$214+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MHT
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to New Hampshire with Cheapflights
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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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Best
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One-way
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 October 30, 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 October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/195:30 am -
1 stop8h 10m
Fri 1/17:15 am -
2 stops10h 25m
Deal found 10/27![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/28:40 am -
2 stops10h 30m
Wed 12/239:10 am -
2 stops14h 50m
Deal found 10/28![Southwest logo]()
$510
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2011:55 pm -
1 stop7h 55m
Fri 11/273:10 pm -
2 stops10h 50m
Deal found 10/27![Southwest logo]()
$569
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/198:40 am -
2 stops9h 40m
Fri 11/273:10 pm -
2 stops10h 50m
Deal found 10/27![Southwest logo]()
$590
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/129:25 am -
2 stops11h 34m
Wed 11/189:25 am -
2 stops13h 50m
Deal found 10/26![United Airlines logo]()
$609
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/1311:55 pm -
1 stop8h 00m
Tue 11/177:15 am -
1 stop14h 00m
Deal found 10/29![Southwest logo]()
$632
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 October 30, 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 October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/79:00 am -
2 stops8h 50m
Tue 1/125:30 am -
2 stops10h 40m
Deal found 10/26![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/129:25 am -
2 stops11h 34m
Tue 11/179:25 am -
2 stops13h 50m
Deal found 10/25![United Airlines logo]()
$657
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/195:30 am -
1 stop8h 10m
Fri 1/17:15 am -
2 stops10h 25m
Deal found 10/27![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/28:40 am -
2 stops10h 30m
Wed 12/239:10 am -
2 stops14h 50m
Deal found 10/28![Southwest logo]()
$510
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/179:25 am -
2 stops11h 34m
Sun 11/222:38 pm -
2 stops11h 10m
Deal found 10/29![United Airlines logo]()
$661
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/198:40 am -
2 stops9h 40m
Fri 11/273:10 pm -
2 stops10h 50m
Deal found 10/27![Southwest logo]()
$590
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/235:00 am -
2 stops15h 59m
Thu 11/262:38 pm -
2 stops24h 55m
Deal found 10/28![United Airlines logo]()
$732
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/255:00 am -
2 stops15h 59m
Thu 11/262:38 pm -
2 stops24h 55m
Deal found 10/28![United Airlines logo]()
$732
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/1211:15 am -
2 stops9h 40m
Mon 11/162:10 pm -
2 stops10h 35m
Deal found 10/27![Southwest logo]()
$707
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/1811:52 pm -
2 stops11h 08m
Thu 12/242:35 pm -
2 stops33h 25m
Deal found 10/26![United Airlines logo]()
$750
Last-minute flights from Ontario to New HampshireDiscover last-minute flight deals from Ontario to New Hampshire. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to New Hampshire. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/129:25 am -
2 stops11h 34m
Wed 11/189:25 am -
2 stops13h 50m
Deal found 10/26![United Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 11/129:25 am -
2 stops11h 34m
Tue 11/179:25 am -
2 stops13h 50m
Deal found 10/25![United Airlines logo]()
$657
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/129:25 am -
2 stops11h 34m
Sun 11/222:38 pm -
2 stops11h 10m
Deal found 10/29![United Airlines logo]()
$661
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/1211:15 am -
2 stops9h 40m
Mon 11/162:10 pm -
2 stops10h 35m
Deal found 10/27![Southwest logo]()
$707
This Southwest deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/1311:55 pm -
1 stop8h 00m
Tue 11/177:15 am -
1 stop14h 00m
Deal found 10/29![Southwest logo]()
$632
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/198:40 am -
2 stops9h 40m
Fri 11/273:10 pm -
2 stops10h 50m
Deal found 10/27![Southwest logo]()
$590
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2011:55 pm -
1 stop7h 55m
Fri 11/273:10 pm -
2 stops10h 50m
Deal found 10/27![Southwest logo]()
$569
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 October 30, 2026.
Search for one-way flight options from Ontario to New Hampshire. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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.
Sun 12/611:30 am -
2 stops9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$214
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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.
Sun 11/2211:55 pm -
1 stop13h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:40 pm -
3 stops58h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/611:30 am -
3 stops46h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/1110:55 am -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/1211:55 pm -
1 stop13h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$319
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 12/165:00 am -
2 stops30h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![United Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/1212:01 pm -
3 stops44h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Multiple Airlines logo]()
$349
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $387 (Southwest) |
One-way from | $214 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $451 |
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 October 30, 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
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Sun 11/22
11:55 pm-4:40 pm
1 stop13h 45m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$269
Quickest round-trip
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Wed 11/11
10:55 am-9:20 pm
1 stop7h 25m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$314
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Thu 11/12
11:55 pm-4:40 pm
1 stop13h 45m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$319
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Thu 1/7
9:00 am-8:50 pm
2 stops8h 50m
Manchester
Tue 1/12
5:30 am-1:10 pm
2 stops10h 40m
$387
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Sat 11/7
6:00 am-11:59 pm
2 stops14h 59m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$407
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Sat 12/19
5:30 am-4:40 pm
1 stop8h 10m
Manchester
Fri 1/1
7:15 am-2:40 pm
2 stops10h 25m
$452
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Fri 11/27
6:00 am-11:59 pm
2 stops14h 59m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$486
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Mon 12/14
6:40 pm-2:03 pm
2 stops16h 23m
Manchester
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$487
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Wed 12/2
8:40 am-10:10 pm
2 stops10h 30m
Manchester
Wed 12/23
9:10 am-9:00 pm
2 stops14h 50m
$510
OntarioManchester
ONT Ontario - MHT Manchester
ONTMHT
Ontario
Thu 11/19
8:40 am-9:20 pm
2 stops9h 40m
Manchester
Fri 11/27
3:10 pm-11:00 pm
2 stops10h 50m
$590
Showing 1-10 of 16 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-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-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 October 30, 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
7.4
Overall
7.9
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.4
Overall
7.9
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
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 October 30, 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 October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$362 | Average$516 | FlexibilityNo cancel fee | On-time63% |