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Cheap flights from Islip (ISP) to Illinois from $70

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 5/14. 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.
ISP — ORD
May 9 — May 161
From?
To?
Thu 5/9
Thu 5/16
1 adult, Economy
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How far in advance should I book a flight from Islip, New York to Illinois?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 48 days in advance, which can save you up to 76% on flights from Islip, New York to Illinois compared to booking the week you need them. Waiting 48 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $302. For sooner than that we have options available in the next 3 days from $415.

What is the cheapest month to fly from Islip, New York to Illinois?

Our data shows that February tends to be the cheapest month to fly to Illinois from Islip, New York. Users have commonly found prices around $268 for the month, but tickets can be as low as $107. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Islip, New York to Illinois (ISP - IL)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Illinois as you normally would.

Cheap Frontier flights from Islip to Illinois

Explore cheap flight options specifically provided by Frontier for the route between Islip 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 2,864,334 searches. Data last updated May 4, 2024.
Tue 5/146:05 pmISP - ORD
1 stop7h 54mFrontier
Tue 5/215:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$140
Sat 5/184:49 pmISP - ORD
1 stop9h 09mFrontier
Sun 5/197:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/3$154
Fri 5/314:49 pmISP - ORD
1 stop9h 19mFrontier
Sun 6/25:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$174
Thu 6/611:37 amISP - ORD
1 stop6h 10mFrontier
Fri 6/75:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/3$176
Fri 9/275:25 pmISP - ORD
1 stop24h 21mFrontier
Sun 9/295:56 pmORD - ISP
1 stop25h 49mFrontier
Deal found 5/3$177
Mon 5/204:49 pmISP - ORD
1 stop9h 19mFrontier
Thu 5/237:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/2$194
Sun 5/194:49 pmISP - ORD
1 stop9h 19mFrontier
Tue 5/215:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$199
Sun 6/24:49 pmISP - ORD
1 stop9h 19mFrontier
Sun 6/98:02 pmORD - ISP
1 stop10h 38mFrontier
Deal found 5/3$216
Thu 7/410:23 pmISP - STL
1 stop9h 39mFrontier
Mon 7/89:20 pmSTL - ISP
1 stop10h 06mFrontier
Deal found 5/2$225

Cheap Islip to Illinois flights in May & June 2024

Find cheap flight options from Islip 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 2,864,334 searches. Prices were last updated on May 4, 2024.
Tue 5/146:05 pmISP - ORD
1 stop7h 54mFrontier
Tue 5/215:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$140
Sat 5/184:49 pmISP - ORD
1 stop9h 09mFrontier
Sun 5/197:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/3$154
Fri 5/314:49 pmISP - ORD
1 stop9h 19mFrontier
Sun 6/25:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$174
Thu 6/611:37 amISP - ORD
1 stop6h 10mFrontier
Fri 6/75:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/3$176
Mon 5/204:49 pmISP - ORD
1 stop9h 19mFrontier
Thu 5/237:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/2$194
Sun 5/194:49 pmISP - ORD
1 stop9h 19mFrontier
Tue 5/215:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$199
Sun 6/24:49 pmISP - ORD
1 stop9h 19mFrontier
Sun 6/98:02 pmORD - ISP
1 stop10h 38mFrontier
Deal found 5/3$216
Tue 5/79:50 pmISP - STL
1 stop24h 03mFrontier
Tue 5/147:16 pmSTL - ISP
1 stop12h 27mFrontier
Deal found 5/2$234
Tue 5/76:05 pmISP - ORD
1 stop7h 54mFrontier
Sun 5/197:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/3$238

Islip to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Islip and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 4, 2024.
Tue 5/146:05 pmISP - ORD
1 stop7h 54mFrontier
Tue 5/215:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$140
Sat 5/184:49 pmISP - ORD
1 stop9h 09mFrontier
Sun 5/197:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/3$154
Fri 5/314:49 pmISP - ORD
1 stop9h 19mFrontier
Sun 6/25:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$174
Thu 6/611:37 amISP - ORD
1 stop6h 10mFrontier
Fri 6/75:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/3$176
Fri 9/275:25 pmISP - ORD
1 stop24h 21mFrontier
Sun 9/295:56 pmORD - ISP
1 stop25h 49mFrontier
Deal found 5/3$177
Mon 5/204:49 pmISP - ORD
1 stop9h 19mFrontier
Thu 5/237:00 amORD - ISP
1 stop10h 06mFrontier
Deal found 5/2$194
Sun 5/194:49 pmISP - ORD
1 stop9h 19mFrontier
Tue 5/215:56 pmORD - ISP
1 stop13h 17mFrontier
Deal found 5/3$199
Sun 6/24:49 pmISP - ORD
1 stop9h 19mFrontier
Sun 6/98:02 pmORD - ISP
1 stop10h 38mFrontier
Deal found 5/3$216
Fri 7/195:25 pmISP - ORD
1 stop8h 34mFrontier
Tue 7/235:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/3$227

Islip to Illinois flights leaving soon

Find last-minute flight options from Islip 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 2,864,334 searches. Data last updated May 4, 2024.
Thu 5/96:05 pmISP - ORD
1 stop7h 54mFrontier
Fri 5/108:25 amORD - ISP
1 stop12h 07mFrontier
Deal found 5/1$244

