$108+ Cheap flights from Ontario (ONT) to New Hampshire
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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MHT
Jul 12 — Jul 191
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to New Hampshire 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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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 Ontario to New Hampshire
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Cheapest flights from Ontario to New HampshireExplore the most affordable flight options available from Ontario to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.
Explore the most affordable flight options available from Ontario to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 9/11:50 pm
ONT
- BOS
1 stop7h 15m
Southwest
Wed 9/29:25 am
BOS
- ONT
1 stop8h 00m
Southwest
Deal found 6/7![Southwest logo]()
$216
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:25 am
ONT
- BOS
1 stop11h 45m
Southwest
Wed 8/2610:05 am
BOS
- ONT
1 stop12h 30m
Southwest
Deal found 6/11![Southwest logo]()
$228
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:50 pm
ONT
- BOS
1 stop7h 15m
Southwest
Mon 9/145:00 pm
BOS
- ONT
1 stop8h 10m
Southwest
Deal found 6/10![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:25 am
ONT
- BOS
1 stop11h 45m
Southwest
Sat 8/295:00 am
BOS
- ONT
1 stop12h 30m
Southwest
Deal found 6/12![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:20 pm
ONT
- BOS
2 stops10h 00m
Southwest
Tue 10/205:15 am
BOS
- ONT
1 stop8h 00m
Southwest
Deal found 6/11![Southwest logo]()
$252
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/1812:59 pm
ONT
- BOS
1 stop7h 25m
American Airlines
Wed 8/266:30 am
BOS
- ONT
1 stop8h 33m
American Airlines
Deal found 6/10![American Airlines logo]()
$253
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:50 pm
ONT
- BOS
1 stop8h 26m
JetBlue
Thu 8/274:30 pm
BOS
- ONT
1 stop9h 05m
JetBlue
Deal found 6/11![JetBlue logo]()
$256
This Super.com deal was found by Cheapflights users on 6/7. 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.
Tue 7/2811:51 pm
ONT
- BOS
1 stop11h 31m
JetBlue
Wed 8/194:30 pm
BOS
- ONT
1 stop9h 05m
JetBlue
Deal found 6/7![JetBlue logo]()
$257
This Super.com deal was found by Cheapflights users on 6/8. 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.
Fri 8/1411:50 pm
ONT
- BOS
1 stop11h 32m
JetBlue
Fri 8/214:30 pm
BOS
- ONT
1 stop9h 05m
JetBlue
Deal found 6/8![JetBlue logo]()
$258
This Super.com deal was found by Cheapflights users on 6/8. 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.
Mon 8/1711:50 pm
ONT
- BOS
1 stop8h 26m
JetBlue
Sun 8/302:45 pm
BOS
- ONT
1 stop10h 50m
JetBlue
Deal found 6/8![JetBlue logo]()
$260
This JetBlue deal was found by Cheapflights users on 6/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:51 pm
ONT
- PWM
1 stop10h 54m
JetBlue
Wed 8/122:40 pm
PWM
- ONT
1 stop10h 55m
JetBlue
Deal found 6/8![JetBlue logo]()
$265
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:50 pm
ONT
- PWM
1 stop10h 55m
JetBlue
Wed 8/262:40 pm
PWM
- ONT
1 stop10h 55m
JetBlue
Deal found 6/10![JetBlue logo]()
$296
Best flights from Ontario to New HampshireDiscover carefully curated flight deals from Ontario to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2026.
Discover carefully curated flight deals from Ontario to New Hampshire that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2026.
