$126+ Cheap flights from Ontario (ONT) to New Hampshire
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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MHT
Oct 15 — Oct 221
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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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 September 15, 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 September 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:13 am -
1 stop9h 46m
Wed 10/289:03 am -
1 stop11h 57m
Deal found 9/14![Alaska Airlines logo]()
$251
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:56 pm -
1 stop9h 30m
Wed 10/289:03 am -
1 stop11h 57m
Deal found 9/14![Alaska Airlines logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:56 pm -
1 stop9h 30m
Thu 10/294:58 pm -
1 stop9h 44m
Deal found 9/14![Alaska Airlines logo]()
$285
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:50 pm -
1 stop7h 25m
Thu 11/55:00 am -
1 stop12h 05m
Deal found 9/14![Southwest logo]()
$292
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 11/125:59 pm -
1 stop10h 21m
Thu 12/35:20 am -
1 stop8h 48m
Deal found 9/14![Delta logo]()
$297
This Delta deal was found by Cheapflights users on 9/14. 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.
Fri 11/131:15 pm -
1 stop7h 42m
Wed 12/26:00 am -
1 stop9h 17m
Deal found 9/14![Delta logo]()
$308
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:02 am -
1 stop14h 57m
Fri 10/234:58 pm -
1 stop9h 44m
Deal found 9/14![Alaska Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:45 pm -
1 stop7h 35m
Sat 10/245:15 am -
1 stop8h 05m
Deal found 9/14![Southwest logo]()
$320
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 10/187:34 pm -
1 stop7h 11m
Wed 10/215:17 am -
1 stop11h 13m
Deal found 9/14![American Airlines logo]()
$322
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:20 pm -
2 stops9h 50m
Sun 11/15:00 am -
1 stop12h 05m
Deal found 9/14![Southwest logo]()
$331
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:13 pm -
1 stop14h 13m
Wed 10/216:40 pm -
1 stop18h 37m
Deal found 9/14![Alaska Airlines logo]()
$336
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:55 pm -
1 stop13h 45m
Sat 10/244:50 pm -
1 stop7h 35m
Deal found 9/11![Southwest logo]()
$342
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 September 15, 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 September 15, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Tue 10/2011:55 pm -
1 stop13h 45m
Sat 10/2412:45 pm -
2 stops11h 40m
Deal found 9/11![Southwest logo]()
$363
This Delta deal was found by Cheapflights users on 9/12. 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.
Sat 10/175:03 pm -
1 stop10h 27m
Sat 10/246:05 am -
1 stop9h 31m
Deal found 9/12![Delta logo]()
$387
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 10/286:02 am -
1 stop14h 57m
Mon 11/29:03 am -
1 stop11h 00m
Deal found 9/10![Alaska Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 11/106:00 am -
2 stops14h 21m
Wed 11/115:50 am -
2 stops15h 11m
Deal found 9/14![United Airlines logo]()
$417
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:45 pm -
2 stops18h 36m
Tue 12/15:46 pm -
2 stops21h 52m
Deal found 9/10![American Airlines logo]()
$487
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:50 am -
2 stops8h 45m
Wed 10/2812:50 pm -
2 stops11h 00m
Deal found 9/10![Southwest logo]()
$377
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.
Thu 10/291:35 pm -
1 stop7h 24m
Sun 11/15:30 am -
1 stop8h 36m
Deal found 9/11![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 9/12. 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 11/45:03 pm -
1 stop10h 22m
Mon 11/96:45 pm -
1 stop8h 04m
Deal found 9/12![Delta logo]()
$387
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:07 pm -
1 stop9h 13m
Thu 12/37:00 am -
1 stop12h 05m
Deal found 9/14![Alaska Airlines logo]()
$461
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:30 am -
2 stops9h 55m
Sat 12/55:30 am -
2 stops10h 15m
Deal found 9/10![Southwest logo]()
$422
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:00 am -
1 stop8h 02m
Sat 10/313:23 pm -
1 stop8h 28m
Deal found 9/10![United Airlines logo]()
$469
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/127:34 pm -
2 stops18h 15m
Fri 10/165:16 pm -
2 stops29h 27m
Deal found 9/14![American Airlines logo]()
$507
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:13 am -
1 stop9h 46m
Wed 10/286:40 pm -
1 stop32h 02m
Deal found 9/9![Alaska Airlines logo]()
$470
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.
Thu 1/215:00 am -
2 stops13h 54m
Mon 1/2511:45 am -
2 stops11h 35m
Deal found 9/9![United Airlines logo]()
$487
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:37 pm -
2 stops25h 12m
Thu 10/155:16 pm -
2 stops18h 54m
Deal found 9/11![American Airlines logo]()
$507
This Delta deal was found by Cheapflights users on 9/14. 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.
