$157+ Cheap flights from Idaho to Ontario
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
Jun 14 — Jun 211
Round-trip
1 adult, Economy
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Find cheap flights from Idaho 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
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Cheapest flights from Idaho to OntarioExplore the most affordable flight options available from Idaho to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.
Explore the most affordable flight options available from Idaho to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.
This Delta deal was found by Cheapflights users on 5/12. 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.
Tue 7/75:20 am
GEG
- YYZ
1 stop8h 15m
Delta
Thu 7/97:24 pm
YYZ
- GEG
1 stop6h 42m
Delta
Deal found 5/12![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 5/11. 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.
Tue 9/221:43 pm
BOI
- YYZ
1 stop8h 21m
Delta
Sat 9/265:50 pm
YYZ
- BOI
1 stop8h 06m
Delta
Deal found 5/11![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 5/13. 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.
Tue 7/75:20 am
GEG
- YYZ
1 stop8h 15m
Delta
Sat 7/116:04 am
YYZ
- GEG
2 stops16h 21m
Delta
Deal found 5/13![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sat 8/87:05 pm
BOI
- YYZ
1 stop9h 55m
United Airlines
Fri 8/149:00 pm
YYZ
- BOI
2 stops14h 34m
United Airlines
Deal found 5/12![United Airlines logo]()
$386
This Delta deal was found by Cheapflights users on 5/11. 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.
Thu 7/25:59 pm
BOI
- YYZ
2 stops12h 56m
Delta
Wed 7/87:24 pm
YYZ
- BOI
1 stop6h 22m
Delta
Deal found 5/11![Delta logo]()
$387
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:12 pm
BOI
- YYZ
1 stop19h 25m
American Airlines
Fri 7/107:17 am
YYZ
- BOI
1 stop9h 03m
American Airlines
Deal found 5/11![American Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/25:00 am
GEG
- YYZ
1 stop13h 32m
United Airlines
Sat 6/136:30 am
YYZ
- GEG
1 stop19h 34m
United Airlines
Deal found 5/12![United Airlines logo]()
$413
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Fri 6/122:01 pm
GEG
- YYZ
1 stop17h 57m
American Airlines
Sat 6/136:18 pm
YYZ
- GEG
1 stop20h 43m
American Airlines
Deal found 5/13![American Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:00 am
GEG
- YYZ
1 stop13h 32m
United Airlines
Fri 6/511:00 am
YYZ
- GEG
2 stops15h 14m
United Airlines
Deal found 5/11![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 5/12. 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 5/315:35 am
GEG
- YYZ
1 stop8h 00m
Delta
Tue 6/165:45 pm
YYZ
- GEG
1 stop9h 14m
Delta
Deal found 5/12![Delta logo]()
$420
This Delta deal was found by Cheapflights users on 5/13. 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 8/82:53 pm
BOI
- YYZ
1 stop6h 21m
Delta
Fri 8/1411:40 am
YYZ
- BOI
1 stop12h 39m
Delta
Deal found 5/13![Delta logo]()
$420
This Delta deal was found by Cheapflights users on 5/12. 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 5/315:35 am
GEG
- YYZ
1 stop8h 00m
Delta
Mon 6/152:29 pm
YYZ
- GEG
2 stops11h 38m
Delta
Deal found 5/12![Delta logo]()
$429
Best flights from Idaho to OntarioDiscover carefully curated flight deals from Idaho to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 15, 2026.
Discover carefully curated flight deals from Idaho to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 15, 2026.
This Delta deal was found by Cheapflights users on 5/12. 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.
