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 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 connection time from Ontario to Boston?

Baltimore (BWI) has the shortest average layover time for this route: 1h 03m.

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.

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.

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

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

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 September 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.

$126 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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6:02 am - 11:59 pmONT Ontario-BOS Boston Logan Intl

14h 57m1 stop Seattle/Tacoma Intl

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

18h 37m1 stop Seattle/Tacoma Intl

$251Alaska Airlines

Sat, Oct 17 - Wed, Oct 21

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

9h 46m1 stop Seattle/Tacoma Intl

9:03 am - 6:00 pmBOS Boston Logan Intl-ONT Ontario

11h 57m1 stop Seattle/Tacoma Intl

$251Alaska Airlines

Tue, Oct 20 - Wed, Oct 28

4:29 pm - 5:45 amONT Ontario-BOS Boston Logan Intl

10h 16m1 stop Phoenix Sky Harbor Intl

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

11h 13m1 stop Dallas/Fort Worth

$285American Airlines

Fri, Oct 16 - Tue, Oct 20

2:50 pm - 1:15 amONT Ontario-BOS Boston Logan Intl

7h 25m1 stop Denver Intl

5:00 am - 2:05 pmBOS Boston Logan Intl-ONT Ontario

12h 05m1 stop Denver Intl

$292Southwest

Thu, Oct 29 - Thu, Nov 5

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

10h 04m1 stop Atlanta Hartsfield-Jackson

7:55 am - 5:12 pmBOS Boston Logan Intl-ONT Ontario

12h 17m1 stop Seattle/Tacoma Intl

$297Delta

Tue, Oct 13 - Sat, Oct 17

11:10 pm - 11:03 amONT Ontario-BOS Boston Logan Intl

8h 53m1 stop Atlanta Hartsfield-Jackson

7:50 am - 5:15 pmBOS Boston Logan Intl-ONT Ontario

12h 25m1 stop Seattle/Tacoma Intl

$297Delta

Thu, Nov 12 - Wed, Dec 2

10:30 am - 10:28 pmONT Ontario-BOS Boston Logan Intl

8h 58m1 stop Dallas/Fort Worth

7:00 am - 1:19 pmBOS Boston Logan Intl-ONT Ontario

9h 19m1 stop Dallas/Fort Worth

$319American Airlines

Wed, Nov 18 - Sun, Nov 22

12:45 pm - 11:20 pmONT Ontario-BOS Boston Logan Intl

7h 35m1 stop Denver Intl

5:15 am - 10:20 amBOS Boston Logan Intl-ONT Ontario

8h 05m1 stop Denver Intl

$320Southwest

Sat, Oct 17 - Sat, Oct 24

11:10 am - 10:57 pmONT Ontario-BOS Boston Logan Intl

8h 47m1 stop San Francisco

9:00 am - 6:01 pmBOS Boston Logan Intl-ONT Ontario

12h 01m1 stop San Francisco

$361United Airlines

Tue, Oct 20 - Tue, Nov 10

7:00 am - 7:14 pmONT Ontario-BOS Boston Logan Intl

9h 14m1 stop Chicago O'Hare Intl

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

10h 28m1 stop San Francisco

$361United Airlines

Wed, Nov 4 - Sat, Nov 7

Cheap last minute flights

Enter your travel dates to find the best prices.

