$145 Cheap Spirit Airlines flights Las Vegas (LAS) to Boston (BOS)

View $145 flight on Mon, Apr 13, 2026Opens in a new window

$145 Cheap Spirit Airlines flights Las Vegas (LAS) to Boston (BOS)

Prices were available within the past 7 days and start at $145 for one-way flights and $340 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Dec 18 - Tue, Jan 13
LAS
Las Vegas
BOS
Boston
$340 Roundtrip, found 2 days ago
$340
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Thu, Dec 18 from Las Vegas to Boston, returning Tue, Jan 13, priced at $340 found 2 days ago
Spirit Airlines
Sat, Dec 20 - Mon, Jan 12
LAS
Las Vegas
BOS
Boston
$361 Roundtrip, found 2 days ago
$361
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Sat, Dec 20 from Las Vegas to Boston, returning Mon, Jan 12, priced at $361 found 2 days ago

Find the cheapest month to fly from Las Vegas (LAS) to Boston (BOS)

February is typically the cheapest month to fly

From $137 - $261 per traveler.
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Flights from Las Vegas (LAS) to Boston (BOS)
Origin airport
Harry Reid Intl.
Destination airport
Logan Intl.
Distance
3798 km