Cheap flights from Ontario to Boston from $126
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 2/8. 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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Fly from
Fly to
Route
Depart
Return
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Wed 2/17
12:49 pm-11:56 pm
1 stop8h 07m
Boston Logan Intl
Wed 3/3
4:53 pm-10:10 pm
1 stop8h 17m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Thu 1/21
6:20 am-4:34 pm
1 stop7h 14m
Boston Logan Intl
Mon 1/25
2:55 pm-11:16 pm
1 stop11h 21m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Wed 11/4
1:55 pm-11:45 pm
1 stop6h 50m
Boston Logan Intl
Wed 11/11
5:00 am-10:10 am
1 stop8h 10m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 12/12
8:20 am-6:55 pm
1 stop7h 35m
Boston Logan Intl
Tue 12/15
4:40 pm-9:40 pm
1 stop8h 00m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 11/7
7:00 am-5:24 pm
1 stop7h 24m
Boston Logan Intl
Tue 11/10
9:00 am-3:33 pm
1 stop9h 33m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Tue 10/27
6:59 am-7:16 pm
1 stop9h 17m
Boston Logan Intl
Tue 11/3
3:28 pm-9:40 pm
1 stop9h 12m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 11/7
5:03 pm-6:30 am
1 stop10h 27m
Boston Logan Intl
Tue 11/10
6:45 pm-11:49 pm
1 stop8h 04m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Thu 11/26
12:18 pm-11:22 pm
1 stop8h 04m
Boston Logan Intl
Wed 12/2
6:05 am-12:17 pm
1 stop9h 12m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Thu 1/21
7:00 am-5:40 am
1 stop19h 40m
Boston Logan Intl
Mon 1/25
4:56 pm-5:22 pm
2 stops27h 26m
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 10/31
11:13 am-11:59 pm
1 stop9h 46m
Boston Logan Intl
Tue 11/3
5:44 pm-11:18 am
1 stop20h 34m
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 typical price of a round-trip flight between Ontario and Boston?
Prices are currently low for flights on this route.
Typical prices usually range from $366 to $519.The lowest price recently found on this route was $251.
What is the cheapest month to fly to Boston?
In general, February 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 $338. If you aren’t able to travel during the month of February, then book flights to Boston from Ontario during March instead. Flights to Boston in March, while not as cheap as those in February, still average around $356.
What is the cheapest day to depart on your flight to Boston?
The cheapest day to depart from Ontario to Boston is on a Tuesday when prices can be found for as low as $421. 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 $522.
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 evening. momondo users have found flights departing from Ontario to Boston in the evening for as low as $418. 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 $478 per ticket.
How far in advance should I book a flight from Ontario to Boston?
You are more likely to see cheaper flights to Boston from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $422 when searching 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 $358 on momondo.
What is the cheapest airline that flies from Ontario to Boston Logan Intl?
Southwest, Delta, and United Airlines are the most popular carriers operating from Ontario to Boston Logan Intl
What airlines fly to Boston?
JetBlue, American Airlines and United Airlines are the top three most popular airlines that fly to Boston from Ontario according to our data. JetBlue is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 8 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Ontario and Boston?
Chicago (MDW) was the most common stop: 24% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Ontario to Boston?
Flights via Baltimore (BWI) offer the lowest average round-trip price of $292.
Which layover airport has the shortest travel time from Ontario to Boston?
Flights connecting via Baltimore (BWI) have the shortest average one-way travel time: 7h 20m.
Which layover airport has the shortest connection time from Ontario to Boston?
Baltimore (BWI) has the shortest average layover time for this route: 1h 03m.
When to book flights from Ontario to Boston
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
Frequently asked questions about flying from Ontario to Boston
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 18m, 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?
As of October 2026, there are 5 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Boston is American Airlines (33% of total bookings). The next most popular airlines are Southwest (29%), United Airlines (14%), and JetBlue (12%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $189 | Free Cancellation | Rating 7.8 8,633 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 7.4 10,308 reviews | |||
| PriceFrom $264 | Free Cancellation | Rating 7.1 3,045 reviews | |||
| PriceFrom $284 | Free Cancellation | Rating 7.9 4,219 reviews | |||
| PriceFrom $296 | Free Cancellation | Rating 7.0 12,134 reviews |
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWhy 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.