Frontier Airlines Flight 87 Deals & Information (2026/2027)

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Frontier Airlines Flight 87 Route Deals From $159

The cheapest prices found with in the last 7 days for return flights were $244 and $159 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Feb 14 - Sat, Feb 21
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$244 Roundtrip, found 3 hours ago
$244
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Feb 14 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 21, priced at $244 found 3 hours ago
Sat, Feb 14 - Sat, Feb 21
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$250 Roundtrip, found 3 hours ago
$250
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Feb 14 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 21, priced at $250 found 3 hours ago
Thu, Feb 26 - Sun, Mar 1
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$262 Roundtrip, found 4 days ago
$262
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Feb 26 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Mar 1, priced at $262 found 4 days ago
Thu, Feb 26 - Sun, Mar 1
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$263 Roundtrip, found 4 days ago
$263
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Feb 26 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Mar 1, priced at $263 found 4 days ago
Sat, Feb 14 - Mon, Feb 23
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$263 Roundtrip, found 3 hours ago
$263
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Feb 14 from Cancun Intl. to Lambert-St. Louis Intl., returning Mon, Feb 23, priced at $263 found 3 hours ago
Tue, Feb 24 - Sat, Feb 28
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$302 Roundtrip, found 6 days ago
$302
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Tue, Feb 24 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 28, priced at $302 found 6 days ago
Sat, Feb 14 - Sat, Feb 21
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$309 Roundtrip, found 3 hours ago
$309
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Feb 14 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 21, priced at $309 found 3 hours ago
Sat, Feb 14 - Mon, Feb 23
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$317 Roundtrip, found 3 hours ago
$317
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Sat, Feb 14 from Cancun Intl. to Lambert-St. Louis Intl., returning Mon, Feb 23, priced at $317 found 3 hours ago
Sat, Jan 31 - Mon, Feb 9
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$319 Roundtrip, found 14 hours ago
$319
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Sat, Jan 31 from Cancun Intl. to Lambert-St. Louis Intl., returning Mon, Feb 9, priced at $319 found 14 hours ago
Thu, Jan 29 - Sat, Feb 7
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Jan 29 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 7, priced at $322 found 2 days ago

Frequently asked questions

What route does flight number F987 take?
F987 operates between CUN and STL directly. This journey typically takes 3 hours and 30 minutes.
How often is F987 on time?
If you're flying on Frontier Airlines flight number F987 from Cancun Airport to St. Louis, MO Airport (STL-Lambert-St. Louis Intl.), 84% of these services touch down as scheduled. On the rare occasion that there is a delay, expect a wait time of around 28 minutes on average. Thanks to the carrier's high standard of service, this trip has a 2.8-star rating.
What terminal does F987 fly out of?
Passengers on flight number F987 from Cancun Airport to STL normally depart from Terminal 4.
What kind of plane is on flight number F987?
Expect to cruise aboard an Airbus A320 if you're traveling on flight F987. Nearly all services from Cancun Airport to Lambert Field operate using this kind of aircraft.
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 F987 flight with Travelocity, please visit our Customer Service Portal.