$120 Find Cheap Flights from Chattanooga to Chicago O'Hare Airport - Compare and Save

Among airlines operating Chattanooga to Chicago O'Hare Intl Airport flights:

• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Chattanooga and Chicago O'Hare Intl Airport. The airlines offering nonstop flights on this route include:

• United Airlines
• American Airlines

Flights from Chattanooga to Chicago O'Hare Intl Airport usually depart from Chattanooga Lovell Field (CHA) and arrive at Chicago O'Hare Intl (ORD).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Chattanooga to Chicago O'Hare Intl Airport:

• Economy Class
• First Class

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $284 round-trip, compared to $314 via a layover through Detroit Metropolitan Wayne County (DTW).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Canadair (Bombardier) Regional Jet CRJ-550 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Embraer 170 variants.

One-stop flights from Chattanooga to Chicago O'Hare Intl Airport most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 46% of one-stop connections
• Detroit Metropolitan Wayne County (DTW) - 37% of one-stop connections
• Charlotte Douglas (CLT) - 17% of one-stop connections

Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

On the Chattanooga to Chicago O'Hare Intl Airport route, being flexible with your departure day can save you up to 41%. Saturday is the cheapest day at $259 round-trip on average, while Monday is the most expensive at $432: a $173 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Chattanooga to Chicago O'Hare Intl Airport flights, with 60% of flights leaving in that window. Afternoon departures account for 20%, evening flights for 20%, and night flights for 0%.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

These are the earliest and latest flight times available from Chattanooga to Chicago O'Hare Intl Airport:

• Earliest: departs at 6:00 am and lands at 8:10 am
• Latest: departs at 9:50 pm and lands at 12:00 am.

The flight takes about 2h 10m.

Last-minute fares on this route - booked within 2 weeks of departure - run 32% above the route average of $284. Book 4 weeks before departure for the lowest fares.

A nonstop flight from Chattanooga to Chicago O'Hare Intl Airport takes 2h 10m, covering 501 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $262 to $1,607. That means the highest observed fare was about 6x higher than the lowest one.

One-way fares from Chattanooga to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $214, which is 28% below the typical average for this route.

Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 4h 24m, compared with 4h 59m via Charlotte Douglas (CLT) and 5h 30m via Detroit Metropolitan Wayne County (DTW).

Chicago O'Hare Intl Airport is 1 hour behind Chattanooga (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Round-trip flights from Chattanooga to Chicago O'Hare Intl Airport range from $249 to $377, with an average of $284 over the past 12 months. Anything below $249 counts as a good deal.

American Airlines is the only airline on the Chattanooga to Chicago O'Hare Intl Airport route offering in-flight Wi-Fi. Pricing depends on fare class.