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Cheap flights from Ontario to Boston from $95

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Boston departing on 5/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Boston

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Boston.
Frontier Logo
6:47 pm - 12:07 pmONT-BOS
14h 20m1 stop
Frontier Logo
11:56 am - 7:12 pmBOS-ONT
10h 16m1 stop
$188Frontier
Find Deal
mié., may. 7 - lun., jun. 2
Frontier Logo
8:38 pm - 10:52 amONT-BOS
11h 14m1 stop
Frontier Logo
11:56 am - 7:12 pmBOS-ONT
10h 16m1 stop
$198Frontier
Find Deal
jue., may. 29 - lun., jun. 9
American Airlines Logo
10:51 am - 11:33 pmONT-BOS
9h 42m1 stop
American Airlines Logo
12:35 pm - 6:23 pmBOS-ONT
8h 48m1 stop
$269American Airlines
Find Deal
sáb., may. 24 - vie., may. 30
American Airlines Logo
10:40 pm - 9:20 amONT-BOS
7h 40m1 stop
American Airlines Logo
6:45 am - 11:50 amBOS-ONT
8h 05m1 stop
$270American Airlines
Find Deal
sáb., may. 24 - vie., may. 30
Delta Logo
4:57 pm - 6:25 amONT-BOS
10h 28m1 stop
Delta Logo
6:47 pm - 11:42 pmBOS-ONT
7h 55m1 stop
$297Delta
Find Deal
sáb., may. 24 - jue., may. 29
United Airlines Logo
6:41 pm - 8:08 amONT-BOS
10h 27m1 stop
United Airlines Logo
3:37 pm - 9:10 pmBOS-ONT
8h 33m1 stop
$299United Airlines
Find Deal
mié., may. 28 - mié., jun. 4
United Airlines Logo
6:34 pm - 6:01 amONT-BOS
8h 27m1 stop
United Airlines Logo
9:43 am - 5:37 pmBOS-ONT
10h 54m2 stops
$304United Airlines
Find Deal
sáb., may. 31 - mar., ago. 19
Delta Logo
12:18 pm - 1:17 amONT-BOS
9h 59m1 stop
Delta Logo
4:50 pm - 10:25 pmBOS-ONT
8h 35m1 stop
$312Delta
Find Deal
vie., may. 30 - mié., jun. 11
Southwest Logo
6:40 am - 8:05 pmONT-BOS
10h 25m1 stop
Southwest Logo
6:40 am - 12:40 pmBOS-ONT
9h 00m2 stops
$334Southwest
Find Deal
lun., sep. 8 - vie., sep. 12
Southwest Logo
9:20 pm - 9:50 amONT-BOS
9h 30m1 stop
Southwest Logo
5:45 am - 1:00 pmBOS-ONT
10h 15m2 stops
$377Southwest
Find Deal
mar., jul. 1 - mar., jul. 8

Frontier flights from Ontario to Boston

Our best Frontier deals on Ontario to Boston flight tickets
Frontier
May 7
ONT6:47 pmOntario
14h 20m
1 stop
BOS12:07 pmBoston Logan Intl
Jun 2
BOS11:56 amBoston Logan Intl
10h 16m
1 stop
ONT7:12 pmOntario
Frontier
May 29
ONT8:38 pmOntario
11h 14m
1 stop
BOS10:52 amBoston Logan Intl
Jun 9
BOS11:56 amBoston Logan Intl
10h 16m
1 stop
ONT7:12 pmOntario
Frontier
May 25
ONT8:38 pmOntario
11h 14m
1 stop
BOS10:52 amBoston Logan Intl
May 30
BOS12:01 pmBoston Logan Intl
10h 42m
1 stop
ONT7:43 pmOntario

American Airlines flights from Ontario to Boston

Our best American Airlines deals on Ontario to Boston flight tickets
American Airlines
May 24
ONT10:51 amOntario
9h 42m
1 stop
BOS11:33 pmBoston Logan Intl
May 30
BOS12:35 pmBoston Logan Intl
8h 48m
1 stop
ONT6:23 pmOntario
American Airlines
May 24
ONT10:40 pmOntario
7h 40m
1 stop
BOS9:20 amBoston Logan Intl
May 30
BOS6:45 amBoston Logan Intl
8h 05m
1 stop
ONT11:50 amOntario
American Airlines
May 24
ONT10:40 pmOntario
7h 40m
1 stop
BOS9:20 amBoston Logan Intl
May 30
BOS6:45 amBoston Logan Intl
8h 05m
1 stop
ONT11:50 amOntario

See travel insights to Boston from

How to get the cheapest flight ticket from Ontario to Boston

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

What is the cheapest month to fly to Boston?

In general, August is the cheapest month to fly from Ontario to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $368. If you aren’t able to travel during the month of August, then book flights to Boston from Ontario during September instead. Flights to Boston in September, while not as cheap as those in August, still average around $374.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from Ontario to Boston is on a Wednesday when prices can be found for as low as $394. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $517.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Ontario to Boston in the afternoon for as low as $358. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $476 per ticket.

How far in advance should I book a flight to Boston?

You are more likely to see cheaper flights to Boston from Ontario when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $437 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Ontario for as low as $373 on momondo.

How have Ontario to Boston flight prices changed over time?

As of April 2025, prices for Ontario to Boston flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Boston (ONT to BOS) flight deals and tips

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

Best Price Found

$95

Fastest flight time

7h 20m

Direct flights

None

Airports in Boston

1 airport
The best one-way flight to Boston from Ontario in the past 72 hours is $95. The best round-trip flight deal from Ontario to Boston found on momondo in the last 72 hours is $188.
The fastest flight from Ontario to Boston takes 7h 20m
There are no direct flights from Ontario to Boston. Popular non-direct route for this connection is Ontario Airport - Boston Logan Intl Airport.
There is 1 airport near Boston: Boston Logan Intl (BOS)

  • How far is Ontario to Boston Logan Intl by plane?

    The distance between Ontario and Boston Logan Intl is about 2558.5 mi. Flights usually cover this in 7h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Boston Logan Intl Airport?

    Prices for flights from Ontario Airport to Boston Logan Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Boston Logan Intl Airport?

  • How old do you have to be to fly from Ontario Airport to Boston Logan Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The required travel and health documents for your Boston Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Boston Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Ontario to Boston?


Best airlines flying from Ontario to Boston

Compare and see reviews for airlines that fly from Ontario to Boston with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $131Free CancellationRating
6.3
7,940 reviews
Search Spirit Airlines flights
JetBluePriceFrom $247Free CancellationRating
7.3
2,923 reviews
Search JetBlue flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
8,684 reviews
Search United Airlines flights
American AirlinesPriceFrom $293Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $296Free CancellationRating
8.0
7,920 reviews
Search Delta flights
SouthwestPriceFrom $308Free CancellationRating
8.0
4,286 reviews
Search Southwest flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Hampton
Old Orchard Beach
Nashua
York Beach
Plymouth
Cambridge
Brockton
Laconia
Concord
Everett
Warwick
Middletown
Narragansett
Wells
Kennebunkport
Revere
Gloucester

Why use momondo?

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

It is quick and easy to find Ontario to Boston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boston that suits you.

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

momondo does allow users to show only those flights to Boston from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Boston?

momondo provides multiple filters to help you find the best flight to Boston 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 Boston right now. Can momondo alert me if prices change?

Price alerts on flights to Boston from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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