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

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Frontier Airlines Flight 87 Route Deals From $194

The cheapest prices found with in the last 7 days for return flights were $368 and $194 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 26 - Sun, Jun 29
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$368 Roundtrip, found 4 days ago
$368
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Jun 26 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Jun 29, priced at $368 found 4 days ago
Thu, Jun 26 - Sun, Jun 29
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$371 Roundtrip, found 4 days ago
$371
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Jun 26 from Cancun Intl. to Lambert-St. Louis Intl., returning Sun, Jun 29, priced at $371 found 4 days ago
Thu, May 8 - Wed, May 14
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$378 Roundtrip, found 6 days ago
$378
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, May 8 from Cancun Intl. to Lambert-St. Louis Intl., returning Wed, May 14, priced at $378 found 6 days ago
Fri, May 16 - Mon, May 19
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$403 Roundtrip, found 15 hours ago
$403
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Fri, May 16 from Cancun Intl. to Lambert-St. Louis Intl., returning Mon, May 19, priced at $403 found 15 hours ago
Thu, Jun 5 - Wed, Jun 11
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$415 Roundtrip, found 12 hours ago
$415
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, Jun 5 from Cancun Intl. to Lambert-St. Louis Intl., returning Wed, Jun 11, priced at $415 found 12 hours ago
Thu, May 8 - Wed, May 14
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$426 Roundtrip, found 6 days ago
$426
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, May 8 from Cancun Intl. to Lambert-St. Louis Intl., returning Wed, May 14, priced at $426 found 6 days ago
Fri, Jun 27 - Fri, Jul 4
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$440 Roundtrip, found 5 days ago
$440
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Jun 27 from Cancun Intl. to Lambert-St. Louis Intl., returning Fri, Jul 4, priced at $440 found 5 days ago
Thu, Jun 5 - Wed, Jun 11
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$456 Roundtrip, found 12 hours ago
$456
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, Jun 5 from Cancun Intl. to Lambert-St. Louis Intl., returning Wed, Jun 11, priced at $456 found 12 hours ago
Fri, May 9 - Sat, May 17
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$465 Roundtrip, found 3 days ago
$465
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, May 9 from Cancun Intl. to Lambert-St. Louis Intl., returning Sat, May 17, priced at $465 found 3 days ago
Thu, Jun 5 - Wed, Jun 11
CUN
Cancun Intl.
STL
Lambert-St. Louis Intl.
$466 Roundtrip, found 12 hours ago
$466
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, Jun 5 from Cancun Intl. to Lambert-St. Louis Intl., returning Wed, Jun 11, priced at $466 found 12 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.