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Cheap flights from Ontario to Billings from $181

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Billings departing on 5/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Billings

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:34 pm - 9:10 am
ONT
-
BIL
16h 36m
1 stop
Multiple Airlines Logo
2:03 pm - 3:08 pm
BIL
-
ONT
26h 05m
2 stops
$282Multiple Airlines
jeu., juin 25 - mar., juin 30
Multiple Airlines Logo
3:34 pm - 9:10 am
ONT
-
BIL
16h 36m
1 stop
Multiple Airlines Logo
10:00 am - 3:08 pm
BIL
-
ONT
6h 08m
1 stop
$300Multiple Airlines
jeu., juin 25 - lun., juin 29
Delta Logo
4:57 pm - 10:52 pm
ONT
-
BIL
4h 55m
1 stop
Delta Logo
5:20 am - 8:50 am
BIL
-
ONT
4h 30m
1 stop
$311Delta
lun., juin 1 - lun., juin 8
Multiple Airlines Logo
11:58 am - 9:10 am
ONT
-
BIL
20h 12m
1 stop
Multiple Airlines Logo
10:00 am - 12:48 pm
BIL
-
ONT
27h 48m
2 stops
$322Multiple Airlines
jeu., juin 25 - lun., juin 29
Delta Logo
9:50 am - 5:39 pm
ONT
-
BIL
6h 49m
1 stop
Delta Logo
5:30 am - 8:53 am
BIL
-
ONT
4h 23m
1 stop
$336Delta
mer., mai 27 - mar., juin 2
Delta Logo
6:00 am - 11:07 am
ONT
-
BIL
4h 07m
1 stop
Delta Logo
6:34 pm - 10:05 pm
BIL
-
ONT
4h 31m
1 stop
$359Delta
mar., août 4 - sam., août 8
Delta Logo
5:10 pm - 10:50 pm
ONT
-
BIL
4h 40m
1 stop
Delta Logo
5:20 am - 8:47 am
BIL
-
ONT
4h 27m
1 stop
$361Delta
jeu., juil. 30 - dim., août 2
Alaska Airlines Logo
2:14 pm - 11:50 pm
ONT
-
BIL
8h 36m
1 stop
Alaska Airlines Logo
6:01 am - 1:19 pm
BIL
-
ONT
8h 18m
1 stop
$369Alaska Airlines
sam., oct. 24 - mer., oct. 28
Alaska Airlines Logo
7:00 am - 3:03 pm
ONT
-
BIL
7h 03m
1 stop
Alaska Airlines Logo
6:00 am - 11:14 am
BIL
-
ONT
6h 14m
1 stop
$409Alaska Airlines
mar., juil. 21 - ven., juil. 24
Alaska Airlines Logo
7:00 am - 2:54 pm
ONT
-
BIL
6h 54m
1 stop
Alaska Airlines Logo
6:00 am - 11:10 am
BIL
-
ONT
6h 10m
1 stop
$410Alaska Airlines
sam., mai 30 - sam., juin 6

Delta flights from Ontario to Billings

Our best Delta deals on Ontario to Billings flight tickets
Delta
Jun 1
ONT4:57 pmOntario
4h 55m
1 stop
BIL10:52 pmBillings Logan Intl
Jun 8
BIL5:20 amBillings Logan Intl
4h 30m
1 stop
ONT8:50 amOntario
$311
Delta
May 27
ONT9:50 amOntario
6h 49m
1 stop
BIL5:39 pmBillings Logan Intl
Jun 2
BIL5:30 amBillings Logan Intl
4h 23m
1 stop
ONT8:53 amOntario
$336
Delta
Aug 4
ONT6:00 amOntario
4h 07m
1 stop
BIL11:07 amBillings Logan Intl
Aug 8
BIL6:34 pmBillings Logan Intl
4h 31m
1 stop
ONT10:05 pmOntario
$359

