Cheap Flights from Ontario, CA to Boise, ID from $90

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On Cheapflightsplus.com you will find 163 connecting flights from Ontario to Boise. You can compare airfare deals from 4 airlines and multiple travel sites from $90, book and save on cheap plane tickets and last minute offers. Also check out ONT-BOI flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to Boise Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $90 (one-way), $154 (round-trip).

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Best Flights from Ontario to Boise Today

Take a look at the list of non stop flights and flights with layovers from Ontario to Boise with the lowest price of $90. Take a look at the list of flights with layovers from Ontario to Boise from $90. There’re no direct flights. The fastest connecting flight – 3h 44m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $90 Find flight	00:59 Ontario Ontario Int.	11:46 Boise Boise	9h 47m layover 5h 31m - Denver	Frontier Airlines	F91500 F93933
from $124 Find flight	16:00 Ontario Ontario Int.	22:46 Boise Boise	5h 46m layover 1h 34m - Seattle	Hawaiian Airlines	HA6290 HA6648

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 15, 2025

Flight Schedule Ontario (California) to Boise (Idaho)

Full flight schedule will help you in detecting at what time planes fly from Ontario to Boise. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
00:59 — 11:46	00:59 — 04:19 F91500 Frontier Airlines Ontario — Denver 5h 31m stop 09:50 — 11:46 F93933 Frontier Airlines Denver — Boise	9h 47m including layover	Find flight from$90
06:00 — 13:01	06:00 — 08:45 AS1091 Alaska Airlines Ontario — Seattle 1h 41m stop 10:26 — 13:01 AS3307 Alaska Airlines Seattle — Boise	6h 1m including layover	Find flight from$128
06:00 — 14:35	06:00 — 08:42 AS1091 Alaska Airlines Ontario — Seattle 3h 15m stop 12:31 — 15:04 AS1018 Alaska Airlines Seattle — Boise	7h 35m including layover	Find flight from$128
06:00 — 12:20	06:00 — 08:42 HA6288 Hawaiian Airlines Ontario — Seattle 1h 8m stop 09:50 — 12:20 HA6668 Hawaiian Airlines Seattle — Boise	5h 20m including layover	Find flight from$154
12:00 — 18:11	12:00 — 14:38 HA6289 Hawaiian Airlines Ontario — Seattle 1h 7m stop 15:45 — 18:11 HA6622 Hawaiian Airlines Seattle — Boise	5h 11m including layover	Find flight from$144
12:00 — 18:11	12:00 — 14:38 AS1111 Alaska Airlines Ontario — Seattle 1h 7m stop 15:45 — 18:11 AS2326 Alaska Airlines Seattle — Boise	5h 11m including layover	Find flight from$153
13:31 — 20:12	13:31 — 16:14 AS1111 Alaska Airlines Ontario — Seattle 1h 26m stop 17:40 — 20:12 AS3316 Alaska Airlines Seattle — Boise	5h 41m including layover	Find flight from$152
14:21 — 22:46	14:21 — 16:58 HA6307 Hawaiian Airlines Ontario — Seattle 3h 16m stop 20:14 — 22:46 HA6648 Hawaiian Airlines Seattle — Boise	7h 25m including layover	Find flight from$124
14:21 — 22:46	14:21 — 16:58 AS1242 Alaska Airlines Ontario — Seattle 3h 16m stop 20:14 — 22:46 AS1034 Alaska Airlines Seattle — Boise	7h 25m including layover	Find flight from$132
16:00 — 22:46	16:00 — 18:40 HA6290 Hawaiian Airlines Ontario — Seattle 1h 34m stop 20:14 — 22:46 HA6648 Hawaiian Airlines Seattle — Boise	5h 46m including layover	Find flight from$124
16:00 — 22:46	16:00 — 18:40 AS1119 Alaska Airlines Ontario — Seattle 1h 34m stop 20:14 — 22:46 AS1034 Alaska Airlines Seattle — Boise	5h 46m including layover	Find flight from$132
16:00 — 00:11 +1 day	16:00 — 18:40 HA6290 Hawaiian Airlines Ontario — Seattle 3h 5m stop 21:45 — 00:11 HA6623 Hawaiian Airlines Seattle — Boise	7h 11m including layover	Find flight from$144
16:00 — 00:11 +1 day	16:00 — 18:40 AS1119 Alaska Airlines Ontario — Seattle 3h 5m stop 21:45 — 00:11 AS2365 Alaska Airlines Seattle — Boise	7h 11m including layover	Find flight from$153
17:21 — 11:46 +1 day	17:21 — 20:44 F92908 Frontier Airlines Ontario — Denver 13h 6m stop 09:50 — 11:46 F93933 Frontier Airlines Denver — Boise	17h 25m including layover	Find flight from$102
17:45 — 23:57	17:45 — 20:03 AS2202 Alaska Airlines Ontario — Portland 1h 37m stop 21:40 — 23:57 AS996 Alaska Airlines Portland — Boise	5h 12m including layover	Find flight from$128

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on September 15, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Ontario to Boise depends on and how to choose the most interesting flight option for you.

Distance between Ontario and Boise is 1064 miles. Time difference between the cities is 1h. Airplanes depart 00:59 to 19:25 from 2 Ontario airports and arrive 00:59 to 19:25 to 1 Boise airport. Average flight time is 8h.

The fastest flight 3h 44m
Average flight time 8h
The earliest flight 00:59
The latest flight 19:25
Distance 662 ml

The cheapest months to travel to Boise are july (from 90 $), august (from 113 $), october (from 128 $).

The most expensive months are september (from 128 $), october (from 128 $), august (from 113 $).

What is the lowest airfare Ontario to Boise?

The cheapest plane ticket found by our users is $90. This airfare is for economy class on one-way F91500 flight by Frontier Airlines for July 6, 2025 which leaves Ontario Int. in Ontario at 00:59 am and arrives at Boise Boise at 11:46.

Economy class

$90

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Business class

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First class

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Popular Airlines on the Route

The flight Ontario — Boise is served by 4 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Alaska Airlines - 68 departures per week at the price of from $ 128 . And the most expensive tickets are offered by United Airlines airline - from $ 409.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 163 flights with layovers on the route. The fastest connecting flight is UA393 by United Airlines takes 3h 44m and the cheapest is F91500 by Frontier Airlines for $90.

AS - Alaska Airlines

from $128

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F9 - Frontier Airlines

from $90

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HA - Hawaiian Airlines

from $124

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UA - United Airlines

from $165

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Airports

You can fly from Ontario to Boise from 2 airports (Ontario Int., International Heliport).

Ontario airports

Ontario Int.-ONT

from $90
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International Heliport-JIO

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Boise airports

Boise-BOI

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Airplanes

There are flights to Boise from Ontario by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Ontario

You may also consider searching for discounted plane tickets to some other popular places from Ontario within United States.

Ontario — Phoenix

from $56

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Ontario — Denver

from $65

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Ontario — Austin

from $67

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Ontario — Miami

from $62

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Ontario — Tucson

from $80

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Ontario — Las Vegas

from $63

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Ontario — Seattle

from $65

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Ontario — Boise

from $70

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Ontario — Chicago

from $78

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Ontario — Philadelphia

from $62

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Top International Destinations from Ontario

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Ontario — London

from $62

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Ontario — San Jose

from $61

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Ontario — Guadalajara

from $70

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Ontario — Cancun

from $74

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
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That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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