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Cheap flights from Houston to Illinois from $34

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
HOU — ORD
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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How far in advance should I book a flight from Houston to Illinois?

To save up to 127% on this flight, we recommend booking at least 32 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Houston to Illinois from $234 1-2 weeks out and tickets from $416 for flights departing within the next 72 hours.

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

Our data shows that April tends to be the cheapest month to fly to Illinois from Houston. Users have commonly found prices around $226 for the month, but tickets can be as low as $58. Due to multiple factors, prepare for potentially higher prices in March.

What is the cheapest time of day to fly from IAH to IL?

When flying from Houston to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap American Airlines flights from Houston to Illinois

Explore cheap flight options specifically provided by American Airlines for the route between Houston and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Check out some of the cheapest American Airlines flights we've come across from Houston to Illinois. It's recommended that users confirm their flight details before booking.
Sat 8/105:00 amHOU - ORD
1 stop4h 35mAmerican Airlines
Sat 8/241:26 pmORD - HOU
1 stop4h 39mAmerican Airlines
Deal found 5/29$268
Tue 6/46:23 pmHOU - ORD
1 stop4h 37mAmerican Airlines
Thu 6/65:00 amORD - HOU
1 stop4h 44mAmerican Airlines
Deal found 5/29$296
Sun 6/95:00 amHOU - ORD
1 stop4h 55mAmerican Airlines
Wed 6/1912:00 pmORD - HOU
1 stop5h 56mAmerican Airlines
Deal found 5/28$302

Cheap Spirit Airlines flights from Houston to Illinois

Explore cheap flight options specifically provided by Spirit Airlines for the route between Houston and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Take a gander at the lowest prices we've found on Spirit Airlines flights from Houston to Illinois. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 7/164:39 pmIAH - ORD
Nonstop2h 46mSpirit Airlines
Wed 7/172:11 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/28$63
Tue 9/109:22 pmIAH - ORD
Nonstop2h 36mSpirit Airlines
Thu 9/1212:10 pmORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 5/30$66
Wed 8/289:22 pmIAH - ORD
Nonstop2h 36mSpirit Airlines
Sat 8/316:20 amORD - IAH
Nonstop2h 42mSpirit Airlines
Deal found 5/30$68
Tue 7/164:39 pmIAH - ORD
Nonstop2h 46mSpirit Airlines
Wed 7/175:10 amORD - IAH
Nonstop2h 45mSpirit Airlines
Deal found 5/29$69
Tue 7/1610:15 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 7/245:10 amORD - IAH
Nonstop2h 45mSpirit Airlines
Deal found 5/29$70
Mon 9/94:04 pmIAH - ORD
Nonstop2h 37mSpirit Airlines
Tue 9/105:00 amORD - IAH
1 stop7h 52mSpirit Airlines
Deal found 5/29$74
Wed 6/2610:50 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Tue 7/22:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$76
Sat 6/2210:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/262:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/28$78
Wed 6/1210:02 amIAH - ORD
1 stop10h 45mSpirit Airlines
Tue 7/22:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/30$79

Cheap Houston to Illinois flights in May & June 2024

Find cheap flight options from Houston to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Prices were last updated on May 30, 2024.
These are some of the best deals we've found on flights to Illinois in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Sat 6/810:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/127:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Deal found 5/29$65
Tue 6/1110:50 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Tue 6/252:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/28$67
Sat 6/810:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/122:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$70
Wed 6/59:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Tue 6/117:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Deal found 5/29$71
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 6/126:15 amORD - IAH
Nonstop2h 44mFrontier
Deal found 5/30$72
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 6/126:15 amORD - IAH
Nonstop2h 44mFrontier
Deal found 5/29$74
Sat 6/89:55 pmIAH - ORD
Nonstop2h 38mFrontier
Wed 6/126:15 amORD - IAH
Nonstop2h 44mFrontier
Deal found 5/29$75
Wed 6/2610:50 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Tue 7/22:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$76
Sat 6/89:55 pmIAH - ORD
Nonstop2h 38mMultiple Airlines
Tue 6/117:33 amORD - IAH
Nonstop2h 49mMultiple Airlines
Deal found 5/29$77

