$184+ Cheap flights from Boise (BOI) to Ontario
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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
Oct 11 — Oct 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boise to Ontario 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.Cheap flight deals from Boise to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boise to OntarioExplore the most affordable flight options available from Boise to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
Explore the most affordable flight options available from Boise to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:40 pm -
1 stop8h 19m
Fri 10/1611:38 am -
1 stop12h 19m
Deal found 9/8![Delta logo]()
$426
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:37 am -
1 stop7h 28m
Mon 11/169:30 am -
1 stop11h 54m
Deal found 9/10![Multiple Airlines logo]()
$434
This Travelocity deal was found by Cheapflights users on 9/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:43 am -
1 stop7h 02m
Fri 10/309:30 am -
1 stop9h 29m
Deal found 9/10![Multiple Airlines logo]()
$439
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/12:50 pm -
1 stop13h 49m
Sat 10/31:50 pm -
1 stop10h 11m
Deal found 9/11![Multiple Airlines logo]()
$441
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:10 pm -
1 stop10h 20m
Mon 11/167:26 pm -
1 stop18h 05m
Deal found 9/8![Air Canada logo]()
$443
This Delta deal was found by Cheapflights users on 9/10. 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 10/911:10 pm -
1 stop11h 09m
Sat 10/176:10 am -
1 stop9h 24m
Deal found 9/10![Delta logo]()
$447
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:30 am -
1 stop9h 02m
Tue 10/136:40 pm -
1 stop16h 54m
Deal found 9/8![Air Canada logo]()
$449
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:06 am -
2 stops9h 35m
Mon 11/162:01 pm -
1 stop10h 41m
Deal found 9/8![American Airlines logo]()
$454
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:10 pm -
1 stop9h 13m
Sat 10/312:25 pm -
1 stop10h 32m
Deal found 9/9![Delta logo]()
$455
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/111:53 pm -
1 stop24h 12m
Mon 11/165:15 pm -
2 stops18h 18m
Deal found 9/10![Alaska Airlines logo]()
$457
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:20 pm -
1 stop14h 40m
Wed 10/2110:45 am -
1 stop8h 58m
Deal found 9/9![United Airlines logo]()
$459
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:06 pm -
2 stops14h 59m
Wed 10/146:45 am -
3 stops29h 11m
Deal found 9/9![Multiple Airlines logo]()
$466
Best flights from Boise to OntarioDiscover carefully curated flight deals from Boise to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Boise to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:40 pm -
1 stop8h 19m
Fri 10/1611:38 am -
1 stop12h 19m
Deal found 9/8![Delta logo]()
$426
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 11/111:53 pm -
1 stop24h 12m
Mon 11/165:15 pm -
2 stops18h 18m
Deal found 9/10![Alaska Airlines logo]()
$457
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:20 pm -
1 stop14h 40m
Wed 10/2110:45 am -
1 stop8h 58m
Deal found 9/9![United Airlines logo]()
$459
This Flysmarter 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:59 pm -
2 stops11h 06m
Sat 10/38:15 am -
1 stop15h 20m
Deal found 9/7![Multiple Airlines logo]()
$582
This Delta deal was found by Cheapflights users on 9/10. 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 10/911:10 pm -
1 stop11h 09m
Sat 10/176:10 am -
1 stop9h 24m
Deal found 9/10![Delta logo]()
$447
This Delta deal was found by Cheapflights users on 9/10. 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.
Sun 10/251:40 pm -
1 stop8h 19m
Sun 11/16:15 am -
1 stop9h 19m
Deal found 9/10![Delta logo]()
$447
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:10 pm -
1 stop9h 13m
Sat 10/312:25 pm -
1 stop10h 32m
Deal found 9/9![Delta logo]()
$455
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:00 am -
2 stops14h 42m
Wed 10/286:00 am -
1 stop7h 31m
Deal found 9/9![United Airlines logo]()
$593
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:00 pm -
1 stop6h 22m
Wed 10/149:30 am -
2 stops16h 29m
Deal found 9/9![Delta logo]()
$516
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:59 pm -
2 stops21h 16m
Fri 10/166:10 pm -
2 stops29h 58m
Deal found 9/7![WestJet logo]()
$1,485
This Delta deal was found by Cheapflights users on 9/10. 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.