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:15 am
ONT
- BOS
1 stop6h 45m
Southwest
Sat 10/245:35 am
BOS
- ONT
2 stops12h 10m
Southwest
Deal found 6/11![Southwest logo]()
$276
This JetBlue deal was found by Cheapflights users on 6/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:50 pm
ONT
- BOS
1 stop11h 32m
JetBlue
Tue 9/12:45 pm
BOS
- ONT
1 stop10h 50m
JetBlue
Deal found 6/8![JetBlue logo]()
$296
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:00 pm
ONT
- BOS
1 stop9h 58m
Delta
Mon 11/27:05 am
BOS
- ONT
1 stop13h 12m
Delta
Deal found 6/7![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:14 pm
ONT
- BOS
1 stop8h 55m
Alaska Airlines
Sun 9/139:33 am
BOS
- ONT
1 stop10h 45m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 6/11. 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 9/16:08 am
ONT
- PWM
2 stops14h 51m
United Airlines
Wed 9/25:03 pm
PWM
- ONT
1 stop8h 32m
United Airlines
Deal found 6/11![United Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:59 pm
ONT
- ORH
2 stops13h 52m
American Airlines
Sat 7/185:16 pm
ORH
- ONT
2 stops21h 46m
American Airlines
Deal found 6/7![American Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 8/1111:55 pm
ONT
- BOS
1 stop9h 20m
Southwest
Tue 8/182:45 pm
BOS
- ONT
2 stops10h 15m
Southwest
Deal found 6/7![Southwest logo]()
$277
This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:50 pm
ONT
- BOS
1 stop8h 31m
JetBlue
Thu 8/204:30 pm
BOS
- ONT
1 stop9h 05m
JetBlue
Deal found 6/9![JetBlue logo]()
$296
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:45 am
ONT
- PWM
2 stops11h 14m
Delta
Sat 9/196:02 am
PWM
- ONT
2 stops15h 31m
Delta
Deal found 6/7![Delta logo]()
$370
This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:51 pm
ONT
- BOS
1 stop8h 42m
JetBlue
Tue 8/42:45 pm
BOS
- ONT
1 stop10h 50m
JetBlue
Deal found 6/9![JetBlue logo]()
$346
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:50 pm
ONT
- BOS
1 stop7h 00m
Southwest
Mon 7/275:25 am
BOS
- ONT
1 stop11h 25m
Southwest
Deal found 6/11![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 6/8. 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.
Fri 8/710:00 am
ONT
- BOS
1 stop9h 20m
Southwest
Sat 8/1512:10 pm
BOS
- ONT
2 stops10h 55m
Southwest
Deal found 6/8![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 8/2410:00 pm
ONT
- ORH
2 stops16h 00m
Delta
Mon 8/315:40 pm
ORH
- ONT
2 stops20h 02m
Delta
Deal found 6/8![Delta logo]()
$408
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2011:51 pm
ONT
- PWM
1 stop9h 39m
JetBlue
Thu 7/302:40 pm
PWM
- ONT
1 stop11h 04m
JetBlue
Deal found 6/10![JetBlue logo]()
$393
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:55 pm
ONT
- BOS
1 stop9h 30m
Southwest
Mon 9/75:40 am
BOS
- ONT
1 stop7h 40m
Southwest
Deal found 6/10![Southwest logo]()
$373
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/31:11 pm
ONT
- ORH
2 stops24h 40m
American Airlines
Mon 7/65:16 pm
ORH
- ONT
2 stops29h 43m
American Airlines
Deal found 6/10![American Airlines logo]()
$497
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 10/712:00 pm
ONT
- ORH
2 stops23h 37m
Delta
Mon 10/123:18 pm
ORH
- ONT
2 stops23h 09m
Delta
Deal found 6/10![Delta logo]()
$434
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:30 am
ONT
- BOS
2 stops9h 30m
Southwest
Thu 7/306:25 am
BOS
- ONT
1 stop8h 45m
Southwest
Deal found 6/11![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Sat 7/46:10 am
ONT
- PWM
2 stops24h 01m
United Airlines
Thu 7/95:00 pm
PWM
- ONT
1 stop8h 51m
United Airlines
Deal found 6/9![United Airlines logo]()
$563
This JetBlue deal was found by Cheapflights users on 6/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/111:18 pm
