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Flights from Boston to Ontario
There are no direct flights from Boston to Ontario. The fastest way is one stop via Denver or Atlanta, about 7h 20m door to door (467 connections a week on current schedules).
No direct flights · 6 connection options From 7h 20m Prices checked 14 days ago
Boston to Ontario at a glance
Cheapest returnUS$373Fri 1 Jan – Sun 10 JanFastest journey7h 20mVia Denver, on current schedules
Nonstop flightsNoneConnect via Denver or Atlanta
Best ways to fly from Boston to Ontario
Ranked by how easy the connection is: one airline or alliance first (bags and connection protected), then the quickest self-transfer options.
1Search
BOS Denver (DEN) ONT
Leg 1: Delta Air Lines, JetBlue Airways, Southwest Airlines · Leg 2: Frontier Airlines, Southwest Airlines, United Airlines
Sun05:30 BOS07:42 DEN1h 03m connection08:45 DEN09:50 ONTSouthwest Airlines
2Search
BOS Atlanta (ATL) ONT
Leg 1: Delta Air Lines, Frontier Airlines, JetBlue Airways · Leg 2: Delta Air Lines
Thu17:15 BOS19:44 ATL0h 46m connection20:30 ATL21:40 ONTDelta Air Lines
3Search
BOS Dallas (DFW) ONT
Leg 1: American Airlines, Delta Air Lines · Leg 2: American Airlines, Frontier Airlines
Mon09:30 BOS12:21 DFW0h 54m connection13:15 DFW14:04 ONTAmerican Airlines
4Search
BOS Phoenix (PHX) ONT
Leg 1: American Airlines, Delta Air Lines, JetBlue Airways · Leg 2: American Airlines, Southwest Airlines, Envoy Air
Mon07:15 BOS09:33 PHX1h 12m connection10:45 PHX11:49 ONTAmerican Airlines
5Search
BOS Chicago (ORD) ONT
Leg 1: American Airlines, Delta Air Lines, JetBlue Airways · Leg 2: United Airlines, Volaris
Mon17:15 BOS18:49 ORD1h 41m connection20:30 ORD22:26 ONTUnited Airlines
6Search
BOS San Francisco (SFO) ONT
Leg 1: Delta Air Lines, JetBlue Airways, United Airlines · Leg 2: Frontier Airlines, United Airlines
Mon06:15 BOS09:31 SFO1h 14m connection10:45 SFO12:00 ONTUnited Airlines
Connections are computed from flights actually flown over the last 8 weeks, with at least 45 minutes to change on one airline and 2 hours on separate tickets. Times are local. The search shows live itineraries and exact times.
Good to know
- Distance
- 4,120 km2,559 miles
- Journey time
- 7h 20mon current schedules
- Time difference
- -3hOntario vs Boston
- Currency in Ontario
- USD
- Airports
- BOS, PSM → ONT
Flights from Boston to Ontario: questions answered
Are there direct flights from Boston to Ontario?
No. There is no nonstop service, so you will connect, most easily in Denver, Atlanta and Dallas. Some connections are on one airline or alliance, so your bags and connection are protected on a single ticket.
How long is the flight from Boston to Ontario?
With one connection the journey usually takes around 7h 20m, depending on the layover. The straight-line distance is 4,120 km.
Where do you change planes between Boston and Ontario?
The best connecting points are Denver (DEN), Atlanta (ATL), Dallas (DFW) and Phoenix (PHX). Delta Air Lines flies both legs via Denver, so you can book it as one ticket.
Which airports serve Boston and Ontario?
Boston: Boston Logan International Airport (BOS) and Portsmouth International Airport at Pease (PSM). Ontario: Ontario International Airport (ONT).
What is the time difference between Boston and Ontario?
Ontario is 3 hours behind Boston.
