Cheap flights from Houston to Illinois from $39

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 6/22. 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
Apr 28 — May 51

How far in advance should I book a flight from Houston to Illinois?

To save up to 122% on this flight, we recommend booking at least 49 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 $232 1-2 weeks out and tickets from $349 for flights departing within the next 72 hours.

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

Our data shows that September tends to be the cheapest month to fly to Illinois from Houston. Users have commonly found prices around $244 for the month, but tickets can be as low as $77. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Houston to Illinois (IAH - 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 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 3,086,534 searches. Data last updated April 23, 2024.
Check out some of the cheapest Spirit Airlines flights we've come across from Houston to Illinois. It's recommended that users confirm their flight details before booking.
Sat 5/1810:49 amIAH - ORD
Nonstop2h 36mSpirit Airlines
Tue 5/219:25 pmORD - IAH
1 stop11h 43mSpirit Airlines
Deal found 4/23$79
Wed 5/228:51 pmIAH - ORD
Nonstop2h 38mSpirit Airlines
Sun 5/2612:34 pmORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 4/22$84
Tue 5/711:15 amIAH - ORD
1 stop9h 30mSpirit Airlines
Wed 5/89:25 pmORD - IAH
1 stop10h 00mSpirit Airlines
Deal found 4/22$89
Thu 5/97:42 amIAH - ORD
1 stop8h 46mSpirit Airlines
Mon 5/139:25 pmORD - IAH
1 stop11h 43mSpirit Airlines
Deal found 4/21$90
Wed 5/811:54 amIAH - ORD
1 stop8h 41mSpirit Airlines
Wed 5/152:56 pmORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 4/21$91
Wed 5/811:54 amIAH - ORD
1 stop8h 41mSpirit Airlines
Tue 5/142:56 pmORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 4/21$92
Wed 5/88:51 pmIAH - ORD
Nonstop2h 38mSpirit Airlines
Sat 5/1110:55 amORD - IAH
Nonstop2h 40mSpirit Airlines
Deal found 4/22$94
Wed 5/14:32 pmIAH - ORD
Nonstop2h 39mSpirit Airlines
Tue 5/712:10 pmORD - IAH
Nonstop2h 54mSpirit Airlines
Deal found 4/22$95
Wed 5/14:32 pmIAH - ORD
Nonstop2h 39mSpirit Airlines
Sat 5/412:10 pmORD - IAH
Nonstop2h 54mSpirit Airlines
Deal found 4/23$96

Cheap Frontier flights from Houston to Illinois

Explore cheap flight options specifically provided by Frontier 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 3,086,534 searches. Data last updated April 23, 2024.
Take a gander at the lowest prices we've found on Frontier 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.
Sat 5/189:26 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 5/226:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/22$56
Sat 5/1810:52 amIAH - MDW
Nonstop2h 29mFrontier
Tue 5/287:35 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$66
Sat 5/189:26 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 5/226:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/23$68
Tue 5/148:59 pmIAH - MDW
Nonstop2h 27mFrontier
Thu 5/167:45 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$69
Sat 5/182:45 pmIAH - ORD
1 stop9h 33mFrontier
Wed 5/226:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/22$70
Thu 5/97:55 amIAH - MDW
1 stop5h 58mFrontier
Tue 5/145:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$71
Wed 5/229:18 pmIAH - ORD
Nonstop2h 40mFrontier
Sat 5/256:00 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/22$73
Wed 5/229:18 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 5/296:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/22$74
Sat 5/189:26 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 5/296:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/23$75

Cheap Houston to Illinois flights in April & May 2024

Find cheap flight options from Houston to Illinois specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,086,534 searches. Prices were last updated on April 23, 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 5/1810:52 amIAH - MDW
Nonstop2h 29mFrontier
Tue 5/287:35 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$66
Tue 5/148:59 pmIAH - MDW
Nonstop2h 27mFrontier
Sat 5/187:20 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$68
Tue 5/148:59 pmIAH - MDW
Nonstop2h 27mFrontier
Thu 5/167:45 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$69
Thu 5/97:55 amIAH - MDW
1 stop5h 58mFrontier
Tue 5/145:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$71
Tue 5/211:08 pmIAH - MDW
Nonstop2h 29mFrontier
Sat 5/257:20 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$73
Tue 4/308:59 pmIAH - MDW
Nonstop2h 27mFrontier
Tue 5/75:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$78
Sat 5/1810:52 amIAH - MDW
Nonstop2h 29mFrontier
Sun 5/197:45 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$79
Thu 5/98:59 pmIAH - MDW
Nonstop2h 27mFrontier
Tue 5/145:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$81
Wed 5/2211:30 amIAH - ORD
Nonstop2h 36mSpirit Airlines
Sun 5/262:56 pmORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 4/23$83