Alaska Airlines flights from Ontario to Billings

Our best Alaska Airlines deals on Ontario to Billings flight tickets
Alaska Airlines
Oct 24
ONT2:14 pmOntario
8h 36m
1 stop
BIL11:50 pmBillings Logan Intl
Oct 28
BIL6:01 amBillings Logan Intl
8h 18m
1 stop
ONT1:19 pmOntario
$369
Alaska Airlines
Jul 21
ONT7:00 amOntario
7h 03m
1 stop
BIL3:03 pmBillings Logan Intl
Jul 24
BIL6:00 amBillings Logan Intl
6h 14m
1 stop
ONT11:14 amOntario
$409
Alaska Airlines
May 30
ONT7:00 amOntario
6h 54m
1 stop
BIL2:54 pmBillings Logan Intl
Jun 6
BIL6:00 amBillings Logan Intl
6h 10m
1 stop
ONT11:10 amOntario
$410

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Billings that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated mai 15, 2026.
Use the filters below to find and compare flights from Ontario to Billings that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioBillings

ONT - BIL

ONTBIL

Ontario

jeu. 6/25

3:34 pm-9:10 am

1 stop16h 36m

Billings Logan Intl

mar. 6/30

2:03 pm-3:08 pm

2 stops26h 05m

$282

OntarioBillings

ONT - BIL

ONTBIL

Ontario

jeu. 6/25

3:34 pm-9:10 am

1 stop16h 36m

Billings Logan Intl

lun. 6/29

10:00 am-3:08 pm

1 stop6h 08m

$300

OntarioBillings

ONT - BIL

ONTBIL

Ontario

lun. 6/1

4:57 pm-10:52 pm

1 stop4h 55m

Billings Logan Intl

lun. 6/8

5:20 am-8:50 am

1 stop4h 30m

$311

OntarioBillings

ONT - BIL

ONTBIL

Ontario

jeu. 6/25

11:58 am-9:10 am

1 stop20h 12m

Billings Logan Intl

lun. 6/29

10:00 am-12:48 pm

2 stops27h 48m

$322

OntarioBillings

ONT - BIL

ONTBIL

Ontario

mer. 5/27

9:50 am-5:39 pm

1 stop6h 49m

Billings Logan Intl

mar. 6/2

5:30 am-8:53 am

1 stop4h 23m

$336
Quickest round-trip

OntarioBillings

ONT - BIL

ONTBIL

Ontario

mar. 8/4

6:00 am-11:07 am

1 stop4h 07m

Billings Logan Intl

sam. 8/8

6:34 pm-10:05 pm

1 stop4h 31m

$359

OntarioBillings

ONT - BIL

ONTBIL

Ontario

jeu. 7/30

5:10 pm-10:50 pm

1 stop4h 40m

Billings Logan Intl

dim. 8/2

5:20 am-8:47 am

1 stop4h 27m

$361

OntarioBillings

ONT - BIL

ONTBIL

Ontario

sam. 10/24

2:14 pm-11:50 pm

1 stop8h 36m

Billings Logan Intl

mer. 10/28

6:01 am-1:19 pm

1 stop8h 18m

$369

OntarioBillings

ONT - BIL

ONTBIL

Ontario

mar. 7/21

7:00 am-3:03 pm

1 stop7h 03m

Billings Logan Intl

ven. 7/24

6:00 am-11:14 am

1 stop6h 14m

$409

OntarioBillings

ONT - BIL

ONTBIL

Ontario

sam. 5/30

7:00 am-2:54 pm

1 stop6h 54m

Billings Logan Intl

sam. 6/6

6:00 am-11:10 am

1 stop6h 10m

$410

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Billings from

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

What is the typical price of a round-trip flight between Ontario and Billings?

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 57m

Direct flights

None
The fastest flight from Ontario to Billings takes 3h 57m
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 3h 57m 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?

  • 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?

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
DeltaPriceFrom $260Free CancellationRating
7.9
8,455 reviews
Search Delta flights
Alaska AirlinesPriceFrom $269Free CancellationRating
7.9
12,367 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $270Free CancellationRating
7.4
9,718 reviews
Search United Airlines flights

Traveling to a place near Billings?

Book flights to Billings if you plan to visit one of these locations
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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.

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