HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$229+ Cheap flights from Manchester, NH to Ontario (MHT - ONT)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ONT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Manchester to Ontario 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 Manchester to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Manchester (MHT) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$407
(Southwest)

One-way from

$229
(American Airlines)

Popular in

April

Cheapest in

May

Average price

$388
From Manchester to Ontario
Search Deals
One-way flight from Manchester to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Manchester to Ontario

Cheapest flights from Manchester to Ontario
Explore the most affordable flight options available from Manchester to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Southwest deal was found by Cheapflights users on 8/11. 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.
Mon 9/85:30 pmMHT - ONT
1 stop8h 00mSouthwest
Fri 9/1212:45 pmONT - MHT
1 stop7h 40mSouthwest
Deal found 8/11$407
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Mon 8/252:42 pmMHT - ONT
2 stops9h 57mAmerican Airlines
Sat 8/306:17 amONT - MHT
2 stops11h 18mAmerican Airlines
Deal found 8/11$442
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Tue 8/262:42 pmMHT - ONT
2 stops11h 06mAmerican Airlines
Sat 8/3011:59 pmONT - MHT
1 stop8h 36mAmerican Airlines
Deal found 8/11$455
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/309:40 amMHT - ONT
2 stops13h 53mUnited Airlines
Wed 9/36:50 pmONT - MHT
2 stops12h 52mUnited Airlines
Deal found 8/13$462
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:30 pmMHT - ONT
2 stops12h 00mUnited Airlines
Sun 9/146:50 pmONT - MHT
2 stops17h 07mUnited Airlines
Deal found 8/12$496
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/171:30 pmMHT - ONT
2 stops12h 00mUnited Airlines
Mon 10/66:36 pmONT - MHT
2 stops17h 26mUnited Airlines
Deal found 8/12$501
This Southwest deal was found by Cheapflights users on 8/11. 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.
Mon 8/255:50 amMHT - ONT
1 stop8h 45mSouthwest
Sat 8/308:45 amONT - MHT
1 stop9h 05mSouthwest
Deal found 8/11$512
This Southwest deal was found by Cheapflights users on 8/11. 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.
Mon 8/255:50 amMHT - ONT
1 stop8h 45mSouthwest
Fri 8/2912:45 pmONT - MHT
1 stop7h 40mSouthwest
Deal found 8/11$517
This Southwest deal was found by Cheapflights users on 8/11. 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.
Mon 8/257:00 amMHT - ONT
2 stops10h 15mSouthwest
Thu 8/289:15 amONT - MHT
2 stops10h 15mSouthwest
Deal found 8/11$527

Cheapflights Fare Finder

 
Customize your flight search to find flights from Manchester to Ontario 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 August 14, 2025.
Use the filters below to find and compare flights from Manchester to Ontario that are best for you.

Fly from

Manchester

Fly to

Ontario

Route

Depart

Return

Price

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Mon 9/8

5:30 pm-10:30 pm

1 stop8h 00m

Ontario

Fri 9/12

12:45 pm-11:25 pm

1 stop7h 40m

$407

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Mon 8/25

2:42 pm-9:39 pm

2 stops9h 57m

Ontario

Sat 8/30

6:17 am-8:35 pm

2 stops11h 18m

$442

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Tue 8/26

7:54 am-4:06 pm

2 stops11h 12m

Ontario

Sat 8/30

6:17 am-9:13 pm

2 stops11h 56m

$442

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Sat 8/30

9:40 am-8:33 pm

2 stops13h 53m

Ontario

Wed 9/3

6:50 pm-10:42 am

2 stops12h 52m

$462

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Thu 9/11

1:30 pm-10:30 pm

2 stops12h 00m

Ontario

Sun 9/14

6:50 pm-2:57 pm

2 stops17h 07m

$496

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Wed 9/17

1:30 pm-10:30 pm

2 stops12h 00m

Ontario

Mon 10/6

6:36 pm-3:02 pm

2 stops17h 26m

$501

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Mon 8/25

5:50 am-11:35 am

1 stop8h 45m

Ontario

Sat 8/30

8:45 am-8:50 pm

1 stop9h 05m

$512

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Mon 8/25

5:50 am-11:35 am

1 stop8h 45m

Ontario

Fri 8/29

12:45 pm-11:25 pm

1 stop7h 40m

$517

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Mon 8/25

5:50 am-11:35 am

1 stop8h 45m

Ontario

Thu 8/28

9:15 am-10:30 pm

2 stops10h 15m

$522

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Sat 8/30

6:00 am-4:24 pm

2 stops13h 24m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 17 results
1
2

Best time to book a flight from Manchester to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Manchester with our price prediction graph.
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 Manchester to Ontario

What is the cheapest month to book a flight from Manchester, New Hampshire to Ontario?

Currently, August is the cheapest month in which you can book a flight from Manchester, New Hampshire to Ontario (average of $246). Flying from Manchester, New Hampshire to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated August 14, 2025.
Read reviews from past customers who have flown Southwest and American Airlines from Manchester to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Manchester to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Manchester, New Hampshire to Ontario round-trip?

    Cheapflights users have booked flights from Manchester, New Hampshire to Ontario round-trip from $407. Another airline that can offer you cheap pricing is American Airlines. Southwest is currently priced 10% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Manchester, New Hampshire to Ontario one-way?

    $229 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Southwest and United Airlines, with prices starting from $244 and $254, respectively.

  • Can I find deals for flights from Manchester to Ontario that include hotel bookings?

    Yes. In addition to deals on Manchester to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Manchester to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Manchester to Ontario.

  • Can I find deals for business class flights from Manchester to Ontario?

    Yes. Cheapflights offers flight deals from Manchester to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Manchester, New Hampshire to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Manchester, New Hampshire to Ontario (average of $246). Flying from Manchester, New Hampshire to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Manchester to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Los Angeles flights
Boston to Las Vegas flights
Boston to San Francisco flights
Boston to San Diego flights
Boston to Santa Ana flights
Boston to Ontario flights
Boston to Burbank flights
Portland to Las Vegas flights
Boston to Reno flights
Boston to Sacramento flights
Boston to San Jose flights
Manchester to Las Vegas flights
Boston to Palm Springs flights
Portland to San Francisco flights
Boston to Santa Barbara flights
Boston to Long Beach flights
Boston to Oakland flights
Portland to Los Angeles flights
Manchester to San Francisco flights
Manchester to Los Angeles flights
Boston to Fresno flights
Manchester to San Diego flights
Portland to Reno flights
Portland to San Diego flights
Boston to Santa Rosa flights
Boston to San Luis Obispo flights
Portland to Ontario flights
Worcester to Las Vegas flights
Boston to Monterey flights
Portland to Santa Ana flights
Worcester to San Diego flights
Manchester to San Jose flights
Portland to Burbank flights
Portland to Santa Barbara flights
Manchester to Sacramento flights
Portland to San Jose flights
Manchester to San Luis Obispo flights
Manchester to Santa Ana flights
Portland to Palm Springs flights
Boston to Medford flights
Boston to Redding flights
Portland to Sacramento flights
Portland to Oakland flights
Boston to Arcata flights
Lebanon to Las Vegas flights
Manchester to Fresno flights
Boston to Yuma flights
Portland to Long Beach flights
Portland to Fresno flights

Top 2 airlines flying from Manchester to Ontario

Discover the top 2 airlines that operate flights from Manchester to Ontario. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$342Average$526FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$426FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.