1:04 pm - 11:53 pmONT Ontario-BOS Boston Logan Intl

7h 49m1 stop Salt Lake City

5:30 am - 11:06 amBOS Boston Logan Intl-ONT Ontario

8h 36m1 stop Atlanta Hartsfield-Jackson

$431Delta

Sat, Sep 19 - Tue, Oct 20

6:00 am - 7:45 pmONT Ontario-BOS Boston Logan Intl

10h 45m1 stop Seattle/Tacoma Intl

7:55 am - 5:19 pmBOS Boston Logan Intl-ONT Ontario

12h 24m1 stop Seattle/Tacoma Intl

$456Delta

Wed, Sep 16 - Wed, Sep 30

7:00 am - 5:36 pmONT Ontario-BOS Boston Logan Intl

7h 36m1 stop Chicago O'Hare Intl

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

10h 37m1 stop San Francisco

$456United Airlines

Wed, Sep 16 - Tue, Sep 29

1:18 pm - 11:54 pmONT Ontario-BOS Boston Logan Intl

7h 36m1 stop Denver Intl

2:15 pm - 10:49 pmBOS Boston Logan Intl-ONT Ontario

11h 34m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$461United Airlines

Wed, Sep 16 - Tue, Sep 29

10:25 am - 11:28 pmONT Ontario-BOS Boston Logan Intl

10h 03m2 stops Dallas/Fort Worth New York John F Kennedy Intl

6:02 am - 11:47 amBOS Boston Logan Intl-ONT Ontario

8h 45m1 stop Dallas/Fort Worth

$472American Airlines

Wed, Sep 16 - Wed, Sep 30

8:45 am - 7:00 pmONT Ontario-BOS Boston Logan Intl

7h 15m1 stop Nashville Intl

5:15 am - 10:20 amBOS Boston Logan Intl-ONT Ontario

8h 05m1 stop Denver Intl

$476Southwest

Sat, Sep 19 - Sat, Oct 3

10:47 am - 6:09 amONT Ontario-BOS Boston Logan Intl

16h 22m1 stop Portland

5:42 pm - 9:51 amBOS Boston Logan Intl-ONT Ontario

19h 09m1 stop Portland

$486Alaska Airlines

Sat, Sep 19 - Fri, Sep 25

10:25 am - 11:28 pmONT Ontario-BOS Boston Logan Intl

10h 03m2 stops Dallas/Fort Worth New York John F Kennedy Intl

7:00 am - 12:06 pmBOS Boston Logan Intl-ONT Ontario

8h 06m1 stop Phoenix Sky Harbor Intl

$492American Airlines

Wed, Sep 16 - Wed, Sep 30

3:14 pm - 7:39 amONT Ontario-BOS Boston Logan Intl

13h 25m1 stop Seattle/Tacoma Intl

4:58 pm - 10:17 amBOS Boston Logan Intl-ONT Ontario

20h 19m1 stop Seattle/Tacoma Intl

$493Alaska Airlines

Sat, Sep 19 - Sat, Oct 3

11:55 pm - 9:55 amONT Ontario-BOS Boston Logan Intl

7h 00m1 stop Chicago Midway

5:25 am - 1:10 pmBOS Boston Logan Intl-ONT Ontario

10h 45m2 stops Baltimore/Washington Sacramento Intl

$502Southwest

Mon, Sep 21 - Tue, Sep 29

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Southwest flights from Ontario to Boston

