Chicago Klustr
Chicago airports: every one, one search
FlyKlustr searches ORD, MDW, and RFD together, so you'll see which Chicago airport is cheapest for your dates.
Airports in this Klustr
Every airport below is in the Chicago search.
| Airport | Code | Airlines in the search | Notes |
|---|---|---|---|
| O'Hare International | ORD | Southwest and other major airlines | |
| Chicago Midway | MDW | Southwest and other major airlines | |
| Chicago Rockford | RFD | Major airlines, plus Allegiant where it flies | Rockford is in the Chicago search. |
Where you can fly from Chicago
Salt Lake City from O’Hare and Midway
O’Hare to Salt Lake is the Chicago to Utah pair
Chicago to Vegas from O’Hare and Midway
O’Hare to Las Vegas, both Chicago airports when they rank
Sky Harbor from Chicago ranks O’Hare and Midway together
Midway is not a footnote on Chicago to Phoenix
Chicago to Orlando: O'Hare, Midway and Rockford, one search
Chicago to Orlando Flights: O'Hare and Midway
Chicago to UK & Ireland from O’Hare
O’Hare into Heathrow, Dublin, and the other UK gateways
Chicago to Western Europe from O’Hare
Midwest Atlantic from O’Hare into Paris, Amsterdam, and Frankfurt
Chicago to the Mediterranean from O’Hare
Rome versus Barcelona from O’Hare on the dates you have
Chicago to Hawaii from O’Hare
Honolulu and Maui from O’Hare, Midway stays off this list
Questions
- Which Chicago airport is cheapest?
- It depends on your dates. FlyKlustr searches ORD, MDW, and RFD together and ranks one combined round trip, cheapest first, so the cheapest airport is the one that wins on your dates, not the one you'd have typed first.
- Does it include Southwest, Breeze and Allegiant?
- Southwest and the other major airlines are in the search. Allegiant flies Rockford to Orlando Sanford, so it shows up on Chicago to Orlando. Breeze doesn't fly from O'Hare, Midway or Rockford. Last checked Oct 22, 2026.
- Do you sell tickets?
- No. FlyKlustr is free flight search. Book opens the airline with your cities and dates filled in, and you pay the airline, not FlyKlustr.
- What is the Chicago Klustr?
- A region, not one airport code. The Chicago Klustr covers ORD, MDW, and RFD. Pick a destination Klustr and your dates, and FlyKlustr ranks one combined round trip across every airport pair.
- How does FlyKlustr rank results?
- Results are sorted by price, cheapest first. Results show one traveler by default (ages 2 and up count as a traveler), exact dates and the cheapest no-bag fare (Basic, Light or Saver). Set Travelers to everyone flying for a family total. Book still opens the airline.