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 41% 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.

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

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

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.

$109 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

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6:00 am - 12:12 pmBOS Boston Logan Intl-ONT Ontario

9h 12m1 stop San Francisco

7:13 pm - 8:14 amONT Ontario-BOS Boston Logan Intl

10h 01m1 stop San Francisco

$362United Airlines

Fri, Sep 18 - Sun, Sep 20

1:31 pm - 6:44 pmBOS Boston Logan Intl-ONT Ontario

8h 13m1 stop Chicago O'Hare Intl

6:53 pm - 8:23 amONT Ontario-BOS Boston Logan Intl

10h 30m1 stop San Francisco

$362United Airlines

Tue, Jan 19 - Tue, Jan 26

6:02 am - 1:25 pmBOS Boston Logan Intl-ONT Ontario

10h 23m1 stop Dallas/Fort Worth

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

10h 16m1 stop Phoenix Sky Harbor Intl

$367American Airlines

Thu, Oct 1 - Mon, Oct 5

7:45 am - 1:25 pmBOS Boston Logan Intl-ONT Ontario

8h 40m1 stop Dallas/Fort Worth

10:25 am - 11:34 pmONT Ontario-BOS Boston Logan Intl

10h 09m1 stop Dallas/Fort Worth

$367American Airlines

Sat, Sep 19 - Tue, Sep 22

6:05 am - 12:10 pmBOS Boston Logan Intl-ONT Ontario

9h 05m1 stop Salt Lake City

6:00 am - 4:42 pmONT Ontario-BOS Boston Logan Intl

7h 42m1 stop Salt Lake City

$367Delta

Wed, Dec 16 - Wed, Jan 6

12:20 pm - 7:41 pmBOS Boston Logan Intl-ONT Ontario

10h 21m1 stop Atlanta Hartsfield-Jackson

1:25 pm - 11:59 pmONT Ontario-BOS Boston Logan Intl

7h 34m1 stop Salt Lake City

$367Delta

Thu, Nov 26 - Fri, Dec 4

7:59 pm - 11:16 amBOS Boston Logan Intl-ONT Ontario

18h 17m1 stop Seattle/Tacoma Intl

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

13h 25m1 stop Seattle/Tacoma Intl

$367Alaska Airlines

Wed, Sep 9 - Fri, Sep 11

4:48 pm - 11:24 pmBOS Boston Logan Intl-ONT Ontario

9h 36m1 stop Seattle/Tacoma Intl

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

9h 46m1 stop Seattle/Tacoma Intl

$367Alaska Airlines

Thu, Sep 24 - Sat, Oct 24

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

7h 55m1 stop Denver Intl

8:35 am - 9:15 pmONT Ontario-BOS Boston Logan Intl

9h 40m2 stops Nashville Intl Baltimore/Washington

$372Southwest

Thu, Oct 22 - Tue, Oct 27

5:25 am - 12:55 pmBOS Boston Logan Intl-ONT Ontario

10h 30m2 stops Denver Intl Phoenix Sky Harbor Intl

2:00 pm - 11:55 pmONT Ontario-BOS Boston Logan Intl

6h 55m1 stop Denver Intl

$372Southwest

Wed, Oct 21 - Wed, Oct 28

Cheap last minute flights

Enter your travel dates to find the best prices.

