aircraft from Terminal 2.
What kind of plane is on flight number UA3577?
The Embraer 170 is the plane that's mostly used for flight number UA3577. Usually, this flight departs from O'Hare Airport and arrives at Huntsville Intl. Airport (HSV).
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 UA3577 flight with Travelocity, please visit our Customer Service Portal.