United Flight 4551 Deals & Information (2026/2027)

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United Flight 4551 Route Deals From $141

The cheapest prices found with in the last 7 days for return flights were $279 and $141 for one-way flights to Greenville-Spartanburg Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Mar 21 - Sun, Mar 28
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$279 Roundtrip, found 5 hours ago
$279
Roundtrip
found 5 hours ago
Select United flight, departing Sun, Mar 21 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Mar 28, priced at $279 found 5 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$283 Roundtrip, found 7 hours ago
$283
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $283 found 7 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$299 Roundtrip, found 7 hours ago
$299
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $299 found 7 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$303 Roundtrip, found 7 hours ago
$303
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $303 found 7 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$306 Roundtrip, found 7 hours ago
$306
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $306 found 7 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$310 Roundtrip, found 7 hours ago
$310
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $310 found 7 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$313 Roundtrip, found 7 hours ago
$313
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $313 found 7 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$320 Roundtrip, found 7 hours ago
$320
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $320 found 7 hours ago
Wed, Oct 14 - Mon, Oct 19
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$321 Roundtrip, found 7 hours ago
$321
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Oct 14 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 19, priced at $321 found 7 hours ago
Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$322 Roundtrip, found 5 hours ago
$322
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Jan 28 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 31, priced at $322 found 5 hours ago

Frequently asked questions

What route does flight number UA4551 take?
UA4551 flies direct from ORD to Albany International Airport in 2 hours and 1 minute. It can sometimes be used on other routes though, some of which may be multi-stop flights. Keep an eye out for this when locking in your airfare to avoid any confusion.
What terminal does UA4551 fly out of?
Terminal 1 is the terminal you'll likely depart from if you're booked on a flight from O'Hare Airport. Chicago, IL Airport (ORD-O'Hare Intl.) to Albany Intl. Airport (ALB) is the most commonly traveled route for flight number UA4551.
What kind of plane is on flight number UA4551?
If you've booked a seat on flight UA4551 from O'Hare Airport to ALB, there's an excellent chance you'll be traveling aboard the Canadair (Bombardier) Regional Jet 550. Flight UA4551 serves numerous routes, but this is the most popular.
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 UA4551 flight with Travelocity, please visit our Customer Service Portal.