United Flight UA4638 Deals & Information (2025/2026)

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United Flight 4638 Route Deals From $94

The cheapest prices found with in the last 7 days for return flights were $201 and $94 for one-way flights to Colorado Springs for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 30 - Fri, Oct 3
ORD
O'Hare Intl.
COS
Colorado Springs
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 30 from O'Hare Intl. to Colorado Springs, returning Fri, Oct 3, priced at $201 found 1 day ago
Wed, Oct 1 - Sat, Oct 4
ORD
O'Hare Intl.
COS
Colorado Springs
$209 Roundtrip, found 2 days ago
$209
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 1 from O'Hare Intl. to Colorado Springs, returning Sat, Oct 4, priced at $209 found 2 days ago
Tue, Sep 30 - Fri, Oct 3
ORD
O'Hare Intl.
COS
Colorado Springs
$210 Roundtrip, found 1 day ago
$210
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 30 from O'Hare Intl. to Colorado Springs, returning Fri, Oct 3, priced at $210 found 1 day ago
Tue, Nov 4 - Fri, Nov 7
ORD
O'Hare Intl.
COS
Colorado Springs
$219 Roundtrip, found 2 days ago
$219
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 4 from O'Hare Intl. to Colorado Springs, returning Fri, Nov 7, priced at $219 found 2 days ago
Fri, Sep 26 - Mon, Sep 29
ORD
O'Hare Intl.
COS
Colorado Springs
$225 Roundtrip, found 1 day ago
$225
Roundtrip
found 1 day ago
Select United flight, departing Fri, Sep 26 from O'Hare Intl. to Colorado Springs, returning Mon, Sep 29, priced at $225 found 1 day ago
Tue, Sep 30 - Fri, Oct 3
ORD
O'Hare Intl.
COS
Colorado Springs
$229 Roundtrip, found 1 day ago
$229
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 30 from O'Hare Intl. to Colorado Springs, returning Fri, Oct 3, priced at $229 found 1 day ago
Tue, Oct 14 - Sat, Oct 18
ORD
O'Hare Intl.
COS
Colorado Springs
$230 Roundtrip, found 5 days ago
$230
Roundtrip
found 5 days ago
Select United flight, departing Tue, Oct 14 from O'Hare Intl. to Colorado Springs, returning Sat, Oct 18, priced at $230 found 5 days ago
Tue, Sep 30 - Fri, Oct 3
ORD
O'Hare Intl.
COS
Colorado Springs
$233 Roundtrip, found 1 day ago
$233
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 30 from O'Hare Intl. to Colorado Springs, returning Fri, Oct 3, priced at $233 found 1 day ago
Mon, Sep 29 - Fri, Oct 3
ORD
O'Hare Intl.
COS
Colorado Springs
$241 Roundtrip, found 2 days ago
$241
Roundtrip
found 2 days ago
Select United flight, departing Mon, Sep 29 from O'Hare Intl. to Colorado Springs, returning Fri, Oct 3, priced at $241 found 2 days ago
Thu, Oct 23 - Sat, Oct 25
ORD
O'Hare Intl.
COS
Colorado Springs
$243 Roundtrip, found 1 day ago
$243
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 23 from O'Hare Intl. to Colorado Springs, returning Sat, Oct 25, priced at $243 found 1 day 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.