United Flight 631 Deals & Information (2025/2026)

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United Flight 631 Route Deals From $224

The cheapest prices found with in the last 7 days for return flights were $209 and $224 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jan 7 - Sun, Jan 11
MSN
Dane County Regional
DEN
Denver Intl.
$209 Roundtrip, found 2 days ago
$209
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Dane County Regional to Denver Intl., returning Sun, Jan 11, priced at $209 found 2 days ago
Thu, Jan 22 - Mon, Jan 26
MSN
Dane County Regional
DEN
Denver Intl.
$214 Roundtrip, found 1 day ago
$214
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 22 from Dane County Regional to Denver Intl., returning Mon, Jan 26, priced at $214 found 1 day ago
Sat, Jan 17 - Wed, Jan 21
MSN
Dane County Regional
DEN
Denver Intl.
$214 Roundtrip, found 6 days ago
$214
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jan 17 from Dane County Regional to Denver Intl., returning Wed, Jan 21, priced at $214 found 6 days ago
Wed, Jan 7 - Sun, Jan 11
MSN
Dane County Regional
DEN
Denver Intl.
$219 Roundtrip, found 2 days ago
$219
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Dane County Regional to Denver Intl., returning Sun, Jan 11, priced at $219 found 2 days ago
Wed, Jan 7 - Sun, Jan 11
MSN
Dane County Regional
DEN
Denver Intl.
$223 Roundtrip, found 2 days ago
$223
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Dane County Regional to Denver Intl., returning Sun, Jan 11, priced at $223 found 2 days ago
Sat, May 16 - Tue, May 19
MSN
Dane County Regional
DEN
Denver Intl.
$225 Roundtrip, found 19 hours ago
$225
Roundtrip
found 19 hours ago
Select United flight, departing Sat, May 16 from Dane County Regional to Denver Intl., returning Tue, May 19, priced at $225 found 19 hours ago
Sat, Jan 17 - Wed, Jan 21
MSN
Dane County Regional
DEN
Denver Intl.
$225 Roundtrip, found 6 days ago
$225
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jan 17 from Dane County Regional to Denver Intl., returning Wed, Jan 21, priced at $225 found 6 days ago
Sat, Mar 14 - Wed, Mar 18
MSN
Dane County Regional
DEN
Denver Intl.
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Mar 14 from Dane County Regional to Denver Intl., returning Wed, Mar 18, priced at $229 found 1 hour ago
Mon, Mar 16 - Sat, Mar 21
MSN
Dane County Regional
DEN
Denver Intl.
$232 Roundtrip, found 5 hours ago
$232
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Mar 16 from Dane County Regional to Denver Intl., returning Sat, Mar 21, priced at $232 found 5 hours ago
Wed, Jan 7 - Sun, Jan 11
MSN
Dane County Regional
DEN
Denver Intl.
$233 Roundtrip, found 2 days ago
$233
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Dane County Regional to Denver Intl., returning Sun, Jan 11, priced at $233 found 2 days ago
Sat, Jan 17 - Wed, Jan 21
MSN
Dane County Regional
DEN
Denver Intl.
$235 Roundtrip, found 6 days ago
$235
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jan 17 from Dane County Regional to Denver Intl., returning Wed, Jan 21, priced at $235 found 6 days ago
Sat, Mar 14 - Wed, Mar 18
MSN
Dane County Regional
DEN
Denver Intl.
$239 Roundtrip, found 1 hour ago
$239
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Mar 14 from Dane County Regional to Denver Intl., returning Wed, Mar 18, priced at $239 found 1 hour ago
Thu, Jan 29 - Sun, Feb 1
MSN
Dane County Regional
DEN
Denver Intl.
$244 Roundtrip, found 2 days ago
$244
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 29 from Dane County Regional to Denver Intl., returning Sun, Feb 1, priced at $244 found 2 days ago
Sat, May 16 - Tue, May 19
MSN
Dane County Regional
DEN
Denver Intl.
$245 Roundtrip, found 19 hours ago
$245
Roundtrip
found 19 hours ago
Select United flight, departing Sat, May 16 from Dane County Regional to Denver Intl., returning Tue, May 19, priced at $245 found 19 hours ago

Frequently asked questions

What route does flight number UA631 take?
UA631 takes roughly 4 hours and 46 minutes to fly directly from Sky Harbor Intl. Airport (PHX) to Liberty Intl. Airport (EWR). We all know there's magic in the destination, but half the fun is in the journey!
How often is UA631 on time?
If you're traveling with United Airlines flight number UA631 from Phoenix, AZ Airport (PHX-Sky Harbor Intl.) to EWR, 84% of these services touch down as scheduled. On the rare occasion that there is a delay, expect a wait time of roughly 36 minutes on average. Thanks to this air carrier's top-quality service, this service has a 2.1-star rating.
What terminal does UA631 fly out of?
Flight number UA631 runs between PHX and EWR, and travelers with a seat on this flight typically depart from Terminal 3.
What kind of plane is on flight number UA631?
The Boeing 737-900 is the aircraft that's mostly used for flight number UA631. This flight nearly always leaves from Sky Harbor Intl. Airport (PHX) and touches down at Newark, NJ Airport (EWR-Liberty Intl.).
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 UA631 flight with Travelocity, please visit our Customer Service Portal.