United Flight 3633 Deals & Information (2026/2027)

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United Flight 3633 Route Deals From $177

The cheapest prices found with in the last 7 days for return flights were $319 and $177 for one-way flights to Greenville-Spartanburg Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 8 - Sun, Jan 10
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$319 Roundtrip, found 13 hours ago
$319
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Jan 8 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 10, priced at $319 found 13 hours ago
Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$338 Roundtrip, found 1 hour ago
$338
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jan 28 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 31, priced at $338 found 1 hour ago
Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$339 Roundtrip, found 1 hour ago
$339
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jan 28 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 31, priced at $339 found 1 hour ago
Fri, Oct 9 - Mon, Oct 12
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$339 Roundtrip, found 11 hours ago
$339
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Oct 9 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Mon, Oct 12, priced at $339 found 11 hours ago
Sat, Oct 10 - Tue, Oct 13
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$342 Roundtrip, found 11 hours ago
$342
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 10 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Tue, Oct 13, priced at $342 found 11 hours ago
Thu, Nov 5 - Sat, Nov 7
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$343 Roundtrip, found 1 day ago
$343
Roundtrip
found 1 day ago
Select United flight, departing Thu, Nov 5 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sat, Nov 7, priced at $343 found 1 day ago
Wed, Oct 7 - Sat, Oct 10
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$344 Roundtrip, found 11 hours ago
$344
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Oct 7 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sat, Oct 10, priced at $344 found 11 hours ago
Fri, Oct 9 - Sun, Oct 11
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$349 Roundtrip, found 11 hours ago
$349
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Oct 9 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Oct 11, priced at $349 found 11 hours ago
Fri, Oct 9 - Tue, Oct 13
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$350 Roundtrip, found 1 day ago
$350
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 9 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Tue, Oct 13, priced at $350 found 1 day ago
Sat, Oct 10 - Tue, Oct 13
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$352 Roundtrip, found 11 hours ago
$352
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 10 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Tue, Oct 13, priced at $352 found 11 hours ago
Thu, Oct 15 - Sun, Oct 18
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$355 Roundtrip, found 6 days ago
$355
Roundtrip
found 6 days ago
Select United flight, departing Thu, Oct 15 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Oct 18, priced at $355 found 6 days ago
Fri, Oct 9 - Sat, Oct 17
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$358 Roundtrip, found 21 hours ago
$358
Roundtrip
found 21 hours ago
Select United flight, departing Fri, Oct 9 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sat, Oct 17, priced at $358 found 21 hours ago
Fri, Jan 22 - Sun, Jan 31
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$358 Roundtrip, found 16 hours ago
$358
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Jan 22 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 31, priced at $358 found 16 hours ago
Thu, Dec 3 - Sun, Dec 6
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$365 Roundtrip, found 15 hours ago
$365
Roundtrip
found 15 hours ago
Select United flight, departing Thu, Dec 3 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Dec 6, priced at $365 found 15 hours ago
Thu, Jan 28 - Sun, Jan 31
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$384 Roundtrip, found 1 hour ago
$384
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Jan 28 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Sun, Jan 31, priced at $384 found 1 hour ago
Sat, Oct 10 - Tue, Oct 13
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$386 Roundtrip, found 11 hours ago
$386
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 10 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Tue, Oct 13, priced at $386 found 11 hours ago
Sat, Oct 10 - Tue, Oct 13
ORD
O'Hare Intl.
GSP
Greenville-Spartanburg Intl.
$389 Roundtrip, found 11 hours ago
$389
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 10 from O'Hare Intl. to Greenville-Spartanburg Intl., returning Tue, Oct 13, priced at $389 found 11 hours ago

Frequently asked questions

What route does flight number UA3633 take?
UA3633 is used on a number of routes. More commonly, UA3633 flies direct from Cleveland, OH Airport (CLE-Hopkins Intl.) to O'Hare Airport. If that's your chosen flight path, you'll be airborne for 1 hour and 29 minutes.
What kind of plane is on flight number UA3633?
You'll probably be cruising aboard the Embraer 175 if you're on flight number UA3633 from Cleveland, OH Airport (CLE-Hopkins Intl.) to Chicago, IL Airport (ORD-O'Hare Intl.). This is the most commonly used aircraft model on this popular route.
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 UA3633 flight with Travelocity, please visit our Customer Service Portal.