HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$214+ Cheap flights from Milwaukee to Islip, NY (MKE - ISP)

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — ISP
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Milwaukee to Islip with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Milwaukee to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$275
(Cheapflightsfares)

One-way from

$214
(Southwest)

Popular in

December

Cheapest in

May

Average price

$346
Provider with most accurate pricing for Milwaukee-Mitchell-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Islip Long Island flights.
Search Deals
From Milwaukee-Mitchell to Islip Long Island
Search Deals
One-way flight from Milwaukee-Mitchell to Islip Long Island
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Milwaukee to Islip

Cheapest flights from Milwaukee to Islip
Explore the most affordable flight options available from Milwaukee to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/129:53 amMKE - ISP
1 stop7h 22mFrontier
Tue 4/1510:50 amISP - MKE
1 stop7h 47mFrontier
Deal found 3/26$275
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:15 pmMKE - ISP
1 stop4h 50mSouthwest
Sun 5/114:20 pmISP - MKE
1 stop8h 00mSouthwest
Deal found 3/27$377
This Trip.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/3010:14 amMKE - ISP
1 stop8h 49mMultiple Airlines
Tue 4/110:50 amISP - MKE
1 stop23h 19mMultiple Airlines
Deal found 3/27$525

Cheapflights Fare Finder

Customize your flight search to find flights from Milwaukee to Islip 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 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Milwaukee to Islip that are best for you.

Fly from

Milwaukee

Fly to

Islip

Route

Depart

Return

Price

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Sat 4/12

9:53 am-6:15 pm

1 stop7h 22m

Islip Long Island

Tue 4/15

10:50 am-5:37 pm

1 stop7h 47m

$275

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Thu 5/8

5:15 pm-11:05 pm

1 stop4h 50m

Islip Long Island

Sun 5/11

4:20 pm-11:20 pm

1 stop8h 00m

$377

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Thu 4/24

5:15 pm-11:05 pm

1 stop4h 50m

$214

MilwaukeeIslip

MKE - ISP

MKEISP

Milwaukee-Mitchell

Thu 4/24

5:00 pm-7:45 pm

3 stops25h 45m

$696

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Milwaukee to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Islip in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Milwaukee-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Milwaukee to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Milwaukee 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.

Cheapflights Insights

Everything you need to know about your flight from Milwaukee to Islip

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

Currently, January is the cheapest month in which you can book a flight from Milwaukee to Islip, New York (average of $108). Flying from Milwaukee to Islip, New York in November is currently the most expensive (average of $213). 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.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated March 28, 2025.
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
6.0
Okay
3,271 reviews
Southwest
8.1
Very good
4,274 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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

  • What are the cheapest airlines flying from Milwaukee to Islip, New York round-trip?

    Currently priced at $275, Frontier will fly you from Milwaukee to Islip, New York and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Southwest for as low as $377.

  • Can I find deals for flights from Milwaukee to Islip that include hotel bookings?

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Milwaukee to Islip, New York (average of $108). Flying from Milwaukee to Islip, New York in November is currently the most expensive (average of $213). 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

Traveling to a place near Milwaukee?

Book flights to Milwaukee if you plan to visit one of these locations
Southampton
Riverhead

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Milwaukee to Islip

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Newark flights
O'Hare Intl to LaGuardia flights
Minneapolis to LaGuardia flights
Minneapolis to Newark flights
Minneapolis to John F Kennedy Intl flights
Milwaukee to John F Kennedy Intl flights
Milwaukee to LaGuardia flights
Madison to Newark flights
Madison to LaGuardia flights
Milwaukee to Newark flights
O'Hare Intl to Albany flights
Madison to John F Kennedy Intl flights
O'Hare Intl to Syracuse flights
O'Hare Intl to Buffalo flights
O'Hare Intl to White Plains flights
O'Hare Intl to Rochester flights
Appleton to John F Kennedy Intl flights
Minneapolis to Albany flights
Minneapolis to Buffalo flights
Minneapolis to Syracuse flights
Appleton to LaGuardia flights
Appleton to Newark flights
Green Bay to LaGuardia flights
Green Bay to John F Kennedy Intl flights
Madison to Albany flights
Green Bay to Newark flights
Minneapolis to White Plains flights
Appleton to Albany flights
Milwaukee to Albany flights
O'Hare Intl to Ithaca flights
Milwaukee to Buffalo flights
O'Hare Intl to Stewart flights
Milwaukee to Rochester flights
Minneapolis to Rochester flights
Madison to Rochester flights
O'Hare Intl to Binghamton flights
Madison to Syracuse flights
O'Hare Intl to Islip flights
Milwaukee to White Plains flights
O'Hare Intl to Rutland flights
Milwaukee to Syracuse flights
Wausau to Newark flights
Appleton to Buffalo flights
Wausau to John F Kennedy Intl flights
Wausau to LaGuardia flights
Minneapolis to Stewart flights
Duluth to John F Kennedy Intl flights
Duluth to LaGuardia flights
Duluth to Newark flights

Top airline flying from Milwaukee to Islip

Discover the top airline that operate flights from Milwaukee to Islip. 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 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$271Average$366FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.