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 44% 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.

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

Alaska Airlines, United Airlines, and American 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 September 2025, there are 3 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.

$130 Cheap Flights from Ontario to Billings in 2025/26

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Find the cheapest flights from Ontario to Billings

Round-trip

One-way

Last minute

Cheap round-trip flights

5:05 am - 1:18 pmONT-BIL

7h 13m1 stop

2:30 pm - 8:24 pmBIL-ONT

6h 54m1 stop

$255United Airlines

Find Deal

Wed, Oct 22 - Wed, Oct 22

7:43 pm - 3:04 pmONT-BIL

18h 21m1 stop

1:59 pm - 6:33 pmBIL-ONT

5h 34m1 stop

$295Alaska Airlines

Find Deal

Mon, Oct 20 - Wed, Oct 22

5:05 am - 1:18 pmONT-BIL

7h 13m1 stop

2:30 pm - 10:52 pmBIL-ONT

9h 22m2 stops

$306United Airlines

Find Deal

Wed, Oct 22 - Wed, Oct 22

6:00 am - 11:04 amONT-BIL

4h 04m1 stop

6:15 pm - 9:20 pmBIL-ONT

4h 05m1 stop

$313Delta

Find Deal

Sat, Oct 25 - Sat, Oct 25

5:05 am - 1:18 pmONT-BIL

7h 13m1 stop

2:30 pm - 8:24 pmBIL-ONT

6h 54m1 stop

$315United Airlines

Find Deal

Wed, Oct 1 - Wed, Oct 1

5:05 am - 1:18 pmONT-BIL

7h 13m1 stop

2:30 pm - 10:52 pmBIL-ONT

9h 22m2 stops

$320United Airlines

Find Deal

Wed, Oct 1 - Wed, Oct 1

4:40 pm - 10:35 pmONT-BIL

4h 55m1 stop

5:25 am - 8:58 amBIL-ONT

4h 33m1 stop

$321Delta

Find Deal

Tue, Sep 30 - Wed, Oct 1

6:00 am - 7:50 pmONT-BIL

12h 50m1 stop

12:11 pm - 11:38 amBIL-ONT

24h 27m2 stops

$335Multiple Airlines

Find Deal

Mon, Sep 29 - Wed, Oct 1

3:06 pm - 12:11 amONT-BIL

8h 05m1 stop

6:00 am - 10:44 amBIL-ONT

5h 44m1 stop

$345Alaska Airlines

Find Deal

Mon, Sep 29 - Tue, Sep 30

4:47 pm - 1:30 pmONT-BIL

19h 43m2 stops

6:00 am - 6:20 pmBIL-ONT

13h 20m2 stops

$968American Airlines

Find Deal

Mon, Nov 24 - Mon, Dec 1

American Airlines flights from Ontario to Billings

Our best American Airlines deals on Ontario to Billings flight tickets

American Airlines

Sep 18

ONT6:10 amOntario

15h 29m

2 stops

BIL10:39 pmBillings Logan Intl

Sep 21

BIL7:03 amBillings Logan Intl

10h 02m

2 stops

ONT4:05 pmOntario

$876

Find similar

American Airlines

Nov 24

ONT4:47 pmOntario

19h 43m

2 stops

BIL1:30 pmBillings Logan Intl

Dec 1

BIL6:00 amBillings Logan Intl

13h 20m

2 stops

ONT6:20 pmOntario

$968

Find similar

United Airlines flights from Ontario to Billings

Our best United Airlines deals on Ontario to Billings flight tickets

United Airlines

Oct 22

ONT5:05 amOntario

7h 13m

1 stop

BIL1:18 pmBillings Logan Intl

Oct 22

BIL2:30 pmBillings Logan Intl

6h 54m

1 stop

ONT8:24 pmOntario

$255

Find similar

United Airlines

Oct 22

ONT5:05 amOntario

7h 13m

1 stop

BIL1:18 pmBillings Logan Intl

Oct 22

BIL2:30 pmBillings Logan Intl

9h 22m

2 stops

ONT10:52 pmOntario

$306

Find similar

United Airlines

Oct 1

ONT5:05 amOntario

7h 13m

1 stop

BIL1:18 pmBillings Logan Intl

Oct 1

BIL2:30 pmBillings Logan Intl

6h 54m

1 stop

ONT8:24 pmOntario

$315

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Wed 10/22

5:05 am-1:18 pm

1 stop7h 13m

Billings Logan Intl

Wed 10/22

2:30 pm-8:24 pm

1 stop6h 54m

$255

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Mon 10/20

7:43 pm-3:04 pm

1 stop18h 21m

Billings Logan Intl

Wed 10/22

1:59 pm-6:33 pm

1 stop5h 34m

$295

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Wed 10/22

5:05 am-1:18 pm

1 stop7h 13m

Billings Logan Intl

Wed 10/22

2:30 pm-10:52 pm

2 stops9h 22m

$306

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Sat 10/25

6:00 am-11:04 am

1 stop4h 04m

Billings Logan Intl

Sat 10/25

6:15 pm-9:20 pm

1 stop4h 05m

$313

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Wed 10/1

5:05 am-1:18 pm

1 stop7h 13m

Billings Logan Intl

Wed 10/1

2:30 pm-8:24 pm

1 stop6h 54m

$315

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Wed 10/1

5:05 am-1:18 pm

1 stop7h 13m

Billings Logan Intl

Wed 10/1

2:30 pm-10:52 pm

2 stops9h 22m

$320

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Tue 9/30

4:40 pm-10:35 pm

1 stop4h 55m

Billings Logan Intl

Wed 10/1

5:25 am-8:58 am

1 stop4h 33m

$321

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Mon 9/29

6:00 am-7:50 pm

1 stop12h 50m

Billings Logan Intl

Wed 10/1

12:11 pm-11:38 am

2 stops24h 27m

$335

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Mon 9/29

3:06 pm-12:11 am

1 stop8h 05m

Billings Logan Intl

Tue 9/30

6:00 am-10:44 am

1 stop5h 44m

$345

OntarioBillings

ONT - BIL

ONTBIL

Ontario

Mon 11/24

4:47 pm-1:30 pm

2 stops19h 43m

Billings Logan Intl

Mon 12/1

6:00 am-6:20 pm

2 stops13h 20m

$968

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

What is the cheapest day to depart on your flight to Billings?

Our data shows that Thursday is the least expensive day to fly to Billings. Tickets to fly out on this day can be as low as $114. Flights from Ontario to Billings on a Monday will generally be more expensive and average around $492. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Billings?

According to our data, the cheapest time of day to fly to Billings is in the morning. momondo users have found flights departing from Ontario to Billings in the morning for as low as $116. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Billings, so prices are often more expensive at around $396 per ticket.

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

Direct flights	None

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

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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 53m 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 September 2025, there are 3 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 63% of all bookings. The subsequent popular airlines are Alaska Airlines at 22% and United Airlines at 15%.

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 $245	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
United Airlines	PriceFrom $270	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $284	Free Cancellation	Rating 8.0 10,000 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.