Flights to Southwest Idaho from Boston - ￥58,450

View ￥58,450 flight on Sun, Jul 27, 2025Opens in a new window

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Cheap Flights from Boston to Southwest Idaho (BOS-BOI)

Prices were available within the past 7 days and start at ￥58,450 for one-way flights and ￥49,090 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Aug 18 - Sat, Aug 23
BOS
Boston
BOI
Boise
￥49,090 Roundtrip, found 7 hours ago
￥49,090
Roundtrip
found 7 hours ago
Select Delta flight, departing Mon, Aug 18 from Boston to Boise, returning Sat, Aug 23, priced at ￥49,090 found 7 hours ago
American Airlines
Mon, Aug 18 - Sat, Aug 23
BOS
Boston
BOI
Boise
￥49,520 Roundtrip, found 7 hours ago
￥49,520
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Aug 18 from Boston to Boise, returning Sat, Aug 23, priced at ￥49,520 found 7 hours ago
American Airlines
Mon, Aug 18 - Sat, Aug 23
BOS
Boston
BOI
Boise
￥50,300 Roundtrip, found 7 hours ago
￥50,300
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Aug 18 from Boston to Boise, returning Sat, Aug 23, priced at ￥50,300 found 7 hours ago
American Airlines
Mon, Aug 18 - Sat, Aug 23
BOS
Boston
BOI
Boise
￥52,850 Roundtrip, found 7 hours ago
￥52,850
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Aug 18 from Boston to Boise, returning Sat, Aug 23, priced at ￥52,850 found 7 hours ago
American Airlines
Mon, Aug 18 - Sat, Aug 23
BOS
Boston
BOI
Boise
￥57,260 Roundtrip, found 7 hours ago
￥57,260
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Aug 18 from Boston to Boise, returning Sat, Aug 23, priced at ￥57,260 found 7 hours ago
United
Mon, Aug 18 - Sat, Aug 23
BOS
Boston
BOI
Boise
￥83,080 Roundtrip, found 7 hours ago
￥83,080
Roundtrip
found 7 hours ago
Select United flight, departing Mon, Aug 18 from Boston to Boise, returning Sat, Aug 23, priced at ￥83,080 found 7 hours ago

Find the cheapest month to fly from Boston (BOS) to Boise (BOI)

October is typically the cheapest month to fly

From ￥29,781 - ￥72,663 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.