Houston to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Houston and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
These are some of the best deals we've found on flights to Illinois in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Tue 7/164:39 pmIAH - ORD
Nonstop2h 46mSpirit Airlines
Wed 7/172:11 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/28$63
Sat 6/810:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/127:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Deal found 5/29$65
Sat 9/79:19 pmIAH - ORD
Nonstop2h 39mFrontier
Wed 9/116:15 amORD - IAH
Nonstop2h 46mFrontier
Deal found 5/30$67
Tue 7/164:39 pmIAH - ORD
Nonstop2h 46mSpirit Airlines
Wed 7/175:10 amORD - IAH
Nonstop2h 45mSpirit Airlines
Deal found 5/29$69
Sat 6/810:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/122:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$70
Wed 6/59:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Tue 6/117:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Deal found 5/29$71
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 6/126:15 amORD - IAH
Nonstop2h 44mFrontier
Deal found 5/30$72
Mon 9/94:04 pmIAH - ORD
Nonstop2h 37mSpirit Airlines
Tue 9/105:00 amORD - IAH
1 stop7h 52mSpirit Airlines
Deal found 5/29$74
Sat 6/89:55 pmIAH - ORD
Nonstop2h 38mFrontier
Wed 6/126:15 amORD - IAH
Nonstop2h 44mFrontier
Deal found 5/29$75

Non-stop flights to Illinois from Houston

Discover non-stop flight options from Houston to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
If you're seeking options on non-stop flights from Houston to Illinois, check out these fares. Select from other flights from Houston to Illinois by using the search form above.
Tue 7/164:39 pmIAH - ORD
Nonstop2h 46mSpirit Airlines
Wed 7/172:11 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/28$63
Sat 9/79:19 pmIAH - ORD
Nonstop2h 39mFrontier
Wed 9/116:15 amORD - IAH
Nonstop2h 46mFrontier
Deal found 5/30$67
Tue 7/164:39 pmIAH - ORD
Nonstop2h 46mSpirit Airlines
Wed 7/175:10 amORD - IAH
Nonstop2h 45mSpirit Airlines
Deal found 5/29$69
Wed 6/269:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Tue 7/97:33 amORD - IAH
Nonstop2h 49mSpirit Airlines
Deal found 5/29$70
Tue 7/29:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 7/102:11 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$74
Wed 6/2610:50 amIAH - ORD
Nonstop2h 50mSpirit Airlines
Tue 7/22:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$76
Sat 6/2210:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/262:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/28$78
Mon 6/109:21 pmIAH - ORD
Nonstop2h 38mFrontier
Wed 6/126:15 amORD - IAH
Nonstop2h 44mFrontier
Deal found 5/29$81
Tue 6/111:08 pmIAH - MDW
Nonstop2h 28mFrontier
Tue 6/187:45 amMDW - IAH
Nonstop2h 41mFrontier
Deal found 5/28$81

Houston to Illinois flights leaving soon

Find last-minute flight options from Houston to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Check out these flights departing soon from Houston to Illinois. Users should examine the flight details to ensure there are no surprises.
Sat 6/88:30 pmIAH - MDW
Nonstop2h 28mFrontier
Tue 6/117:45 amMDW - IAH
Nonstop2h 41mFrontier
Deal found 5/29$73
Wed 6/59:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/129:37 pmORD - IAH
1 stop11h 49mSpirit Airlines
Deal found 5/28$82
Thu 6/611:12 amIAH - MDW
Nonstop2h 28mFrontier
Tue 6/117:45 amMDW - IAH
Nonstop2h 41mFrontier
Deal found 5/29$83
Wed 6/59:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/129:37 pmORD - IAH
1 stop11h 49mSpirit Airlines
Deal found 5/29$84
Sat 6/810:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Wed 6/129:37 pmORD - IAH
1 stop11h 49mSpirit Airlines
Deal found 5/29$85
Tue 6/41:08 pmIAH - MDW
Nonstop2h 29mFrontier
Tue 6/117:45 amMDW - IAH
Nonstop2h 41mFrontier
Deal found 5/29$86
Sat 6/89:55 pmIAH - ORD
Nonstop2h 38mMultiple Airlines
Tue 6/117:33 amORD - IAH
Nonstop2h 49mMultiple Airlines
Deal found 5/29$87
Sat 6/89:55 pmIAH - ORD
Nonstop2h 38mFrontier
Wed 6/196:15 amORD - IAH
Nonstop2h 44mFrontier
Deal found 5/28$88
Sat 6/810:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Thu 6/202:57 pmORD - IAH
Nonstop2h 48mSpirit Airlines
Deal found 5/29$89

