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

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 3h 55m.

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

Portland (PDX) has the shortest average layover time for this route: 1h 13m.

What airlines fly to Billings?

Delta, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Billings from Ontario according to our data. Delta is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Billings. Keep in mind that there are 3 different airlines that fly to Billings on a routine basis, so you have a few additional options to choose from.

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

Flights via Portland (PDX) offer the lowest average round-trip price of $269.

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

Denver (DEN) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

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

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

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

Prices for flights from Ontario Airport to Billings Logan Intl Airport are refreshed on a daily basis.

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

As of June 2026, there are 2 operators available to choose from for flights from Ontario Airport to Billings Logan Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Billings Logan Intl Airport.

What documentation or ID do you need to fly to Billings Logan Intl Airport?

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

$156 Cheap Flights from Ontario to Billings in 2026

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Find the cheapest flights from Ontario to Billings

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:09 pm - 9:10 am

ONT

BIL

16h 01m

1 stop

10:00 am - 8:03 am

BIL

ONT

23h 03m

1 stop

$300Multiple Airlines

Thu, Aug 6 - Mon, Aug 10

5:10 pm - 10:50 pm

ONT

BIL

4h 40m

1 stop

5:20 am - 8:52 am

BIL

ONT

4h 32m

1 stop

$311Delta

Tue, Jul 28 - Tue, Aug 4

4:09 pm - 9:10 am

ONT

BIL

16h 01m

1 stop

10:00 am - 12:48 pm

BIL

ONT

51h 48m

2 stops

$339Multiple Airlines

Thu, Aug 6 - Mon, Aug 10

11:47 am - 9:10 am

ONT

BIL

20h 23m

1 stop

10:00 am - 10:04 am

BIL

ONT

25h 04m

2 stops

$344Multiple Airlines

Thu, Aug 6 - Mon, Aug 10

4:09 pm - 10:43 pm

ONT

BIL

5h 34m

1 stop

5:12 pm - 10:54 pm

BIL

ONT

6h 42m

1 stop

$359Alaska Airlines

Wed, Nov 4 - Sat, Nov 7

6:00 am - 11:07 am

ONT

BIL

4h 07m

1 stop

6:25 pm - 10:23 pm

BIL

ONT

4h 58m

1 stop

$361Delta

Tue, Sep 1 - Sun, Sep 6

10:37 am - 10:43 pm

ONT

BIL

11h 06m

2 stops

3:32 pm - 11:49 pm

BIL

ONT

9h 17m

1 stop

$377Alaska Airlines

Sat, Nov 14 - Tue, Nov 17

5:10 pm - 10:50 pm

ONT

BIL

4h 40m

1 stop

6:25 pm - 10:23 pm

BIL

ONT

4h 58m

1 stop

$384Delta

Tue, Jul 14 - Sat, Aug 8

3:14 pm - 11:29 pm

ONT

BIL

7h 15m

1 stop

6:14 am - 11:16 am

BIL

ONT

6h 02m

1 stop

$386Alaska Airlines

Thu, Sep 10 - Sun, Sep 13

4:09 pm - 10:43 pm

ONT

BIL

5h 34m

1 stop

3:32 pm - 10:54 pm

BIL

ONT

8h 22m

2 stops

$397Alaska Airlines

Wed, Nov 4 - Sat, Nov 7

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Delta flights from Ontario to Billings

