United Flight AA4666 Deals & Information (2025/2026)

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 4666 Route Deals From $171

The cheapest prices found with in the last 7 days for return flights were $334 and $171 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 2 - Sat, Jul 5
ABQ
Albuquerque Intl. Sunport
ORD
O'Hare Intl.
$334 Roundtrip, found 2 days ago
$334
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 2 from Albuquerque Intl. Sunport to O'Hare Intl., returning Sat, Jul 5, priced at $334 found 2 days ago
Sat, Jul 19 - Mon, Jul 21
ABQ
Albuquerque Intl. Sunport
ORD
O'Hare Intl.
$378 Roundtrip, found 22 hours ago
$378
Roundtrip
found 22 hours ago
Select United flight, departing Sat, Jul 19 from Albuquerque Intl. Sunport to O'Hare Intl., returning Mon, Jul 21, priced at $378 found 22 hours ago
Sat, Jul 19 - Mon, Jul 21
ABQ
Albuquerque Intl. Sunport
ORD
O'Hare Intl.
$384 Roundtrip, found 22 hours ago
$384
Roundtrip
found 22 hours ago
Select United flight, departing Sat, Jul 19 from Albuquerque Intl. Sunport to O'Hare Intl., returning Mon, Jul 21, priced at $384 found 22 hours ago
Fri, Sep 19 - Mon, Sep 22
ABQ
Albuquerque Intl. Sunport
ORD
O'Hare Intl.
$387 Roundtrip, found 16 hours ago
$387
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Sep 19 from Albuquerque Intl. Sunport to O'Hare Intl., returning Mon, Sep 22, priced at $387 found 16 hours ago
Sat, Jul 19 - Mon, Jul 21
ABQ
Albuquerque Intl. Sunport
ORD
O'Hare Intl.
$390 Roundtrip, found 22 hours ago
$390
Roundtrip
found 22 hours ago
Select United flight, departing Sat, Jul 19 from Albuquerque Intl. Sunport to O'Hare Intl., returning Mon, Jul 21, priced at $390 found 22 hours ago
Fri, Sep 19 - Mon, Sep 22
ABQ
Albuquerque Intl. Sunport
ORD
O'Hare Intl.
$394 Roundtrip, found 16 hours ago
$394
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Sep 19 from Albuquerque Intl. Sunport to O'Hare Intl., returning Mon, Sep 22, priced at $394 found 16 hours ago
Fri, Sep 19 - Mon, Sep 22
ABQ
Albuquerque Intl. Sunport
ORD
O'Hare Intl.
$404 Roundtrip, found 16 hours ago
$404
Roundtrip
found 16 hours ago
Select United flight, departing Fri, Sep 19 from Albuquerque Intl. Sunport to O'Hare Intl., returning Mon, Sep 22, priced at $404 found 16 hours ago

Frequently asked questions

What route does flight number UA4666 take?
UA4666 flies direct from DFW to DIA airport in 2 hours and 13 minutes. It can sometimes take other routes though, some of which could be multi-stop flights. Keep an eye out for this when locking in your seat to avoid any mix-ups.
What terminal does UA4666 fly out of?
UA4666 flights out of Dallas-Fort Worth Intl. Airport (DFW) generally depart from Terminal E. This flight number runs on a number of different routes, but the most popular one is Dallas-Fort Worth Intl. Airport (DFW) to Denver Intl. Airport (DEN).
What kind of plane is on flight number UA4666?
There’s every chance you’ll be aboard an Embraer 175 if you’ve booked a seat from Dallas-Fort Worth Intl. Airport (DFW) to Denver Intl. Airport (DEN), one route used for flight UA4666.
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 UA4666 flight with Travelocity, please visit our Customer Service Portal.