Frontier Airlines Flight 6921 Deals & Information (2025/2026)

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Frontier Airlines Flight 6921 Route Deals From $457

The cheapest prices found with in the last 7 days for return flights were $353 and $457 for one-way flights to General Francisco Mujica Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Feb 22 - Sun, Mar 8
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$353 Roundtrip, found 5 days ago
$353
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Feb 22 from O'Hare Intl. to General Francisco Mujica Intl., returning Sun, Mar 8, priced at $353 found 5 days ago
Mon, Mar 23 - Tue, Mar 24
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$392 Roundtrip, found 4 days ago
$392
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Mar 23 from O'Hare Intl. to General Francisco Mujica Intl., returning Tue, Mar 24, priced at $392 found 4 days ago