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 47% 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 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 November 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.

$129 Cheap Flights from Ontario to Billings in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

2:00 pm - 4:08 pmONT Ontario-BIL Billings Logan Intl

25h 08m1 stop Las Vegas Harry Reid Intl

5:15 pm - 11:51 amBIL Billings Logan Intl-ONT Ontario

19h 36m1 stop Las Vegas Harry Reid Intl

$220Multiple Airlines

Tue, Dec 1 - Mon, Dec 14

2:00 pm - 4:08 pmONT Ontario-BIL Billings Logan Intl

25h 08m1 stop Las Vegas Harry Reid Intl

5:15 pm - 11:23 pmBIL Billings Logan Intl-ONT Ontario

31h 08m2 stops Las Vegas Harry Reid Intl San Francisco

$276Multiple Airlines

Tue, Dec 1 - Mon, Dec 14

2:01 pm - 12:07 pmONT Ontario-BIL Billings Logan Intl

21h 06m1 stop Las Vegas Harry Reid Intl

10:57 am - 12:39 pmBIL Billings Logan Intl-ONT Ontario

26h 42m1 stop Las Vegas Harry Reid Intl

$295Multiple Airlines

Thu, Nov 26 - Mon, Nov 30

5:00 am - 1:30 pmONT Ontario-BIL Billings Logan Intl

7h 30m1 stop Denver Intl

4:13 pm - 9:00 pmBIL Billings Logan Intl-ONT Ontario

5h 47m1 stop Denver Intl

$371United Airlines

Tue, Jan 12 - Thu, Jan 14

4:29 pm - 11:47 pmONT Ontario-BIL Billings Logan Intl

6h 18m1 stop Seattle/Tacoma Intl

3:39 pm - 8:03 pmBIL Billings Logan Intl-ONT Ontario

5h 24m1 stop Portland

$371Alaska Airlines

Mon, Jan 25 - Mon, Feb 1

5:07 pm - 10:38 pmONT Ontario-BIL Billings Logan Intl

4h 31m1 stop Salt Lake City

6:27 pm - 11:57 pmBIL Billings Logan Intl-ONT Ontario

6h 30m1 stop Salt Lake City

$381Delta

Tue, Jan 26 - Mon, Feb 1

5:07 pm - 10:38 pmONT Ontario-BIL Billings Logan Intl

4h 31m1 stop Salt Lake City

6:27 pm - 11:57 pmBIL Billings Logan Intl-ONT Ontario

6h 30m1 stop Salt Lake City

$381Delta

Mon, Jan 25 - Tue, Feb 2

6:00 am - 12:33 pmONT Ontario-BIL Billings Logan Intl

5h 33m1 stop Salt Lake City

6:27 pm - 11:57 pmBIL Billings Logan Intl-ONT Ontario

6h 30m1 stop Salt Lake City

$381Delta

Wed, Jan 27 - Tue, Feb 2

5:00 am - 1:13 pmONT Ontario-BIL Billings Logan Intl

7h 13m1 stop Denver Intl

7:00 am - 3:27 pmBIL Billings Logan Intl-ONT Ontario

9h 27m2 stops Denver Intl San Francisco

$382United Airlines

Wed, Apr 21 - Wed, Apr 28

5:00 am - 1:24 pmONT Ontario-BIL Billings Logan Intl

7h 24m1 stop Denver Intl

7:00 am - 3:35 pmBIL Billings Logan Intl-ONT Ontario

9h 35m2 stops Denver Intl San Francisco

$424United Airlines

Sat, Dec 12 - Wed, Dec 16

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Delta flights from Ontario to Billings

