United Flight AA4728 Deals & Information (2025/2026)

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United Flight 4728 Route Deals From $209

The cheapest prices found with in the last 7 days for return flights were $179 and $209 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 22 - Fri, Jan 16
COU
Columbia Regional
ORD
O'Hare Intl.
$179 Roundtrip, just found
$179
Roundtrip
just found
Select United flight, departing Mon, Dec 22 from Columbia Regional to O'Hare Intl., returning Fri, Jan 16, priced at $179 just found
Thu, Oct 30 - Sun, Nov 16
COU
Columbia Regional
ORD
O'Hare Intl.
$186 Roundtrip, found 4 days ago
$186
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 30 from Columbia Regional to O'Hare Intl., returning Sun, Nov 16, priced at $186 found 4 days ago
Fri, Oct 31 - Sat, Nov 1
COU
Columbia Regional
ORD
O'Hare Intl.
$187 Roundtrip, found 1 day ago
$187
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Columbia Regional to O'Hare Intl., returning Sat, Nov 1, priced at $187 found 1 day ago
Wed, Apr 22 - Sat, Apr 25
COU
Columbia Regional
ORD
O'Hare Intl.
$188 Roundtrip, found 4 days ago
$188
Roundtrip
found 4 days ago
Select United flight, departing Wed, Apr 22 from Columbia Regional to O'Hare Intl., returning Sat, Apr 25, priced at $188 found 4 days ago
Fri, Oct 24 - Sun, Oct 26
COU
Columbia Regional
ORD
O'Hare Intl.
$203 Roundtrip, found 4 days ago
$203
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 24 from Columbia Regional to O'Hare Intl., returning Sun, Oct 26, priced at $203 found 4 days ago
Thu, Oct 30 - Sun, Nov 16
COU
Columbia Regional
ORD
O'Hare Intl.
$217 Roundtrip, found 4 days ago
$217
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 30 from Columbia Regional to O'Hare Intl., returning Sun, Nov 16, priced at $217 found 4 days ago
Fri, Oct 24 - Sun, Oct 26
COU
Columbia Regional
ORD
O'Hare Intl.
$224 Roundtrip, found 4 days ago
$224
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 24 from Columbia Regional to O'Hare Intl., returning Sun, Oct 26, priced at $224 found 4 days ago
Mon, Dec 22 - Fri, Jan 16
COU
Columbia Regional
ORD
O'Hare Intl.
$239 Roundtrip, just found
$239
Roundtrip
just found
Select United flight, departing Mon, Dec 22 from Columbia Regional to O'Hare Intl., returning Fri, Jan 16, priced at $239 just found
Thu, Oct 30 - Sun, Nov 16
COU
Columbia Regional
ORD
O'Hare Intl.
$247 Roundtrip, found 4 days ago
$247
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 30 from Columbia Regional to O'Hare Intl., returning Sun, Nov 16, priced at $247 found 4 days ago
Fri, Oct 24 - Sun, Oct 26
COU
Columbia Regional
ORD
O'Hare Intl.
$264 Roundtrip, found 4 days ago
$264
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 24 from Columbia Regional to O'Hare Intl., returning Sun, Oct 26, priced at $264 found 4 days ago

Frequently asked questions

What route does flight number UA4728 take?
UA4728 is used on a range of routes. More commonly, UA4728 flies straight from Boise Airport (BOI) to SFO. If you have a ticket on this route, you'll be airborne for about 1 hour and 55 minutes.
What kind of plane is on flight number UA4728?
There's every chance you'll be on board a Bombardier CRJ if you've booked a fare from BOI to San Francisco Airport, one of a few routes used for flight UA4728.
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 UA4728 flight with Travelocity, please visit our Customer Service Portal.