American Airlines Flight AA3905 Deals & Information (2025/2026)

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

American Airlines Flight 3905 Route Deals From $115

The cheapest prices found with in the last 7 days for return flights were $194 and $115 for one-way flights to Missoula Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Aug 17 - Sat, Aug 23
ORD
O'Hare Intl.
MSO
Missoula Intl.
$194 Roundtrip, found 10 hours ago
$194
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Sun, Aug 17 from O'Hare Intl. to Missoula Intl., returning Sat, Aug 23, priced at $194 found 10 hours ago
Sun, Aug 17 - Sat, Aug 23
ORD
O'Hare Intl.
MSO
Missoula Intl.
$204 Roundtrip, found 10 hours ago
$204
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Sun, Aug 17 from O'Hare Intl. to Missoula Intl., returning Sat, Aug 23, priced at $204 found 10 hours ago
Tue, Sep 16 - Sat, Sep 20
ORD
O'Hare Intl.
MSO
Missoula Intl.
$220 Roundtrip, found 2 days ago
$220
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep 16 from O'Hare Intl. to Missoula Intl., returning Sat, Sep 20, priced at $220 found 2 days ago
Tue, Sep 16 - Sat, Sep 20
ORD
O'Hare Intl.
MSO
Missoula Intl.
$250 Roundtrip, found 2 days ago
$250
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep 16 from O'Hare Intl. to Missoula Intl., returning Sat, Sep 20, priced at $250 found 2 days ago
Sun, Aug 17 - Sat, Aug 23
ORD
O'Hare Intl.
MSO
Missoula Intl.
$254 Roundtrip, found 10 hours ago
$254
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Sun, Aug 17 from O'Hare Intl. to Missoula Intl., returning Sat, Aug 23, priced at $254 found 10 hours ago
Sun, Aug 17 - Sat, Aug 23
ORD
O'Hare Intl.
MSO
Missoula Intl.
$264 Roundtrip, found 10 hours ago
$264
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Sun, Aug 17 from O'Hare Intl. to Missoula Intl., returning Sat, Aug 23, priced at $264 found 10 hours ago