What is the cheapest airline that flies from Ontario to New Hampshire?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Ontario to New Hampshire

When did momondo last update prices for flights from Ontario Airport to New Hampshire?

Prices for flights from Ontario Airport to New Hampshire were last updated today.

How many operators does momondo search for flights from Ontario Airport to New Hampshire?

As of August 2026, there are 5 operators available to choose from for flights from Ontario Airport to New Hampshire.

How old do you have to be to fly from Ontario Airport to New Hampshire?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to New Hampshire.

What documentation or ID do you need to fly to New Hampshire?

The travel and health documents required for your trip to New Hampshire can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at New Hampshire. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$120 Cheap Flights from Ontario to New Hampshire in 2026

Find the cheapest flights from Ontario to New Hampshire

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:53 pm - 8:23 amONT Ontario-BOS Boston Logan Intl

10h 30m1 stop San Francisco

7:30 am - 12:33 pmBOS Boston Logan Intl-ONT Ontario

8h 03m1 stop Denver Intl

$236United Airlines

Wed, Jan 6 - Tue, Jan 12

12:40 pm - 1:10 amONT Ontario-BOS Boston Logan Intl

9h 30m1 stop Denver Intl

5:00 am - 10:10 amBOS Boston Logan Intl-ONT Ontario

8h 10m1 stop Denver Intl

$240Southwest

Thu, Oct 29 - Wed, Nov 4

6:45 am - 4:35 pmONT Ontario-BOS Boston Logan Intl

6h 50m1 stop Chicago Midway

5:05 am - 10:15 amBOS Boston Logan Intl-ONT Ontario

8h 10m1 stop Denver Intl

$240Southwest

Wed, Jan 6 - Wed, Jan 13

1:04 pm - 11:30 pmONT Ontario-BOS Boston Logan Intl

7h 26m1 stop Phoenix Sky Harbor Intl

6:02 am - 11:47 amBOS Boston Logan Intl-ONT Ontario

8h 45m1 stop Dallas/Fort Worth

$241American Airlines

Tue, Sep 15 - Sat, Sep 19

10:25 am - 10:29 pmONT Ontario-BOS Boston Logan Intl

9h 04m1 stop Dallas/Fort Worth

10:00 am - 6:10 pmBOS Boston Logan Intl-ONT Ontario

11h 10m1 stop Phoenix Sky Harbor Intl

$241American Airlines

Wed, Sep 23 - Wed, Nov 18

6:00 am - 5:29 pmONT Ontario-BOS Boston Logan Intl

8h 29m1 stop Houston George Bush Intcntl

6:00 am - 12:18 pmBOS Boston Logan Intl-ONT Ontario

9h 18m1 stop San Francisco

$241United Airlines

Tue, Sep 15 - Thu, Sep 24

5:03 pm - 6:30 amONT Ontario-BOS Boston Logan Intl

10h 27m1 stop Salt Lake City

6:45 pm - 11:58 pmBOS Boston Logan Intl-ONT Ontario

8h 13m1 stop Salt Lake City

$297Delta

Sat, Oct 17 - Wed, Dec 2

1:04 pm - 11:53 pmONT Ontario-BOS Boston Logan Intl

7h 49m1 stop Salt Lake City

3:47 pm - 10:43 pmBOS Boston Logan Intl-ONT Ontario

9h 56m1 stop Seattle/Tacoma Intl

$297Delta

Tue, Sep 29 - Tue, Oct 6

4:09 pm - 5:40 amONT Ontario-BOS Boston Logan Intl

10h 31m1 stop Seattle/Tacoma Intl

7:13 am - 3:13 pmBOS Boston Logan Intl-ONT Ontario

11h 00m1 stop Seattle/Tacoma Intl

$347Alaska Airlines

Thu, Nov 12 - Mon, Nov 16

6:14 pm - 6:09 amONT Ontario-BOS Boston Logan Intl

8h 55m1 stop Portland

7:12 am - 2:16 pmBOS Boston Logan Intl-ONT Ontario

10h 04m1 stop Seattle/Tacoma Intl

$347Alaska Airlines

Mon, Sep 21 - Sat, Sep 26

Cheap last minute flights

Enter your travel dates to find the best prices.