Tue 7/75:20 am
GEG
- YYZ
1 stop8h 15m
Delta
Thu 7/97:24 pm
YYZ
- GEG
1 stop6h 42m
Delta
Deal found 5/12![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Mon 11/96:55 pm
BOI
- YYZ
1 stop9h 50m
United Airlines
Wed 11/115:16 pm
YYZ
- BOI
1 stop8h 43m
United Airlines
Deal found 5/13![United Airlines logo]()
$377
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/82:26 pm
IDA
- YYZ
2 stops18h 32m
American Airlines
Mon 6/156:24 pm
YYZ
- IDA
1 stop21h 32m
American Airlines
Deal found 5/11![American Airlines logo]()
$635
This Delta deal was found by Cheapflights users on 5/10. 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 6/712:47 pm
GEG
- YYZ
1 stop8h 11m
Delta
Sun 6/216:15 am
YYZ
- GEG
1 stop8h 21m
Delta
Deal found 5/10![Delta logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 5/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:14 pm
IDA
- YYZ
2 stops21h 31m
Alaska Airlines
Wed 9/234:55 pm
YYZ
- IDA
1 stop8h 01m
Alaska Airlines
Deal found 5/11![Alaska Airlines logo]()
$763
This Delta deal was found by Cheapflights users on 5/11. 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 7/310:48 pm
GEG
- YYZ
1 stop8h 35m
Delta
Mon 7/66:30 am
YYZ
- GEG
1 stop9h 48m
Delta
Deal found 5/11![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/112:38 pm
BOI
- YYZ
1 stop6h 06m
United Airlines
Thu 7/167:00 am
YYZ
- BOI
1 stop6h 32m
United Airlines
Deal found 5/11![United Airlines logo]()
$430
This Mytrip deal was found by Cheapflights users on 5/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:10 pm
BOI
- YHM
3 stops27h 03m
Multiple Airlines
Thu 7/163:50 pm
YHM
- BOI
3 stops25h 21m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$902
This Delta deal was found by Cheapflights users on 5/11. 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 6/312:27 pm
GEG
- YYZ
1 stop8h 31m
Delta
Sun 6/76:15 am
YYZ
- GEG
1 stop8h 21m
Delta
Deal found 5/11![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Sat 8/87:05 pm
BOI
- YYZ
1 stop9h 55m
United Airlines
Fri 8/146:40 pm
YYZ
- BOI
1 stop16h 54m
United Airlines
Deal found 5/15![United Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 5/12. 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 8/62:02 pm
BOI
- YYZ
1 stop7h 55m
Delta
Fri 8/1411:40 am
YYZ
- BOI
1 stop12h 39m
Delta
Deal found 5/12![Delta logo]()
$377
This oojo deal was found by Cheapflights users on 5/15. 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.
Wed 9/25:40 pm
GEG
- YHM
2 stops20h 35m
WestJet
Wed 10/76:10 pm
YHM
- GEG
2 stops21h 52m
WestJet
Deal found 5/15![WestJet logo]()
$1,065
This Delta deal was found by Cheapflights users on 5/12. 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 9/26:05 am
GEG
- YYZ
1 stop9h 20m
Delta
Wed 10/72:15 pm
YYZ
- GEG
2 stops12h 27m
Delta
Deal found 5/12![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 5/10. 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.
Mon 6/87:08 pm
GEG
- YYZ
2 stops10h 47m
Delta
Sun 6/216:15 am
YYZ
- GEG
1 stop8h 21m
Delta
Deal found 5/10![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/910:41 am
BOI
- YYZ
1 stop8h 51m
United Airlines
Wed 6/106:30 am
YYZ
- BOI
1 stop19h 25m
United Airlines
Deal found 5/13![United Airlines logo]()
$517
This Delta deal was found by Cheapflights users on 5/11. 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.
Thu 7/25:59 pm
BOI
- YYZ
2 stops14h 24m
Delta
Wed 7/812:09 pm
YYZ
- BOI
2 stops13h 37m
Delta
Deal found 5/11![Delta logo]()
$392
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:11 pm
BOI
- YUL
1 stop18h 33m
American Airlines
Fri 6/123:48 pm
YUL
- BOI
1 stop21h 30m
American Airlines
Deal found 5/11![American Airlines logo]()
$713
This Delta deal was found by Cheapflights users on 5/13. 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 8/82:53 pm
BOI
- YYZ
1 stop6h 21m
Delta
Fri 8/1411:40 am
YYZ
- BOI
1 stop12h 39m
Delta
Deal found 5/13![Delta logo]()
$420
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Fri 6/264:14 pm
JAC
- YYZ
2 stops16h 44m
American Airlines
Fri 7/32:55 pm
YYZ
- JAC
1 stop21h 19m
American Airlines
Deal found 5/12![American Airlines logo]()
$779
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/910:35 am
IDA
- YYZ
1 stop8h 57m
United Airlines
Tue 6/1610:45 am
YYZ
- IDA
1 stop6h 49m
United Airlines
Deal found 5/11![United Airlines logo]()
$645
This Delta deal was found by Cheapflights users on 5/10. 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 6/2611:45 pm
BOI
- YYZ
1 stop10h 40m
Delta
Sun 7/512:09 pm
YYZ
- BOI
2 stops13h 38m
Delta
Deal found 5/10![Delta logo]()
$430
This Expedia deal was found by Cheapflights users on 5/13. 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.
