United Flight 4638 Deals & Information (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 4638 Route Deals From $176

The cheapest prices found with in the last 7 days for return flights were $351 and $176 for one-way flights to Colorado Springs for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 30 - Mon, Aug 3
ORD
O'Hare Intl.
COS
Colorado Springs
$351 Roundtrip, found 17 hours ago
$351
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Jul 30 from O'Hare Intl. to Colorado Springs, returning Mon, Aug 3, priced at $351 found 17 hours ago
Fri, Jul 10 - Tue, Jul 14
ORD
O'Hare Intl.
COS
Colorado Springs
$364 Roundtrip, found 1 day ago
$364
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jul 10 from O'Hare Intl. to Colorado Springs, returning Tue, Jul 14, priced at $364 found 1 day ago
Fri, Jun 26 - Tue, Jun 30
ORD
O'Hare Intl.
COS
Colorado Springs
$369 Roundtrip, just found
$369
Roundtrip
just found
Select United flight, departing Fri, Jun 26 from O'Hare Intl. to Colorado Springs, returning Tue, Jun 30, priced at $369 just found
Sat, Jun 20 - Thu, Jun 25
ORD
O'Hare Intl.
COS
Colorado Springs
$378 Roundtrip, found 1 day ago
$378
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jun 20 from O'Hare Intl. to Colorado Springs, returning Thu, Jun 25, priced at $378 found 1 day ago
Thu, Oct 15 - Sun, Oct 18
ORD
O'Hare Intl.
COS
Colorado Springs
$380 Roundtrip, found 3 days ago
$380
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 15 from O'Hare Intl. to Colorado Springs, returning Sun, Oct 18, priced at $380 found 3 days ago
Wed, Sep 9 - Wed, Sep 16
ORD
O'Hare Intl.
COS
Colorado Springs
$385 Roundtrip, found 19 hours ago
$385
Roundtrip
found 19 hours ago
Select United flight, departing Wed, Sep 9 from O'Hare Intl. to Colorado Springs, returning Wed, Sep 16, priced at $385 found 19 hours ago
Thu, Oct 22 - Mon, Oct 26
ORD
O'Hare Intl.
COS
Colorado Springs
$389 Roundtrip, found 1 day ago
$389
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 22 from O'Hare Intl. to Colorado Springs, returning Mon, Oct 26, priced at $389 found 1 day ago
Thu, Oct 15 - Sun, Oct 18
ORD
O'Hare Intl.
COS
Colorado Springs
$390 Roundtrip, found 3 days ago
$390
Roundtrip
found 3 days ago
Select United flight, departing Thu, Oct 15 from O'Hare Intl. to Colorado Springs, returning Sun, Oct 18, priced at $390 found 3 days ago
Wed, Jun 17 - Sat, Jun 20
ORD
O'Hare Intl.
COS
Colorado Springs
$391 Roundtrip, found 1 day ago
$391
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jun 17 from O'Hare Intl. to Colorado Springs, returning Sat, Jun 20, priced at $391 found 1 day ago
Thu, Jul 30 - Mon, Aug 3
ORD
O'Hare Intl.
COS
Colorado Springs
$392 Roundtrip, found 17 hours ago
$392
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Jul 30 from O'Hare Intl. to Colorado Springs, returning Mon, Aug 3, priced at $392 found 17 hours 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.