Which layover airport offers the lowest fares from Ontario to Boston?

Flights via Baltimore (BWI) offer the lowest average round-trip price of $292.

What is the cheapest airline that flies from Ontario to Boston Logan Intl?

Delta, Alaska Airlines, and Southwest are the most popular carriers operating from Ontario to Boston Logan Intl

Which airport is the most popular layover for flights between Ontario and Boston?

Dallas (DFW) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

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 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 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.

$168 Cheap Flights from Ontario to Boston in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Boston

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Enter your travel dates to find the best prices.

4:09 pm - 5:40 amONT Ontario-BOS Boston Logan Intl

10h 31m1 stop Seattle/Tacoma Intl

9:03 am - 6:17 pmBOS Boston Logan Intl-ONT Ontario

12h 14m1 stop Seattle/Tacoma Intl

$381Alaska Airlines

Tue, Nov 10 - Wed, Nov 11

12:16 pm - 1:20 amONT Ontario-BOS Boston Logan Intl

10h 04m1 stop Atlanta Hartsfield-Jackson

2:15 pm - 7:30 pmBOS Boston Logan Intl-ONT Ontario

8h 15m1 stop Atlanta Hartsfield-Jackson

$385Delta

Sat, Oct 24 - Sat, Oct 31

11:52 am - 11:03 amONT Ontario-BOS Boston Logan Intl

20h 11m2 stops Denver Intl Minneapolis St Paul

12:39 pm - 10:35 amBOS Boston Logan Intl-ONT Ontario

24h 56m3 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth Denver Intl

$385Multiple Airlines

Sat, Nov 7 - Mon, Nov 9

1:05 pm - 11:45 pmONT Ontario-BOS Boston Logan Intl

7h 40m1 stop Phoenix Sky Harbor Intl

3:31 pm - 10:57 pmBOS Boston Logan Intl-ONT Ontario

10h 26m1 stop Dallas/Fort Worth

$386American Airlines

Mon, Oct 26 - Tue, Nov 3

12:16 pm - 1:20 amONT Ontario-BOS Boston Logan Intl

10h 04m1 stop Atlanta Hartsfield-Jackson

2:15 pm - 7:30 pmBOS Boston Logan Intl-ONT Ontario

8h 15m1 stop Atlanta Hartsfield-Jackson

$386Delta

Sat, Oct 24 - Sat, Oct 31

5:44 am - 4:55 pmONT Ontario-BOS Boston Logan Intl

8h 11m1 stop Dallas/Fort Worth

5:29 pm - 11:59 pmBOS Boston Logan Intl-ONT Ontario

9h 30m1 stop Chicago O'Hare Intl

$387American Airlines

Fri, Dec 25 - Tue, Jan 5

11:25 am - 10:10 pmONT Ontario-BOS Boston Logan Intl

7h 45m1 stop Nashville Intl

7:05 am - 1:05 pmBOS Boston Logan Intl-ONT Ontario

9h 00m1 stop Chicago Midway

$387Southwest

Thu, Dec 10 - Sun, Dec 13

11:55 pm - 12:00 pmONT Ontario-BOS Boston Logan Intl

9h 05m1 stop Chicago Midway

5:00 am - 9:55 amBOS Boston Logan Intl-ONT Ontario

7h 55m1 stop Denver Intl

$387Southwest

Sun, Dec 13 - Thu, Dec 17

1:32 pm - 11:50 pmONT Ontario-BOS Boston Logan Intl

7h 18m1 stop Denver Intl

8:05 am - 3:33 pmBOS Boston Logan Intl-ONT Ontario

10h 28m1 stop San Francisco

$387United Airlines

Fri, Nov 6 - Mon, Nov 9

9:25 am - 9:24 pmONT Ontario-BOS Boston Logan Intl

8h 59m1 stop San Francisco

9:00 am - 3:33 pmBOS Boston Logan Intl-ONT Ontario

9h 33m1 stop San Francisco

$387United Airlines

Thu, Nov 12 - Mon, Nov 16

Cheap last minute flights

Enter your travel dates to find the best prices.