ONT
- PWM
1 stop9h 58m
JetBlue
Thu 8/62:40 pm
PWM
- ONT
1 stop10h 55m
JetBlue
Deal found 6/7![JetBlue logo]()
$427
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 10/712:00 pm
ONT
- ORH
2 stops23h 37m
Delta
Tue 10/133:18 pm
ORH
- ONT
2 stops33h 56m
Delta
Deal found 6/10![Delta logo]()
$434
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:47 pm
ONT
- PWM
1 stop9h 43m
JetBlue
Fri 7/102:40 pm
PWM
- ONT
1 stop10h 56m
JetBlue
Deal found 6/10![JetBlue logo]()
$443
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:20 am
ONT
- MHT
2 stops10h 30m
Southwest
Mon 11/167:20 am
MHT
- ONT
2 stops10h 20m
Southwest
Deal found 6/10![Southwest logo]()
$456
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:00 am
ONT
- PWM
1 stop7h 51m
United Airlines
Fri 9/114:57 pm
PWM
- ONT
1 stop9h 02m
United Airlines
Deal found 6/8![United Airlines logo]()
$673
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2411:55 pm
ONT
- MHT
1 stop7h 55m
Southwest
Sat 8/111:30 am
MHT
- ONT
2 stops9h 20m
Southwest
Deal found 6/12![Southwest logo]()
$461
This JetBlue deal was found by Cheapflights users on 6/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/511:59 pm
ONT
- PWM
1 stop10h 46m
JetBlue
Fri 7/102:40 pm
PWM
- ONT
1 stop10h 56m
JetBlue
Deal found 6/8![JetBlue logo]()
$529
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 10/810:59 pm
ONT
- ORH
2 stops12h 38m
Delta
Mon 10/123:18 pm
ORH
- ONT
2 stops23h 09m
Delta
Deal found 6/10![Delta logo]()
$611
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:50 pm
ONT
- PWM
1 stop11h 04m
JetBlue
Mon 8/312:40 pm
PWM
- ONT
1 stop10h 55m
JetBlue
Deal found 6/10![JetBlue logo]()
$599
This Southwest deal was found by Cheapflights users on 6/8. 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 6/2311:55 pm
ONT
- MHT
1 stop7h 55m
Southwest
Sat 6/2711:30 am
MHT
- ONT
1 stop10h 45m
Southwest
Deal found 6/8![Southwest logo]()
$577
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:00 pm
ONT
- ORH
2 stops16h 00m
Delta
Fri 7/175:40 pm
ORH
- ONT
2 stops27h 50m
Delta
Deal found 6/7![Delta logo]()
$766
Last-minute flights from Ontario to New HampshireDiscover last-minute flight deals from Ontario to New Hampshire. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to New Hampshire. Data last updated June 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/35:21 pm
ONT
- BOS
1 stop9h 44m
Delta
Thu 8/136:05 am
BOS
- ONT
1 stop9h 11m
Delta
Deal found 6/7![Delta logo]()
$332
This JetBlue deal was found by Cheapflights users on 6/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:16 pm
ONT
- PWM
1 stop10h 14m
JetBlue
Sat 7/182:40 pm
PWM
- ONT
1 stop10h 19m
JetBlue
Deal found 6/12![JetBlue logo]()
$265
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:21 pm
ONT
- BOS
1 stop9h 44m
Delta
Thu 7/96:05 am
BOS
- ONT
1 stop9h 05m
Delta
Deal found 6/7![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 6/8. 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 7/46:00 am
ONT
- PWM
2 stops11h 55m
Southwest
Thu 7/93:20 pm
PWM
- ONT
1 stop10h 05m
Southwest
Deal found 6/8![Southwest logo]()
$350
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/75:45 am
ONT
- BOS
1 stop8h 49m
United Airlines
Tue 7/146:00 am
BOS
- ONT
1 stop9h 12m
United Airlines
Deal found 6/9![United Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:15 pm
ONT
- BOS
1 stop7h 30m
American Airlines
Wed 7/296:00 am
BOS
- ONT
1 stop8h 45m
American Airlines
Deal found 6/7![American Airlines logo]()
$348
This Super.com deal was found by Cheapflights users on 6/7. 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.
