Frontier Airlines Flight WN87 Deals & Information (2025/2026)

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Frontier Airlines Flight 87 Route Deals From $144

The cheapest prices found with in the last 7 days for return flights were $254 and $144 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 26 - Sun, Oct 5
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$254 Roundtrip, found 11 hours ago
$254
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, Sep 26 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Oct 5, priced at $254 found 11 hours ago
Thu, Oct 9 - Sun, Oct 19
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$258 Roundtrip, found 10 hours ago
$258
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Oct 9 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Oct 19, priced at $258 found 10 hours ago
Thu, Oct 2 - Sun, Oct 5
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$261 Roundtrip, found 6 days ago
$261
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Oct 2 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Oct 5, priced at $261 found 6 days ago
Tue, Sep 16 - Sat, Sep 27
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$296 Roundtrip, found 2 days ago
$296
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Sep 16 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Sep 27, priced at $296 found 2 days ago
Thu, Sep 25 - Fri, Oct 3
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$301 Roundtrip, found 2 days ago
$301
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Sep 25 from Cancun Intl. to Lambert-St. Louis Intl., returning Fri, Oct 3, priced at $301 found 2 days ago
Tue, Sep 16 - Wed, Sep 24
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$305 Roundtrip, found 2 days ago
$305
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Sep 16 from Cancun Intl. to Lambert-St. Louis Intl., returning Wed, Sep 24, priced at $305 found 2 days ago
Tue, Sep 16 - Fri, Sep 26
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Sep 16 from Cancun Intl. to Lambert-St. Louis Intl., returning Fri, Sep 26, priced at $309 found 2 days ago
Wed, Sep 17 - Sat, Sep 27
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$310 Roundtrip, found 13 hours ago
$310
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Wed, Sep 17 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, Sep 27, priced at $310 found 13 hours ago
Fri, Sep 26 - Sun, Oct 5
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$320 Roundtrip, found 11 hours ago
$320
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, Sep 26 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Oct 5, priced at $320 found 11 hours ago
Thu, Oct 9 - Sun, Oct 19
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$323 Roundtrip, found 10 hours ago
$323
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Oct 9 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Oct 19, priced at $323 found 10 hours 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.