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

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

What airlines fly to Ontario?

JetBlue, American Airlines and United Airlines are the top three most popular airlines that fly to Ontario from Boston 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 Ontario. Keep in mind that there are 9 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Boston Logan Intl Airport to Ontario Airport are updated daily.

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

There are 5 operators available for flights from Boston Logan Intl Airport to Ontario Airport as of August 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario 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 Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$114 Cheap Flights from Boston to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:05 am - 12:21 pm-

9h 16m

1:24 pm - 11:59 pm-

7h 35m

$347Delta

Wed, Oct 21 - Mon, Oct 26

6:05 am - 12:14 pm-

9h 09m

12:17 pm - 1:17 am-

10h 00m

$347Delta

Wed, Sep 30 - Sat, Oct 3

7:30 am - 1:31 pm-

9h 01m

12:33 pm - 11:37 pm-

8h 04m

$347American Airlines

Tue, Aug 25 - Sat, Aug 29

6:00 am - 1:25 pm-

10h 25m

1:04 pm - 11:30 pm-

7h 26m

$347American Airlines

Wed, Sep 16 - Wed, Sep 23

9:25 am - 2:25 pm-

8h 00m

11:55 pm - 12:25 pm-

9h 30m

$347Southwest

Tue, Sep 1 - Fri, Sep 11

5:01 pm - 10:35 pm-

8h 34m

1:18 pm - 11:54 pm-

7h 36m

$347United Airlines

Sat, Sep 5 - Fri, Sep 11

9:33 am - 5:18 pm-

10h 45m

7:12 am - 6:09 am-

19h 57m

$347Alaska Airlines

Sat, Sep 12 - Sat, Sep 19

7:10 am - 3:15 pm-

11h 05m

6:00 am - 11:59 pm-

14h 59m

$347Alaska Airlines

Thu, Nov 12 - Mon, Nov 16

5:25 am - 12:40 pm-

10h 15m

8:10 am - 8:15 pm-

9h 05m

$352Southwest

Tue, Sep 1 - Fri, Sep 11

12:27 pm - 8:53 pm-

11h 26m

7:00 am - 5:36 pm-

7h 36m

$352United Airlines

Sat, Sep 5 - Fri, Sep 11

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Delta flights from Boston to Ontario

