American Airlines Flight 3859 Deals & Information (2025/2026)

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American Airlines Flight 3859 Route Deals From $391

The cheapest prices found with in the last 7 days for return flights were $467 and $391 for one-way flights to Fort Smith Regional for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number AA3859 take?
AA3859 serves multiple routes, but the most common is between MCI and O'Hare Airport. If your flight is direct, you'll step off the plane in roughly 1 hour and 41 minutes. Multi-stop flights can also use this number, as can services on other routes.
What terminal does AA3859 fly out of?
If you're departing from Kansas City Intl. Airport, there's a good chance you'll board from Terminal C. The most popular route for AA3859 is Kansas City Intl. Airport to Chicago, IL Airport (ORD-O'Hare Intl.), which is a nonstop flight.
What kind of plane is on flight number AA3859?
Chances are you'll be traveling aboard an Embraer 175 if you've booked a fare on flight AA3859 from Kansas City Intl. Airport (MCI) to Chicago, IL Airport (ORD-O'Hare Intl.). This is the most commonly used type of aircraft on this route.
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 AA3859 flight with Travelocity, please visit our Customer Service Portal.