Our best Southwest deals on Ontario to Boston flight tickets

Southwest

Oct 29

ONT2:50 pmOntario

7h 25m

1 stop

BOS1:15 amBoston Logan Intl

Nov 5

BOS5:00 amBoston Logan Intl

12h 05m

1 stop

ONT2:05 pmOntario

$292

Southwest

Oct 17

ONT12:45 pmOntario

7h 35m

1 stop

BOS11:20 pmBoston Logan Intl

Oct 24

BOS5:15 amBoston Logan Intl

8h 05m

1 stop

ONT10:20 amOntario

$320

Southwest

Oct 17

ONT9:40 amOntario

10h 40m

2 stops

BOS11:20 pmBoston Logan Intl

Oct 24

BOS5:15 amBoston Logan Intl

8h 05m

1 stop

ONT10:20 amOntario

$325

Delta flights from Ontario to Boston

Our best Delta deals on Ontario to Boston flight tickets

Delta

Dec 30

ONT10:29 pmOntario

9h 19m

1 stop

BOS10:48 amBoston Logan Intl

Jan 7

BOS5:45 amBoston Logan Intl

8h 42m

1 stop

ONT11:27 amOntario

$297

Delta

Nov 13

ONT1:15 pmOntario

7h 42m

1 stop

BOS11:57 pmBoston Logan Intl

Dec 2

BOS6:00 amBoston Logan Intl

9h 17m

1 stop

ONT12:17 pmOntario

$308

Delta

Oct 29

ONT1:35 pmOntario

7h 24m

1 stop

BOS11:59 pmBoston Logan Intl

Nov 1

BOS5:30 amBoston Logan Intl

8h 36m

1 stop

ONT11:06 amOntario

$342

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sat 10/17

6:02 am-11:59 pm

1 stop14h 57m

Boston Logan Intl

Wed 10/21

6:40 pm-10:17 am

1 stop18h 37m

$251

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 10/20

11:13 am-11:59 pm

1 stop9h 46m

Boston Logan Intl

Wed 10/28

9:03 am-6:00 pm

1 stop11h 57m

$251

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Fri 10/16

4:29 pm-5:45 am

1 stop10h 16m

Boston Logan Intl

Tue 10/20

5:17 am-1:30 pm

1 stop11h 13m

$285

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 10/29

2:50 pm-1:15 am

1 stop7h 25m

Boston Logan Intl

Thu 11/5

5:00 am-2:05 pm

1 stop12h 05m

$292

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 10/13

12:16 pm-1:20 am

1 stop10h 04m

Boston Logan Intl

Sat 10/17

7:55 am-5:12 pm

1 stop12h 17m

$297

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Thu 11/12

11:10 pm-11:03 am

1 stop8h 53m

Boston Logan Intl

Wed 12/2

7:50 am-5:15 pm

1 stop12h 25m

$297

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Wed 11/18

10:30 am-10:28 pm

1 stop8h 58m

Boston Logan Intl

Sun 11/22

7:00 am-1:19 pm

1 stop9h 19m

$319

Quickest round-trip

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Sat 10/17

12:45 pm-11:20 pm

1 stop7h 35m

Boston Logan Intl

Sat 10/24

5:15 am-10:20 am

1 stop8h 05m

$320

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Tue 10/20

11:10 am-10:57 pm

1 stop8h 47m

Boston Logan Intl

Tue 11/10

9:00 am-6:01 pm

1 stop12h 01m

$361

OntarioBoston

ONT Ontario - BOS Boston Logan Intl

ONTBOS

Ontario

Wed 11/4

7:00 am-7:14 pm

1 stop9h 14m

Boston Logan Intl

Sat 11/7

8:05 am-3:33 pm

1 stop10h 28m

$361

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 low for flights on this route.

Typical prices usually range from $356 to $487.
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 $357.

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 $414. 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 $509.

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 $411. 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 $474 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 $417 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 September 2026, prices for Ontario to Boston flights are approximately 2% 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	$126
Fastest flight time	6h 50m
Direct flights	None

The best one-way flight to Boston from Ontario in the past 72 hours is $126. The best round-trip flight deal from Ontario to Boston found on momondo in the last 72 hours is $251.

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 September 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 (15%), 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 8,567 reviews	Search Delta flights
United Airlines	PriceFrom $238	Free Cancellation	Rating 7.4 10,209 reviews	Search United Airlines flights
JetBlue	PriceFrom $264	Free Cancellation	Rating 7.1 3,037 reviews	Search JetBlue flights
Southwest	PriceFrom $294	Free Cancellation	Rating 8.0 4,187 reviews	Search Southwest flights
American Airlines	PriceFrom $296	Free Cancellation	Rating 7.1 12,055 reviews	Search American Airlines flights

Hampton Beach

Ogunquit

Old Orchard Beach

Salem

Laconia

Cambridge

Revere

Hampton

South Yarmouth

Plymouth

Kennebunkport

Middletown

South Portland

Gloucester

Everett

Warwick

Seekonk

Brockton

Nashua

Burlington

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 $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 10/28. 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

Delta flights from Ontario to Boston

Our best Delta 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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