Frontier Airlines Flight 1631 Deals & Information (2025/2026)

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Frontier Airlines Flight 1631 Route Deals From $73

The cheapest prices found with in the last 7 days for return flights were $122 and $73 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 16 - Mon, Aug 18
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$122 Roundtrip, found 7 hours ago
$122
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Aug 16 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Aug 18, priced at $122 found 7 hours ago
Thu, Aug 14 - Mon, Aug 18
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$123 Roundtrip, found 1 hour ago
$123
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Aug 14 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Aug 18, priced at $123 found 1 hour ago
Thu, Aug 14 - Sun, Aug 17
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$133 Roundtrip, found 13 hours ago
$133
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Thu, Aug 14 from Orlando Intl. to Lambert-St. Louis Intl., returning Sun, Aug 17, priced at $133 found 13 hours ago
Wed, Aug 13 - Sun, Aug 17
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$134 Roundtrip, just found
$134
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Aug 13 from Orlando Intl. to Lambert-St. Louis Intl., returning Sun, Aug 17, priced at $134 just found
Sat, Aug 9 - Mon, Aug 11
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$140 Roundtrip, found 11 hours ago
$140
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sat, Aug 9 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Aug 11, priced at $140 found 11 hours ago
Mon, Jul 28 - Sat, Aug 9
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$145 Roundtrip, found 2 days ago
$145
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Jul 28 from Orlando Intl. to Lambert-St. Louis Intl., returning Sat, Aug 9, priced at $145 found 2 days ago
Wed, Jul 30 - Sat, Aug 2
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jul 30 from Orlando Intl. to Lambert-St. Louis Intl., returning Sat, Aug 2, priced at $148 just found
Thu, Aug 28 - Mon, Sep 1
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$149 Roundtrip, found 10 hours ago
$149
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Aug 28 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $149 found 10 hours ago
Thu, Oct 9 - Mon, Oct 13
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$150 Roundtrip, found 20 hours ago
$150
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Thu, Oct 9 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Oct 13, priced at $150 found 20 hours ago
Mon, Aug 11 - Thu, Aug 14
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$151 Roundtrip, found 12 hours ago
$151
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Mon, Aug 11 from Orlando Intl. to Lambert-St. Louis Intl., returning Thu, Aug 14, priced at $151 found 12 hours ago