Our best Delta deals on Ontario to Billings flight tickets

Delta

Jan 26

ONT5:07 pmOntario

4h 31m

1 stop

BIL10:38 pmBillings Logan Intl

Jan 27

BIL6:27 pmBillings Logan Intl

6h 30m

1 stop

ONT11:57 pmOntario

$381

Delta

Feb 13

ONT6:00 amOntario

5h 26m

1 stop

BIL12:26 pmBillings Logan Intl

Feb 21

BIL1:08 pmBillings Logan Intl

4h 27m

1 stop

ONT4:35 pmOntario

$469

Delta

Feb 12

ONT6:00 amOntario

5h 26m

1 stop

BIL12:26 pmBillings Logan Intl

Feb 19

BIL1:08 pmBillings Logan Intl

4h 27m

1 stop

ONT4:35 pmOntario

$471

United Airlines flights from Ontario to Billings

Our best United Airlines deals on Ontario to Billings flight tickets

United Airlines

Apr 21

ONT5:00 amOntario

7h 13m

1 stop

BIL1:13 pmBillings Logan Intl

Apr 28

BIL7:00 amBillings Logan Intl

9h 27m

2 stops

ONT3:27 pmOntario

$382

United Airlines

Dec 12

ONT5:00 amOntario

7h 24m

1 stop

BIL1:24 pmBillings Logan Intl

Dec 16

BIL7:00 amBillings Logan Intl

9h 35m

2 stops

ONT3:35 pmOntario

$424

United Airlines

Jan 12

ONT9:45 amOntario

10h 30m

2 stops

BIL9:15 pmBillings Logan Intl

Jan 14

BIL4:13 pmBillings Logan Intl

5h 47m

1 stop

ONT9:00 pmOntario

$436

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Tue 12/1

2:00 pm-4:08 pm

1 stop25h 08m

Billings Logan Intl

Mon 12/14

5:15 pm-11:51 am

1 stop19h 36m

$220

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Tue 12/1

2:00 pm-4:08 pm

1 stop25h 08m

Billings Logan Intl

Mon 12/14

5:15 pm-11:23 pm

2 stops31h 08m

$276

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Thu 11/26

2:01 pm-12:07 pm

1 stop21h 06m

Billings Logan Intl

Mon 11/30

10:57 am-12:39 pm

1 stop26h 42m

$295

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Tue 1/12

5:00 am-1:30 pm

1 stop7h 30m

Billings Logan Intl

Thu 1/14

4:13 pm-9:00 pm

1 stop5h 47m

$371

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Mon 1/25

4:29 pm-11:47 pm

1 stop6h 18m

Billings Logan Intl

Mon 2/1

3:39 pm-8:03 pm

1 stop5h 24m

$371

Quickest round-trip

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Tue 1/26

5:07 pm-10:38 pm

1 stop4h 31m

Billings Logan Intl

Mon 2/1

6:27 pm-11:57 pm

1 stop6h 30m

$381

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Mon 1/25

5:07 pm-10:38 pm

1 stop4h 31m

Billings Logan Intl

Tue 2/2

6:27 pm-11:57 pm

1 stop6h 30m

$381

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Wed 1/27

6:00 am-12:33 pm

1 stop5h 33m

Billings Logan Intl

Tue 2/2

6:27 pm-11:57 pm

1 stop6h 30m

$381

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Wed 4/21

5:00 am-1:13 pm

1 stop7h 13m

Billings Logan Intl

Wed 4/28

7:00 am-3:27 pm

2 stops9h 27m

$382

OntarioBillings

ONT Ontario - BIL Billings Logan Intl

ONTBIL

Ontario

Sat 12/12

5:00 am-1:24 pm

1 stop7h 24m

Billings Logan Intl

Wed 12/16

7:00 am-3:35 pm

2 stops9h 35m

$424

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 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 February is another great option to travel to Billings, with average flight prices from Ontario averaging around $340.

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

Best Price Found	$129
Fastest flight time	4h 24m
Direct flights	None

The best one-way flight to Billings from Ontario in the past 72 hours is $129. The best round-trip flight deal from Ontario to Billings found on momondo in the last 72 hours is $220.

The fastest flight from Ontario to Billings takes 4h 24m

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

Search flight deals

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 4h 24m 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 November 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 70% of all bookings. The subsequent popular airline is United Airlines at 30%.

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 8,714 reviews		Search Delta flights
United Airlines	PriceFrom $279	Free Cancellation	Rating 7.3 10,485 reviews		Search United Airlines flights

Forsyth

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.