Sun 7/1211:58 pm
ONT
- BOS
1 stop8h 35m
JetBlue
Thu 8/64:30 pm
BOS
- ONT
1 stop9h 05m
JetBlue
Deal found 6/7![JetBlue logo]()
$340
This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:58 pm
ONT
- PWM
1 stop10h 47m
JetBlue
Thu 7/162:40 pm
PWM
- ONT
1 stop11h 04m
JetBlue
Deal found 6/9![JetBlue logo]()
$346
This Super.com deal was found by Cheapflights users on 6/7. 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.
Tue 7/2811:51 pm
ONT
- BOS
1 stop11h 31m
JetBlue
Wed 8/194:30 pm
BOS
- ONT
1 stop9h 05m
JetBlue
Deal found 6/7![JetBlue logo]()
$257
This Super.com deal was found by Cheapflights users on 6/9. 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.
Tue 7/2811:51 pm
ONT
- BOS
1 stop11h 31m
JetBlue
Tue 8/112:45 pm
BOS
- ONT
1 stop10h 50m
JetBlue
Deal found 6/9![JetBlue logo]()
$293
This JetBlue deal was found by Cheapflights users on 6/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:51 pm
ONT
- BOS
1 stop11h 31m
JetBlue
Tue 8/42:45 pm
BOS
- ONT
1 stop10h 50m
JetBlue
Deal found 6/12![JetBlue logo]()
$346
This Super.com deal was found by Cheapflights users on 6/7. 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.
Tue 7/2811:51 pm
ONT
- BOS
1 stop11h 31m
JetBlue
Wed 8/54:30 pm
BOS
- ONT
1 stop9h 05m
JetBlue
Deal found 6/7![JetBlue logo]()
$350
One-way flights from Ontario to New HampshireSearch for one-way flight options from Ontario to New Hampshire. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
Search for one-way flight options from Ontario to New Hampshire. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This Southwest deal was found by Cheapflights users on 6/9. 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.
Wed 9/1610:55 am
ONT
- BOS
1 stop10h 10m
Southwest
Deal found 6/9![Southwest logo]()
$108
This Southwest deal was found by Cheapflights users on 6/9. 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.
Wed 8/197:25 am
ONT
- BOS
1 stop11h 45m
Southwest
Deal found 6/9![Southwest logo]()
$114
This Super.com deal was found by Cheapflights users on 6/9. 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.
Sun 7/1211:58 pm
ONT
- BOS
1 stop8h 35m
JetBlue
Deal found 6/9![JetBlue logo]()
$123
This Super.com deal was found by Cheapflights users on 6/9. 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.
Tue 8/411:51 pm
ONT
- BOS
1 stop8h 42m
JetBlue
Deal found 6/9![JetBlue logo]()
$124
This Super.com deal was found by Cheapflights users on 6/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:51 pm
ONT
- BOS
1 stop8h 42m
JetBlue
Deal found 6/11![JetBlue logo]()
$126
This Southwest deal was found by Cheapflights users on 6/9. 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.
