Cheap flights from Ontario, CA to Belleville, IL

Choose between Allegiant Air, Frontier Airlines, or Spirit Airlines to find the best price

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How much do flights to Belleville cost?

Key info about flying to Belleville

Depart from
Ontario International
Arrive to
MidAmerica St. Louis
Average flights per week
56
Flight distance

Great deals from Ontario to Belleville

Check-in for a flight from Ontario to Belleville

NameCarrier codeIATA CodePassport needed during booking
Allegiant AirAAYG4No
Frontier AirlinesFFTF9No
Spirit AirlinesNKSNKNo
JetBlue AirwaysJBUB6No
AviancaAVAAVNo

Weather in Belleville

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January3°C-3°C
February6°C-2°C
March13°C3°C
April18°C8°C
May23°C14°C
June29°C19°C
July30°C20°C
August29°C19°C
September26°C16°C
October19°C10°C
November12°C3°C
December7°C0°C
Hottest Month
30°C
July
Coldest month
-3°C
January
Sunny days
264
days per year
Snow days
9
days per year

14 day forecast

Sunday
8 Dec
70%
14°C1°C
15 Dec
78%
12°C9°C
Monday
9 Dec
88%
11°C6°C
16 Dec
89%
14°C2°C
Tuesday
10 Dec
3°C0°C
17 Dec
0°C-4°C
Wednesday
11 Dec
3°C-2°C
18 Dec
4°C-4°C
Thursday
12 Dec
2°C-4°C
19 Dec
-4°C-8°C
Friday
13 Dec
65%
11°C-4°C
20 Dec
8°C-6°C
Saturday
14 Dec
9°C1°C
21 Dec
8°C1°C
Travelers usually depart from Ontario International, or Montclair (Ontario) when they travel from Ontario to Belleville. The most popular airlines for this route are Allegiant Air, Frontier Airlines, Spirit Airlines, JetBlue Airways, and Avianca. Ontario and Belleville have 56 direct flights per week.

Frequently asked questions

What are the most popular routes to and from Ontario?
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What airports are near Ontario?
What airports are near Belleville?
Which airlines fly between Ontario and Belleville?
When's the best time to travel between Ontario and Belleville?
What flights operate between Ontario and Belleville?
How many airports are there near Ontario?
How many airports are there near Belleville?
What time do nonstop (direct) flights between Ontario and Belleville depart?
What time do nonstop (direct) flights between Ontario and Belleville arrive?
What time do flights between Ontario and Belleville depart?
What time do flights between Ontario and Belleville arrive?

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Flights from Ontario

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The nearest countries with flights to Belleville

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