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Home / Boston — Ontario

Cheap flights Boston — Ontario

Boston (BOS, US) Ontario (ONT, US)
from $159 4 120 km ~5h 21m 3 flights found 3 airlines cheapest on Friday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $159 on 04.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 1 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
04 Dec 2026, Fri
Frontier Airlines F9 1977
19:08
BOS Logan International Airport
05:05
ONT Ontario International Airport
9h 57m 2 stops
Mytrip.com
$159
View this ticket
Route characteristics
Distance
4 120 km
Flight time
5h 21m
Time difference
-3h
Minimum price
from $159 (04.12.2026)
Average price
$159
Maximum price
$159
Cheapest day
Friday
Departure airports (1)
BOS Logan International Airport
Arrival airports (1)
ONT Ontario International Airport
Airlines (3)
F9 Frontier Airlines AA American Airlines UA United Airlines
Agencies (3)
Mytrip.com Farera Авиасейлс
Airlines — cheapest prices 3
Frontier Airlines
Frontier Airlines
Low-cost 1 flights · 1 days
$159
American Airlines
American Airlines
1 flights · 1 days
$202
United Airlines
United Airlines
1 flights · 1 days
$332
Where to buy tickets 3
Mytrip.com
1 tickets · 1 days
from $159
Farera
1 tickets · 1 days
from $202
Авиасейлс
1 tickets · 1 days
from $332
Airports

From — Boston (1)

  • BOS Logan International Airport

To — Ontario (1)

  • ONT Ontario International Airport
Other destinations from Boston
Nantucket
US
Albany
US
Augusta
US
Bar Harbor
US
Hyannis
US
Lebanon
US
Martha's Vineyard
US
Provincetown
US
Rockland
US
Rutland
US
Saranac Lake
US
Dallas
US · Hub
Frequently asked questions about the route Boston — Ontario
How long is the flight from Boston to Ontario?
Approximate flight time — 5h 21m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Boston to Ontario?
The straight-line distance — 4 120 km.
How much do flights from Boston to Ontario cost?
The minimum price over 3 months — from $159 on 04.12.2026.
What is the average ticket price?
The average price — $159. Range: $159 — $159.
What is the time difference between Boston and Ontario?
The difference — -3h.
From which airports does Boston operate flights?
From Boston: BOS (Logan International Airport).
To which airports in Ontario do flights arrive?
To Ontario: ONT (Ontario International Airport).
Which airlines fly this route?
This route is served by 3 airlines: Frontier Airlines, American Airlines, United Airlines.
Which day of the week is cheapest?
The cheapest day of the week — Friday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Boston — Ontario

Flights Boston — Ontario is a popular route. The straight-line distance is 4 120 km. Flight time 5h 21m. Time difference -3h.

From Boston (BOS) flights depart from 1 airport: BOS. To Ontario (ONT) — 1 arrival airport: ONT.

3 airlines operate on this route: Frontier Airlines, American Airlines, United Airlines.

The minimum price for the next 3 months — from $159 (04.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $159, ranging from $159 to $159. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Friday.

Other destinations in United States from Boston
Nantucket
US
Albany
US
Augusta
US
Bar Harbor
US
Hyannis
US
Lebanon
US
Martha's Vineyard
US
Provincetown
US

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