$97+ Cheap flights from Ontario to Boise (ONT - BOI)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOI
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Boise with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Ontario to Boise Air Term. Gowen Fld are usually found in January or May, booked 43 days in advance, depart on a Tuesday or Saturday and return on a Saturday
Cheap flight deals from Ontario to Boise
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to BoiseExplore the most affordable flight options available from Ontario to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Ontario to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:00 am -
1 stop4h 55m
Mon 10/192:50 pm -
1 stop20h 41m
Deal found 9/6![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:00 am -
1 stop4h 55m
Mon 10/122:50 pm -
1 stop20h 41m
Deal found 9/7![Frontier logo]()
$206
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:42 pm -
Nonstop2h 01m
Tue 10/202:51 pm -
Nonstop2h 11m
Deal found 9/7![Alaska Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:00 am -
1 stop4h 55m
Sun 10/182:50 pm -
1 stop17h 14m
Deal found 9/8![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:35 pm -
1 stop16h 20m
Sun 10/182:50 pm -
1 stop17h 14m
Deal found 9/6![Frontier logo]()
$215
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:05 am -
1 stop5h 50m
Tue 10/206:00 am -
1 stop4h 45m
Deal found 9/8![Southwest logo]()
$217
This Booking.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:42 pm -
Nonstop2h 01m
Sun 10/254:54 pm -
Nonstop2h 11m
Deal found 9/5![Alaska Airlines logo]()
$218
This CheapOair deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:04 am -
1 stop26h 51m
Mon 10/122:50 pm -
1 stop26h 40m
Deal found 9/9![Frontier logo]()
$219
This Trip.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am -
1 stop5h 29m
Thu 9/102:50 pm -
1 stop17h 14m
Deal found 9/4![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:38 pm -
1 stop21h 17m
Mon 10/192:50 pm -
1 stop20h 41m
Deal found 9/4![Frontier logo]()
$225
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:06 pm -
Nonstop2h 00m
Mon 11/94:16 pm -
1 stop7h 50m
Deal found 9/7![Alaska Airlines logo]()
$227
Best flights from Ontario to BoiseDiscover carefully curated flight deals from Ontario to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Ontario to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:15 pm -
1 stop6h 00m
Sat 10/105:15 pm -
1 stop4h 15m
Deal found 9/8![Southwest logo]()
$235
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:02 am -
1 stop26h 54m
Tue 10/272:51 pm -
Nonstop2h 11m
Deal found 9/5![Alaska Airlines logo]()
$235
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am -
1 stop3h 42m
Sun 10/116:00 am -
1 stop3h 55m
Deal found 9/6![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:45 pm -
1 stop3h 40m
Mon 11/94:40 pm -
2 stops6h 15m
Deal found 9/6![Southwest logo]()
$242
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:45 am -
1 stop3h 45m
Sat 10/35:15 pm -
1 stop4h 15m
Deal found 9/5![Southwest logo]()
$253
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:59 pm -
1 stop12h 57m
Wed 10/72:51 pm -
Nonstop2h 11m
Deal found 9/7![Alaska Airlines logo]()
$300
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:50 pm -
Nonstop1h 55m
Mon 10/54:18 pm -
1 stop26h 42m
Deal found 9/6![Alaska Airlines logo]()
$300
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:15 pm -
1 stop4h 55m
Fri 10/163:50 pm -
2 stops6h 35m
Deal found 9/8![Southwest logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:50 pm -
Nonstop1h 55m
Wed 10/72:51 pm -
Nonstop2h 11m
Deal found 9/7![Alaska Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:20 am -
2 stops7h 00m
Mon 10/57:45 pm -
1 stop3h 30m
Deal found 9/7![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:25 am -
2 stops6h 10m
Mon 10/53:50 pm -
2 stops6h 35m
Deal found 9/9![Southwest logo]()
$339
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops7h 15m
Mon 9/217:50 pm -
1 stop3h 30m
Deal found 9/4![Southwest logo]()
$346
Last-minute flights from Ontario to BoiseDiscover last-minute flight deals from Ontario to Boise. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Boise. Data last updated September 9, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am -
1 stop4h 55m
Mon 9/282:50 pm -
1 stop19h 19m
Deal found 9/9![Frontier logo]()
$230
This CheapOair deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:04 am -
1 stop26h 51m
Mon 10/122:50 pm -
1 stop26h 40m
Deal found 9/9![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:00 am -
1 stop4h 55m
Mon 10/122:50 pm -
1 stop20h 41m
Deal found 9/7![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:35 pm -
1 stop16h 20m
Sun 10/182:50 pm -
1 stop17h 14m
Deal found 9/6![Frontier logo]()
$215
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:38 pm -
1 stop21h 17m
Mon 10/192:50 pm -
1 stop20h 41m
Deal found 9/4![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:00 am -
1 stop4h 55m
Mon 10/192:50 pm -
1 stop20h 41m
Deal found 9/6![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:00 am -
1 stop4h 55m
Sun 10/182:50 pm -
1 stop17h 14m
Deal found 9/8![Frontier logo]()
$211
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:42 pm -
Nonstop2h 01m
Tue 10/202:51 pm -
Nonstop2h 11m
Deal found 9/7![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:05 am -
1 stop5h 50m
Tue 10/206:00 am -
1 stop4h 45m
Deal found 9/8![Southwest logo]()
$217
This Booking.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:42 pm -
Nonstop2h 01m
Sun 10/254:54 pm -
Nonstop2h 11m
