$214 Cheap United flights Boise (BOI) to Ontario (ONT)

View $214 flight on Sun, Jan 11, 2026Opens in a new window

$214 Cheap United flights Boise (BOI) to Ontario (ONT)

Prices were available within the past 7 days and start at $214 for one-way flights and $357 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Jan 11 - Thu, Jan 15
BOI
Boise
ONT
Ontario
$357 Roundtrip, found 1 day ago
$357
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 11 from Boise to Ontario, returning Thu, Jan 15, priced at $357 found 1 day ago
United
Sun, Jan 11 - Thu, Jan 15
BOI
Boise
ONT
Ontario
$376 Roundtrip, found 1 day ago
$376
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 11 from Boise to Ontario, returning Thu, Jan 15, priced at $376 found 1 day ago
United
Sun, Jan 11 - Thu, Jan 15
BOI
Boise
ONT
Ontario
$396 Roundtrip, found 1 day ago
$396
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 11 from Boise to Ontario, returning Thu, Jan 15, priced at $396 found 1 day ago
United
Sun, Jan 11 - Thu, Jan 15
BOI
Boise
ONT
Ontario
$411 Roundtrip, found 1 day ago
$411
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 11 from Boise to Ontario, returning Thu, Jan 15, priced at $411 found 1 day ago
United
Sun, Jan 11 - Thu, Jan 15
BOI
Boise
ONT
Ontario
$429 Roundtrip, found 1 day ago
$429
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 11 from Boise to Ontario, returning Thu, Jan 15, priced at $429 found 1 day ago
United
Sun, Jan 11 - Thu, Jan 15
BOI
Boise
ONT
Ontario
$440 Roundtrip, found 1 day ago
$440
Roundtrip
found 1 day ago
Select United flight, departing Sun, Jan 11 from Boise to Ontario, returning Thu, Jan 15, priced at $440 found 1 day ago

Find the cheapest month to fly from Boise (BOI) to Ontario (ONT)

January is typically the cheapest month to fly

From $107 - $388 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Los Angeles - Ontario Intl. ONT. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $257
ONT
Los Angeles - Ontario Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $257
Flights from Boise (BOI) to Ontario (ONT)
Origin airport
Boise
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
1057 km
Average flight time
3 hours 55 mins