United Flight 5771 Deals & Information (2026/2027)

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United Flight 5771 Route Deals From $255

The cheapest prices found with in the last 7 days for return flights were $249 and $255 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 23 - Sun, Jul 26
DEN
Denver Intl.
BIL
Logan Intl.
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 23 from Denver Intl. to Logan Intl., returning Sun, Jul 26, priced at $249 found 1 day ago
Fri, Jun 19 - Mon, Jun 22
DEN
Denver Intl.
BIL
Logan Intl.
$255 Roundtrip, found 1 day ago
$255
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 19 from Denver Intl. to Logan Intl., returning Mon, Jun 22, priced at $255 found 1 day ago
Thu, Jul 23 - Sun, Jul 26
DEN
Denver Intl.
BIL
Logan Intl.
$264 Roundtrip, found 1 day ago
$264
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 23 from Denver Intl. to Logan Intl., returning Sun, Jul 26, priced at $264 found 1 day ago
Fri, Jun 19 - Mon, Jun 22
DEN
Denver Intl.
BIL
Logan Intl.
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 19 from Denver Intl. to Logan Intl., returning Mon, Jun 22, priced at $268 found 1 day ago
Fri, Jun 19 - Mon, Jun 22
DEN
Denver Intl.
BIL
Logan Intl.
$270 Roundtrip, found 1 day ago
$270
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 19 from Denver Intl. to Logan Intl., returning Mon, Jun 22, priced at $270 found 1 day ago
Fri, Aug 21 - Sat, Aug 29
DEN
Denver Intl.
BIL
Logan Intl.
$277 Roundtrip, found 2 days ago
$277
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 21 from Denver Intl. to Logan Intl., returning Sat, Aug 29, priced at $277 found 2 days ago
Fri, Aug 21 - Sat, Aug 29
DEN
Denver Intl.
BIL
Logan Intl.
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 21 from Denver Intl. to Logan Intl., returning Sat, Aug 29, priced at $279 found 2 days ago
Fri, Jun 26 - Tue, Jun 30
DEN
Denver Intl.
BIL
Logan Intl.
$280 Roundtrip, found 2 days ago
$280
Roundtrip
found 2 days ago
Select United flight, departing Fri, Jun 26 from Denver Intl. to Logan Intl., returning Tue, Jun 30, priced at $280 found 2 days ago
Fri, May 29 - Mon, Jun 1
DEN
Denver Intl.
BIL
Logan Intl.
$282 Roundtrip, found 4 days ago
$282
Roundtrip
found 4 days ago
Select United flight, departing Fri, May 29 from Denver Intl. to Logan Intl., returning Mon, Jun 1, priced at $282 found 4 days ago
Fri, Jun 19 - Mon, Jun 22
DEN
Denver Intl.
BIL
Logan Intl.
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 19 from Denver Intl. to Logan Intl., returning Mon, Jun 22, priced at $284 found 1 day ago
Fri, Jun 26 - Sun, Jun 28
DEN
Denver Intl.
BIL
Logan Intl.
$285 Roundtrip, found 1 hour ago
$285
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Jun 26 from Denver Intl. to Logan Intl., returning Sun, Jun 28, priced at $285 found 1 hour ago
Thu, Jul 23 - Sun, Jul 26
DEN
Denver Intl.
BIL
Logan Intl.
$286 Roundtrip, found 1 day ago
$286
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 23 from Denver Intl. to Logan Intl., returning Sun, Jul 26, priced at $286 found 1 day ago
Tue, May 26 - Sat, May 30
DEN
Denver Intl.
BIL
Logan Intl.
$287 Roundtrip, found 2 days ago
$287
Roundtrip
found 2 days ago
Select United flight, departing Tue, May 26 from Denver Intl. to Logan Intl., returning Sat, May 30, priced at $287 found 2 days ago
Fri, Aug 21 - Sat, Aug 29
DEN
Denver Intl.
BIL
Logan Intl.
$292 Roundtrip, found 2 days ago
$292
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 21 from Denver Intl. to Logan Intl., returning Sat, Aug 29, priced at $292 found 2 days ago
Fri, May 22 - Mon, May 25
DEN
Denver Intl.
BIL
Logan Intl.
$295 Roundtrip, found 2 days ago
$295
Roundtrip
found 2 days ago
Select United flight, departing Fri, May 22 from Denver Intl. to Logan Intl., returning Mon, May 25, priced at $295 found 2 days ago

Frequently asked questions

What route does flight number UA5771 take?
Flight number UA5771 operates direct from RDM to DEN. During this journey, expect to be in the air for approximately 2 hours and 31 minutes. It pays to book ahead to lock in your preferred seat.
How often is UA5771 on time?
For passengers flying on United Airlines flight number UA5771 from Robert's Field Airport (RDM) to DIA airport, 88% of these trips run on time. If you are delayed, expect to wait roughly 49 minutes on average. Thanks to the air carrier's high standard of service, this trip has earned a star rating of 2.45.
What kind of plane is on flight number UA5771?
The route for UA5771 is usually Roberts Field to Denver, CO Airport (DEN-Denver Intl.), and the Bombardier CRJ is the type of aircraft you're likely to be jetting off with.
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 UA5771 flight with Travelocity, please visit our Customer Service Portal.