United Flight 4638 Deals & Information (2026/2027)

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United Flight 4638 Route Deals From $136

The cheapest prices found with in the last 7 days for return flights were $276 and $136 for one-way flights to Colorado Springs for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Apr 29 - Tue, May 5
ORD
O'Hare Intl.
COS
Colorado Springs
$276 Roundtrip, found 1 hour ago
$276
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Apr 29 from O'Hare Intl. to Colorado Springs, returning Tue, May 5, priced at $276 found 1 hour ago
Wed, Apr 29 - Tue, May 5
ORD
O'Hare Intl.
COS
Colorado Springs
$286 Roundtrip, found 1 hour ago
$286
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Apr 29 from O'Hare Intl. to Colorado Springs, returning Tue, May 5, priced at $286 found 1 hour ago
Sat, May 2 - Mon, May 4
ORD
O'Hare Intl.
COS
Colorado Springs
$305 Roundtrip, found 3 days ago
$305
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 2 from O'Hare Intl. to Colorado Springs, returning Mon, May 4, priced at $305 found 3 days ago
Wed, May 13 - Wed, May 20
ORD
O'Hare Intl.
COS
Colorado Springs
$306 Roundtrip, found 9 hours ago
$306
Roundtrip
found 9 hours ago
Select United flight, departing Wed, May 13 from O'Hare Intl. to Colorado Springs, returning Wed, May 20, priced at $306 found 9 hours ago
Sat, Apr 25 - Tue, Apr 28
ORD
O'Hare Intl.
COS
Colorado Springs
$308 Roundtrip, found 1 day ago
$308
Roundtrip
found 1 day ago
Select United flight, departing Sat, Apr 25 from O'Hare Intl. to Colorado Springs, returning Tue, Apr 28, priced at $308 found 1 day ago
Wed, Apr 29 - Tue, May 5
ORD
O'Hare Intl.
COS
Colorado Springs
$310 Roundtrip, found 1 hour ago
$310
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Apr 29 from O'Hare Intl. to Colorado Springs, returning Tue, May 5, priced at $310 found 1 hour ago
Wed, May 13 - Wed, May 27
ORD
O'Hare Intl.
COS
Colorado Springs
$316 Roundtrip, found 3 days ago
$316
Roundtrip
found 3 days ago
Select United flight, departing Wed, May 13 from O'Hare Intl. to Colorado Springs, returning Wed, May 27, priced at $316 found 3 days ago
Wed, Apr 29 - Tue, May 5
ORD
O'Hare Intl.
COS
Colorado Springs
$317 Roundtrip, found 1 hour ago
$317
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Apr 29 from O'Hare Intl. to Colorado Springs, returning Tue, May 5, priced at $317 found 1 hour ago
Wed, Apr 29 - Tue, May 5
ORD
O'Hare Intl.
COS
Colorado Springs
$319 Roundtrip, found 1 hour ago
$319
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Apr 29 from O'Hare Intl. to Colorado Springs, returning Tue, May 5, priced at $319 found 1 hour ago
Wed, Apr 29 - Tue, May 5
ORD
O'Hare Intl.
COS
Colorado Springs
$320 Roundtrip, found 1 hour ago
$320
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Apr 29 from O'Hare Intl. to Colorado Springs, returning Tue, May 5, priced at $320 found 1 hour ago

Frequently asked questions

What route does flight number UA4638 take?
UA4638 flies direct between Albuquerque, NM Airport (ABQ-Albuquerque Intl. Sunport) and San Francisco Airport in roughly 2 hours and 36 minutes. It can take other routes though, some of which may be multi-stop trips. Keep an eye out for this when locking in your seat to avoid any mix-ups.
What kind of plane is on flight number UA4638?
UA4638 is a flight number that is used on many different routes. If you're traveling on the most common route, Albuquerque Intl. Sunport Airport (ABQ) to SFO, chances are you'll be hopping on board a Bombardier CRJ.
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 UA4638 flight with Travelocity, please visit our Customer Service Portal.