Sun 1/1011:30 am -
2 stops10h 05m
Wed 1/207:00 am -
2 stops15h 17m
Deal found 9/10![Delta logo]()
$527
This Delta deal was found by Cheapflights users on 9/11. 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.
Wed 12/91:47 pm -
1 stop8h 11m
Tue 12/154:49 pm -
2 stops9h 21m
Deal found 9/11![Delta logo]()
$567
This Travelocity deal was found by Cheapflights users on 9/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:43 am -
2 stops14h 30m
Fri 10/307:05 am -
2 stops12h 02m
Deal found 9/10![Multiple Airlines logo]()
$982
This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 10/241:40 pm -
1 stop8h 14m
Sat 10/317:00 am -
1 stop7h 35m
Deal found 9/11![Delta logo]()
$581
This Expedia deal was found by Cheapflights users on 9/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:43 am -
2 stops14h 30m
Sat 10/107:25 am -
2 stops12h 52m
Deal found 9/10![Multiple Airlines logo]()
$1,012
Last-minute flights from Boise to OntarioDiscover last-minute flight deals from Boise to Ontario. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Ontario. Data last updated September 11, 2026 and is based on user searches.
This Flysmarter 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:50 pm -
1 stop11h 26m
Sat 10/38:15 am -
1 stop11h 28m
Deal found 9/7![Air Canada logo]()
$530
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/12:50 pm -
1 stop13h 49m
Sat 10/31:50 pm -
1 stop10h 11m
Deal found 9/11![Multiple Airlines logo]()
$441
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:10 pm -
1 stop9h 13m
Sat 10/312:25 pm -
1 stop10h 32m
Deal found 9/9![Delta logo]()
$455
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 10/12:50 pm -
1 stop13h 49m
Thu 10/153:50 pm -
2 stops24h 05m
Deal found 9/6![Multiple Airlines logo]()
$475
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.
Mon 10/52:50 pm -
1 stop13h 49m
Thu 10/153:50 pm -
2 stops24h 05m
Deal found 9/6![Multiple Airlines logo]()
$464
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:30 am -
1 stop9h 02m
Tue 10/136:40 pm -
1 stop16h 54m
Deal found 9/8![Air Canada logo]()
$449
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:06 pm -
2 stops14h 59m
Wed 10/146:45 am -
3 stops29h 11m
Deal found 9/9![Multiple Airlines logo]()
$466
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:00 pm -
1 stop6h 22m
Wed 10/147:00 am -
1 stop8h 34m
Deal found 9/9![Delta logo]()
$506
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:10 pm -
1 stop11h 09m
Sat 10/176:10 am -
1 stop9h 24m
Deal found 9/9![Delta logo]()
$426
This Travelocity deal was found by Cheapflights users on 9/10. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:43 am -
1 stop7h 02m
Fri 10/309:30 am -
1 stop9h 29m
Deal found 9/10![Multiple Airlines logo]()
$439
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:20 pm -
1 stop14h 40m
Wed 10/2110:45 am -
1 stop8h 58m
Deal found 9/9![United Airlines logo]()
$459
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:08 am -
1 stop8h 53m
Sat 10/315:50 pm -
1 stop19h 02m
Deal found 9/9![Air Canada logo]()
$519
One-way flights from Boise to OntarioSearch for one-way flight options from Boise to Ontario. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Boise to Ontario. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:10 pm -
1 stop9h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$184
This Delta deal was found by Cheapflights users on 9/11. 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 10/91:40 pm -
1 stop8h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Delta logo]()
$205
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:05 pm -
1 stop9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Air Canada logo]()
$216
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/255:15 am -
2 stops16h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$229
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:05 pm -
1 stop11h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$230
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:10 pm -
1 stop12h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$239
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/268:28 am -
2 stops8h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/98:22 pm -
3 stops33h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$246
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:15 am -
2 stops16h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$249
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:55 pm -
3 stops26h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$262
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:02 am -
1 stop8h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![American Airlines logo]()
$269
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:43 am -
3 stops12h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$283
Find flight deals from Boise to Ontario
Keep the following information in mind while searching for Boise to Ontario flight deals. Data was last updated September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $426 (Delta) |
One-way from | $184 (Delta) |
Popular in | March |
Cheapest in | September |
Average price | $221 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise to Ontario 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 11, 2026.
