Cheap flights from Ontario, CA to Boston, MA
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Boston
Cheapest one-way trip | $193 |
---|---|
Cheapest round-trip | $384 |
Average round-trip | $714 |
Most popular airline | United Airlines |
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The most popular airlines for this route are United Airlines, and Alaska Airlines. Ontario and Boston have 40 direct flights per week.
Check-in for a flight from Ontario to Boston
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
United Airlines | UAL | UA | Yes | No |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
Weather in Boston
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 2°C | -4°C |
February | 3°C | -3°C |
March | 7°C | 0°C |
April | 13°C | 5°C |
May | 19°C | 10°C |
June | 23°C | 14°C |
July | 27°C | 18°C |
August | 27°C | 18°C |
September | 23°C | 14°C |
October | 17°C | 9°C |
November | 10°C | 3°C |
December | 5°C | 0°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Ontario
- Flights from Ontario to Denver
- Flights from Ontario to Orlando
- Flights from Ontario to Austin
- Flights from Ontario to Las Vegas
- Flights from Ontario to Atlanta
- Flights from Ontario to Sacramento
- Flights from Ontario to San Francisco
- Flights from Ontario to Seattle
- Flights from Ontario to San Antonio
- Flights from Ontario to Guadalajara
- Flights from Ontario to Charlotte
- Flights from Ontario to New Orleans
- Flights from Ontario to Fort Lauderdale
- Flights from Ontario to Philadelphia
- Flights from Ontario to Washington, D.C.
- Flights from Ontario to Oakland
- Flights from Ontario to San Jose
- Flights from Ontario to Detroit
- Flights from Ontario to Minneapolis
- Flights from Ontario to Chicago
Flights to Boston
- Flights from London to Boston
- Flights from Orlando to Boston
- Flights from Denver to Boston
- Flights from Paris to Boston
- Flights from Barcelona to Boston
- Flights from Rome to Boston
- Flights from Raleigh to Boston
- Flights from Amsterdam to Boston
- Flights from Munich to Boston
- Flights from Miami to Boston
- Flights from Washington, D.C. to Boston
- Flights from Madrid to Boston
- Flights from Athens to Boston
- Flights from Los Angeles to Boston
- Flights from Dublin to Boston
- Flights from Fort Lauderdale to Boston
- Flights from Austin to Boston
- Flights from Atlanta to Boston
- Flights from Milan to Boston
- Flights from San Francisco to Boston
Popular routes
- Flights from Jeddah to Addis Ababa
- Flights from Budapest to Baku
- Flights from Beirut to Orlando
- Flights from Coimbatore to New York
- Flights from Valencia to Miami
- Flights from New York to Goiânia
- Flights from Guadalajara to Lima
- Flights from Hartford to San Antonio
- Flights from Lagos to Bridgetown
- Flights from Chicago to Las Vegas
- Flights from Chicago to Denver
- Flights from Washington, D.C. to Denver
- Flights from Shenyang to San Francisco