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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 6/10. 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
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 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 56 days in advance, which can save you up to 98% on flights from Islip, New York to Illinois compared to booking the week you need them. Waiting 56 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 $282. For sooner than that we have options available in the next 3 days from $423.

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 $259 for the month, but tickets can be as low as $81. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from ISP to 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 2,784,634 searches. Data last updated May 30, 2024.
Take a peek at the cheapest Frontier flights we've detected traveling from Islip to Illinois. Make sure to double check the flight details before booking.
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Thu 6/1311:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$175
Thu 6/610:23 pmISP - ORD
1 stop27h 45mFrontier
Thu 6/1311:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/28$176
Thu 6/610:23 pmISP - STL
1 stop9h 44mFrontier
Fri 6/77:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/29$185
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Mon 6/175:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$189
Tue 8/135:25 pmISP - ORD
1 stop8h 34mFrontier
Fri 8/165:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/29$196
Tue 6/119:53 pmISP - ORD
1 stop28h 15mFrontier
Tue 6/188:13 amORD - ISP
1 stop22h 27mFrontier
Deal found 5/30$199
Wed 6/194:46 pmISP - ORD
1 stop9h 22mFrontier
Fri 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$209
Wed 6/54:46 pmISP - ORD
1 stop9h 21mFrontier
Thu 6/611:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$219
Tue 7/2311:24 amISP - ORD
1 stop6h 18mFrontier
Mon 7/295:57 pmORD - ISP
1 stop13h 42mFrontier
Deal found 5/29$228

Cheap Southwest flights from Islip to Illinois

Explore cheap flight options specifically provided by Southwest 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 2,784,634 searches. Data last updated May 30, 2024.
Browse through some of the cheapest Southwest flights traveling from Islip to Illinois. Check back soon if you're not seeing flights that suit your needs.
Mon 6/175:35 pmISP - ORD
1 stop4h 55mSouthwest
Tue 6/186:30 amORD - ISP
1 stop4h 10mSouthwest
Deal found 5/30$403
Mon 6/172:45 pmISP - ORD
1 stop7h 45mSouthwest
Tue 6/1811:25 amORD - ISP
2 stops7h 50mSouthwest
Deal found 5/30$408

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 2,784,634 searches. Prices were last updated on May 30, 2024.
Check out some of the best flight deals from Islip to Illinois in 2024. For more flight deals, be sure to check back very soon.
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Thu 6/1311:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$175
Thu 6/610:23 pmISP - ORD
1 stop27h 45mFrontier
Thu 6/1311:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/28$176
Thu 6/610:23 pmISP - STL
1 stop9h 44mFrontier
Fri 6/77:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/29$185
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Mon 6/175:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$189
Sat 6/154:46 pmISP - STL
1 stop15h 21mFrontier
Sat 7/137:33 pmSTL - ISP
1 stop11h 25mFrontier
Deal found 5/30$199
Tue 6/119:53 pmISP - ORD
1 stop28h 15mFrontier
Tue 6/188:13 amORD - ISP
1 stop22h 27mFrontier
Deal found 5/30$199
Wed 6/194:46 pmISP - ORD
1 stop9h 22mFrontier
Fri 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$209
Wed 6/54:46 pmISP - ORD
1 stop9h 21mFrontier
Thu 6/611:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$219
Wed 6/194:46 pmISP - STL
1 stop15h 21mFrontier
Sat 6/2212:13 pmSTL - ISP
1 stop24h 45mFrontier
Deal found 5/29$228

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 2,784,634 searches. Data last updated May 30, 2024.
Check out some of the best flight deals from Islip to Illinois in 2024. For more flight deals, be sure to check back very soon.
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Thu 6/1311:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$175
Thu 6/610:23 pmISP - ORD
1 stop27h 45mFrontier
Thu 6/1311:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/28$176
Thu 6/610:23 pmISP - STL
1 stop9h 44mFrontier
Fri 6/77:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/29$185
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Mon 6/175:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$189
Tue 8/135:25 pmISP - ORD
1 stop8h 34mFrontier
Fri 8/165:56 pmORD - ISP
1 stop13h 30mFrontier
Deal found 5/29$196
Sat 6/154:46 pmISP - STL
1 stop15h 21mFrontier
Sat 7/137:33 pmSTL - ISP
1 stop11h 25mFrontier
Deal found 5/30$199
Tue 6/119:53 pmISP - ORD
1 stop28h 15mFrontier
Tue 6/188:13 amORD - ISP
1 stop22h 27mFrontier
Deal found 5/30$199
Wed 6/194:46 pmISP - ORD
1 stop9h 22mFrontier
Fri 6/215:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$209
Wed 6/54:46 pmISP - ORD
1 stop9h 21mFrontier
Thu 6/611:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$219

