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Cheap Flights from Houston to Illinois
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Children 2-11
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Average price per month
- Low Season: November
- High Season: August
- Prices for this route are volatile and fluctuate from month to month.
- The cheapest flights are usually bought in November, June and February.
- High season months are October, March and August. However, it's not the rule and you should always search current flight deals.
- For example, the flight from Houston to Illinois is currently 61% cheaper than average.
Price increase as travel date approaches
- Flight prices for this route increase by 49% if you book last minute. Hover on the graph above to see for yourself!.
- To grab the lowest price possible, you should buy your flight around 33 days before departure!
- Consider booking at least 17 days before departure to increase your chances of getting a low price.
- Generally, it's safe to book between 90 and 60 days in advance.
Houston to Illinois Flight Information
| Flights Depart From | Houston (IAH) |
| Flights Arriving To | Illinois (ORD) |
| Distance | 1490.96 km |
| Current Discount | 61 % |
| Average Price | $175.44 |
| Good Deal | $95.97 |
| Cheapest Airlines | Frontier Airlines, American Airlines |
| Popular Airlines | Delta Air Lines, American Airlines, Frontier Airlines |
| Flight Duration | 02 hours 09 minutes |
| Flights Depart From |
| Houston (IAH) |
| Flights Arrive In |
| Illinois (ORD) |
| Distance |
| 1490.96 km |
| Flight Duration |
| 02 hours 09 minutes |
| Current Discount |
| 61 % |
| Average Price |
| $175.44 |
| Good Deal |
| $95.97 |
| Cheapest Airlines |
| Frontier Airlines, American Airlines |
| Popular Airlines |
| Delta Air Lines, American Airlines, Frontier Airlines |
Most Reliable Airlines flying to Illinois
- According to our data, Delta Air Lines, American Airlines and Frontier Airlines have the highest overall rating.
- The following airlines have the highest chance of on time arrivals: Delta Air Lines, American Airlines and Frontier Airlines.
- If customer service is important for you then you should consider flying with Delta Air Lines, American Airlines and Frontier Airlines.
| Airline | Overall Rating | On time arrival | Check-in & Boarding | Cleanliness | Customer Service | Food & Beverage | Entertainment | Legroom | Seat Comfort |
|---|---|---|---|---|---|---|---|---|---|
Delta Air Lines |
3.8 | 4.5 | 4.0 | 4.0 | 4.0 | 3.5 | 4.0 | 3.5 | 3.5 |
American Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.5 | 3.0 |
Frontier Airlines |
2.8 | 3.5 | 3.5 | 3.5 | 3.0 | 2.0 | 1.5 | 2.5 | 2.5 |
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.0
Cleanliness
4.0
Customer Service
4.0
Food & Beverage
3.5
Entertainment
4.0
Legroom
3.5
Seat Comfort
3.5
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.5
Seat Comfort
3.0
Overall Rating
3.0
On time arrival
3.5
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.0
Food & Beverage
2.0
Entertainment
1.5
Legroom
2.5
Seat Comfort
2.5
Good to know:
Enter your preferred departure airport and travel dates into the search form above to unlock the latest Illinois flight deals.
Track the flight prices from Houston to Illinois by subscribing to Fare Alerts to never miss the best deals possible.
Did you know that you could find even better deals when you use our Mobile App?. How to get the cheapest flight to Illinois?
Currently there is a 61% discount on flights to Illinois. This price won't stay too long and you should consider buying now.
Awesome Deals
notifications_active In the past few days the following airlines offered the lowest prices from Houston to Illinois: Frontier Airlines and American Airlines..
Frontier AirlinesMon, 04 Nov IAH ORD
Mon, 09 Dec ORD IAH Trip duration: 35 days$92.97
Frontier AirlinesMon, 04 Nov IAH ORD
Thu, 07 Nov ORD IAH Trip duration: 3 days$94.97
Frontier AirlinesFri, 06 Dec IAH ORD
Sun, 08 Dec ORD IAH Trip duration: 2 days$99.97
Frontier AirlinesFri, 04 Oct IAH ORD
Sun, 13 Oct ORD IAH Trip duration: 9 days$121.97
Frontier AirlinesMon, 25 Nov IAH ORD
Tue, 03 Dec ORD IAH Trip duration: 8 days$154.97
Frontier AirlinesFri, 29 Nov IAH ORD
Sun, 01 Dec ORD IAH Trip duration: 2 days$207.98
Frontier AirlinesFri, 29 Nov IAH ORD
Sun, 01 Dec ORD IAH Trip duration: 2 days$209.98
Frontier AirlinesSun, 24 Nov IAH ORD
Sat, 30 Nov ORD IAH Trip duration: 6 days$213.97
Frontier AirlinesFri, 29 Nov IAH ORD
Sun, 01 Dec ORD IAH Trip duration: 2 days$224.98
Frontier AirlinesFri, 29 Nov IAH ORD
Sun, 01 Dec ORD IAH Trip duration: 2 days$237.97
American AirlinesFri, 02 May IAH ORD
Sun, 11 May ORD IAH Trip duration: 9 days$396.94
American AirlinesFri, 02 May IAH ORD
Sun, 11 May ORD IAH Trip duration: 9 days$396.94
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Frequently Asked Questions
- Which airlines offer cheap airfare from Houston to Illinois?That may change at any time. But in the past 14 days, the cheapest tickets we've found were with Frontier Airlines and American Airlines.
- Which airlines fly from Houston to Illinois most often?Delta Air Lines, American Airlines and Frontier Airlines are the top.
- Which airport will I be flying from in Houston?When departing from Houston you'll be flying out of George Bush Intercontinental.
- Which airport will I be flying from in Illinois?When departing from Illinois you'll be flying out of Chicago O'hare International.
- How is Justfly.com so good at finding cheap flights?We've taken an oath of secrecy and vowed never to say. Just kidding. Our team and technology allows us to browse through hundreds of airlines and hundreds of thousands of flights to find the lowest prices. Then we pass the savings on to you.
- Can Justfly.com help me save money in any other way?We're glad you asked. We help you save money with our Fare Alerts, Price Trend charts and multi-ticket bookings. We also help you save on hotels and car rentals.
- How many airlines does Justfly.com search to find affordable flights?We typically search over 400 airlines.
- Can Justfly.com's Price Trend tool really tell me the best time to buy tickets?Absolutely! That's why we've made it accessible to you.
- Will the price of my flight change?Flight prices and availability change often. To counter this, we update the important data as often as possible every step of the way.
- How will I receive my booking confirmation and travel information?We'll send you an email with the important details!
- Can you cancel or change Justfly.com flights?You sure can. But give us a call first. We'll do our best to find a solution. However, in some cases, if we cancel your booking, we'll have to charge an administrative fee of $75 (domestic), $125 (trans-border between Canada and USA) and $200 (international).
- Are Justfly.com's tickets refundable?All bookings are currently non-refundable.
- How do I contact Justfly.com?To find answers to all of your questions, click here to visit our support page.