Cheap flights from Ontario to Boston from $150

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Boston

Cheap round-trip flights

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United Airlines Logo
6:37 pm - 8:01 amONT  Ontario-BOS Boston Logan Intl
10h 24m1 stop San Francisco
United Airlines Logo
3:00 pm - 9:00 pmBOS  Boston Logan Intl-ONT Ontario
9h 00m1 stop Denver Intl
$372United Airlines
Fri, Jan 22 - Mon, Jan 25
United Airlines Logo
6:40 pm - 7:57 amONT  Ontario-BOS Boston Logan Intl
10h 17m1 stop San Francisco
United Airlines Logo
7:30 am - 12:34 pmBOS  Boston Logan Intl-ONT Ontario
8h 04m1 stop Denver Intl
$372United Airlines
Thu, Dec 3 - Thu, Dec 10
American Airlines Logo
1:24 pm - 11:42 pmONT  Ontario-BOS Boston Logan Intl
7h 18m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:00 am - 11:55 amBOS  Boston Logan Intl-ONT Ontario
8h 55m1 stop Dallas/Fort Worth
$377American Airlines
Thu, Jan 21 - Mon, Jan 25
American Airlines Logo
6:00 am - 5:02 pmONT  Ontario-BOS Boston Logan Intl
8h 02m1 stop Dallas/Fort Worth
American Airlines Logo
12:41 pm - 6:51 pmBOS  Boston Logan Intl-ONT Ontario
9h 10m1 stop Dallas/Fort Worth
$377American Airlines
Fri, Feb 5 - Mon, Feb 8
Delta Logo
12:20 pm - 11:15 pmONT  Ontario-BOS Boston Logan Intl
7h 55m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:10 am - 12:12 pmBOS  Boston Logan Intl-ONT Ontario
9h 02m1 stop Salt Lake City
$377Delta
Sat, Dec 12 - Wed, Jan 6
Delta Logo
1:11 pm - 12:13 amONT  Ontario-BOS Boston Logan Intl
8h 02m1 stop Salt Lake City
Delta Logo
7:35 am - 2:50 pmBOS  Boston Logan Intl-ONT Ontario
10h 15m1 stop Seattle/Tacoma Intl
$377Delta
Tue, Dec 15 - Wed, Jan 6
Alaska Airlines Logo
6:00 am - 5:40 amONT  Ontario-BOS Boston Logan Intl
20h 40m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:28 pm - 10:38 amBOS  Boston Logan Intl-ONT Ontario
19h 10m1 stop Seattle/Tacoma Intl
$377Alaska Airlines
Thu, Jan 7 - Mon, Jan 11
Alaska Airlines Logo
5:01 pm - 5:40 amONT  Ontario-BOS Boston Logan Intl
9h 39m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
7:00 am - 4:05 pmBOS  Boston Logan Intl-ONT Ontario
12h 05m1 stop Seattle/Tacoma Intl
$377Alaska Airlines
Thu, Dec 3 - Wed, Dec 9
Southwest Logo
6:30 am - 4:40 pmONT  Ontario-BOS Boston Logan Intl
7h 10m1 stop Chicago Midway
Southwest Logo
5:10 am - 1:25 pmBOS  Boston Logan Intl-ONT Ontario
11h 15m2 stops Denver Intl Las Vegas Harry Reid Intl
$382Southwest
Fri, Jan 22 - Mon, Jan 25
Southwest Logo
6:10 am - 4:15 pmONT  Ontario-BOS Boston Logan Intl
7h 05m1 stop Denver Intl
Southwest Logo
12:50 pm - 8:15 pmBOS  Boston Logan Intl-ONT Ontario
10h 25m2 stops Denver Intl Las Vegas Harry Reid Intl
$382Southwest
Fri, Feb 5 - Mon, Feb 8

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Alaska Airlines flights from Ontario to Boston

Our best Alaska Airlines deals on Ontario to Boston flight tickets
Alaska Airlines
Dec 3
ONT5:01 pmOntario
9h 39m
1 stop
BOS5:40 amBoston Logan Intl
Dec 9
BOS7:00 amBoston Logan Intl
12h 05m
1 stop
ONT4:05 pmOntario
$378
Alaska Airlines
Feb 4
ONT4:29 pmOntario
10h 11m
1 stop
BOS5:40 amBoston Logan Intl
Feb 8
BOS6:28 pmBoston Logan Intl
19h 10m
1 stop
ONT10:38 amOntario
$379
Alaska Airlines
Dec 3
ONT6:00 amOntario
14h 59m
1 stop
BOS11:59 pmBoston Logan Intl
Dec 10
BOS7:00 amBoston Logan Intl
12h 05m
1 stop
ONT4:05 pmOntario
$380