7:45 am - 3:41 pmBOS Boston Logan Intl-ONT Ontario

10h 56m1 stop San Francisco

1:18 pm - 11:52 pmONT Ontario-BOS Boston Logan Intl

7h 34m1 stop Denver Intl

$456United Airlines

Sat, Aug 22 - Sat, Sep 19

7:45 am - 3:41 pmBOS Boston Logan Intl-ONT Ontario

10h 56m1 stop San Francisco

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

7h 36m1 stop Denver Intl

$456United Airlines

Sat, Aug 22 - Tue, Sep 1

6:45 am - 1:53 pmBOS Boston Logan Intl-ONT Ontario

10h 08m1 stop Dallas/Fort Worth

12:37 pm - 12:30 amONT Ontario-BOS Boston Logan Intl

8h 53m1 stop Dallas/Fort Worth

$467American Airlines

Sat, Aug 22 - Thu, Oct 1

11:35 am - 6:15 pmBOS Boston Logan Intl-ONT Ontario

9h 40m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

12:37 pm - 12:30 amONT Ontario-BOS Boston Logan Intl

8h 53m1 stop Dallas/Fort Worth

$472American Airlines

Sat, Aug 22 - Thu, Oct 1

5:30 am - 10:42 amBOS Boston Logan Intl-ONT Ontario

8h 12m1 stop Atlanta Hartsfield-Jackson

1:06 pm - 11:57 pmONT Ontario-BOS Boston Logan Intl

7h 51m1 stop Salt Lake City

$477Delta

Sun, Aug 23 - Sat, Aug 29

5:30 am - 10:42 amBOS Boston Logan Intl-ONT Ontario

8h 12m1 stop Atlanta Hartsfield-Jackson

12:00 pm - 11:41 pmONT Ontario-BOS Boston Logan Intl

8h 41m1 stop Atlanta Hartsfield-Jackson

$477Delta

Sun, Aug 23 - Mon, Aug 31

1:00 pm - 8:50 pmBOS Boston Logan Intl-ONT Ontario

10h 50m2 stops Chicago Midway Denver Intl

7:25 am - 9:25 pmONT Ontario-BOS Boston Logan Intl

11h 00m2 stops Nashville Intl Baltimore/Washington

$493Southwest

Sat, Aug 22 - Tue, Sep 1

7:12 am - 2:09 pmBOS Boston Logan Intl-ONT Ontario

9h 57m1 stop Seattle/Tacoma Intl

6:05 pm - 6:09 amONT Ontario-BOS Boston Logan Intl

9h 04m1 stop Portland

$531Alaska Airlines

Sat, Aug 22 - Mon, Aug 31

7:12 am - 2:09 pmBOS Boston Logan Intl-ONT Ontario

9h 57m1 stop Seattle/Tacoma Intl

6:05 pm - 6:09 amONT Ontario-BOS Boston Logan Intl

9h 04m1 stop Portland

$531Alaska Airlines

Sat, Aug 22 - Tue, Sep 1

1:00 pm - 8:10 pmBOS Boston Logan Intl-ONT Ontario

10h 10m1 stop Chicago Midway

8:30 pm - 9:50 amONT Ontario-BOS Boston Logan Intl

10h 20m2 stops Las Vegas Harry Reid Intl Baltimore/Washington

$571Southwest

Sat, Aug 22 - Sun, Aug 23

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Delta flights from Boston to Ontario

Our best Delta deals on Boston to Ontario flight tickets

Delta

Sep 4

BOS6:05 amBoston Logan Intl

9h 11m

1 stop

ONT12:16 pmOntario

Sep 13

ONT5:15 pmOntario

10h 15m

1 stop

BOS6:30 amBoston Logan Intl

$367

Delta

Sep 25

BOS6:45 pmBoston Logan Intl

8h 02m

1 stop

ONT11:47 pmOntario

Sep 27

ONT10:00 pmOntario

8h 42m

1 stop

BOS9:42 amBoston Logan Intl

$403

Delta

Sep 9

BOS9:10 amBoston Logan Intl

14h 14m

2 stops

ONT8:24 pmOntario

Sep 11

ONT12:17 pmOntario

8h 14m

1 stop

BOS11:31 pmBoston Logan Intl

$407

Alaska Airlines flights from Boston to Ontario

Our best Alaska Airlines deals on Boston to Ontario flight tickets

Alaska Airlines

Sep 16

BOS7:12 amBoston Logan Intl

10h 04m

1 stop

ONT2:16 pmOntario

Sep 20

ONT6:14 pmOntario

8h 55m

1 stop

BOS6:09 amBoston Logan Intl

$378

Alaska Airlines

Sep 10

BOS5:42 pmBoston Logan Intl

19h 09m

1 stop

ONT9:51 amOntario

Sep 16

ONT10:47 amOntario

16h 22m

1 stop

BOS6:09 amBoston Logan Intl

$390

Alaska Airlines

Jan 5

BOS4:56 pmBoston Logan Intl

20h 04m

1 stop

ONT10:00 amOntario

Jan 9

ONT11:36 amOntario

15h 04m

1 stop

BOS5:40 amBoston Logan Intl

$413

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Fri 9/18

6:00 am-12:12 pm

1 stop9h 12m

Ontario

Sun 9/20

7:13 pm-8:14 am

1 stop10h 01m

$362

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Tue 1/19

1:31 pm-6:44 pm

1 stop8h 13m

Ontario

Tue 1/26

6:53 pm-8:23 am

1 stop10h 30m

$362

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Thu 10/1

6:02 am-1:25 pm

1 stop10h 23m

Ontario

Mon 10/5

4:29 pm-5:45 am

1 stop10h 16m

$367

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Sat 9/19

7:45 am-1:25 pm

1 stop8h 40m

Ontario

Tue 9/22

10:25 am-11:34 pm

1 stop10h 09m

$367

Quickest round-trip

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 12/16

6:05 am-12:10 pm

1 stop9h 05m

Ontario

Wed 1/6

6:00 am-4:42 pm

1 stop7h 42m

$367

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Thu 11/26

12:20 pm-7:41 pm

1 stop10h 21m

Ontario

Fri 12/4

1:25 pm-11:59 pm

1 stop7h 34m

$367

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 9/9

7:59 pm-11:16 am

1 stop18h 17m

Ontario

Fri 9/11

3:14 pm-7:39 am

1 stop13h 25m

$367

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Thu 9/24

4:48 pm-11:24 pm

1 stop9h 36m

Ontario

Sat 10/24

11:13 am-11:59 pm

1 stop9h 46m

$367

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Thu 10/22

5:00 am-9:55 am

1 stop7h 55m

Ontario

Tue 10/27

8:35 am-9:15 pm

2 stops9h 40m

$372

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 10/21

5:25 am-12:55 pm

2 stops10h 30m

Ontario

Wed 10/28

2:00 pm-11:55 pm

1 stop6h 55m

$372

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 $373 to $772.
The lowest price recently found on this route was $362.

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 $495 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 31% more expensive 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

Best Price Found	$109
Fastest flight time	7h 45m
Direct flights	None

The best one-way flight to Ontario from Boston in the past 72 hours is $109. The best round-trip flight deal from Boston to Ontario found on momondo in the last 72 hours is $362.

The fastest flight from Boston to Ontario takes 7h 45m

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

Search flight deals

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 45m.
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 37% of all bookings. The subsequent popular airlines are Southwest at 26%, United Airlines at 15%, and Delta at 15%.

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 8,500 reviews	Search Delta flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 10,104 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 11,963 reviews	Search American Airlines flights
JetBlue	PriceFrom $298	Free Cancellation	Rating 7.1 3,038 reviews	Search JetBlue flights
Southwest	PriceFrom $317	Free Cancellation	Rating 8.0 4,217 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 $109

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 10/2. 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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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

Best Price Found

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

Airports servicing California

Fly your favorite airline to Los Angeles

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

Cabin classes currently available on flights to Los Angeles

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

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