Cheap Flights from Ontario International Airport to New Hampshire from $330 Roundtrip

Flight deals from Ontario International Airport to New Hampshire

Looking for a cheap last-minute deal or the best roundtrip flight from Ontario International Airport to New Hampshire? If you want to travel next month, roundtrip fares start from $501. Find the lowest prices on one-way and roundtrip tickets right here.

Manchester.$329 per passenger.Departing Thu, Sep 10, returning Tue, Sep 15.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Ontario International on Thu, Sep 10, arriving in Manchester.Inbound indirect flight with Southwest Airlines, departing from Manchester on Tue, Sep 15, arriving in Ontario International.Price includes taxes and charges.From $329, select.

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Flying from Ontario International Airport to New Hampshire

Arm yourself with these facts on the fly.

Cheapest flight found	$330
Cheapest month to fly	September

How to find cheap flights from Ontario International Airport to New Hampshire

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Ontario International Airport to New Hampshire. Other savvy travelers recently found round-trip flights from $330 and one-way tickets from $188. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in September

The cheapest time to fly from Ontario International Airport to New Hampshire is currently September.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Ontario International Airport to anywhere you choose in New Hampshire.

Watch as flight prices go up and down

With Price Alerts, we'll let you know when flight prices from Ontario International Airport to your chosen airport in New Hampshire go up or down so you can book when the time is just right.

Relax – these are fee-free plane tickets

With us, there are no added fees – the New Hampshire Airport to New Hampshire flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Ontario International Airport to New Hampshire?

There are currently no direct flights from Ontario International Airport to New Hampshire, but we've found some other routes to United States – check them out now.

What is the average price of a flight from Ontario International Airport to New Hampshire?

We looked at all of the upcoming round-trip flights from Ontario International Airport to New Hampshire we could find over the next 12 months. It looks like $330 is the best price. This is good, compared to the average New Hampshire ticket price of $330.

What is the cheapest month to fly from Ontario International Airport to New Hampshire?

The cheapest month to fly from Ontario International Airport to New Hampshire is currently September.

On which upcoming date is it cheapest to fly from Ontario International Airport to New Hampshire?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ontario International Airport to New Hampshire on Thursday, September 10, 2026.

If I'm flying from Ontario International Airport, where in New Hampshire is cheapest to fly to?

If you're flying from Ontario International, the cheapest city in New Hampshire to fly into is Manchester. The cheapest airport serving Manchester at the moment is Manchester.