$101 Find Cheap Flights from Boise to Ontario - Compare and Save

Among airlines operating Boise to Ontario flights:

• Alaska Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only Alaska Airlines operates flights between Boise and Ontario.

Flights from Boise to Ontario usually depart from Boise Air Term. Gowen Fld (BOI) and arrive at Ontario (ONT).

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in First Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Two cabin classes are available on flights from Boise to Ontario:

• Economy Class
• First Class

On this route, nonstop and layover fares are close on average, with nonstop at $278 round-trip and layover options via Seattle/Tacoma Intl (SEA) at $277.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $80–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines. Other aircraft seen on the route include Embraer 175 variants.

One-stop flights from Boise to Ontario most commonly connect through:

• San Francisco (SFO) - 25% of one-stop connections
• Salt Lake City (SLC) - 23% of one-stop connections
• Sacramento Intl (SMF) - 18% of one-stop connections
• Phoenix Sky Harbor Intl (PHX) - 10% of one-stop connections

San Francisco (SFO) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 55% on the Boise to Ontario route. Monday is the cheapest departure day at $225 round-trip on average, while Sunday is the most expensive at $497, a difference of $272. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Afternoon is the busiest departure period on Boise to Ontario flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

Some of the most popular sights in Ontario are Ontario Convention Center, Ontario Mills and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

These are the earliest and latest flight times available from Boise to Ontario:

• Earliest: departs at 2:08 pm and lands at 4:19 pm
• Latest: departs at 5:44 pm and lands at 7:55 pm.

The flight takes about 2h 11m.

Last-minute fares on this route - booked within 2 weeks of departure - run 91% above the route average of $299. Book 21 weeks before departure for the lowest fares.

A nonstop flight from Boise to Ontario takes 2h 11m, covering 661 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from Boise to Ontario are currently lower than usual. Average one-way flight prices are about $134, which is 36% below the typical average for this route.

Flying via Oakland (OAK) gives the shortest average 1-stop total travel time at 4h 11m, compared with 4h 16m via San Francisco (SFO) and 4h 18m via Sacramento Intl (SMF).

Ontario is 1 hour behind Boise (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:
· Fox
· Thrifty
· Europcar
· Dollar
· Alamo

Round-trip flights from Boise to Ontario range from $211 to $426, with an average of $299 over the past 12 months. Anything below $211 counts as a good deal.

Alaska Airlines is the only airline on the Boise to Ontario route offering in-flight Wi-Fi. Pricing depends on fare class.