Cheap flights from Ontario, CA to Billings, MT

Flights starting at £105. Choose between United Airlines, Frontier Airlines, or Allegiant Air to find the best price.

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The most popular airlines for this route are United Airlines, Frontier Airlines, Allegiant Air, Alaska Airlines, and Sun Country Airlines. Ontario and Billings have 66 direct flights per week.

Check-in for a flight from Ontario to Billings

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Allegiant AirAAYG4NoOpens 24 days before flight
Closes 1 hours before flight
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Sun Country AirlinesSCXSYYesNo

Weather in Billings

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January0°C-7°C
February0°C-8°C
March7°C-2°C
April12°C1°C
May18°C6°C
June24°C11°C
July30°C16°C
August29°C15°C
September24°C10°C
October14°C3°C
November6°C-2°C
December0°C-8°C
Hottest Month
30°C
July
Coldest month
-8°C
February
Sunny days
278
days per year
Snow days
17
days per year

14 day forecast

Thursday
21 Mar
61%
9°C-3°C
28 Mar
78%
-4°C-5°C
Friday
22 Mar
63%
1°C-5°C
29 Mar
1°C-12°C
Saturday
23 Mar
75%
0°C-5°C
30 Mar
3°C-5°C
Sunday
24 Mar
73%
-8°C-13°C
31 Mar
10°C0°C
Monday
25 Mar
88%
-6°C-21°C
1 Apr
78%
5°C-2°C
Tuesday
26 Mar
87%
-1°C-18°C
2 Apr
9°C-3°C
Wednesday
27 Mar
1°C-11°C
3 Apr
78%
7°C0°C

Frequently asked questions

What are the most popular routes to and from Ontario?
What are the most popular routes to and from Billings?
What airports are near Ontario?
What airports are near Billings?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Ontario and Billings?
What is Virtual Interlining and how do I use it?
Which airlines fly between Ontario and Billings?
When's the best time to travel between Ontario and Billings?
What flights operate between Ontario and Billings?
How many airports are there near Ontario?
How many airports are there near Billings?
What time do nonstop (direct) flights between Ontario and Billings depart?
What time do nonstop (direct) flights between Ontario and Billings arrive?
What time do flights between Ontario and Billings depart?
What time do flights between Ontario and Billings arrive?

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