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 2,784,634 searches. Data last updated May 30, 2024.
Consider one of these great deals we found on last-minute flights from Islip to Illinois. Users should examine the flight details to ensure there are no surprises.
Thu 6/610:23 pmISP - ORD
1 stop27h 45mFrontier
Thu 6/1311:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/28$176
Thu 6/610:23 pmISP - STL
1 stop9h 44mFrontier
Fri 6/77:44 pmSTL - ISP
1 stop10h 56mFrontier
Deal found 5/29$185
Wed 6/54:46 pmISP - ORD
1 stop9h 21mFrontier
Thu 6/611:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$219
Tue 6/44:49 pmISP - ORD
1 stop9h 19mFrontier
Mon 6/105:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$278
Fri 6/74:46 pmISP - ORD
1 stop9h 22mFrontier
Sun 6/98:02 pmORD - ISP
1 stop10h 38mFrontier
Deal found 5/30$298
Tue 6/44:49 pmISP - ORD
1 stop9h 19mFrontier
Wed 6/55:58 pmORD - ISP
1 stop12h 42mFrontier
Deal found 5/29$308
Wed 6/54:46 pmISP - ORD
1 stop9h 21mFrontier
Sun 6/98:02 pmORD - ISP
1 stop10h 38mFrontier
Deal found 5/29$359
Tue 6/44:49 pmISP - ORD
1 stop9h 19mFrontier
Thu 6/611:26 amORD - ISP
1 stop6h 52mFrontier
Deal found 5/29$398
Thu 6/62:05 pmISP - ORD
2 stops11h 50mMultiple Airlines
Thu 6/135:18 pmORD - ISP
2 stops22h 49mMultiple Airlines
Deal found 5/28$495

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 2,784,634 searches. Data last updated May 30, 2024.
If you're seeking multiple options on one-way flights from Islip to Illinois, be sure to check out these deals, which are updated often. Users in need of a round-trip flight from Islip to Illinois instead should update the search form at the top of page.
Mon 6/104:46 pmISP - ORD
1 stop9h 22mFrontier
Deal found 5/29$70
Thu 6/610:23 pmISP - STL
1 stop9h 44mFrontier
Deal found 5/30$96
Wed 6/194:46 pmISP - ORD
1 stop9h 22mFrontier
Deal found 5/29$100
Fri 6/144:46 pmISP - ORD
1 stop9h 22mFrontier
Deal found 5/30$109
Thu 7/410:23 pmISP - ORD
1 stop27h 36mFrontier
Deal found 5/28$112
Thu 6/1311:37 amISP - ORD
1 stop6h 10mFrontier
Deal found 5/29$119
Sun 6/2310:23 pmISP - ORD
1 stop27h 45mFrontier
Deal found 5/28$123
Thu 8/111:37 amISP - ORD
1 stop11h 02mFrontier
Deal found 5/29$124
Sun 8/1110:22 pmISP - STL
1 stop11h 21mFrontier
Deal found 5/30$125

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 2,784,634 searches. Data last updated May 30, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$175 - $406

Route

Depart

Return

Price

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Mon 6/10

1 stop9h 22m

Chicago O'Hare Intl

Thu 6/13

1 stop6h 52m

$175

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Thu 6/6

1 stop27h 45m

Chicago O'Hare Intl

Thu 6/13

1 stop6h 52m

$176

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Mon 6/10

1 stop9h 22m

Chicago O'Hare Intl

Mon 6/17

1 stop12h 42m

$189

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Tue 8/13

1 stop8h 34m

Chicago O'Hare Intl

Fri 8/16

1 stop13h 30m

$196

Islip Long IslandLambert-St Louis

ISP - STL

ISPSTL

Islip Long Island

Sat 6/15

1 stop15h 21m

Lambert-St Louis

Sat 7/13

1 stop11h 25m

$199

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Tue 6/11

1 stop28h 15m

Chicago O'Hare Intl

Tue 6/18

1 stop22h 27m

$199

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Wed 6/19

1 stop9h 22m

Chicago O'Hare Intl

Fri 6/21

1 stop12h 42m

$209

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Mon 6/17

1 stop4h 55m

Chicago O'Hare Intl

Tue 6/18

1 stop4h 10m

$403

Islip Long IslandChicago O'Hare Intl

ISP - ORD

ISPORD

Islip Long Island

Mon 6/10

3 stops24h 43m

Chicago O'Hare Intl

Thu 6/13

2 stops21h 27m

$406

Flights are sorted by cheapest first

Deals found on 5/29

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

Best time to book a flight from Islip to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Islip 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.
Read through reviews of airlines operating flights from Islip to Illinois, such as Frontier and Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

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

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

Reviews

1 / 10

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

Frontier
6.3
Okay
4,016 reviews
Southwest
8.2
Very good
5,956 reviews
Check prices

Food

7.3

Crew

8.7

Overall

8.2

Boarding

8.3

Entertainment

7.8

Comfort

8.1

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 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 $175, but on average you can expect to pay $230.

  • Are there last-minute flights available from Islip, New York to Illinois for under $200?

    There are currently 14+ open flights from Islip, New York to Illinois within the next 7 days for less than $200.

  • 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 5/30.

  • What is the cheapest month to book a flight from Islip, New York to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Islip, New York to Illinois (average of $244). Flying from Islip, New York 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 Islip to Illinois
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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.

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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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