6:20 am - 7:41 pmONT Ontario-BOS Boston Logan Intl

10h 21m1 stop Seattle/Tacoma Intl

6:05 am - 12:36 pmBOS Boston Logan Intl-ONT Ontario

9h 31m1 stop Salt Lake City

$476Delta

Wed, Oct 7 - Tue, Oct 13

11:56 am - 11:58 pmONT Ontario-BOS Boston Logan Intl

9h 02m1 stop Seattle/Tacoma Intl

3:47 pm - 10:43 pmBOS Boston Logan Intl-ONT Ontario

9h 56m1 stop Seattle/Tacoma Intl

$476Delta

Wed, Oct 7 - Wed, Oct 14

6:50 am - 6:35 pmONT Ontario-BOS Boston Logan Intl

8h 45m2 stops Denver Intl Chicago Midway

10:55 am - 8:50 pmBOS Boston Logan Intl-ONT Ontario

12h 55m2 stops Chicago Midway Dallas Love Field

$492Southwest

Wed, Oct 7 - Wed, Oct 14

6:50 am - 6:35 pmONT Ontario-BOS Boston Logan Intl

8h 45m2 stops Denver Intl Chicago Midway

10:55 am - 5:45 pmBOS Boston Logan Intl-ONT Ontario

9h 50m1 stop Chicago Midway

$547Southwest

Wed, Oct 7 - Wed, Oct 14

8:03 am - 8:57 pmONT Ontario-BOS Boston Logan Intl

9h 54m1 stop San Francisco

4:15 pm - 10:51 pmBOS Boston Logan Intl-ONT Ontario

9h 36m1 stop San Francisco

$565United Airlines

Wed, Oct 7 - Wed, Oct 14

12:37 pm - 11:37 pmONT Ontario-BOS Boston Logan Intl

8h 00m1 stop Dallas/Fort Worth

5:17 am - 1:30 pmBOS Boston Logan Intl-ONT Ontario

11h 13m1 stop Dallas/Fort Worth

$569American Airlines

Sun, Oct 4 - Thu, Oct 8

1:24 pm - 11:59 pmONT Ontario-BOS Boston Logan Intl

7h 35m1 stop Denver Intl

7:45 am - 3:22 pmBOS Boston Logan Intl-ONT Ontario

10h 37m1 stop San Francisco

$570United Airlines

Fri, Oct 9 - Fri, Oct 16

11:59 pm - 2:04 pmONT Ontario-BOS Boston Logan Intl

11h 05m2 stops Dallas/Fort Worth Charlotte Douglas

5:17 am - 1:30 pmBOS Boston Logan Intl-ONT Ontario

11h 13m1 stop Dallas/Fort Worth

$574American Airlines

Sun, Oct 4 - Thu, Oct 8

11:13 am - 11:59 pmONT Ontario-BOS Boston Logan Intl

9h 46m1 stop Seattle/Tacoma Intl

6:40 pm - 10:17 amBOS Boston Logan Intl-ONT Ontario

18h 37m1 stop Seattle/Tacoma Intl

$633Alaska Airlines

Tue, Oct 6 - Wed, Oct 7

7:25 am - 6:12 amONT Ontario-BOS Boston Logan Intl

19h 47m1 stop Portland

6:40 pm - 10:17 amBOS Boston Logan Intl-ONT Ontario

18h 37m1 stop Seattle/Tacoma Intl

$654Alaska Airlines

Tue, Oct 6 - Fri, Oct 9

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Southwest flights from Ontario to Boston