Use the filters below to find and compare flights from Boise to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseToronto
BOI Boise Air Term. Gowen Fld - YYZ Toronto Pearson Intl
BOIYYZ
Boise Air Term. Gowen Fld
Sun 10/11
11:10 pm-10:23 am
1 stop9h 13m
Toronto Pearson Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$184
BoiseToronto
BOI Boise Air Term. Gowen Fld - YYZ Toronto Pearson Intl
BOIYYZ
Boise Air Term. Gowen Fld
Fri 10/9
1:40 pm-11:59 pm
1 stop8h 19m
Toronto Pearson Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$205
BoiseToronto
BOI Boise Air Term. Gowen Fld - YYZ Toronto Pearson Intl
BOIYYZ
Boise Air Term. Gowen Fld
Wed 9/23
7:05 pm-7:00 am
1 stop9h 55m
Toronto Pearson Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$216
BoiseMontreal
BOI Boise Air Term. Gowen Fld - YUL Montreal Pierre Elliott Trudeau Intl
BOIYUL
Boise Air Term. Gowen Fld
Thu 11/26
8:28 am-6:57 pm
1 stop8h 29m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$230
BoiseMontreal
BOI Boise Air Term. Gowen Fld - YUL Montreal Pierre Elliott Trudeau Intl
BOIYUL
Boise Air Term. Gowen Fld
Wed 11/25
1:41 pm-11:56 pm
1 stop8h 15m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$239
BoiseMontreal
BOI Boise Air Term. Gowen Fld - YUL Montreal Pierre Elliott Trudeau Intl
BOIYUL
Boise Air Term. Gowen Fld
Fri 9/25
11:10 pm-1:36 pm
1 stop12h 26m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$239
BoiseToronto
BOI Boise Air Term. Gowen Fld - YYZ Toronto Pearson Intl
BOIYYZ
Boise Air Term. Gowen Fld
Fri 10/9
8:22 pm-8:00 am
3 stops33h 38m
Toronto Pearson Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$246
Quickest round-trip
BoiseMontreal
BOI Boise Air Term. Gowen Fld - YUL Montreal Pierre Elliott Trudeau Intl
BOIYUL
Boise Air Term. Gowen Fld
Tue 12/29
3:17 pm-11:37 pm
1 stop6h 20m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$262
BoiseToronto
BOI Boise Air Term. Gowen Fld - YYZ Toronto Pearson Intl
BOIYYZ
Boise Air Term. Gowen Fld
Tue 9/22
8:05 am-10:59 pm
2 stops12h 54m
Toronto Pearson Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$274
BoiseMontreal
BOI Boise Air Term. Gowen Fld - YUL Montreal Pierre Elliott Trudeau Intl
BOIYUL
Boise Air Term. Gowen Fld
Wed 9/23
7:05 pm-8:16 am
1 stop11h 11m
Montreal Pierre Elliott Trudeau Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$280
Showing 1-10 of 39 resultsSorted by cheapest first
Best time to book a flight from Boise to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Boise with our price prediction graph.
BOI-YYZ
BOI-YUL
BOI-YHM
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 Boise to Ontario
BOI-CAON
BOI-YYZ
BOI-YUL
BOI-YHM
What is the cheapest month to book a flight from Boise to Region of Ontario?
Currently, May is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of $244). Flying from Boise to Region of Ontario in March is currently the most expensive (average of $727). 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.
How much does it cost to fly round-trip from Boise to Region of Ontario?
Airfare is typical for this route at the moment.
Boise to Region of Ontario flights typically cost between $218 and $855 in October.The cheapest round-trip price found within the last 5 days was $426 on Delta (Oct 9-Oct 16).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 11, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Boise to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Boarding
8.1
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Food
7.0
Reviews
1 / 20
2.0
MediocreChris,Aug 2026
GEG - SFO
Related info for your journey
Find useful and relevant information for your journey from Boise to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Boise to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boise to Ontario by cabin class
Find flights from Boise to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boise and Ontario flights
Browse other Boise and Ontario flight options. Last updated on September 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Boise to Ontario
Discover the top 2 airlines that operate flights from Boise to Ontario. 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 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$236 | Average$516 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$244 | Average$614 | FlexibilityNo cancel fee | On-time69% |