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

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Frontier Airlines Flight 87 Route Deals From $173

The cheapest prices found with in the last 7 days for return flights were $296 and $173 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 28 - Tue, Nov 4
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$296 Roundtrip, found 5 days ago
$296
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Oct 28 from Cancun Intl. to Lambert-St. Louis Intl., returning Tue, Nov 4, priced at $296 found 5 days ago
Tue, Oct 28 - Sun, Nov 2
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$301 Roundtrip, found 5 days ago
$301
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Oct 28 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Nov 2, priced at $301 found 5 days ago
Thu, Feb 19 - Tue, Feb 24
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$338 Roundtrip, found 2 days ago
$338
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Feb 19 from Cancun Intl. to Lambert-St. Louis Intl., returning Tue, Feb 24, priced at $338 found 2 days ago
Thu, Feb 19 - Tue, Feb 24
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Feb 19 from Cancun Intl. to Lambert-St. Louis Intl., returning Tue, Feb 24, priced at $344 found 2 days ago
Wed, Oct 29 - Sun, Nov 2
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$347 Roundtrip, found 4 days ago
$347
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Wed, Oct 29 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Nov 2, priced at $347 found 4 days ago
Wed, Oct 29 - Sun, Nov 2
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$358 Roundtrip, found 4 days ago
$358
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Wed, Oct 29 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Nov 2, priced at $358 found 4 days ago
Tue, Oct 28 - Sat, Nov 1
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$360 Roundtrip, found 5 days ago
$360
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Oct 28 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Nov 1, priced at $360 found 5 days ago
Fri, Nov 7 - Sun, Nov 16
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$363 Roundtrip, found 17 hours ago
$363
Roundtrip
found 17 hours ago
Select Frontier Airlines flight, departing Fri, Nov 7 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Nov 16, priced at $363 found 17 hours ago
Thu, Nov 6 - Mon, Nov 10
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$368 Roundtrip, found 1 day ago
$368
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Nov 6 from Cancun Intl. to Lambert-St. Louis Intl., returning Mon, Nov 10, priced at $368 found 1 day ago
Tue, Nov 4 - Mon, Nov 10
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$369 Roundtrip, found 3 days ago
$369
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, Nov 4 from Cancun Intl. to Lambert-St. Louis Intl., returning Mon, Nov 10, priced at $369 found 3 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.