Our best Southwest deals on Ontario to Boston flight tickets

Southwest

Oct 17

ONT9:40 amOntario

10h 40m

2 stops

BOS11:20 pmBoston Logan Intl

Oct 24

BOS9:20 amBoston Logan Intl

8h 10m

1 stop

ONT2:30 pmOntario

$392

Southwest

Nov 5

ONT12:10 pmOntario

10h 05m

2 stops

BOS1:15 amBoston Logan Intl

Nov 9

BOS5:00 amBoston Logan Intl

11h 00m

2 stops

ONT1:00 pmOntario

$397

Southwest

Nov 4

ONT6:25 pmOntario

10h 40m

2 stops

BOS8:05 amBoston Logan Intl

Nov 8

BOS5:00 amBoston Logan Intl

12h 05m

1 stop

ONT2:05 pmOntario

$398

Alaska Airlines flights from Ontario to Boston

Our best Alaska Airlines deals on Ontario to Boston flight tickets

Alaska Airlines

Nov 10

ONT4:09 pmOntario

10h 31m

1 stop

BOS5:40 amBoston Logan Intl

Nov 11

BOS9:03 amBoston Logan Intl

12h 14m

1 stop

ONT6:17 pmOntario

$381

Alaska Airlines

Oct 24

ONT6:02 amOntario

14h 57m

1 stop

BOS11:59 pmBoston Logan Intl

Oct 31

BOS9:03 amBoston Logan Intl

30h 03m

1 stop

ONT12:06 pmOntario

$394

Alaska Airlines

Oct 24

ONT6:02 amOntario

14h 57m

1 stop

BOS11:59 pmBoston Logan Intl

Oct 31

BOS7:03 amBoston Logan Intl

32h 03m

1 stop

ONT12:06 pmOntario

$395

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 11/10

4:09 pm-5:40 am

1 stop10h 31m

Boston Logan Intl

Wed 11/11

9:03 am-6:17 pm

1 stop12h 14m

$381

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sat 10/24

12:16 pm-1:20 am

1 stop10h 04m

Boston Logan Intl

Sat 10/31

2:15 pm-7:30 pm

1 stop8h 15m

$385

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sat 11/7

11:52 am-11:03 am

2 stops20h 11m

Boston Logan Intl

Mon 11/9

12:39 pm-10:35 am

3 stops24h 56m

$385

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Mon 10/26

1:05 pm-11:45 pm

1 stop7h 40m

Boston Logan Intl

Tue 11/3

3:31 pm-10:57 pm

1 stop10h 26m

$386

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sat 10/24

12:16 pm-1:20 am

1 stop10h 04m

Boston Logan Intl

Sat 10/31

2:15 pm-7:30 pm

1 stop8h 15m

$386

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Fri 12/25

5:44 am-4:55 pm

1 stop8h 11m

Boston Logan Intl

Tue 1/5

5:29 pm-11:59 pm

1 stop9h 30m

$387

Quickest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 12/10

11:25 am-10:10 pm

1 stop7h 45m

Boston Logan Intl

Sun 12/13

7:05 am-1:05 pm

1 stop9h 00m

$387

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sun 12/13

11:55 pm-12:00 pm

1 stop9h 05m

Boston Logan Intl

Thu 12/17

5:00 am-9:55 am

1 stop7h 55m

$387

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Fri 11/6

1:32 pm-11:50 pm

1 stop7h 18m

Boston Logan Intl

Mon 11/9

8:05 am-3:33 pm

1 stop10h 28m

$387

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 11/12

9:25 am-9:24 pm

1 stop8h 59m

Boston Logan Intl

Mon 11/16

9:00 am-3:33 pm

1 stop9h 33m

$387

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Ontario and Boston?

Prices are currently typical for flights on this route.

Typical prices usually range from $366 to $519.
The lowest price recently found on this route was $381.

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 $420. 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 $516.

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 $477 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.

How have Ontario to Boston flight prices changed over time?

As of October 2026, prices for Ontario to Boston flights are approximately 14% 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	$168
Fastest flight time	6h 50m
Direct flights	None

The best one-way flight to Boston from Ontario in the past 72 hours is $168. The best round-trip flight deal from Ontario to Boston found on momondo in the last 72 hours is $381.

The fastest flight from Ontario to Boston takes 6h 50m

There are no direct flights from Ontario to Boston. There are no popular flight routes from Ontario to Boston.

Search flight deals

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 6h 50m, 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 (30%), United Airlines (14%), and Delta (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
Delta	PriceFrom $189	Free Cancellation	Rating 7.8 8,630 reviews	Search Delta flights
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 10,280 reviews	Search United Airlines flights
JetBlue	PriceFrom $264	Free Cancellation	Rating 7.1 3,044 reviews	Search JetBlue flights
Southwest	PriceFrom $284	Free Cancellation	Rating 7.9 4,215 reviews	Search Southwest flights
American Airlines	PriceFrom $296	Free Cancellation	Rating 7.0 12,127 reviews	Search American Airlines flights

Hampton Beach

Ogunquit

Old Orchard Beach

Salem

Laconia

Kennebunkport

Cambridge

Revere

South Yarmouth

Hampton

Plymouth

Middletown

South Portland

Everett

Gloucester

Seekonk

Brockton

Warwick

Wells

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.

An easier way to manage your Boston trip

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Airports servicing Massachusetts

Nantucket Memorial Airport

Bedford Hanscom Field Airport

Beverly Airport

New Bedford Regional Airport

Hyannis Barnstable Airport

West Tisbury Martha's Vineyard Airport

Worcester Airport

Norwood Memorial Airport

Provincetown Airport

Cape Cod and the Islands Airport

Nantucket Island Airport

Cheap flights from Ontario to Boston from $168

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 10/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Ontario to Boston

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Southwest flights from Ontario to Boston

Our best Southwest deals on Ontario to Boston flight tickets

Alaska Airlines flights from Ontario to Boston

Our best Alaska Airlines deals on Ontario to Boston flight tickets

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

See travel insights to Boston from

How to get the cheapest flight ticket from Ontario to Boston

What is the typical price of a round-trip flight between Ontario and Boston?

What is the cheapest month to fly to Boston?

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

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

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

How have Ontario to Boston flight prices changed over time?

What is the cheapest airline that flies from Ontario to Boston Logan Intl?

What airlines fly to Boston?

Which airport is the most popular layover for flights between Ontario and Boston?

Which layover airport offers the lowest fares from Ontario to Boston?

Which layover airport has the shortest travel time from Ontario to Boston?

Which layover airport has the shortest connection time from Ontario to Boston?

When to book flights from Ontario to Boston

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Boston?

Why use momondo?

An easier way to manage your Boston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Massachusetts

Fly your favorite airline to Boston

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Boston

List of cabin classes available on flights landing in Boston. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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