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

Delta, Southwest, and United 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 40% 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 September 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.

$169 Cheap Flights from Boston to Ontario in 2026

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11:15 am - 4:23 pmBOS Boston Logan Intl-ONT Ontario

8h 08m1 stop Salt Lake City

1:15 pm - 11:57 pmONT Ontario-BOS Boston Logan Intl

7h 42m1 stop Salt Lake City

$337Delta

Sat, Nov 7 - Wed, Nov 11

6:05 am - 12:14 pmBOS Boston Logan Intl-ONT Ontario

9h 09m1 stop Salt Lake City

5:15 pm - 6:30 amONT Ontario-BOS Boston Logan Intl

10h 15m1 stop Salt Lake City

$337Delta

Wed, Sep 23 - Mon, Sep 28

6:30 am - 12:14 pmBOS Boston Logan Intl-ONT Ontario

8h 44m1 stop Phoenix Sky Harbor Intl

12:42 pm - 11:58 pmONT Ontario-BOS Boston Logan Intl

8h 16m1 stop Dallas/Fort Worth

$337American Airlines

Tue, Oct 27 - Tue, Nov 3

6:30 am - 12:14 pmBOS Boston Logan Intl-ONT Ontario

8h 44m1 stop Phoenix Sky Harbor Intl

7:00 am - 7:33 pmONT Ontario-BOS Boston Logan Intl

9h 33m1 stop Dallas/Fort Worth

$337American Airlines

Wed, Oct 28 - Tue, Nov 3

1:32 pm - 9:40 pmBOS Boston Logan Intl-ONT Ontario

11h 08m1 stop Houston George Bush Intcntl

6:00 am - 4:49 pmONT Ontario-BOS Boston Logan Intl

7h 49m1 stop San Francisco

$337United Airlines

Wed, Nov 4 - Mon, Nov 9

3:05 pm - 8:51 pmBOS Boston Logan Intl-ONT Ontario

8h 46m1 stop Denver Intl

6:00 am - 4:49 pmONT Ontario-BOS Boston Logan Intl

7h 49m1 stop San Francisco

$337United Airlines

Wed, Oct 28 - Mon, Nov 2

6:32 pm - 11:09 amBOS Boston Logan Intl-ONT Ontario

19h 37m1 stop Seattle/Tacoma Intl

4:00 pm - 8:02 amONT Ontario-BOS Boston Logan Intl

13h 02m1 stop Seattle/Tacoma Intl

$337Alaska Airlines

Mon, Dec 7 - Wed, Dec 9

6:28 pm - 10:38 amBOS Boston Logan Intl-ONT Ontario

19h 10m1 stop Seattle/Tacoma Intl

7:00 am - 5:40 amONT Ontario-BOS Boston Logan Intl

19h 40m1 stop Seattle/Tacoma Intl

$337Alaska Airlines

Thu, Feb 4 - Mon, Feb 8

5:40 am - 1:25 pmBOS Boston Logan Intl-ONT Ontario

10h 45m2 stops Baltimore/Washington Phoenix Sky Harbor Intl

5:50 am - 5:35 pmONT Ontario-BOS Boston Logan Intl

8h 45m1 stop Nashville Intl

$342Southwest

Wed, Jan 20 - Sat, Jan 23

12:50 pm - 8:50 pmBOS Boston Logan Intl-ONT Ontario

11h 00m2 stops Chicago Midway Dallas Love Field

2:45 pm - 1:10 amONT Ontario-BOS Boston Logan Intl

7h 25m1 stop Denver Intl

$342Southwest

Wed, Oct 28 - Mon, Nov 2

Cheap last minute flights

Enter your travel dates to find the best prices.

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

12h 24m1 stop Seattle/Tacoma Intl

7:05 am - 7:05 pmONT Ontario-BOS Boston Logan Intl

9h 00m1 stop Atlanta Hartsfield-Jackson

$413Delta

Wed, Sep 9 - Fri, Sep 11

5:30 am - 11:05 amBOS Boston Logan Intl-ONT Ontario

8h 35m1 stop Atlanta Hartsfield-Jackson

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

7h 49m1 stop Salt Lake City

$413Delta

Wed, Sep 9 - Fri, Sep 11

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

$468Alaska Airlines

Wed, Sep 9 - Fri, Sep 11

6:45 am - 11:43 amBOS Boston Logan Intl-ONT Ontario

7h 58m1 stop Dallas/Fort Worth

1:04 pm - 11:30 pmONT Ontario-BOS Boston Logan Intl

7h 26m1 stop Phoenix Sky Harbor Intl

$469American Airlines

Tue, Sep 8 - Tue, Sep 15

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

8h 40m1 stop Dallas/Fort Worth

10:25 am - 10:29 pmONT Ontario-BOS Boston Logan Intl

9h 04m1 stop Dallas/Fort Worth

$477American Airlines

Fri, Sep 11 - Sat, Oct 3

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

19h 09m1 stop Portland

7:12 am - 6:09 amONT Ontario-BOS Boston Logan Intl

19h 57m1 stop Portland

$492Alaska Airlines

Tue, Sep 8 - Tue, Sep 15

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

$495United Airlines

Fri, Sep 11 - Sun, Sep 13

2:00 pm - 8:01 pmBOS Boston Logan Intl-ONT Ontario

9h 01m1 stop San Francisco

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

10h 01m1 stop San Francisco

$495United Airlines

Thu, Sep 10 - Sun, Sep 13

12:40 pm - 8:45 pmBOS Boston Logan Intl-ONT Ontario

11h 05m2 stops Chicago Midway Phoenix Sky Harbor Intl

11:10 am - 9:35 pmONT Ontario-BOS Boston Logan Intl

7h 25m1 stop Nashville Intl

$518Southwest

Fri, Sep 11 - Sat, Oct 3

2:10 pm - 7:00 pmBOS Boston Logan Intl-ONT Ontario

7h 50m1 stop Nashville Intl

7:25 am - 10:15 pmONT Ontario-BOS Boston Logan Intl

11h 50m1 stop Nashville Intl

$550Southwest

Wed, Sep 9 - Wed, Sep 16

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American Airlines flights from Boston to Ontario

