United Flight 4638 Deals & Information (2026/2027)

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United Flight 4638 Route Deals From $161

The cheapest prices found with in the last 7 days for return flights were $306 and $161 for one-way flights to Colorado Springs for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jun 3 - Mon, Jun 8
ORD
O'Hare Intl.
COS
Colorado Springs
$306 Roundtrip, found 6 days ago
$306
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jun 3 from O'Hare Intl. to Colorado Springs, returning Mon, Jun 8, priced at $306 found 6 days ago
Wed, Jun 3 - Mon, Jun 8
ORD
O'Hare Intl.
COS
Colorado Springs
$320 Roundtrip, found 6 days ago
$320
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jun 3 from O'Hare Intl. to Colorado Springs, returning Mon, Jun 8, priced at $320 found 6 days ago
Fri, Sep 25 - Sat, Oct 3
ORD
O'Hare Intl.
COS
Colorado Springs
$331 Roundtrip, found 5 days ago
$331
Roundtrip
found 5 days ago
Select United flight, departing Fri, Sep 25 from O'Hare Intl. to Colorado Springs, returning Sat, Oct 3, priced at $331 found 5 days ago
Mon, Aug 24 - Fri, Aug 28
ORD
O'Hare Intl.
COS
Colorado Springs
$351 Roundtrip, found 4 hours ago
$351
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Aug 24 from O'Hare Intl. to Colorado Springs, returning Fri, Aug 28, priced at $351 found 4 hours ago
Mon, Aug 24 - Fri, Aug 28
ORD
O'Hare Intl.
COS
Colorado Springs
$361 Roundtrip, found 4 hours ago
$361
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Aug 24 from O'Hare Intl. to Colorado Springs, returning Fri, Aug 28, priced at $361 found 4 hours ago
Fri, Jun 19 - Wed, Jun 24
ORD
O'Hare Intl.
COS
Colorado Springs
$369 Roundtrip, found 3 days ago
$369
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jun 19 from O'Hare Intl. to Colorado Springs, returning Wed, Jun 24, priced at $369 found 3 days ago
Sun, Oct 4 - Mon, Oct 5
ORD
O'Hare Intl.
COS
Colorado Springs
$371 Roundtrip, found 23 hours ago
$371
Roundtrip
found 23 hours ago
Select United flight, departing Sun, Oct 4 from O'Hare Intl. to Colorado Springs, returning Mon, Oct 5, priced at $371 found 23 hours ago
Wed, Sep 30 - Wed, Oct 7
ORD
O'Hare Intl.
COS
Colorado Springs
$375 Roundtrip, found 2 days ago
$375
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 30 from O'Hare Intl. to Colorado Springs, returning Wed, Oct 7, priced at $375 found 2 days ago
Sat, Jun 20 - Thu, Jun 25
ORD
O'Hare Intl.
COS
Colorado Springs
$378 Roundtrip, found 14 hours ago
$378
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Jun 20 from O'Hare Intl. to Colorado Springs, returning Thu, Jun 25, priced at $378 found 14 hours ago
Fri, Jun 19 - Wed, Jun 24
ORD
O'Hare Intl.
COS
Colorado Springs
$379 Roundtrip, found 3 days ago
$379
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jun 19 from O'Hare Intl. to Colorado Springs, returning Wed, Jun 24, priced at $379 found 3 days 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.