Frontier Airlines Flight 1819 Deals & Information (2025/2026)

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Frontier Airlines Flight 1819 Route Deals From $44

The cheapest prices found with in the last 7 days for return flights were $84 and $44 for one-way flights to Sky Harbor Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 6 - Tue, Dec 9
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$84 Roundtrip, just found
$84
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Dec 6 from Denver Intl. to Sky Harbor Intl., returning Tue, Dec 9, priced at $84 just found
Thu, Oct 30 - Sun, Nov 2
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$85 Roundtrip, found 1 hour ago
$85
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Denver Intl. to Sky Harbor Intl., returning Sun, Nov 2, priced at $85 found 1 hour ago
Thu, Oct 30 - Wed, Nov 5
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$94 Roundtrip, found 3 days ago
$94
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Oct 30 from Denver Intl. to Sky Harbor Intl., returning Wed, Nov 5, priced at $94 found 3 days ago
Fri, Sep 26 - Tue, Sep 30
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$96 Roundtrip, found 3 hours ago
$96
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Fri, Sep 26 from Denver Intl. to Sky Harbor Intl., returning Tue, Sep 30, priced at $96 found 3 hours ago
Thu, Sep 18 - Sun, Sep 21
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$100 Roundtrip, found 5 hours ago
$100
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Denver Intl. to Sky Harbor Intl., returning Sun, Sep 21, priced at $100 found 5 hours ago
Thu, Sep 18 - Tue, Sep 23
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$101 Roundtrip, found 5 hours ago
$101
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Sep 18 from Denver Intl. to Sky Harbor Intl., returning Tue, Sep 23, priced at $101 found 5 hours ago
Fri, Sep 19 - Sun, Sep 21
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$102 Roundtrip, found 3 hours ago
$102
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Fri, Sep 19 from Denver Intl. to Sky Harbor Intl., returning Sun, Sep 21, priced at $102 found 3 hours ago
Thu, Nov 20 - Sat, Nov 22
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$103 Roundtrip, found 18 hours ago
$103
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Thu, Nov 20 from Denver Intl. to Sky Harbor Intl., returning Sat, Nov 22, priced at $103 found 18 hours ago
Fri, Oct 24 - Sat, Nov 1
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$104 Roundtrip, found 1 hour ago
$104
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Denver Intl. to Sky Harbor Intl., returning Sat, Nov 1, priced at $104 found 1 hour ago
Tue, Sep 23 - Thu, Oct 30
DEN
Denver Intl.
PHX
Sky Harbor Intl.
$106 Roundtrip, found 1 day ago
$106
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Sep 23 from Denver Intl. to Sky Harbor Intl., returning Thu, Oct 30, priced at $106 found 1 day ago