Our best American Airlines deals on Boston to Ontario flight tickets

American Airlines

Oct 15

BOS5:17 amBoston Logan Intl

9h 36m

1 stop

ONT11:53 amOntario

Oct 19

ONT11:59 pmOntario

10h 38m

1 stop

BOS1:37 pmBoston Logan Intl

$353

American Airlines

Oct 29

BOS10:12 amBoston Logan Intl

8h 04m

1 stop

ONT3:16 pmOntario

Nov 4

ONT6:30 amOntario

7h 15m

1 stop

BOS4:45 pmBoston Logan Intl

$368

American Airlines

Sep 12

BOS6:02 amBoston Logan Intl

8h 45m

1 stop

ONT11:47 amOntario

Sep 29

ONT12:37 pmOntario

7h 57m

1 stop

BOS11:34 pmBoston Logan Intl

$375

Alaska Airlines flights from Boston to Ontario

Our best Alaska Airlines deals on Boston to Ontario flight tickets

Alaska Airlines

Oct 22

BOS6:40 pmBoston Logan Intl

18h 37m

1 stop

ONT10:17 amOntario

Oct 25

ONT6:02 amOntario

14h 57m

1 stop

BOS11:59 pmBoston Logan Intl

$367

Alaska Airlines

Oct 22

BOS6:40 pmBoston Logan Intl

18h 37m

1 stop

ONT10:17 amOntario

Oct 26

ONT6:02 amOntario

14h 57m

1 stop

BOS11:59 pmBoston Logan Intl

$370

Alaska Airlines

Nov 14

BOS7:13 amBoston Logan Intl

11h 00m

1 stop

ONT3:13 pmOntario

Nov 17

ONT12:02 pmOntario

8h 56m

1 stop

BOS11:58 pmBoston Logan Intl

$375

Fly from

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Route

Depart

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Price

Cheapest round-trip

Quickest round-trip

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Sat 11/7

11:15 am-4:23 pm

1 stop8h 08m

Ontario

Wed 11/11

1:15 pm-11:57 pm

1 stop7h 42m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 9/23

6:05 am-12:14 pm

1 stop9h 09m

Ontario

Mon 9/28

5:15 pm-6:30 am

1 stop10h 15m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Tue 10/27

6:30 am-12:14 pm

1 stop8h 44m

Ontario

Tue 11/3

12:42 pm-11:58 pm

1 stop8h 16m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 10/28

6:30 am-12:14 pm

1 stop8h 44m

Ontario

Tue 11/3

7:00 am-7:33 pm

1 stop9h 33m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 11/4

1:32 pm-9:40 pm

1 stop11h 08m

Ontario

Mon 11/9

6:00 am-4:49 pm

1 stop7h 49m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 10/28

3:05 pm-8:51 pm

1 stop8h 46m

Ontario

Mon 11/2

6:00 am-4:49 pm

1 stop7h 49m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Mon 12/7

6:32 pm-11:09 am

1 stop19h 37m

Ontario

Wed 12/9

4:00 pm-8:02 am

1 stop13h 02m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Thu 2/4

6:28 pm-10:38 am

1 stop19h 10m

Ontario

Mon 2/8

7:00 am-5:40 am

1 stop19h 40m

$337

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 1/20

5:40 am-1:25 pm

2 stops10h 45m

Ontario

Sat 1/23

5:50 am-5:35 pm

1 stop8h 45m

$342

BostonOntario

BOS Boston Logan Intl - ONT Ontario

BOSONT

Boston Logan Intl

Wed 10/28

12:50 pm-8:50 pm

2 stops11h 00m

Ontario

Mon 11/2

2:45 pm-1:10 am

1 stop7h 25m

$342

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 $356 to $489.
The lowest price recently found on this route was $337.

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 $501 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 September 2026, prices for Boston to Ontario flights are approximately 22% 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

Best Price Found	$169
Fastest flight time	8h 13m
Direct flights	None

The best one-way flight to Ontario from Boston in the past 72 hours is $169. The best round-trip flight deal from Boston to Ontario found on momondo in the last 72 hours is $337.

The fastest flight from Boston to Ontario takes 8h 13m

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 8h 13m.
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 September 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 36% of all bookings. The subsequent popular airlines are Southwest at 27%, Delta at 16%, and United Airlines 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 8,561 reviews	Search Delta flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 10,173 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 12,041 reviews	Search American Airlines flights
JetBlue	PriceFrom $298	Free Cancellation	Rating 7.1 3,046 reviews	Search JetBlue flights
Southwest	PriceFrom $317	Free Cancellation	Rating 8.0 4,200 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 $169

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 1/27. 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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American Airlines flights from Boston to Ontario

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

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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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