Frontier Airlines Flight 6921 Deals & Information (2026/2027)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Frontier Airlines Flight 6921 Route Deals From $189

The cheapest prices found with in the last 7 days for return flights were $344 and $189 for one-way flights to General Francisco Mujica Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 3 - Tue, Oct 6
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$344 Roundtrip, found 1 day ago
$344
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Oct 3 from O'Hare Intl. to General Francisco Mujica Intl., returning Tue, Oct 6, priced at $344 found 1 day ago
Sat, Oct 3 - Wed, Oct 7
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$345 Roundtrip, found 11 hours ago
$345
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sat, Oct 3 from O'Hare Intl. to General Francisco Mujica Intl., returning Wed, Oct 7, priced at $345 found 11 hours ago
Sat, Oct 24 - Sat, Oct 31
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$366 Roundtrip, found 4 days ago
$366
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, Oct 24 from O'Hare Intl. to General Francisco Mujica Intl., returning Sat, Oct 31, priced at $366 found 4 days ago
Thu, Oct 22 - Thu, Oct 29
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$378 Roundtrip, found 4 days ago
$378
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, Oct 22 from O'Hare Intl. to General Francisco Mujica Intl., returning Thu, Oct 29, priced at $378 found 4 days ago
Sat, Oct 3 - Wed, Oct 7
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$382 Roundtrip, found 11 hours ago
$382
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sat, Oct 3 from O'Hare Intl. to General Francisco Mujica Intl., returning Wed, Oct 7, priced at $382 found 11 hours ago
Mon, Oct 19 - Sat, Oct 31
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$388 Roundtrip, found 1 day ago
$388
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Oct 19 from O'Hare Intl. to General Francisco Mujica Intl., returning Sat, Oct 31, priced at $388 found 1 day ago
Thu, Oct 22 - Sun, Nov 1
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$399 Roundtrip, found 1 day ago
$399
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Oct 22 from O'Hare Intl. to General Francisco Mujica Intl., returning Sun, Nov 1, priced at $399 found 1 day ago
Mon, Sep 28 - Thu, Nov 5
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$410 Roundtrip, found 4 days ago
$410
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Sep 28 from O'Hare Intl. to General Francisco Mujica Intl., returning Thu, Nov 5, priced at $410 found 4 days ago
Mon, Sep 28 - Mon, Oct 5
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$411 Roundtrip, found 12 hours ago
$411
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Mon, Sep 28 from O'Hare Intl. to General Francisco Mujica Intl., returning Mon, Oct 5, priced at $411 found 12 hours ago
Sat, Sep 26 - Sun, Oct 4
ORD
O'Hare Intl.
MLM
General Francisco Mujica Intl.
$418 Roundtrip, found 18 hours ago
$418
Roundtrip
found 18 hours ago
Select Frontier Airlines flight, departing Sat, Sep 26 from O'Hare Intl. to General Francisco Mujica Intl., returning Sun, Oct 4, priced at $418 found 18 hours ago