United Flight 558 Deals & Information (2026/2027)

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United Flight 558 Route Deals From $100

The cheapest prices found with in the last 7 days for return flights were $151 and $100 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 1 - Sat, Sep 12
DEN
Denver Intl.
BOS
Logan Intl.
$151 Roundtrip, found 4 days ago
$151
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 1 from Denver Intl. to Logan Intl., returning Sat, Sep 12, priced at $151 found 4 days ago
Tue, Sep 29 - Wed, Oct 7
DEN
Denver Intl.
BOS
Logan Intl.
$158 Roundtrip, found 4 days ago
$158
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 29 from Denver Intl. to Logan Intl., returning Wed, Oct 7, priced at $158 found 4 days ago
Tue, Sep 1 - Sat, Sep 12
DEN
Denver Intl.
BOS
Logan Intl.
$164 Roundtrip, found 4 days ago
$164
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 1 from Denver Intl. to Logan Intl., returning Sat, Sep 12, priced at $164 found 4 days ago
Tue, Sep 1 - Sat, Sep 12
DEN
Denver Intl.
BOS
Logan Intl.
$173 Roundtrip, found 4 days ago
$173
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 1 from Denver Intl. to Logan Intl., returning Sat, Sep 12, priced at $173 found 4 days ago
Tue, Sep 29 - Wed, Oct 7
DEN
Denver Intl.
BOS
Logan Intl.
$186 Roundtrip, found 4 days ago
$186
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 29 from Denver Intl. to Logan Intl., returning Wed, Oct 7, priced at $186 found 4 days ago
Tue, Sep 1 - Sat, Sep 12
DEN
Denver Intl.
BOS
Logan Intl.
$198 Roundtrip, found 4 days ago
$198
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 1 from Denver Intl. to Logan Intl., returning Sat, Sep 12, priced at $198 found 4 days ago
Tue, Aug 4 - Wed, Aug 12
DEN
Denver Intl.
BOS
Logan Intl.
$206 Roundtrip, found 1 day ago
$206
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 4 from Denver Intl. to Logan Intl., returning Wed, Aug 12, priced at $206 found 1 day ago