Cheap flights from Houston to Chicago

One-way fares from $89 · HOU → CHI · prices found by travellers in the last 48 hours

Compare all dates Chicago → Houston
Cheapest fare
$89

Frontier Airlines · Fri, Dec 11

Cheapest month
December

from $89

Direct flights
Yes

Frontier Airlines

Flight time
2h 50m

1,520 km

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Cheapest month to fly from Houston to Chicago

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $91
  2. December 2026 Cheapest $89
  3. January 2027 $134
  4. March 2027 $211

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart21:38 Fri, Dec 11IAH → ORD 4h 23m · 1 stop
$89one way, per person
View deal
See every date in December 2026 →

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Getting around

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About flights from Houston to Chicago

Houston (HOU) and Chicago (CHI) are about 1,520 km apart. Direct flights take around 2h 50m, and recent direct fares were with Frontier Airlines. Over the next few months, one-way fares start from $89, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Houston to Chicago?

The cheapest one-way fare we've seen recently is $89 with Frontier Airlines, departing Friday, December 11, 2026. Over the coming months, the lowest fare in each month ranges from $89 to $211.

What is the cheapest month to fly from Houston to Chicago?

December 2026 currently has the lowest fares, from $89 one way.

Are there direct flights from Houston to Chicago?

Yes. Recent direct fares were with Frontier Airlines.

How long is the flight from Houston to Chicago?

A direct flight takes about 2h 50m. Houston and Chicago are around 1,520 km apart.

Which airlines fly from Houston to Chicago?

Recent fares on this route were with Frontier Airlines.

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