Sat 6/65:00 am
GEG
- YHM
2 stops15h 13m
Multiple Airlines
Thu 6/119:10 am
YHM
- GEG
2 stops14h 46m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$940
This Expedia deal was found by Cheapflights users on 5/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/32:39 pm
GEG
- YHM
2 stops13h 31m
Multiple Airlines
Mon 7/67:25 am
YHM
- GEG
2 stops12h 34m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$945
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:05 pm
BOI
- YUL
1 stop11h 11m
United Airlines
Sat 8/296:10 am
YUL
- BOI
1 stop7h 18m
United Airlines
Deal found 5/11![United Airlines logo]()
$713
This oojo deal was found by Cheapflights users on 5/14. 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.
Thu 9/107:55 am
GEG
- YHM
2 stops30h 20m
WestJet
Sat 9/126:10 pm
YHM
- GEG
2 stops21h 52m
WestJet
Deal found 5/14![WestJet logo]()
$1,095
This Expedia deal was found by Cheapflights users on 5/13. 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.
Fri 6/125:07 am
GEG
- YHM
2 stops14h 27m
Multiple Airlines
Sat 6/138:30 pm
YHM
- GEG
2 stops17h 30m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$948
This oojo deal was found by Cheapflights users on 5/14. 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 10/117:55 am
GEG
- YHM
2 stops30h 20m
WestJet
Sat 10/246:10 pm
YHM
- GEG
2 stops25h 59m
WestJet
Deal found 5/14![WestJet logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 5/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:10 pm
IDA
- YYZ
2 stops15h 44m
United Airlines
Wed 9/2310:45 am
YYZ
- IDA
1 stop6h 44m
United Airlines
Deal found 5/10![United Airlines logo]()
$775
This Expedia deal was found by Cheapflights users on 5/12. 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.
Wed 8/56:23 am
BOI
- YHM
2 stops14h 11m
Multiple Airlines
Fri 8/147:25 am
YHM
- BOI
2 stops12h 46m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$958
This Delta deal was found by Cheapflights users on 5/11. 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.
Tue 6/97:00 pm
IDA
- YYZ
2 stops11h 55m
Delta
Tue 6/165:45 pm
YYZ
- IDA
1 stop6h 46m
Delta
Deal found 5/11![Delta logo]()
$561
Last-minute flights from Idaho to OntarioDiscover last-minute flight deals from Idaho to Ontario. Data last updated May 15, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Ontario. Data last updated May 15, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 5/11. 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.
Mon 5/256:00 am
BOI
- YYZ
2 stops10h 31m
Delta
Thu 5/281:34 pm
YYZ
- BOI
1 stop10h 54m
Delta
Deal found 5/11![Delta logo]()
$430
This Delta deal was found by Cheapflights users on 5/12. 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 5/2910:40 pm
GEG
- YYZ
1 stop10h 39m
Delta
Wed 6/106:30 am
YYZ
- GEG
1 stop9h 48m
Delta
Deal found 5/12![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 5/12. 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 5/315:35 am
GEG
- YYZ
1 stop8h 00m
Delta
Tue 6/165:45 pm
YYZ
- GEG
1 stop9h 14m
Delta
Deal found 5/12![Delta logo]()
$420
This Delta deal was found by Cheapflights users on 5/12. 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 5/315:35 am
GEG
- YYZ
1 stop8h 00m
Delta
Mon 6/152:29 pm
YYZ
- GEG
2 stops11h 38m
Delta
Deal found 5/12![Delta logo]()
$429
This Delta deal was found by Cheapflights users on 5/12. 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.
