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

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Frontier Airlines Flight 1631 Route Deals From $86

The cheapest prices found with in the last 7 days for return flights were $149 and $86 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 6 - Sat, Dec 13
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$149 Roundtrip, found 12 hours ago
$149
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Sat, Dec 6 from Orlando Intl. to Lambert-St. Louis Intl., returning Sat, Dec 13, priced at $149 found 12 hours ago
Sat, Oct 11 - Sat, Oct 18
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$152 Roundtrip, found 14 hours ago
$152
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Sat, Oct 11 from Orlando Intl. to Lambert-St. Louis Intl., returning Sat, Oct 18, priced at $152 found 14 hours ago
Wed, Dec 10 - Mon, Dec 15
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$154 Roundtrip, found 8 hours ago
$154
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Wed, Dec 10 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Dec 15, priced at $154 found 8 hours ago
Sat, Oct 11 - Mon, Oct 13
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$157 Roundtrip, found 9 hours ago
$157
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Sat, Oct 11 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Oct 13, priced at $157 found 9 hours ago
Tue, Dec 9 - Fri, Dec 12
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$159 Roundtrip, found 12 hours ago
$159
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Tue, Dec 9 from Orlando Intl. to Lambert-St. Louis Intl., returning Fri, Dec 12, priced at $159 found 12 hours ago
Sat, Oct 4 - Mon, Oct 13
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$160 Roundtrip, found 5 days ago
$160
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Oct 4 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Oct 13, priced at $160 found 5 days ago
Thu, Oct 9 - Mon, Oct 13
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$162 Roundtrip, found 12 hours ago
$162
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, Oct 9 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Oct 13, priced at $162 found 12 hours ago
Fri, Oct 24 - Sat, Oct 25
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$164 Roundtrip, found 1 day ago
$164
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Oct 24 from Orlando Intl. to Lambert-St. Louis Intl., returning Sat, Oct 25, priced at $164 found 1 day ago
Mon, Dec 8 - Fri, Dec 12
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$164 Roundtrip, found 16 hours ago
$164
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Orlando Intl. to Lambert-St. Louis Intl., returning Fri, Dec 12, priced at $164 found 16 hours ago
Thu, Sep 25 - Mon, Sep 29
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$165 Roundtrip, found 10 hours ago
$165
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Sep 25 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $165 found 10 hours ago