Our best Delta deals on Ontario to Billings flight tickets

Delta

Jul 28

ONT5:10 pmOntario

4h 40m

1 stop

BIL10:50 pmBillings Logan Intl

Aug 4

BIL5:20 amBillings Logan Intl

4h 32m

1 stop

ONT8:52 amOntario

$311

Delta

Sep 1

ONT6:00 amOntario

4h 07m

1 stop

BIL11:07 amBillings Logan Intl

Sep 6

BIL6:25 pmBillings Logan Intl

4h 58m

1 stop

ONT10:23 pmOntario

$361

Delta

Jul 14

ONT5:10 pmOntario

4h 40m

1 stop

BIL10:50 pmBillings Logan Intl

Aug 8

BIL6:25 pmBillings Logan Intl

4h 58m

1 stop

ONT10:23 pmOntario

$384

Alaska Airlines flights from Ontario to Billings

Our best Alaska Airlines deals on Ontario to Billings flight tickets

Alaska Airlines

Nov 4

ONT4:09 pmOntario

5h 34m

1 stop

BIL10:43 pmBillings Logan Intl

Nov 7

BIL5:12 pmBillings Logan Intl

6h 42m

1 stop

ONT10:54 pmOntario

$359

Alaska Airlines

Nov 14

ONT10:37 amOntario

11h 06m

2 stops

BIL10:43 pmBillings Logan Intl

Nov 17

BIL3:32 pmBillings Logan Intl

9h 17m

1 stop

ONT11:49 pmOntario

$377

Alaska Airlines

Sep 10

ONT3:14 pmOntario

7h 15m

1 stop

BIL11:29 pmBillings Logan Intl

Sep 13

BIL6:14 amBillings Logan Intl

6h 02m

1 stop

ONT11:16 amOntario

$386

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Thu 8/6

4:09 pm-9:10 am

1 stop16h 01m

Billings Logan Intl

Mon 8/10

10:00 am-8:03 am

1 stop23h 03m

$300

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Tue 7/28

5:10 pm-10:50 pm

1 stop4h 40m

Billings Logan Intl

Tue 8/4

5:20 am-8:52 am

1 stop4h 32m

$311

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Thu 8/6

4:09 pm-9:10 am

1 stop16h 01m

Billings Logan Intl

Mon 8/10

10:00 am-12:48 pm

2 stops51h 48m

$339

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Thu 8/6

11:47 am-9:10 am

1 stop20h 23m

Billings Logan Intl

Mon 8/10

10:00 am-10:04 am

2 stops25h 04m

$344

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Wed 11/4

4:09 pm-10:43 pm

1 stop5h 34m

Billings Logan Intl

Sat 11/7

5:12 pm-10:54 pm

1 stop6h 42m

$359

Quickest round-trip

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Tue 9/1

6:00 am-11:07 am

1 stop4h 07m

Billings Logan Intl

Sun 9/6

6:25 pm-10:23 pm

1 stop4h 58m

$361

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Sat 11/14

10:37 am-10:43 pm

2 stops11h 06m

Billings Logan Intl

Tue 11/17

3:32 pm-11:49 pm

1 stop9h 17m

$377

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Tue 7/14

5:10 pm-10:50 pm

1 stop4h 40m

Billings Logan Intl

Sat 8/8

6:25 pm-10:23 pm

1 stop4h 58m

$384

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Thu 9/10

3:14 pm-11:29 pm

1 stop7h 15m

Billings Logan Intl

Sun 9/13

6:14 am-11:16 am

1 stop6h 02m

$386

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Wed 11/4

4:09 pm-10:43 pm

1 stop5h 34m

Billings Logan Intl

Sat 11/7

3:32 pm-10:54 pm

2 stops8h 22m

$397

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 Billings

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 cheapest month to fly to Billings?

The month of January is, on average, the cheapest month to fly to Billings from Ontario, with most prices found around $0. The month of November is another great option to travel to Billings, with average flight prices from Ontario averaging around $310.

When to book flights from Ontario to Billings

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

Estimated round-trip price

Cheap Ontario to Billings (ONT to BIL) flight deals and tips

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

Fastest flight time	3h 59m
Direct flights	None

The fastest flight from Ontario to Billings takes 3h 59m

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

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Frequently asked questions about flying from Ontario to Billings

How far is Ontario to Billings Logan Intl by plane?
The straight-line distance from Ontario to Billings Logan Intl is 941.7 mi. Typically, this will take 3h 59m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Billings Logan Intl Airport?
Prices for flights from Ontario Airport to Billings Logan Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Billings Logan Intl Airport?
As of June 2026, there are 2 operators available to choose from for flights from Ontario Airport to Billings Logan Intl Airport.
How old do you have to be to fly from Ontario Airport to Billings Logan Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Billings Logan Intl Airport.
What documentation or ID do you need to fly to Billings Logan Intl Airport?
The required travel and health documents for your Billings 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 Billings 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 Billings?
momondo data reveals that the most frequently booked airline on the route from Ontario to Billings is Delta, representing 75% of all bookings. The subsequent popular airline is Alaska Airlines at 25%.

Best airlines flying from Ontario to Billings

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $260	Free Cancellation	Rating 7.8 8,454 reviews		Search Delta flights
Alaska Airlines	PriceFrom $269	Free Cancellation	Rating 7.9 12,590 reviews		Search Alaska Airlines flights

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Billings. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Ontario to Billings with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ontario to Billings flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Billings, momondo offers a useful price alert feature which will track prices for flights to Billings from Ontario and alert you when they change.