Sun 10/2511:56 am -
1 stop9h 02m
Thu 11/57:55 am -
1 stop12h 17m
Deal found 9/14![Delta logo]()
$473
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1910:55 am -
1 stop7h 25m
Fri 11/275:30 am -
2 stops11h 35m
Deal found 9/14![Southwest logo]()
$482
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/247:00 am -
1 stop8h 43m
Thu 10/293:23 pm -
1 stop8h 28m
Deal found 9/13![United Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/1211:59 pm -
2 stops13h 50m
Sat 10/175:16 pm -
2 stops19h 19m
Deal found 9/14![American Airlines logo]()
$507
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1512:00 pm -
1 stop9h 05m
Mon 1/47:00 am -
1 stop11h 05m
Deal found 9/9![Alaska Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/301:32 pm -
1 stop7h 18m
Tue 11/36:00 am -
2 stops9h 33m
Deal found 9/14![United Airlines logo]()
$502
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:34 pm -
2 stops18h 15m
Tue 10/135:16 pm -
2 stops19h 19m
Deal found 9/11![American Airlines logo]()
$507
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 10/141:05 pm -
2 stops24h 44m
Sat 10/175:16 pm -
2 stops19h 19m
Deal found 9/12![American Airlines logo]()
$507
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:06 am -
1 stop8h 04m
Mon 10/53:45 pm -
1 stop9h 14m
Deal found 9/11![United Airlines logo]()
$518
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:55 pm -
1 stop8h 20m
Tue 9/295:35 am -
2 stops10h 35m
Deal found 9/10![Southwest logo]()
$592
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/171:05 pm -
2 stops24h 44m
Tue 10/205:16 pm -
2 stops18h 54m
Deal found 9/14![American Airlines logo]()
$507
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/267:00 am -
1 stop8h 43m
Wed 9/305:08 pm -
1 stop8h 41m
Deal found 9/10![United Airlines logo]()
$551
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am -
2 stops11h 15m
Sat 10/34:50 pm -
1 stop7h 30m
Deal found 9/13![Southwest logo]()
$612
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 10/144:29 pm -
2 stops21h 20m
Mon 10/195:16 pm -
2 stops23h 14m
Deal found 9/12![American Airlines logo]()
$507
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:37 pm -
2 stops25h 12m
Tue 10/135:16 pm -
2 stops19h 19m
Deal found 9/11![American Airlines logo]()
$507
Last-minute flights from Ontario to New HampshireDiscover last-minute flight deals from Ontario to New Hampshire. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to New Hampshire. Data last updated September 15, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/14. 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 9/285:15 pm -
1 stop10h 15m
Tue 10/66:05 am -
1 stop9h 31m
Deal found 9/14![Delta logo]()
$342
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:13 pm -
1 stop14h 13m
Wed 10/216:40 pm -
1 stop18h 37m
Deal found 9/14![Alaska Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:45 pm -
1 stop7h 35m
Sat 10/245:15 am -
1 stop8h 05m
Deal found 9/14![Southwest logo]()
$320
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/174:42 pm -
2 stops10h 30m
Wed 10/216:40 pm -
1 stop18h 37m
Deal found 9/14![Alaska Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 10/187:34 pm -
1 stop7h 11m
Wed 10/215:17 am -
1 stop11h 13m
Deal found 9/14![American Airlines logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:56 pm -
1 stop9h 30m
Tue 10/279:03 am -
1 stop11h 57m
Deal found 9/14![Alaska Airlines logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:56 pm -
1 stop9h 30m
Thu 10/294:58 pm -
1 stop9h 44m
Deal found 9/14![Alaska Airlines logo]()
$285
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:02 am -
1 stop14h 57m
Fri 10/234:58 pm -
1 stop9h 44m
Deal found 9/14![Alaska Airlines logo]()
$314
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:55 pm -
1 stop13h 45m
Sat 10/244:50 pm -
1 stop7h 35m
Deal found 9/11![Southwest logo]()
$342
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:13 am -
1 stop9h 46m
Tue 10/279:03 am -
1 stop11h 57m
Deal found 9/14![Alaska Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:20 pm -
2 stops9h 50m
Sun 11/15:00 am -
1 stop12h 05m
Deal found 9/14![Southwest logo]()
$331
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:50 pm -
1 stop7h 25m
Thu 11/55:00 am -
1 stop12h 05m
Deal found 9/14![Southwest logo]()
$292
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 September 15, 2026.
Search for one-way flight options from Ontario to New Hampshire. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:13 am -
1 stop9h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Alaska Airlines logo]()
$126
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:56 pm -
1 stop9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Alaska Airlines logo]()
$143
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 11/1712:18 pm -
1 stop8h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$149
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:56 pm -
1 stop9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Alaska Airlines logo]()
$160
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:15 am -
2 stops25h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$163
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 12/255:00 am -
2 stops10h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$165
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:13 am -
1 stop9h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Alaska Airlines logo]()
$169
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 10/248:03 am -
1 stop9h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$181
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:13 am -
1 stop9h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Alaska Airlines logo]()
$184
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:40 am -
2 stops10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Southwest logo]()
$189
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 10/2312:16 pm -
1 stop8h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$190
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am -
2 stops13h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$200
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $251 (Alaska Airlines) |
One-way from | $126 (Alaska Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $394 |
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 7,457,451 searches. Data last updated September 15, 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 Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Thu 10/1
11:54 am-12:29 am
1 stop9h 35m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 10/10
6:00 pm-7:35 am
1 stop10h 35m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$184
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Tue 11/3
6:00 am-4:38 pm
1 stop7h 38m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$194
OntarioPortland
ONT Ontario - PWM Portland
ONTPWM
Ontario
Mon 11/23
12:18 pm-11:31 pm
1 stop8h 13m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$195
OntarioPortland
ONT Ontario - PWM Portland
ONTPWM
Ontario
Fri 10/23
11:15 pm-12:22 pm
2 stops10h 07m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$195
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Fri 11/27
1:20 pm-1:15 am
1 stop8h 55m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Wed 3/10
12:00 pm-11:59 pm
1 stop8h 59m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$207
OntarioPortland
ONT Ontario - PWM Portland
ONTPWM
Ontario
Mon 11/23
6:50 pm-9:50 am
2 stops12h 00m
Portland
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$215
Quickest round-trip
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 1/2
11:52 pm-10:17 am
1 stop7h 25m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$239
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sun 11/8
9:25 am-9:24 pm
1 stop8h 59m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$239
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-MHT
ONT-PWM
ONT-ORH
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-MHT
ONT-PWM
ONT-ORH
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 September 15, 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.
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Overall
8.0
Entertainment
7.5
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.
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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 September 15, 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$362 | Average$522 | FlexibilityNo cancel fee | On-time63% |