Southwest AirlinesDepart15:25
Tue, Jan 12ISP → GRR
3h 15m · 1 stop
$202one way, per person
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- Cheapest fare
- $202
- Cheapest month
- January
- Direct flights
- Not recently
- Quickest trip
- 3h 15m
Southwest Airlines · Tue, Jan 12
from $202
Usually 1+ stop
1,070 km
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Cheapest month to fly from Islip to Grand Rapids
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in January 2027
The lowest fares we've seen for each day, cheapest first.
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About flights from Islip to Grand Rapids
Islip (ISP) and Grand Rapids (GRR) are about 1,070 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 15m. Over the next few months, one-way fares start from $202, and January 2027 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Islip to Grand Rapids?
The cheapest one-way fare we've seen recently is $202 with Southwest Airlines, departing Tuesday, January 12, 2027.
What is the cheapest month to fly from Islip to Grand Rapids?
January 2027 currently has the lowest fares, from $202 one way.
Are there direct flights from Islip to Grand Rapids?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Islip to Grand Rapids?
The quickest journey we've seen takes about 3h 15m. Islip and Grand Rapids are around 1,070 km apart.
Which airlines fly from Islip to Grand Rapids?
Recent fares on this route were with Southwest Airlines.
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