Earn point on your loyalty program!arrow arc left

Cheap flights from London (LCY) to Boise (BOI)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from London (LCY) to Boise (BOI)

How to find the cheapest flight from London (LCY) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from London to Boise in August , September 2026

31 Aug - 08 Sep $ 1,249.00
LCY
London
Swiss International Air Lines
2 STOPS
BOI
Boise
BOI
Boise
Swiss International Air Lines
2 STOPS
LCY
London
Pick dates
30 Aug - 01 Oct $ 1,250.00
LCY
London
Swiss International Air Lines
2 STOPS
BOI
Boise
BOI
Boise
Swiss International Air Lines
2 STOPS
LCY
London
Pick dates
29 Aug - 08 Sep $ 1,403.00
LCY
London
Swiss International Air Lines
2 STOPS
BOI
Boise
BOI
Boise
Swiss International Air Lines
2 STOPS
LCY
London
Pick dates

Last minute flights from London to Boise

27 Aug - 02 Sep $ 1,652.00
LCY
London
Lufthansa
3 STOPS
BOI
Boise
BOI
Boise
Lufthansa
3 STOPS
LCY
London
Pick dates
27 Aug - 02 Sep $ 1,685.00
LCY
London
KLM Royal Dutch Airlines
3 STOPS
BOI
Boise
BOI
Boise
KLM Royal Dutch Airlines
3 STOPS
LCY
London
Pick dates
27 Aug - 01 Sep $ 1,798.00
LCY
London
Aer Lingus
3 STOPS
BOI
Boise
BOI
Boise
Aer Lingus
2 STOPS
LCY
London
Pick dates

One-way flights to Boise from London

8:15 PM - 6:03 PM
Alaska Airlines
3 Stops
31h 18m
LCY - BOI
$ 928
Kiwi
Pick dates
7:15 PM - 3:41 PM
Alaska Airlines
3 Stops
29h 52m
LCY - BOI
$ 1,015
Kiwi
Pick dates
7:15 PM - 3:41 PM
Alaska Airlines
3 Stops
29h 52m
LCY - BOI
$ 1,021
Kiwi
Pick dates

How to find the cheapest flight from London (LCY) to Boise (BOI)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from London (LCY) to Boise (BOI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.