Deal found 9/5![Alaska Airlines logo]()
$218
One-way flights from Ontario to BoiseSearch for one-way flight options from Ontario to Boise. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Ontario to Boise. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Frontier deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/212:01 pm -
1 stop3h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$97
This CheapOair deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:25 pm -
1 stop19h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:30 pm -
1 stop22h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$101
This Priceline deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:00 am -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$102
This CheapOair deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:07 pm -
1 stop19h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$104
This CheapOair deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:25 pm -
1 stop19h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$108
This Priceline deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:00 am -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$110
This Super.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$111
This Frontier deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:00 am -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$112
This CheapOair deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:38 pm -
1 stop21h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:24 pm -
1 stop16h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$116
Find flight deals from Ontario to Boise
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $205 (Kiwi.com) |
One-way from | $97 (Frontier) |
Popular in | December |
Cheapest in | January |
Average price | $282 |
Good round-trip deal | $217 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Ontario to Boise that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Fri 11/13
4:09 pm-10:20 pm
1 stop5h 11m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$124
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Tue 10/6
3:10 pm-11:15 pm
2 stops7h 05m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$132
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Sat 9/12
1:04 pm-6:53 pm
1 stop4h 49m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Sat 10/10
1:52 pm-7:29 pm
1 stop4h 37m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
Quickest round-trip
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Mon 10/19
6:00 am-10:42 am
1 stop3h 42m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$152
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Sat 10/24
8:03 am-12:58 pm
1 stop3h 55m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$159
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Sat 9/12
8:00 am-3:31 pm
1 stop6h 31m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$177
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Wed 9/23
1:18 pm-9:45 pm
1 stop7h 27m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$177
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Sat 10/3
5:00 am-1:38 pm
1 stop7h 38m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$177
OntarioBoise
ONT Ontario - BOI Boise Air Term. Gowen Fld
ONTBOI
Ontario
Mon 10/5
5:20 am-1:20 pm
2 stops7h 00m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$184
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Ontario to Boise
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Boise in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Boise flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Ontario with our price prediction graph.
ONT-BOI
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Boise
How far ahead should I book a flight from Ontario to Boise?
The best time to book flights from Ontario to Boise is 42 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Ontario to Boise?
Currently, January is the cheapest month in which you can book a flight from Ontario to Boise (average of $177). Flying from Ontario to Boise in December is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ONT to BOI?
Find hourly flight availability from Ontario to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 9, 2026.
It’s typically best to fly out from Ontario to Boise at noon. Doing so could potentially save you 62% on the flight price compared to flying in the morning, which is usually more expensive.
Reviews of airlines servicing Boise
Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated September 9, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Ontario to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Ontario to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boise?
Book flights to Boise if you plan to visit one of these locationsOntario
Meridian
Nampa
Caldwell
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Other flights to Boise
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Ontario and Boise flights
Browse other Ontario and Boise flight options. Last updated on September 9, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
Popular flight searches
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Top 3 airlines flying from Ontario to Boise
Discover the top 3 airlines that operate flights from Ontario to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$292 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$166 | Average$357 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$183 | Average$234 | FlexibilityNo cancel fee | On-timeN/A |