United Flight 5257 Deals & Information (2025/2026)

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United Flight 5257 Route Deals From $214

The cheapest prices found with in the last 7 days for return flights were $189 and $214 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 24 - Sun, Sep 28
DEN
Denver Intl.
BIL
Logan Intl.
$189 Roundtrip, found 3 days ago
$189
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 24 from Denver Intl. to Logan Intl., returning Sun, Sep 28, priced at $189 found 3 days ago
Wed, Aug 13 - Sat, Aug 16
DEN
Denver Intl.
BIL
Logan Intl.
$191 Roundtrip, found 5 hours ago
$191
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 13 from Denver Intl. to Logan Intl., returning Sat, Aug 16, priced at $191 found 5 hours ago
Wed, Aug 13 - Sat, Aug 16
DEN
Denver Intl.
BIL
Logan Intl.
$196 Roundtrip, found 5 hours ago
$196
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 13 from Denver Intl. to Logan Intl., returning Sat, Aug 16, priced at $196 found 5 hours ago
Tue, Aug 5 - Tue, Aug 12
DEN
Denver Intl.
BIL
Logan Intl.
$197 Roundtrip, found 17 hours ago
$197
Roundtrip
found 17 hours ago
Select United flight, departing Tue, Aug 5 from Denver Intl. to Logan Intl., returning Tue, Aug 12, priced at $197 found 17 hours ago
Fri, Aug 1 - Sat, Aug 2
DEN
Denver Intl.
BIL
Logan Intl.
$199 Roundtrip, found 5 days ago
$199
Roundtrip
found 5 days ago
Select United flight, departing Fri, Aug 1 from Denver Intl. to Logan Intl., returning Sat, Aug 2, priced at $199 found 5 days ago
Fri, Sep 5 - Sun, Sep 7
DEN
Denver Intl.
BIL
Logan Intl.
$201 Roundtrip, found 5 days ago
$201
Roundtrip
found 5 days ago
Select United flight, departing Fri, Sep 5 from Denver Intl. to Logan Intl., returning Sun, Sep 7, priced at $201 found 5 days ago
Tue, Aug 5 - Tue, Aug 12
DEN
Denver Intl.
BIL
Logan Intl.
$202 Roundtrip, found 17 hours ago
$202
Roundtrip
found 17 hours ago
Select United flight, departing Tue, Aug 5 from Denver Intl. to Logan Intl., returning Tue, Aug 12, priced at $202 found 17 hours ago
Wed, Sep 24 - Sun, Sep 28
DEN
Denver Intl.
BIL
Logan Intl.
$219 Roundtrip, found 3 days ago
$219
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 24 from Denver Intl. to Logan Intl., returning Sun, Sep 28, priced at $219 found 3 days ago
Wed, Aug 13 - Sat, Aug 16
DEN
Denver Intl.
BIL
Logan Intl.
$221 Roundtrip, found 5 hours ago
$221
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 13 from Denver Intl. to Logan Intl., returning Sat, Aug 16, priced at $221 found 5 hours ago
Fri, Sep 5 - Sun, Sep 7
DEN
Denver Intl.
BIL
Logan Intl.
$226 Roundtrip, found 5 days ago
$226
Roundtrip
found 5 days ago
Select United flight, departing Fri, Sep 5 from Denver Intl. to Logan Intl., returning Sun, Sep 7, priced at $226 found 5 days ago
Wed, Sep 24 - Sun, Sep 28
DEN
Denver Intl.
BIL
Logan Intl.
$249 Roundtrip, found 3 days ago
$249
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 24 from Denver Intl. to Logan Intl., returning Sun, Sep 28, priced at $249 found 3 days ago
Wed, Aug 13 - Sat, Aug 16
DEN
Denver Intl.
BIL
Logan Intl.
$251 Roundtrip, found 5 hours ago
$251
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 13 from Denver Intl. to Logan Intl., returning Sat, Aug 16, priced at $251 found 5 hours ago
Wed, Aug 13 - Sat, Aug 16
DEN
Denver Intl.
BIL
Logan Intl.
$256 Roundtrip, found 5 hours ago
$256
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 13 from Denver Intl. to Logan Intl., returning Sat, Aug 16, priced at $256 found 5 hours ago
Tue, Aug 5 - Tue, Aug 12
DEN
Denver Intl.
BIL
Logan Intl.
$257 Roundtrip, found 17 hours ago
$257
Roundtrip
found 17 hours ago
Select United flight, departing Tue, Aug 5 from Denver Intl. to Logan Intl., returning Tue, Aug 12, priced at $257 found 17 hours ago
Wed, Sep 24 - Sun, Sep 28
DEN
Denver Intl.
BIL
Logan Intl.
$259 Roundtrip, found 3 days ago
$259
Roundtrip
found 3 days ago
Select United flight, departing Wed, Sep 24 from Denver Intl. to Logan Intl., returning Sun, Sep 28, priced at $259 found 3 days ago
Wed, Aug 13 - Sat, Aug 16
DEN
Denver Intl.
BIL
Logan Intl.
$261 Roundtrip, found 5 hours ago
$261
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Aug 13 from Denver Intl. to Logan Intl., returning Sat, Aug 16, priced at $261 found 5 hours ago
Tue, Aug 5 - Tue, Aug 12
DEN
Denver Intl.
BIL
Logan Intl.
$262 Roundtrip, found 17 hours ago
$262
Roundtrip
found 17 hours ago
Select United flight, departing Tue, Aug 5 from Denver Intl. to Logan Intl., returning Tue, Aug 12, priced at $262 found 17 hours ago

Frequently asked questions

What route does flight number UA5257 take?
UA5257 is used on multiple routes, but the most common is between Denver, CO Airport (DEN-Denver Intl.) and Pitkin County Airport (ASE). If you manage to score a direct flight, you'll disembark the plane in about 48 minutes. Multi-stop flights can also travel under the same number, as can flights on other routes.
What kind of plane is on flight number UA5257?
If you have a seat on flight UA5257 from DIA airport to Aspen, CO Airport (ASE-Pitkin County), you'll most likely be heading off on the Bombardier CRJ700. Flight UA5257 serves multiple routes, but this is the most popular one.
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 UA5257 flight with Travelocity, please visit our Customer Service Portal.