American Airlines Flight 2639 Deals & Information (2025/2026)

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American Airlines Flight 2639 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $380 and $204 for one-way flights to Licenciado Gustavo Diaz Ordaz Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

What route does flight number AA2639 take?
You’ll be arriving into San Francisco Airport from O’Hare Airport if you’re traveling on flight number AA2639. You’ll be airborne for 4 hours and 40 minutes during this trip. What’s more, the service conveniently operates non-stop.
How often is AA2639 on time?
American Airlines flight number AA2639 from ORD to San Francisco, CA Airport (SFO-San Francisco Intl.) operates on time 88% of the time — so you can relax knowing that you will touch down at your destination ASAP. If the flight is late, you’re likely to wait about 22 minutes. This route has a 3.1-star rating.
What terminal does AA2639 fly out of?
You’ll likely be climbing aboard the plane at Terminal 3 if you’re flying on AA2639 direct from O’Hare Intl. Airport (ORD) to San Francisco Intl. Airport (SFO).
What kind of plane is on flight number AA2639?
Get set to cruise aboard a Boeing 737-800 if you’re booked on flight AA2639. Nearly all services from Chicago, IL Airport (ORD-O’Hare Intl.) to San Francisco Airport are operated using this model of aircraft.
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 AA2639 flight with Travelocity, please visit our Customer Service Portal.