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

Phoenix (PHX) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Ontario?

JetBlue, American Airlines and Delta 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.

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

Denver (DEN) has the shortest average layover time for this route: 0h 53m.

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

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 7h 50m.

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

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

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

Flights via Denver (DEN) offer the lowest average round-trip price of $355.

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 June 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.

$125 Cheap Flights from Boston to Ontario in 2026

Q: 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 $401 to $632. The lowest price recently found on this route was $380.

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Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:59 pm - 11:04 am

BOS

ONT

18h 05m

1 stop

7:12 am - 6:09 am

ONT

BOS

19h 57m

1 stop

$380Alaska Airlines

Tue, Sep 1 - Tue, Sep 8

5:30 am - 12:15 pm

BOS

ONT

9h 45m

1 stop

1:20 pm - 12:50 am

ONT

BOS

8h 30m

1 stop

$381Southwest

Sat, Jul 4 - Tue, Jul 7

6:05 am - 12:16 pm

BOS

ONT

9h 11m

1 stop

5:05 pm - 6:30 am

ONT

BOS

10h 25m

1 stop

$383Delta

Tue, Aug 11 - Sat, Aug 15

3:50 pm - 10:35 pm

BOS

ONT

9h 45m

2 stops

11:55 pm - 12:15 pm

ONT

BOS

9h 20m

1 stop

$384Southwest

Thu, Oct 22 - Sun, Oct 25

4:30 pm - 10:35 pm

BOS

ONT

9h 05m

1 stop

11:50 pm - 11:16 am

ONT

BOS

8h 26m

1 stop

$385JetBlue

Wed, Aug 5 - Wed, Aug 12

8:45 am - 5:05 pm

BOS

ONT

11h 20m

2 stops

1:20 pm - 12:50 am

ONT

BOS

8h 30m

1 stop

$386Southwest

Sat, Jul 4 - Tue, Jul 7

2:10 pm - 6:55 pm

BOS

ONT

7h 45m

1 stop

7:45 am - 9:20 pm

ONT

BOS

10h 35m

2 stops

$387Southwest

Tue, Aug 4 - Tue, Aug 11

6:05 am - 12:16 pm

BOS

ONT

9h 11m

1 stop

5:05 pm - 6:30 am

ONT

BOS

10h 25m

1 stop

$388Delta

Sat, Aug 15 - Sat, Aug 29

6:00 am - 11:45 am

BOS

ONT

8h 45m

1 stop

12:35 pm - 11:59 pm

ONT

BOS

8h 24m

1 stop

$389American Airlines

Wed, Jul 8 - Wed, Jul 15

4:55 pm - 11:42 pm

BOS

ONT

9h 47m

1 stop

5:52 pm - 7:28 am

ONT

BOS

10h 36m

1 stop

$390Alaska Airlines

Thu, Oct 29 - Mon, Nov 2

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United Airlines flights from Boston to Ontario

Our best United Airlines deals on Boston to Ontario flight tickets

United Airlines

Jul 4

BOS6:00 amBoston Logan Intl

9h 12m

1 stop

ONT12:12 pmOntario

Jul 7

ONT4:20 pmOntario

10h 38m

2 stops

BOS5:58 amBoston Logan Intl

$386

United Airlines

Aug 14

BOS5:01 pmBoston Logan Intl

8h 34m

1 stop

ONT10:35 pmOntario

Aug 17

ONT7:13 pmOntario

10h 01m

1 stop

BOS8:14 amBoston Logan Intl

$402

United Airlines

Jul 16

BOS6:00 amBoston Logan Intl

9h 12m

1 stop

ONT12:12 pmOntario

Jul 20

ONT1:50 pmOntario

8h 21m

1 stop

BOS1:11 amBoston Logan Intl

$407

Southwest flights from Boston to Ontario

Our best Southwest deals on Boston to Ontario flight tickets

Southwest

Jul 4

BOS5:30 amBoston Logan Intl

9h 45m

1 stop

ONT12:15 pmOntario

Jul 7

ONT1:20 pmOntario

8h 30m

1 stop

BOS12:50 amBoston Logan Intl

$381

Southwest

Oct 22

BOS3:50 pmBoston Logan Intl

9h 45m

2 stops

ONT10:35 pmOntario

Oct 25

ONT11:55 pmOntario

9h 20m

1 stop

BOS12:15 pmBoston Logan Intl

$384

Southwest

Jul 4

BOS8:45 amBoston Logan Intl

11h 20m

2 stops

ONT5:05 pmOntario

Jul 7

ONT1:20 pmOntario

8h 30m

1 stop

BOS12:50 amBoston Logan Intl

$386

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 9/1

7:59 pm-11:04 am

1 stop18h 05m

Ontario

Tue 9/8

7:12 am-6:09 am

1 stop19h 57m

$380

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 7/4

5:30 am-12:15 pm

1 stop9h 45m

Ontario

Tue 7/7

1:20 pm-12:50 am

1 stop8h 30m

$381

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 8/11

6:05 am-12:16 pm

1 stop9h 11m

Ontario

Sat 8/15

5:05 pm-6:30 am

1 stop10h 25m

$383

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 10/22

3:50 pm-10:35 pm

2 stops9h 45m

Ontario

Sun 10/25

11:55 pm-12:15 pm

1 stop9h 20m

$384

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 8/5

4:30 pm-10:35 pm

1 stop9h 05m

Ontario

Wed 8/12

11:50 pm-11:16 am

1 stop8h 26m

$385

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 7/4

8:45 am-5:05 pm

2 stops11h 20m

Ontario

Tue 7/7

1:20 pm-12:50 am

1 stop8h 30m

$386

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 8/4

2:10 pm-6:55 pm

1 stop7h 45m

Ontario

Tue 8/11

7:45 am-9:20 pm

2 stops10h 35m

$387

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 8/15

6:05 am-12:16 pm

1 stop9h 11m

Ontario

Sat 8/29

5:05 pm-6:30 am

1 stop10h 25m

$388

Quickest round-trip

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 7/8

6:00 am-11:45 am

1 stop8h 45m

Ontario

Wed 7/15

12:35 pm-11:59 pm

1 stop8h 24m

$389

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 10/29

4:55 pm-11:42 pm

1 stop9h 47m

Ontario

Mon 11/2

5:52 pm-7:28 am

1 stop10h 36m

$390

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

Layovers

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

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 $486 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 $304 on momondo.

How have Boston to Ontario flight prices changed over time?

As of June 2026, prices for Boston to Ontario flights are approximately 4% 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	7h 59m
Direct flights	None

The fastest flight from Boston to Ontario takes 7h 59m

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 7h 59m.
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 June 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 40% 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 8,424 reviews	Search Delta flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 9,878 reviews	Search United Airlines flights
American Airlines	PriceFrom $259	Free Cancellation	Rating 7.1 11,746 reviews	Search American Airlines flights
Southwest	PriceFrom $305	Free Cancellation	Rating 7.9 4,242 reviews	Search Southwest flights
JetBlue	PriceFrom $319	Free Cancellation	Rating 7.1 3,001 reviews	Search JetBlue 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.

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Cheap flights from Boston to Los Angeles from $125

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 9/2. 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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United Airlines flights from Boston to Ontario

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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?

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

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

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

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

When to book flights from Boston to Ontario

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

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

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