One-way flights to Illinois from Houston

Search for one-way flight options from Houston to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
Users in need of a one-way flight from Houston to Illinois can choose from these deals. Users can also find round-trip Houston to Illinois flights by using the search form above.
Tue 8/2711:22 amIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/30$34
Thu 7/411:12 amIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$35
Wed 6/59:00 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/29$38
Sat 6/810:27 pmIAH - ORD
Nonstop2h 50mSpirit Airlines
Deal found 5/28$39
Sat 6/88:30 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/28$39
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Deal found 5/29$40
Tue 6/115:15 amIAH - ORD
1 stop11h 13mSpirit Airlines
Deal found 5/29$42
Tue 7/21:08 pmIAH - MDW
Nonstop2h 28mFrontier
Deal found 5/29$43
Wed 6/59:19 pmIAH - ORD
Nonstop2h 40mFrontier
Deal found 5/29$44

Find flights from Houston to Illinois within your budget

Customize your flight search to find flights from Houston to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$63 - $90

Route

Depart

Return

Price

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 7/16

Nonstop2h 46m

Chicago O'Hare Intl

Wed 7/17

Nonstop2h 48m

$63

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 9/10

Nonstop2h 36m

Chicago O'Hare Intl

Thu 9/12

Nonstop2h 47m

$66

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 9/7

Nonstop2h 39m

Chicago O'Hare Intl

Wed 9/11

Nonstop2h 46m

$67

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 8/28

Nonstop2h 36m

Chicago O'Hare Intl

Sat 8/31

Nonstop2h 42m

$68

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 7/16

Nonstop2h 46m

Chicago O'Hare Intl

Wed 7/17

Nonstop2h 45m

$69

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Tue 7/16

Nonstop2h 50m

Chicago O'Hare Intl

Wed 7/24

Nonstop2h 45m

$70

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 6/10

Nonstop2h 38m

Chicago O'Hare Intl

Wed 6/12

Nonstop2h 44m

$81

Houston George Bush IntcntlChicago Midway

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Tue 6/11

Nonstop2h 28m

Chicago Midway

Tue 6/18

Nonstop2h 41m

$81

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Thu 7/4

Nonstop2h 38m

Chicago O'Hare Intl

Sat 7/6

Nonstop2h 42m

$90

Flights are sorted by cheapest first

Deals found on 5/28

No data available for this route at this time. Please check back soon.

Best time to book a flight from Houston to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Houston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 30, 2024.
Get a feel of what it's like to fly with American Airlines, Spirit Airlines and Frontier from Houston to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,956 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Southwest
8.2
Very good
5,956 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Delta
8.0
Very good
10,457 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Allegiant Air
7.5
Good
1,002 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

United Airlines
7.4
Good
10,777 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

American Airlines
7.3
Good
14,284 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Entertainment

7.8

Boarding

8.3

Food

7.3

Comfort

8.1

Crew

8.7

Overall

8.2

Reviews

1 / 10

Wish the there were an electrical outlet to plug the phone. it died within 10 minutes of being in the air.

Related info for your journey

Find useful and relevant information for your journey from Houston to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Houston to Illinois for under $100 on Cheapflights?