Our best Delta deals on Boston to Ontario flight tickets

Delta

Jan 4

BOS6:25 pmBoston Logan Intl

8h 23m

1 stop

ONT11:48 pmOntario

Jan 6

ONT6:00 amOntario

7h 42m

1 stop

BOS4:42 pmBoston Logan Intl

$357

Delta

Aug 29

BOS5:30 amBoston Logan Intl

8h 12m

1 stop

ONT10:42 amOntario

Sep 6

ONT12:00 pmOntario

9h 38m

1 stop

BOS12:38 amBoston Logan Intl

$358

Delta

Aug 30

BOS6:05 amBoston Logan Intl

9h 11m

1 stop

ONT12:16 pmOntario

Sep 5

ONT7:05 amOntario

9h 30m

1 stop

BOS7:35 pmBoston Logan Intl

$362

Alaska Airlines flights from Boston to Ontario

Our best Alaska Airlines deals on Boston to Ontario flight tickets

Alaska Airlines

Aug 24

BOS7:59 pmBoston Logan Intl

18h 05m

1 stop

ONT11:04 amOntario

Aug 31

ONT7:12 amOntario

19h 57m

1 stop

BOS6:09 amBoston Logan Intl

$347

Alaska Airlines

Aug 24

BOS7:59 pmBoston Logan Intl

18h 05m

1 stop

ONT11:04 amOntario

Sep 1

ONT7:12 amOntario

19h 57m

1 stop

BOS6:09 amBoston Logan Intl

$378

Alaska Airlines

Sep 5

BOS5:42 pmBoston Logan Intl

19h 09m

1 stop

ONT9:51 amOntario

Sep 11

ONT10:47 amOntario

16h 22m

1 stop

BOS6:09 amBoston Logan Intl

$380

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 10/21

6:05 am-12:21 pm

1 stop9h 16m

Ontario

Mon 10/26

1:24 pm-11:59 pm

1 stop7h 35m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 9/30

6:05 am-12:14 pm

1 stop9h 09m

Ontario

Sat 10/3

12:17 pm-1:17 am

1 stop10h 00m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 8/25

7:30 am-1:31 pm

1 stop9h 01m

Ontario

Sat 8/29

12:33 pm-11:37 pm

1 stop8h 04m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 9/16

6:00 am-1:25 pm

1 stop10h 25m

Ontario

Wed 9/23

1:04 pm-11:30 pm

1 stop7h 26m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 9/1

9:25 am-2:25 pm

1 stop8h 00m

Ontario

Fri 9/11

11:55 pm-12:25 pm

1 stop9h 30m

$347

Quickest round-trip

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 9/5

5:01 pm-10:35 pm

1 stop8h 34m

Ontario

Fri 9/11

1:18 pm-11:54 pm

1 stop7h 36m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 9/12

9:33 am-5:18 pm

1 stop10h 45m

Ontario

Sat 9/19

7:12 am-6:09 am

1 stop19h 57m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 11/12

7:10 am-3:15 pm

1 stop11h 05m

Ontario

Mon 11/16

6:00 am-11:59 pm

1 stop14h 59m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 9/1

5:25 am-12:40 pm

2 stops10h 15m

Ontario

Fri 9/11

8:10 am-8:15 pm

1 stop9h 05m

$352

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 9/5

12:27 pm-8:53 pm

2 stops11h 26m

Ontario

Fri 9/11

7:00 am-5:36 pm

1 stop7h 36m

$352

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 Boston to Ontario

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

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

Prices are currently low for flights on this route.

Typical prices usually range from $358 to $756.
The lowest price recently found on this route was $347.

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from Boston to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $317. If you aren’t able to travel during the month of February, then book flights to Ontario from Boston during January instead. Flights to Ontario in January, while not as cheap as those in February, still average around $366.

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

You are more likely to see cheaper flights to Ontario from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $491 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Boston for as low as $326 on momondo.

How have Boston to Ontario flight prices changed over time?

As of August 2026, prices for Boston to Ontario flights are approximately 17% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Ontario

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

Estimated round-trip price

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

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

Fastest flight time	8h 08m
Direct flights	None

The fastest flight from Boston to Ontario takes 8h 08m

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

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Frequently asked questions about flying from Boston to Ontario

How far is Boston Logan Intl to Ontario by plane?
The distance between Boston Logan Intl and Ontario is about 2558.5 mi. A reasonable flight in good conditions will take 8h 08m.
When did momondo last update prices for flights from Boston Logan Intl Airport to Ontario Airport?
Prices for flights from Boston Logan Intl Airport to Ontario Airport are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Ontario Airport?
There are 5 operators available for flights from Boston Logan Intl Airport to Ontario Airport as of August 2026.
How old do you have to be to fly from Boston Logan Intl Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario 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 Ontario 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 Boston to Ontario?
momondo data reveals that the most frequently booked airline on the route from Boston to Ontario is American Airlines, representing 38% of all bookings. The subsequent popular airlines are Southwest at 26%, United Airlines at 15%, and Delta at 14%.

Best airlines flying from Boston to Ontario

Compare and see reviews for airlines that fly from Boston to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $233	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 10,059 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 11,850 reviews	Search American Airlines flights
JetBlue	PriceFrom $298	Free Cancellation	Rating 7.2 3,025 reviews	Search JetBlue flights
Southwest	PriceFrom $307	Free Cancellation	Rating 8.0 4,222 reviews	Search Southwest flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Boston.

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

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

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

momondo provides multiple filters to help you find the best flight to Ontario from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Boston 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 Ontario trip

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Cheap flights from Boston to Los Angeles from $114

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Los Angeles departing on 9/30. 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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Delta flights from Boston to Ontario

Our best Delta deals on Boston to Ontario flight tickets

Alaska Airlines flights from Boston to Ontario

Our best Alaska Airlines deals on Boston to Ontario flight tickets

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How to get the cheapest flight ticket from Boston to Ontario

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

What is the cheapest month to fly to Ontario?

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

How have Boston to Ontario flight prices changed over time?

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

What airlines fly to Ontario?

When to book flights from Boston to Ontario

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Boston to Ontario

Best airlines flying from Boston to Ontario

Compare and see reviews for airlines that fly from Boston to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario 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

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Fly your favorite airline to Los Angeles

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

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