American Airlines Flight 91 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 91 Route Deals From $957

The cheapest prices found with in the last 7 days for return flights were $578 and $957 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 29 - Tue, Nov 4
LHR
Heathrow
ORD
O'Hare Intl.
$578 Roundtrip, found 4 hours ago
$578
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Oct 29 from Heathrow to O'Hare Intl., returning Tue, Nov 4, priced at $578 found 4 hours ago