Mon 6/15:35 am
GEG
- YYZ
2 stops14h 24m
Delta
Thu 6/116:30 am
YYZ
- GEG
1 stop9h 48m
Delta
Deal found 5/12![Delta logo]()
$386
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/25:00 am
GEG
- YYZ
1 stop13h 32m
United Airlines
Sat 6/136:30 am
YYZ
- GEG
1 stop19h 34m
United Airlines
Deal found 5/12![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:00 am
GEG
- YYZ
1 stop13h 32m
United Airlines
Fri 6/511:00 am
YYZ
- GEG
2 stops15h 14m
United Airlines
Deal found 5/11![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 5/12. 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 6/312:27 pm
GEG
- YYZ
1 stop8h 31m
Delta
Tue 6/165:45 pm
YYZ
- GEG
1 stop9h 14m
Delta
Deal found 5/12![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 5/12. 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 6/312:27 pm
GEG
- YYZ
1 stop8h 31m
Delta
Sun 6/76:15 am
YYZ
- GEG
2 stops10h 01m
Delta
Deal found 5/12![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 5/11. 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.
Mon 6/87:08 pm
GEG
- YYZ
2 stops10h 47m
Delta
Sun 6/216:15 am
YYZ
- GEG
1 stop8h 21m
Delta
Deal found 5/11![Delta logo]()
$430
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Fri 6/122:01 pm
GEG
- YYZ
1 stop17h 57m
American Airlines
Sat 6/136:18 pm
YYZ
- GEG
1 stop20h 43m
American Airlines
Deal found 5/13![American Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 5/11. 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.
Tue 6/302:04 pm
BOI
- YYZ
1 stop7h 54m
Delta
Thu 7/97:24 pm
YYZ
- BOI
1 stop6h 22m
Delta
Deal found 5/11![Delta logo]()
$377
One-way flights from Idaho to OntarioSearch for one-way flight options from Idaho to Ontario. Find affordable one-way fares based on user searches. Data last updated May 15, 2026.
Search for one-way flight options from Idaho to Ontario. Find affordable one-way fares based on user searches. Data last updated May 15, 2026.
This Delta deal was found by Cheapflights users on 5/11. 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 9/25:45 am
GEG
- YYZ
2 stops14h 13m
Delta
Deal found 5/11![Delta logo]()
$157
This American Airlines deal was found by Cheapflights users on 5/13. 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 6/305:44 am
GEG
- YYZ
1 stop8h 44m
American Airlines
Deal found 5/13![American Airlines logo]()
$158
This Delta deal was found by Cheapflights users on 5/14. 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.
Mon 6/811:45 pm
BOI
- YYZ
1 stop8h 38m
Delta
Deal found 5/14![Delta logo]()
$159
This Delta deal was found by Cheapflights users on 5/13. 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.
Tue 7/217:08 pm
GEG
- YYZ
2 stops13h 11m
Delta
Deal found 5/13![Delta logo]()
$164
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Mon 6/87:05 pm
BOI
- YYZ
2 stops12h 49m
United Airlines
Deal found 5/14![United Airlines logo]()
$164
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:01 pm
GEG
- YYZ
1 stop19h 34m
American Airlines
Deal found 5/10![American Airlines logo]()
$165
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Mon 6/83:12 pm
BOI
- YYZ
1 stop19h 23m
American Airlines
Deal found 5/14![American Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 7/273:50 pm
IDA
- YYZ
2 stops31h 15m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 5/14. 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 9/310:09 am
GEG
- YYZ
3 stops34h 50m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$207
This Delta deal was found by Cheapflights users on 5/13. 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 9/35:45 am
GEG
- YYZ
2 stops14h 13m
Delta
Deal found 5/13![Delta logo]()
$208
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Sat 6/610:35 am
IDA
- YYZ
1 stop8h 57m
United Airlines
Deal found 5/13![United Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 5/13. 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 6/66:54 pm
IDA
- YYZ
2 stops12h 01m
Delta
Deal found 5/13![Delta logo]()
$222
Find flight deals from Idaho to Ontario
Keep the following information in mind while searching for Idaho to Ontario flight deals. Data was last updated May 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $377 (Delta) |
One-way from | $157 (Delta) |
Popular in | March |
Cheapest in | January |
Average price | $728 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho 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 2,558,603 searches. Data last updated May 15, 2026.
