$95 Find Cheap Flights from Ontario to Massachusetts

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Massachusetts departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Massachusetts

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Massachusetts, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Massachusetts, as well as popular online travel agencies
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Cheap Flights from Ontario to Massachusetts

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boston
Boston1 stop$292
Albany
Albany1 stop$312
Boston
Boston1 stop$292
Albany
Albany1 stop$312

Book Cheap Ontario to Massachusetts Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Massachusetts that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Massachusetts

Thu, Dec 4 - Thu, Dec 11
American Airlines Logo
4:47 pm - 5:26 amONT-BOS
9h 39m1 stop
American Airlines Logo
9:19 am - 4:02 pmBOS-ONT
9h 43m1 stop
$292American Airlines
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Fri, Dec 12 - Sat, Jan 17
American Airlines Logo
12:55 pm - 11:33 pmONT-BOS
7h 38m1 stop
American Airlines Logo
1:48 pm - 10:48 pmBOS-ONT
12h 00m1 stop
$293American Airlines
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Fri, Jan 16 - Tue, Jan 20
United Airlines Logo
5:05 am - 3:37 pmONT-BOS
7h 32m1 stop
United Airlines Logo
3:15 pm - 8:58 pmBOS-ONT
8h 43m1 stop
$295United Airlines
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Wed, Jan 21 - Tue, Jan 27
Alaska Airlines Logo
11:53 am - 11:54 pmONT-BOS
9h 01m1 stop
Alaska Airlines Logo
7:00 am - 3:08 pmBOS-ONT
11h 08m1 stop
$296Alaska Airlines
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Fri, Dec 12 - Mon, Dec 15
Delta Logo
1:29 pm - 11:41 pmONT-BOS
7h 12m1 stop
Delta Logo
6:46 pm - 11:58 pmBOS-ONT
8h 12m1 stop
$297Delta
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Fri, Jan 16 - Tue, Jan 20
United Airlines Logo
5:05 am - 3:37 pmONT-BOS
7h 32m1 stop
United Airlines Logo
10:30 am - 8:58 pmBOS-ONT
13h 28m2 stops
$300United Airlines
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Wed, Dec 3 - Tue, Dec 9
Delta Logo
10:25 pm - 11:52 amONT-ALB
10h 27m1 stop
Delta Logo
1:48 pm - 11:04 pmALB-ONT
12h 16m2 stops
$312Delta
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Tue, Dec 9 - Sat, Dec 13
Southwest Logo
6:30 am - 4:45 pmONT-BDL
7h 15m1 stop
Southwest Logo
6:15 am - 11:10 amBDL-ONT
7h 55m1 stop
$363Southwest
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Wed, Dec 3 - Mon, Dec 8
Southwest Logo
6:30 am - 4:15 pmONT-ALB
6h 45m1 stop
Southwest Logo
5:10 am - 10:35 amALB-ONT
8h 25m1 stop
$372Southwest
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Fri, May 8 - Mon, May 11
JetBlue Logo
11:25 pm - 10:20 amONT-BOS
7h 55m1 stop
JetBlue Logo
1:00 pm - 10:09 pmBOS-ONT
12h 09m1 stop
$377JetBlue
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Booking Insights

KAYAK's insights & trends for Ontario to Massachusetts flights

Get data-powered insights and trends into flights from Ontario to Massachusetts to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ontario to Massachusetts?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Massachusetts, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Massachusetts is September, when tickets cost $376 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is $574 and $427 respectively.

What’s the cheapest day of the week to fly from Ontario to Massachusetts?

The average price of all round-trip flights from Ontario to Massachusetts clicked on KAYAK for each day over the last 12 months.

For Ontario to Massachusetts, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Massachusetts back to Ontario, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Massachusetts, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Massachusetts, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$95
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Ontario to Boston

FAQs - booking Massachusetts flights

  • How does KAYAK find such low prices on flights from Ontario to Massachusetts?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Massachusetts.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Massachusetts?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Massachusetts?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Massachusetts with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Massachusetts?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Massachusetts?

    The cheapest time of day to fly to Massachusetts is generally in the evening, when round-trip flights cost $405 on average. Morning departures are around 14% more expensive than evening flights, on average. The most expensive time of day to fly to Massachusetts is generally in the morning, which is peak travel time and where the average cost of a ticket is $463.

Reviews of the top 5 airlines serving from Ontario to Massachusetts

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Massachusetts. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Massachusetts? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4238 reviews
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
7.5Entertainment
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

They only offered water for Group 6. Awful announcements from the Crew. Couldn't understand a single word. Barely came by for the trash afterwards. Man, I love water for a premium flight. Wow. Water in a cup.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Friendly crew. Poor food service maybe due to full flight. All in all, you get what you pay for.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

very difficult boarding process - aggressive passengers not the friendliest crew

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

The check in and boarding process was a bit of a cluster. Two people at the counter to check in, three random lines that nobody knew which was for what, and people kept getting shuffled from one line to another for no apparent reason because then they’d get shuffled back and end up getting out further back in the line than they were originally. I only had to hand my already checked bag over and it took 45 minutes. I was never assigned a seat so when I tried to board I was pulled out of line again while someone had to try to manually assign me a seat. During the flight I got up to go to the bathroom, and there was an attendant in the aisle offering pillows etc and it was a 30 min wait unbuckled standing by the bathrooms because she said I couldn’t go past her. First and last time flying jet blue to be honest.

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

Everything you need to know for your flight from Ontario to Massachusetts

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