7:05 am - 6:10 pmONT Ontario-BOS Boston Logan Intl

8h 05m1 stop Atlanta Hartsfield-Jackson

5:30 am - 10:42 amBOS Boston Logan Intl-ONT Ontario

8h 12m1 stop Atlanta Hartsfield-Jackson

$421Delta

Tue, Aug 18 - Tue, Sep 1

1:06 pm - 11:57 pmONT Ontario-BOS Boston Logan Intl

7h 51m1 stop Salt Lake City

5:30 am - 10:42 amBOS Boston Logan Intl-ONT Ontario

8h 12m1 stop Atlanta Hartsfield-Jackson

$421Delta

Tue, Aug 18 - Tue, Sep 1

10:29 am - 11:37 pmONT Ontario-BOS Boston Logan Intl

10h 08m1 stop Dallas/Fort Worth

6:45 am - 11:43 amBOS Boston Logan Intl-ONT Ontario

7h 58m1 stop Dallas/Fort Worth

$467American Airlines

Tue, Aug 18 - Wed, Aug 26

12:33 pm - 11:37 pmONT Ontario-BOS Boston Logan Intl

8h 04m1 stop Dallas/Fort Worth

6:45 am - 11:43 amBOS Boston Logan Intl-ONT Ontario

7h 58m1 stop Dallas/Fort Worth

$467American Airlines

Sat, Aug 15 - Sun, Aug 30

5:32 pm - 6:20 amONT Ontario-BOS Boston Logan Intl

9h 48m1 stop Portland

9:33 am - 5:10 pmBOS Boston Logan Intl-ONT Ontario

10h 37m1 stop Portland

$476Alaska Airlines

Sat, Aug 15 - Sat, Aug 29

5:32 pm - 6:20 amONT Ontario-BOS Boston Logan Intl

9h 48m1 stop Portland

9:33 am - 5:10 pmBOS Boston Logan Intl-ONT Ontario

10h 37m1 stop Portland

$476Alaska Airlines

Sat, Aug 15 - Sat, Aug 29

5:00 am - 9:58 pmONT Ontario-BOS Boston Logan Intl

13h 58m2 stops Denver Intl Chicago O'Hare Intl

9:26 am - 8:53 pmBOS Boston Logan Intl-ONT Ontario

14h 27m2 stops Newark Denver Intl

$576United Airlines

Sat, Aug 15 - Sun, Aug 30

5:00 am - 9:58 pmONT Ontario-BOS Boston Logan Intl

13h 58m2 stops Denver Intl Chicago O'Hare Intl

9:26 am - 8:53 pmBOS Boston Logan Intl-ONT Ontario

14h 27m2 stops Newark Denver Intl

$596United Airlines

Sat, Aug 15 - Sun, Aug 30

5:35 am - 11:35 pmONT Ontario-BOS Boston Logan Intl

15h 00m2 stops Phoenix Sky Harbor Intl Nashville Intl

7:30 am - 4:00 pmBOS Boston Logan Intl-ONT Ontario

11h 30m2 stops Chicago Midway Phoenix Sky Harbor Intl

$710Southwest

Sun, Aug 16 - Sun, Aug 23

5:35 am - 11:35 pmONT Ontario-BOS Boston Logan Intl

15h 00m2 stops Phoenix Sky Harbor Intl Nashville Intl

5:00 am - 12:00 pmBOS Boston Logan Intl-ONT Ontario

10h 00m2 stops Lambert-St Louis Austin Bergstrom

$736Southwest

Sun, Aug 16 - Thu, Aug 20

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American Airlines flights from Ontario to New Hampshire