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 3,086,534 searches. Data last updated April 23, 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 5/1810:52 amIAH - MDW
Nonstop2h 29mFrontier
Tue 5/287:35 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$66
Tue 5/148:59 pmIAH - MDW
Nonstop2h 27mFrontier
Sat 5/187:20 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$68
Tue 5/148:59 pmIAH - MDW
Nonstop2h 27mFrontier
Thu 5/167:45 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$69
Thu 5/97:55 amIAH - MDW
1 stop5h 58mFrontier
Tue 5/145:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$71
Tue 5/211:08 pmIAH - MDW
Nonstop2h 29mFrontier
Sat 5/257:20 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$73
Tue 4/308:59 pmIAH - MDW
Nonstop2h 27mFrontier
Tue 5/75:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$78
Sat 5/1810:52 amIAH - MDW
Nonstop2h 29mFrontier
Sun 5/197:45 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$79
Thu 5/98:59 pmIAH - MDW
Nonstop2h 27mFrontier
Tue 5/145:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$81
Wed 5/2211:30 amIAH - ORD
Nonstop2h 36mSpirit Airlines
Sun 5/262:56 pmORD - IAH
Nonstop2h 47mSpirit Airlines
Deal found 4/23$83

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 3,086,534 searches. Data last updated April 23, 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.
Sat 5/189:26 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 5/226:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/22$56
Sat 5/1810:52 amIAH - MDW
Nonstop2h 29mFrontier
Tue 5/287:35 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$66
Sat 5/189:26 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 5/226:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/23$68
Tue 5/148:59 pmIAH - MDW
Nonstop2h 27mFrontier
Sat 5/187:20 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$68
Tue 5/148:59 pmIAH - MDW
Nonstop2h 27mFrontier
Thu 5/167:45 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$69
Thu 5/98:59 pmIAH - MDW
Nonstop2h 27mFrontier
Tue 5/145:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$71
Wed 5/229:18 pmIAH - ORD
Nonstop2h 40mFrontier
Sat 5/256:00 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/22$73
Tue 5/211:08 pmIAH - MDW
Nonstop2h 29mFrontier
Sat 5/257:20 amMDW - IAH
Nonstop2h 42mFrontier
Deal found 4/23$73
Wed 5/229:18 pmIAH - ORD
Nonstop2h 40mFrontier
Wed 5/296:25 amORD - IAH
Nonstop2h 45mFrontier
Deal found 4/22$74

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 3,086,534 searches. Data last updated April 23, 2024.
Check out these flights departing soon from Houston to Illinois. Users should examine the flight details to ensure there are no surprises.
Tue 4/308:59 pmIAH - MDW
Nonstop2h 27mFrontier
Tue 5/75:16 pmMDW - IAH
Nonstop2h 48mFrontier
Deal found 4/23$78
Tue 4/308:59 pmIAH - MDW
Nonstop2h 27mFrontier
Tue 5/77:00 amMDW - IAH
1 stop6h 27mFrontier
Deal found 4/23$94
Wed 5/14:32 pmIAH - ORD
Nonstop2h 39mSpirit Airlines
Tue 5/712:10 pmORD - IAH
Nonstop2h 54mSpirit Airlines
Deal found 4/22$95
Wed 5/14:32 pmIAH - ORD
Nonstop2h 39mSpirit Airlines
Sat 5/412:10 pmORD - IAH
Nonstop2h 54mSpirit Airlines
Deal found 4/23$96
Tue 4/304:04 pmIAH - ORD
Nonstop2h 39mSpirit Airlines
Wed 5/18:23 amORD - IAH
Nonstop2h 57mSpirit Airlines
Deal found 4/23$97
Wed 5/15:15 pmIAH - ORD
1 stop7h 37mFrontier
Tue 5/76:00 amORD - IAH
1 stop7h 27mFrontier
Deal found 4/22$102
Wed 5/14:32 pmIAH - ORD
Nonstop2h 39mMultiple Airlines
Tue 5/76:00 amORD - IAH
1 stop7h 27mMultiple Airlines
Deal found 4/22$103
Thu 5/27:55 amIAH - ORD
1 stop9h 32mFrontier
Tue 5/146:00 amORD - IAH
1 stop7h 27mFrontier
Deal found 4/23$104
Tue 4/303:59 pmHOU - ORD
1 stop8h 57mFrontier
Tue 5/75:51 pmORD - HOU
1 stop25h 17mFrontier
Deal found 4/23$106

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 3,086,534 searches. Data last updated April 23, 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.
Sat 6/229:53 pmIAH - ORD
Nonstop2h 40mFrontier
Deal found 4/22$39
Sat 5/48:29 pmIAH - MDW
Nonstop2h 27mFrontier
Deal found 4/23$40
Sat 5/187:02 pmIAH - ORD
1 stop9h 58mFrontier
Deal found 4/22$41
Sat 6/110:52 amIAH - MDW
Nonstop2h 29mFrontier
Deal found 4/23$41
Tue 5/73:59 pmHOU - ORD
1 stop8h 57mFrontier
Deal found 4/23$44
Wed 5/1511:30 amIAH - ORD
Nonstop2h 36mSpirit Airlines
Deal found 4/22$46
Sun 5/1911:17 amIAH - MDW
Nonstop2h 29mFrontier
Deal found 4/23$46
Tue 5/218:51 pmIAH - ORD
Nonstop2h 38mSpirit Airlines
Deal found 4/23$47
Sat 5/2510:52 amIAH - MDW
Nonstop2h 29mFrontier
Deal found 4/23$47

