$93 Cheap United flights from Boise to Ontario (BOI to ONT)

Find The Best Day To Fly from Boise to Ontario

Amazing United BOI to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $174 round trip and $93 one way. Prices and availability subject to change. Additional terms may apply.

ONT From BOI Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Empire Inn
Dynasty Suites Redlands
La Quinta Inn & Suites By Wyndham Yucaipa
Don't see what you're looking for?
See all available trips from Boise to Los Angeles - Ontario Intl.
View all trips

Frequently asked questions

Can I catch a flight from Boise Airport (BOI) to Los Angeles - Ontario Intl. Airport (ONT) right now?
Make sure you visit our Covid-19 Travel Advisor to find out if there are any current travel advice reports and quarantine requirements in effect in Ontario Airport when flying from Boise Airport.
What terminal is United Airlines at Boise Airport?
Once you receive the boarding pass for your United Airlines flight from Boise Airport (BOI) to Ontario Airport, you should be able to determine which terminals you'll be jetting in and out of. Your carrier will be able to help if you can't find those details on your ticket.
Are there United Airlines non-stop flights from BOI to ONT?
Be prepared to make a stopover when traveling from Boise Airport (BOI) to Los Angeles - Ontario Intl. Airport (ONT), as United Airlines doesn't offer nonstop flights on this route. While waiting for your connection, you might like to grab a new bestseller or a travel magazine from the airport bookstore to make the time go quicker.
How long is a United Airlines flight from BOI to ONT?
Your United Airlines flight should take you from Boise Airport (BOI) to ONT in just 3 hours and 32 minutes. If you're not too fond of chatting to fellow travelers while you're high up in the air, don't fret --- you won't have to make small talk for too long.
How many direct and indirect flights does United Airlines fly from BOI to ONT?
There are around 3 flights each day with United Airlines from BOI to ONT.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to ONT, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Boise BOI to Ontario ONT 

To find the best deals on flights to Boise from Ontario with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Boise BOI to Ontario ONT with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $174 to $251, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Boise BOI to Ontario ONT 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Boise to Ontario costs from $93. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Ontario ONT from  Boise BOI with United 

To find a cheap United flight from Boise BOI to Ontario ONT, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Boise BOI to Ontario ONT 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as September, or if you book a flight with a stopover. 

 

Find nonstop flights from Boise BOI to Ontario ONT with United 

If you’re keen to be on Ontario soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Boise BOI to Ontario ONT 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Ontario ONT from  Boise BOI with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Ontario

Ontario Airport Hotel & Conference Center
Ontario Airport Hotel & Conference Center
3.5 out of 5
700 N Haven Ave, Ontario, CA
This hotel features an outdoor pool, a 24-hour gym, and a restaurant. Traveling on business? Take advantage of the 24-hour business center and free WiFi in public ...
8.6/10 Excellent! (2,844 reviews)
"I stayed here 7 days. Very good experience"

Reviewed on Jul 9, 2025

Ontario Airport Hotel & Conference Center
La Quinta Inn & Suites by Wyndham Ontario Airport
La Quinta Inn & Suites by Wyndham Ontario Airport
3 out of 5
3555 Inland Empire Blvd, Ontario, CA
This hotel features an outdoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
8.2/10 Very Good! (1,889 reviews)
"Great"

Reviewed on Jul 9, 2025

La Quinta Inn & Suites by Wyndham Ontario Airport
Ontario Airport Inn
Ontario Airport Inn
2.5 out of 5
1801 E G St, Ontario, CA
This hotel doesn't skimp on freebies - guests receive free buffet breakfast, free self parking, and a free airport shuttle. Traveling on business? Take advantage ...
8.6/10 Excellent! (1,562 reviews)
"Great"

Reviewed on Jul 12, 2025

Ontario Airport Inn
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.