Cheap flights from New York LaGuardia Airport to Illinois from ₹ 11,362

In general, January is the cheapest month to fly from New York LaGuardia Airport to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 19,573. If you aren’t able to travel during the month of January, then book flights to Illinois from New York LaGuardia Airport during February instead. Flights to Illinois in February, while not as cheap as those in January, still average around ₹ 23,679.

On average, the least expensive day to fly to Illinois from New York LaGuardia Airport is on a Monday. momondo users have found tickets for Monday departures for as low as ₹ 21,385. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from New York LaGuardia Airport to Illinois on a Saturday will generally be more expensive and average around ₹ 70,997. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Illinois is in the evening. momondo users have found flights departing from New York LaGuardia Airport to Illinois in the evening for as low as ₹ 28,838. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Illinois is at midday when prices are around ₹ 42,770.

Fly from New York LaGuardia to Chicago O'Hare Intl for the best New York LaGuardia - Illinois flight prices

You are more likely to see cheaper flights to Illinois from New York LaGuardia Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around ₹ 27,275 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from New York LaGuardia Airport for as low as ₹ 19,573 on momondo.

There is only 1 cabin class available to choose from on New York LaGuardia Airport to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of August 2026, there are 59 flights per day flying from New York LaGuardia Airport to Illinois. The most common time of day flights depart is 08:00, with 44% of flights taking off at midday.

414 flights are operational weekly from New York LaGuardia Airport to Illinois as of August 2026. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.