George Bush Intercontinental (IAH) to O'Hare International (ORD).
| Departure | Return | Price |
|---|---|---|
| 07/14/2026 | 07/21/2026 | $56 |
| 07/29/2026 | 08/05/2026 | $56 |
| 07/14/2026 | 07/22/2026 | $77 |
| 07/21/2026 | 07/28/2026 | $77 |
| 07/21/2026 | 07/29/2026 | $77 |
| 07/29/2026 | 08/04/2026 | $96 |
| 08/05/2026 | 08/12/2026 | $96 |
| 06/09/2026 | 06/17/2026 | $98 |
| 06/16/2026 | 06/24/2026 | $98 |
| 06/23/2026 | 06/30/2026 | $98 |
Based on current fares, July is the cheapest month to fly from Houston to Chicago, with average fares around $127 round trip (as low as $56).
May tends to be more expensive, averaging $220.
See the full month-by-month and day-of-week price analysis
Best Time to Fly IAH → ORDDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from Houston to Chicago is July, with average round-trip fares around $127. Fares in July start as low as $56. The most expensive month is May, averaging $220.
A nonstop flight from Houston to Chicago takes approximately 2h 30m.
The cheapest flight from Houston to Chicago currently starts at $56 round trip in economy class.
The average round-trip flight price from Houston to Chicago is $180 in economy class.
The distance is 925 miles (1488 km). with a nonstop flight time of about 2h 30m. The lowest fare currently available is $56 departing in July. The average round-trip fare is $180.
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