United Flight UA4666 Deals & Information (2025/2026)

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United Flight 4666 Route Deals From $255

The cheapest prices found with in the last 7 days for return flights were $269 and $255 for one-way flights to Glacier Park Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Oct 5 - Sat, Oct 11
DEN
Denver Intl.
FCA
Glacier Park Intl.
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select United flight, departing Sun, Oct 5 from Denver Intl. to Glacier Park Intl., returning Sat, Oct 11, priced at $269 found 1 day ago
Sat, Sep 6 - Thu, Sep 11
DEN
Denver Intl.
FCA
Glacier Park Intl.
$274 Roundtrip, just found
$274
Roundtrip
just found
Select United flight, departing Sat, Sep 6 from Denver Intl. to Glacier Park Intl., returning Thu, Sep 11, priced at $274 just found
Sat, Aug 16 - Sat, Aug 23
DEN
Denver Intl.
FCA
Glacier Park Intl.
$289 Roundtrip, found 20 hours ago
$289
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Aug 16 from Denver Intl. to Glacier Park Intl., returning Sat, Aug 23, priced at $289 found 20 hours ago
Sat, Sep 6 - Thu, Sep 11
DEN
Denver Intl.
FCA
Glacier Park Intl.
$294 Roundtrip, just found
$294
Roundtrip
just found
Select United flight, departing Sat, Sep 6 from Denver Intl. to Glacier Park Intl., returning Thu, Sep 11, priced at $294 just found
Sat, Aug 16 - Sat, Aug 23
DEN
Denver Intl.
FCA
Glacier Park Intl.
$324 Roundtrip, found 20 hours ago
$324
Roundtrip
found 20 hours ago
Select United flight, departing Sat, Aug 16 from Denver Intl. to Glacier Park Intl., returning Sat, Aug 23, priced at $324 found 20 hours ago
Sat, Sep 6 - Thu, Sep 11
DEN
Denver Intl.
FCA
Glacier Park Intl.
$330 Roundtrip, just found
$330
Roundtrip
just found
Select United flight, departing Sat, Sep 6 from Denver Intl. to Glacier Park Intl., returning Thu, Sep 11, priced at $330 just found

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.