One-way flights to Illinois from Islip

Search for one-way flight options from Islip 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 2,864,334 searches. Data last updated May 4, 2024.
Tue 5/146:05 pmISP - ORD
1 stop7h 54mFrontier
Deal found 5/3$70
Sun 5/126:05 pmISP - ORD
1 stop7h 54mFrontier
Deal found 5/3$79
Thu 6/611:37 amISP - ORD
1 stop6h 10mFrontier
Deal found 5/3$80
Tue 5/214:49 pmISP - ORD
1 stop9h 19mFrontier
Deal found 5/3$89
Sat 5/254:49 pmISP - ORD
1 stop9h 09mFrontier
Deal found 5/2$104
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Deal found 5/3$110
Thu 7/410:23 pmISP - STL
1 stop9h 39mFrontier
Deal found 5/2$116
Thu 7/2510:22 pmISP - STL
1 stop9h 40mFrontier
Deal found 5/3$121
Mon 7/155:25 pmISP - ORD
1 stop8h 34mFrontier
Deal found 5/3$127

Find flights from Islip to Illinois within your budget

Customize your flight search to find flights from Islip 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 2,864,334 searches. Data last updated May 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$140 - $225

Route

Depart

Return

Price

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Tue 5/14

1 stop7h 54m

Chicago O'Hare Intl

Tue 5/21

1 stop13h 17m

$140

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Sat 5/18

1 stop9h 09m

Chicago O'Hare Intl

Sun 5/19

1 stop10h 06m

$154

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Fri 5/31

1 stop9h 19m

Chicago O'Hare Intl

Sun 6/2

1 stop13h 17m

$174

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Thu 6/6

1 stop6h 10m

Chicago O'Hare Intl

Fri 6/7

1 stop12h 42m

$176

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Fri 9/27

1 stop24h 21m

Chicago O'Hare Intl

Sun 9/29

1 stop25h 49m

$177

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Mon 5/20

1 stop9h 19m

Chicago O'Hare Intl

Thu 5/23

1 stop10h 06m

$194

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Sun 5/19

1 stop9h 19m

Chicago O'Hare Intl

Tue 5/21

1 stop13h 17m

$199

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Sun 6/2

1 stop9h 19m

Chicago O'Hare Intl

Sun 6/9

1 stop10h 38m

$216

Islip Long IslandLambert-St Louis

ISP - STL

ISPSTL

Islip Long Island

Thu 7/4

1 stop9h 39m

Lambert-St Louis

Mon 7/8

1 stop10h 06m

$225

Flights are sorted by cheapest first

Deals found on 5/3

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 May 4, 2024.
Frontier
6.3
Okay
4,100 reviews
Check prices

Comfort

5.8

Entertainment

4.9

Boarding

6.6

Crew

7.1

Food

5.2

Overall

6.3

Reviews

1 / 10

Fine but we were stuck on the tarmac for 40 min upon landing at MDW. My husband was asked to put his bag in the measuring container and cut his finger in doing so.

Frontier
6.3
Okay
4,100 reviews
Frontier
6.3
Okay
4,100 reviews
Check prices

Comfort

5.8

Entertainment

4.9

Boarding

6.6

Crew

7.1

Food

5.2

Overall

6.3

Reviews

1 / 10

Fine but we were stuck on the tarmac for 40 min upon landing at MDW. My husband was asked to put his bag in the measuring container and cut his finger in doing so.

Related info for your journey

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

  • What airport do you fly from for flights from Islip to Illinois?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Illinois.

  • Can I find flights from Islip, New York to Illinois for under $200 on Cheapflights?

    Yes, there are multiple flights from Islip, New York to Illinois for under $200. The cheapest flight booked recently is on Frontier for just $140, but on average you can expect to pay $225.

  • Are there last-minute flights available from Islip, New York to Illinois for under $300?

    There are currently 1+ open flights from Islip, New York to Illinois within the next 7 days for less than $300.

  • What are the most popular routes from Islip, New York to Illinois?

    Most travelers choose Islip Long Island - Chicago O'Hare Intl, Islip Long Island - Lambert-St Louis or Islip Long Island - Decatur Arpt when deciding on the best route from Islip, New York to Illinois.

  • What does ISP to ORD mean?

    Islip Long Island Airport is ISP and Chicago O'Hare Intl Airport is ORD. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. 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 Islip to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Islip 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 Islip to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip 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 Islip to Illinois that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip 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 Islip to Illinois that allow pets onboard?

    Many airlines flying from Islip 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 Islip to Illinois?

    Yes, you can often find last-minute deals on Islip 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 Islip, New York to Illinois flight deals updated?

    The Islip, New York to Illinois flight deals you see on this page were last updated on 5/3.

See more FAQs

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Search flights from Islip to Illinois by cabin class

Find flights from Islip to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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How does Cheapflights help users find flights from Islip to Illinois?

When you search for this flight from Islip to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Islip 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 Islip.

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

Yes! Cheapflights helps users easily find flights from Islip to Illinois with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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