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 3,086,534 searches. Data last updated April 23, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$56 - $179

Route

Depart

Return

Price

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 5/18

Nonstop2h 40m

Chicago O'Hare Intl

Wed 5/22

Nonstop2h 45m

$56

Houston George Bush IntcntlChicago Midway

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Sat 5/18

Nonstop2h 29m

Chicago Midway

Tue 5/28

Nonstop2h 42m

$66

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 5/18

Nonstop2h 40m

Chicago O'Hare Intl

Wed 5/22

Nonstop2h 45m

$68

Houston George Bush IntcntlChicago Midway

IAH - MDW

IAHMDW

Houston George Bush Intcntl

Tue 5/14

Nonstop2h 27m

Chicago Midway

Sat 5/18

Nonstop2h 42m

$68

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 5/18

Nonstop2h 36m

Chicago O'Hare Intl

Tue 5/21

1 stop11h 43m

$79

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Sat 5/18

Nonstop2h 40m

Chicago O'Hare Intl

Tue 5/28

Nonstop2h 47m

$81

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 5/22

Nonstop2h 40m

Chicago O'Hare Intl

Sun 5/26

Nonstop2h 47m

$82

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Wed 5/22

Nonstop2h 38m

Chicago O'Hare Intl

Sun 5/26

Nonstop2h 47m

$84

Houston George Bush IntcntlChicago O'Hare Intl

IAH - ORD

IAHORD

Houston George Bush Intcntl

Mon 7/15

Nonstop2h 48m

Chicago O'Hare Intl

Mon 7/29

Nonstop2h 44m

$179

Flights are sorted by cheapest first

Deals found on 4/22

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

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 April 23, 2024.
Get a feel of what it's like to fly with Spirit Airlines, Frontier and United Airlines 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
6,185 reviews

Entertainment

7.8

Food

7.4

Overall

8.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.

Southwest
8.2
Very good
6,185 reviews
Southwest
8.2
Very good
6,185 reviews

Entertainment

7.8

Food

7.4

Overall

8.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.

8.1
Very good
9,111 reviews
Southwest
8.2
Very good
6,185 reviews

Entertainment

7.8

Food

7.4

Overall

8.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.

8.1
Very good
11,028 reviews
Southwest
8.2
Very good
6,185 reviews

Entertainment

7.8

Food

7.4

Overall

8.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.

7.5
Good
1,037 reviews
Southwest
8.2
Very good
6,185 reviews

Entertainment

7.8

Food

7.4

Overall

8.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.

7.4
Good
11,272 reviews
Southwest
8.2
Very good
6,185 reviews

Entertainment

7.8

Food

7.4

Overall

8.2

Comfort

8.1

Boarding

8.3

Crew

8.7

Reviews

1 / 10

We were delayed two hours. The gate staff were confused and a mess. They booked me on another flight, did not tell me and when I went to get back on the plane I no longer was able to because they booked me on some other flight later in the day. When I went back to the agent she was rude, reprinted my boarding pass for later in the day. What I needed was to be rebooked on my original flight but she could not understand that. Another agent figured it out. Southwest serves no food on any flights. It truly is a embarrassment to the airline industry. My second flight to Long Beach was worse. The flight attendant was obnoxious and extremely unprofessional. He treated everyone like they were seventh graders on a field trip. He was a terrible comedian, insisted on being on the microphone throughout the flight and would not shut up. No food on this four hour flight and no time to get food between our two flights made for seven hours without any hope of getting food.

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 Frontier for just $56, but on average you can expect to pay $74.

  • 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 $75.

  • 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, Tuesday, Wednesday, Thursday, Friday, Saturday.

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

    34 flight departures from Houston to Illinois per day on average.
    Early Morning (Midnight to 6am) - 15% of flight departures
    Morning (6am - Noon) - 26% of flight departures
    Afternoon (Noon - 6pm) - 32% of flight departures
    Evening (6pm - Midnight) - 26% 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 36m. Fly via Frontier or Spirit Airlines 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?

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

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

    Consider Austrian Airlines (100%), Brussels Airlines (98%) or ANA (96%) 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 $52. While the most popular route (Houston Hobby - Chicago O'Hare Intl) can be booked for $73 on average our data indicates $946 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), Champaign University-Willard Airport (CMI) 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 4/23.

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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.

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 3,086,534 searches. Data last updated April 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$32Average$174FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$64Average$165FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$109Average$455FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$169Average$471FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$196Average$493FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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.

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 April 23, 2024.
7%of flight departuresEarly morningMidnight to 6 am
36%of flight departuresMorning6 am to noon
46%of flight departuresAfternoonNoon to 6 pm
11%of flight departuresEvening6 pm to midnight
Midnight
6 AM
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6 PM

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

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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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