Mon 8/2411:55 pm
ONT
- BOS
1 stop9h 20m
Southwest
Deal found 6/9![Southwest logo]()
$129
This JetBlue deal was found by Cheapflights users on 6/8. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:50 pm
ONT
- BOS
1 stop8h 31m
JetBlue
Deal found 6/8![JetBlue logo]()
$133
This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1211:58 pm
ONT
- PWM
1 stop10h 47m
JetBlue
Deal found 6/9![JetBlue logo]()
$133
This Jetabroad deal was found by Cheapflights users on 6/8. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:50 pm
ONT
- BOS
1 stop8h 26m
JetBlue
Deal found 6/8![JetBlue logo]()
$135
This JetBlue deal was found by Cheapflights users on 6/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:50 pm
ONT
- PWM
1 stop10h 55m
JetBlue
Deal found 6/7![JetBlue logo]()
$138
This Delta deal was found by Cheapflights users on 6/12. 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 8/265:05 pm
ONT
- BOS
1 stop10h 25m
Delta
Deal found 6/12![Delta logo]()
$149
This Delta deal was found by Cheapflights users on 6/12. 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 8/2612:00 pm
ONT
- PWM
1 stop8h 13m
Delta
Deal found 6/12![Delta logo]()
$149
Find flight deals from Ontario to New Hampshire
Keep the following information in mind while searching for Ontario to New Hampshire flight deals. Data was last updated June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $216 (Southwest) |
One-way from | $108 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $482 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to New Hampshire 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 June 12, 2026.
Use the filters below to find and compare flights from Ontario to New Hampshire that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Tue 10/20
9:15 am-7:00 pm
1 stop6h 45m
Boston Logan Intl
Sat 10/24
5:35 am-2:45 pm
2 stops12h 10m
$276
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Tue 8/11
11:55 pm-12:15 pm
1 stop9h 20m
Boston Logan Intl
Tue 8/18
2:45 pm-10:00 pm
2 stops10h 15m
$277
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Fri 8/14
11:50 pm-2:22 pm
1 stop11h 32m
Boston Logan Intl
Tue 9/1
2:45 pm-10:35 pm
1 stop10h 50m
$296
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Thu 8/13
11:50 pm-11:21 am
1 stop8h 31m
Boston Logan Intl
Thu 8/20
4:30 pm-10:35 pm
1 stop9h 05m
$296
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Mon 10/26
12:00 pm-12:58 am
1 stop9h 58m
Boston Logan Intl
Mon 11/2
7:05 am-5:17 pm
1 stop13h 12m
$327
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Tue 7/28
11:51 pm-11:33 am
1 stop8h 42m
Boston Logan Intl
Tue 8/4
2:45 pm-10:35 pm
1 stop10h 50m
$346
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Wed 7/22
2:50 pm-12:50 am
1 stop7h 00m
Boston Logan Intl
Mon 7/27
5:25 am-1:50 pm
1 stop11h 25m
$357
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Fri 9/11
6:14 pm-6:09 am
1 stop8h 55m
Boston Logan Intl
Sun 9/13
9:33 am-5:18 pm
1 stop10h 45m
$359
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Fri 8/7
10:00 am-10:20 pm
1 stop9h 20m
Boston Logan Intl
Sat 8/15
12:10 pm-8:05 pm
2 stops10h 55m
$368
OntarioPortland
ONT - PWM
ONTPWM
Ontario
Mon 9/14
9:45 am-11:59 pm
2 stops11h 14m
Portland
Sat 9/19
6:02 am-6:33 pm
2 stops15h 31m
$370
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to New Hampshire
Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Ontario with our price prediction graph.
ONT-BOS
ONT-PWM
ONT-ORH
ONT-MHT
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 New Hampshire
ONT-USNH
ONT-BOS
ONT-PWM
ONT-ORH
ONT-MHT
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing New Hampshire
Get insights into the airlines that provide service to New Hampshire. 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 New Hampshire. Reviews last updated June 12, 2026.
Read reviews from past customers who have flown Southwest from Ontario to New Hampshire. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
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 New Hampshire. 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
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Alternative routes for Ontario to New Hampshire
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to New Hampshire by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to New Hampshire by cabin class
Find flights from Ontario to New Hampshire, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and New Hampshire flights
Browse other Ontario and New Hampshire flight options. Last updated on June 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to New Hampshire flights
Consider these flights traveling from Ontario to New Hampshire.
Top airline flying from Ontario to New Hampshire
Discover the top airline that operate flights from Ontario to New Hampshire. 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 June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$436 | Average$533 | FlexibilityNo cancel fee | On-time63% |