    Yes, there are multiple flights from Houston to Illinois for under $100. The cheapest flight booked recently is on Spirit Airlines for just $63, but on average you can expect to pay $76.

  • Are there nonstop flights from Houston to Illinois for under $100 on Cheapflights?

    Cheapflights has at least 20 direct flights from Houston to Illinois under $100. A good price for a nonstop flight from Houston to Illinois is less than $79.

  • Are there last-minute flights available from Houston to Illinois for under $100?

    There are currently 20+ open flights from Houston to Illinois within the next 7 days for less than $100.

  • What days are nonstop flights available from Houston to Illinois?

    Nonstop flights can be found on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

  • How many flights depart from Houston to Illinois on average per day?

    45 flight departures from Houston to Illinois per day on average.
    Early Morning (Midnight to 6am) - 29% of flight departures
    Morning (6am - Noon) - 20% of flight departures
    Afternoon (Noon - 6pm) - 42% of flight departures
    Evening (6pm - Midnight) - 9% of flight departures

  • How long is the flight from Houston to Illinois?

    There are many flights that can get you from Houston to Illinois in 2h 39m. Fly via Spirit Airlines or Frontier to get the fastest option. The distance between Houston and Illinois is about 930 mi. All flights are typically nonstop.

  • What are the most popular routes from Houston to Illinois?

    While some choose either Houston George Bush Intcntl - Chicago O'Hare Intl or Houston Hobby - Chicago Midway, Houston Hobby - Chicago O'Hare Intl is the most popular route from Houston to Illinois.

  • What are the most reliable airlines from Houston to Illinois?

    Consider Austrian Airlines (87%), ANA (87%) or Brussels Airlines (87%) when booking your flight. These represent the most reliable airlines when flying from Houston to Illinois.

  • What are the cheapest flights from Houston to Illinois?

    Looking at all options, your cheapest flight can be booked for $35. While the most popular route (Houston Hobby - Chicago O'Hare Intl) can be booked for $67 on average our data indicates $2,023 when flying from Houston to Illinois.

  • What does IAH to ORD mean?

    This is defined as Houston George Bush Intcntl Airport (IAH) and Chicago O'Hare Intl Airport (ORD). Codes like Chicago O'Hare Intl Airport are often used to just call airports uniquely. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Houston to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Houston to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Houston to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Houston to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Houston to Illinois that include hotel bookings?

    Yes. In addition to deals on Houston to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Illinois.

  • Can I find deals for business class flights from Houston to Illinois?

    Yes. Cheapflights offers flight deals from Houston to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Houston to Illinois that allow pets onboard?

    Many airlines flying from Houston to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Houston to Illinois?

    Yes, you can often find last-minute deals on Houston to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Houston to Illinois flight deals updated?

    The Houston to Illinois flight deals you see on this page were last updated on 5/30.

  • What are the most popular airlines that fly from Houston to Illinois?

    American Airlines, Delta and Frontier are the most popular airlines when flying from Houston to Illinois.

  • What is the cheapest month to book a flight from Houston to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Houston to Illinois (average of $244). Flying from Houston to Illinois in June is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Houston to Illinois
See prices for flight routes from nearby airports that may be better suited for you.

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Top 5 airlines flying from Houston to Illinois

Discover the top 5 airlines that operate flights from Houston to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,784,634 searches. Data last updated May 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$29Average$156FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$63Average$155FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$109Average$426FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Houston to Illinois by cabin class

Find flights from Houston to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Houston to Illinois

Find hourly flight availability from Houston to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 30, 2024.
11%of flight departuresEarly morningMidnight to 6 am
32%of flight departuresMorning6 am to noon
44%of flight departuresAfternoonNoon to 6 pm
13%of flight departuresEvening6 pm to midnight
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Fly with Cheapflights

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How does Cheapflights help users find flights from Houston to Illinois?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Illinois from Houston today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Houston to Illinois?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Houston.

Can Cheapflights find flights from Houston to Illinois with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Houston to Illinois, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Houston to Illinois become cheaper?

Not ready to book yet? You can track prices for flights from Houston to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.

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