Our best American Airlines deals on Ontario to New Hampshire flight tickets

American Airlines

Oct 16

ONT7:34 pmOntario

7h 24m

1 stop

BOS5:58 amBoston Logan Intl

Oct 20

BOS8:45 amBoston Logan Intl

9h 31m

1 stop

ONT3:16 pmOntario

$288

American Airlines

Oct 20

ONT11:59 pmOntario

11h 35m

2 stops

MHT2:34 pmManchester

Oct 24

MHT6:00 amManchester

12h 16m

2 stops

ONT3:16 pmOntario

$297

American Airlines

Sep 22

ONT12:37 pmOntario

7h 57m

1 stop

BOS11:34 pmBoston Logan Intl

Oct 13

BOS5:17 amBoston Logan Intl

11h 13m

1 stop

ONT1:30 pmOntario

$303

Southwest flights from Ontario to New Hampshire

Our best Southwest deals on Ontario to New Hampshire flight tickets

Southwest

Oct 29

ONT12:40 pmOntario

9h 30m

1 stop

BOS1:10 amBoston Logan Intl

Nov 4

BOS5:00 amBoston Logan Intl

8h 10m

1 stop

ONT10:10 amOntario

$240

Southwest

Sep 11

ONT2:00 pmOntario

7h 35m

1 stop

BOS12:35 amBoston Logan Intl

Sep 12

BOS6:00 amBoston Logan Intl

13h 30m

1 stop

ONT4:30 pmOntario

$278

Southwest

Oct 20

ONT11:55 pmOntario

13h 45m

1 stop

MHT4:40 pmManchester

Oct 24

MHT4:50 pmManchester

7h 30m

1 stop

ONT9:20 pmOntario

$293

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Wed 1/6

6:53 pm-8:23 am

1 stop10h 30m

Boston Logan Intl

Tue 1/12

7:30 am-12:33 pm

1 stop8h 03m

$236

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 10/29

12:40 pm-1:10 am

1 stop9h 30m

Boston Logan Intl

Wed 11/4

5:00 am-10:10 am

1 stop8h 10m

$240

Quickest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Wed 1/6

6:45 am-4:35 pm

1 stop6h 50m

Boston Logan Intl

Wed 1/13

5:05 am-10:15 am

1 stop8h 10m

$240

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 9/15

1:04 pm-11:30 pm

1 stop7h 26m

Boston Logan Intl

Sat 9/19

6:02 am-11:47 am

1 stop8h 45m

$241

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Wed 9/23

10:25 am-10:29 pm

1 stop9h 04m

Boston Logan Intl

Wed 11/18

10:00 am-6:10 pm

1 stop11h 10m

$241

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 9/15

6:00 am-5:29 pm

1 stop8h 29m

Boston Logan Intl

Thu 9/24

6:00 am-12:18 pm

1 stop9h 18m

$241

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sat 10/17

5:03 pm-6:30 am

1 stop10h 27m

Boston Logan Intl

Wed 12/2

6:45 pm-11:58 pm

1 stop8h 13m

$297

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 9/29

1:04 pm-11:53 pm

1 stop7h 49m

Boston Logan Intl

Tue 10/6

3:47 pm-10:43 pm

1 stop9h 56m

$297

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 11/12

4:09 pm-5:40 am

1 stop10h 31m

Boston Logan Intl

Mon 11/16

7:13 am-3:13 pm

1 stop11h 00m

$347

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Mon 9/21

6:14 pm-6:09 am

1 stop8h 55m

Boston Logan Intl

Sat 9/26

7:12 am-2:16 pm

1 stop10h 04m

$347

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to New Hampshire

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

How far in advance should I book a flight from Ontario to New Hampshire?

You are more likely to see cheaper flights to New Hampshire from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to New Hampshire for around $418 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New Hampshire from Ontario for as low as $384 on momondo.

Can stopping save me money on Ontario to New Hampshire flights?

You could potentially save up to 15% on your flight if you consider stops on a Ontario to New Hampshire flight.

Cheap Ontario to New Hampshire flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to New Hampshire

Fastest flight time	6h 50m
Direct flights	None

The fastest flight from Ontario to New Hampshire takes 6h 50m

There are no direct flights from Ontario to New Hampshire. There are no popular flight routes from Ontario to New Hampshire.

Search flight deals

Frequently asked questions about flying from Ontario to New Hampshire

When did momondo last update prices for flights from Ontario Airport to New Hampshire?
Prices for flights from Ontario Airport to New Hampshire were last updated today.
How many operators does momondo search for flights from Ontario Airport to New Hampshire?
As of August 2026, there are 5 operators available to choose from for flights from Ontario Airport to New Hampshire.
How old do you have to be to fly from Ontario Airport to New Hampshire?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to New Hampshire.
What documentation or ID do you need to fly to New Hampshire?
The travel and health documents required for your trip to New Hampshire can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at New Hampshire. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to New Hampshire

Compare and see reviews for airlines that fly from Ontario to New Hampshire with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $362	Free Cancellation	Rating 8.0 4,218 reviews		Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to New Hampshire?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to New Hampshire. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to New Hampshire with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to New Hampshire from Ontario with this policy.

How can momondo help me find flights from Ontario to New Hampshire?

momondo provides multiple filters to help you find the best flight to New Hampshire from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to New Hampshire right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to New Hampshire from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.