Use the filters below to find and compare flights from Idaho to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SpokaneToronto
GEG - YYZ
GEGYYZ
Spokane
Tue 7/7
5:20 am-4:35 pm
1 stop8h 15m
Toronto Pearson Intl
Thu 7/9
7:24 pm-11:06 pm
1 stop6h 42m
$377
BoiseToronto
BOI - YYZ
BOIYYZ
Boise Air Term. Gowen Fld
Mon 11/9
6:55 pm-6:45 am
1 stop9h 50m
Toronto Pearson Intl
Wed 11/11
5:16 pm-11:59 pm
1 stop8h 43m
$377
SpokaneToronto
GEG - YYZ
GEGYYZ
Spokane
Sun 6/7
12:47 pm-11:58 pm
1 stop8h 11m
Toronto Pearson Intl
Sun 6/21
6:15 am-11:36 am
1 stop8h 21m
$377
SpokaneToronto
GEG - YYZ
GEGYYZ
Spokane
Fri 7/3
10:48 pm-10:23 am
1 stop8h 35m
Toronto Pearson Intl
Mon 7/6
6:30 am-1:18 pm
1 stop9h 48m
$377
SpokaneToronto
GEG - YYZ
GEGYYZ
Spokane
Wed 6/3
12:27 pm-11:58 pm
1 stop8h 31m
Toronto Pearson Intl
Sun 6/7
6:15 am-11:36 am
1 stop8h 21m
$377
BoiseToronto
BOI - YYZ
BOIYYZ
Boise Air Term. Gowen Fld
Thu 8/6
2:02 pm-11:57 pm
1 stop7h 55m
Toronto Pearson Intl
Fri 8/14
11:40 am-10:19 pm
1 stop12h 39m
$377
SpokaneToronto
GEG - YYZ
GEGYYZ
Spokane
Wed 9/2
6:05 am-6:25 pm
1 stop9h 20m
Toronto Pearson Intl
Wed 10/7
2:15 pm-11:42 pm
2 stops12h 27m
$387
SpokaneToronto
GEG - YYZ
GEGYYZ
Spokane
Mon 6/8
7:08 pm-8:55 am
2 stops10h 47m
Toronto Pearson Intl
Sun 6/21
6:15 am-11:36 am
1 stop8h 21m
$387
BoiseToronto
BOI - YYZ
BOIYYZ
Boise Air Term. Gowen Fld
Thu 7/2
5:59 pm-10:23 am
2 stops14h 24m
Toronto Pearson Intl
Wed 7/8
12:09 pm-11:46 pm
2 stops13h 37m
$392
BoiseToronto
BOI - YYZ
BOIYYZ
Boise Air Term. Gowen Fld
Sat 8/8
2:53 pm-11:14 pm
1 stop6h 21m
Toronto Pearson Intl
Fri 8/14
11:40 am-10:19 pm
1 stop12h 39m
$420
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Idaho to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Idaho with our price prediction graph.
GEG-YYZ
BOI-YYZ
IDA-YYZ
BOI-YHM
GEG-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 Idaho to Ontario
USID-CAON
GEG-YYZ
BOI-YYZ
IDA-YYZ
BOI-YHM
What is the cheapest month to book a flight from Idaho to Region of Ontario?
Currently, August is the cheapest month in which you can book a flight from Idaho to Region of Ontario (average of $159). Flying from Idaho to Region of Ontario in February is currently the most expensive (average of $449). 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.
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 May 15, 2026.
Read through reviews of airlines operating flights from Idaho to Ontario, such as Delta and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Overall
7.9
Food
7.2
Boarding
8.1
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Idaho 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.
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Alternative routes for Idaho 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 Idaho to Ontario by cabin class
Find flights from Idaho to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Ontario flights
Browse other Idaho and Ontario flight options. Last updated on May 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Ontario
Find the right flight back to Idaho after your stay in Ontario
Idaho to Ontario flights
Consider these flights traveling from Idaho to Ontario.
Top 2 airlines flying from Idaho to Ontario
Discover the top 2 airlines that operate flights from Idaho 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 2,558,603 searches. Data last updated May 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$653 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$236 | Average$416 | FlexibilityNo cancel fee | On-timeN/A |