Allegiant AirDepart18:47
Fri, Dec 18TYS → GRR
4h 36m · 1 stop
$149one way, per person
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- Cheapest fare
- $149
- Cheapest month
- December
- Direct flights
- Not recently
- Quickest trip
- 4h 36m
Allegiant Air · Fri, Dec 18
from $149
Usually 1+ stop
790 km
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Cheapest month to fly from Knoxville to Grand Rapids
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in December 2026
The lowest fares we've seen for each day, cheapest first.
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About flights from Knoxville to Grand Rapids
Knoxville (TYS) and Grand Rapids (GRR) are about 790 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 4h 36m. Over the next few months, one-way fares start from $149, and December 2026 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 Knoxville to Grand Rapids?
The cheapest one-way fare we've seen recently is $149 with Allegiant Air, departing Friday, December 18, 2026.
What is the cheapest month to fly from Knoxville to Grand Rapids?
December 2026 currently has the lowest fares, from $149 one way.
Are there direct flights from Knoxville to Grand Rapids?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Knoxville to Grand Rapids?
The quickest journey we've seen takes about 4h 36m. Knoxville and Grand Rapids are around 790 km apart.
Which airlines fly from Knoxville to Grand Rapids?
Recent fares on this route were with Allegiant Air.
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