American Airlines flights from Ontario to Boston

Our best American Airlines deals on Ontario to Boston flight tickets
American Airlines
Dec 8
ONT6:30 amOntario
14h 15m
1 stop
BOS11:45 pmBoston Logan Intl
Dec 15
BOS6:26 amBoston Logan Intl
12h 54m
1 stop
ONT4:20 pmOntario
$383
American Airlines
Feb 10
ONT6:20 amOntario
11h 22m
1 stop
BOS8:42 pmBoston Logan Intl
Feb 17
BOS9:26 amBoston Logan Intl
9h 05m
1 stop
ONT3:31 pmOntario
$399
American Airlines
Dec 3
ONT6:30 amOntario
7h 25m
1 stop
BOS4:55 pmBoston Logan Intl
Dec 9
BOS1:11 pmBoston Logan Intl
7h 59m
1 stop
ONT6:10 pmOntario
$413

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Fri 1/22

6:37 pm-8:01 am

1 stop10h 24m

Boston Logan Intl

Mon 1/25

3:00 pm-9:00 pm

1 stop9h 00m

$372

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 12/3

6:40 pm-7:57 am

1 stop10h 17m

Boston Logan Intl

Thu 12/10

7:30 am-12:34 pm

1 stop8h 04m

$372
Quickest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 1/21

1:24 pm-11:42 pm

1 stop7h 18m

Boston Logan Intl

Mon 1/25

6:00 am-11:55 am

1 stop8h 55m

$377

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Fri 2/5

6:00 am-5:02 pm

1 stop8h 02m

Boston Logan Intl

Mon 2/8

12:41 pm-6:51 pm

1 stop9h 10m

$377

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sat 12/12

12:20 pm-11:15 pm

1 stop7h 55m

Boston Logan Intl

Wed 1/6

6:10 am-12:12 pm

1 stop9h 02m

$377

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 12/15

1:11 pm-12:13 am

1 stop8h 02m

Boston Logan Intl

Wed 1/6

7:35 am-2:50 pm

1 stop10h 15m

$377

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 1/7

6:00 am-5:40 am

1 stop20h 40m

Boston Logan Intl

Mon 1/11

6:28 pm-10:38 am

1 stop19h 10m

$377

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 12/3

5:01 pm-5:40 am

1 stop9h 39m

Boston Logan Intl

Wed 12/9

7:00 am-4:05 pm

1 stop12h 05m

$377

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Fri 1/22

6:30 am-4:40 pm

1 stop7h 10m

Boston Logan Intl

Mon 1/25

5:10 am-1:25 pm

2 stops11h 15m

$382

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Fri 2/5

6:10 am-4:15 pm

1 stop7h 05m

Boston Logan Intl

Mon 2/8

12:50 pm-8:15 pm

2 stops10h 25m

$382

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $374 to $510.
The lowest price recently found on this route was $372.

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 $428. 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 $540.

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 $425. 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 $486 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 $429 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.

How have Ontario to Boston flight prices changed over time?

As of November 2026, prices for Ontario to Boston flights are approximately 3% more expensive 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

$150

Fastest flight time

7h 21m

Direct flights

None
The best one-way flight to Boston from Ontario in the past 72 hours is $150. The best round-trip flight deal from Ontario to Boston found on momondo in the last 72 hours is $372.
The fastest flight from Ontario to Boston takes 7h 21m
There are no direct flights from Ontario to Boston. There are no popular flight routes 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 21m, 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
DeltaPriceFrom $189Free CancellationRating
7.8
8,700 reviews
Search Delta flights
United AirlinesPriceFrom $248Free CancellationRating
7.3
10,474 reviews
Search United Airlines flights
JetBluePriceFrom $264Free CancellationRating
7.1
3,067 reviews
Search JetBlue flights
SouthwestPriceFrom $284Free CancellationRating
8.0
4,219 reviews
Search Southwest flights
American AirlinesPriceFrom $296Free CancellationRating
7.0
12,228 reviews
Search American Airlines flights

Traveling to a place near Boston?

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

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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1 adult
Thu 12/10
Thu 12/17

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