Getting to Univ. of Chicago from the airports:
There are two major airports in the Chicago area, namely Midway and O'Hare.
Midway is by far the fastest and least stressful to get to, which might be worth keeping in mind when choosing between flights. (Count on 1hr extra travel time to O'Hare.) Southwest and ATA both fly to midway, and usually offer good fares.
Getting here from Midway: By taxi the ride takes 20-30 min. and cost roughly $20. (If you haven't been to the university before this probably the best option.) There is also a convenient bus service: Bus 55 Garfield runs frequently between Midway Airport and the university. To find the bus at the airport follow the signs to trains/buses to the city. Find the bus 55 Garfield, and remember to ask the driver if it runs all the way to the university (since occasionally the bus only goes half way). The bus runs along 55th street. Get off at 55th Street and University Ave, and walk south on University until you get to Eckhart Hall , where the math department is located. The bus ride takes 45 min. plus some time getting to the bus stop and waiting for the bus.
Getting here from O'Hare: There is a shuttle service called Omega Shuttle, which can be found at the ground transportation desk. It runs once an hour and cost $20. The ride takes roughly 1hr20min. Their homepage, with a schedule, is here . A taxi is around $50 and takes in the vicinity of an hour, depending on traffic (35 minutes during perfect off-peak conditions, but up to 1h30min during daytime hours on an average bad day). It is possible to get from O'Hare to the university just by public transportation, which takes between 1h30min and 2h, but is not really recommended unless you know your way around. If you feel like it, follow the links from
here for more information.