Frontier Airlines Flight 87 Deals & Information (2025/2026)

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Frontier Airlines Flight 87 Route Deals From $152

The cheapest prices found with in the last 7 days for return flights were $230 and $152 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 21 - Sat, Feb 28
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$230 Roundtrip, found 5 days ago
$230
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Feb 21 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 28, priced at $230 found 5 days ago
Sat, Feb 21 - Sat, Feb 28
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$235 Roundtrip, found 5 days ago
$235
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Feb 21 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 28, priced at $235 found 5 days ago
Sat, Feb 21 - Sat, Feb 28
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$293 Roundtrip, found 5 days ago
$293
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Feb 21 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 28, priced at $293 found 5 days ago
Sat, Feb 21 - Sat, Feb 28
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$294 Roundtrip, found 5 days ago
$294
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Feb 21 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Feb 28, priced at $294 found 5 days ago
Wed, Jan 21 - Wed, Feb 18
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$296 Roundtrip, found 1 day ago
$296
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Jan 21 from Cancun Intl. to Lambert-St. Louis Intl., returning Wed, Feb 18, priced at $296 found 1 day ago
Thu, Apr 9 - Sun, Apr 12
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$322 Roundtrip, found 4 days ago
$322
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Apr 9 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $322 found 4 days ago
Thu, Mar 5 - Mon, Mar 9
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$325 Roundtrip, found 3 days ago
$325
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Mar 5 from Cancun Intl. to Lambert-St. Louis Intl., returning Mon, Mar 9, priced at $325 found 3 days ago
Thu, Apr 9 - Sun, Apr 12
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$327 Roundtrip, found 4 days ago
$327
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Apr 9 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $327 found 4 days ago
Wed, Feb 18 - Sun, Feb 22
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$340 Roundtrip, found 5 days ago
$340
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Wed, Feb 18 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Feb 22, priced at $340 found 5 days ago
Thu, Apr 9 - Sun, Apr 12
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$342 Roundtrip, found 4 days ago
$342
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Apr 9 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Apr 12, priced at $342 found 4 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.