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Ontario International Airport to Boston flight
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Cheap Flights from Ontario International Airport to Boston

Search for flights from Ontario International Airport to Boston. Find affordable one-way or round-trip flights.

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • ONT00:59
        27h 22m
        2 stops
        BOS07:21
        Ontario - Boston|Tue, Apr 30|Frontier Airlines
        US$69US$152
        55% OFF
        55% OFF
        US$152US$69
      • ONT22:59
        13h 17m
        2 stops
        BOS15:16
        Ontario - Boston|Mon, May 6|Frontier Airlines
        US$81US$152
        47% OFF
        47% OFF
        US$152US$81
      • ONT12:39
        17h 47m
        2 stops
        BOS09:26
        Ontario - Boston|Wed, May 15|Frontier Airlines
        US$87US$152
        43% OFF
        43% OFF
        US$152US$87
      • ONT00:59
        27h 30m
        2 stops
        BOS07:29
        Ontario - Boston|Mon, May 20|Frontier Airlines
        US$95
        US$95
      • ONT00:59
        27h 22m
        2 stops
        BOS07:21
        Ontario - Boston|Tue, May 14|Frontier Airlines
        US$96
        US$96
      • ONT00:59
        27h 22m
        2 stops
        BOS07:21
        Ontario - Boston|Tue, May 7|Frontier Airlines
        US$98
        US$98
      • ONT07:04
        23h 39m
        2 stops
        BOS09:43
        Ontario - Boston|Sat, May 18|Frontier Airlines
        US$103
        US$103
      • ONT00:59
        27h 30m
        2 stops
        BOS07:29
        Ontario - Boston|Wed, May 22|Frontier Airlines
        US$105
        US$105
      • ONT00:59
        29h 32m
        2 stops
        BOS09:31
        Ontario - Boston|Mon, May 13|Frontier Airlines
        US$107
        US$107
      • ONT00:59
        28h 58m
        2 stops
        BOS08:57
        Ontario - Boston|Fri, May 17|Frontier Airlines
        US$114
        US$114
      • ONT13:00
        3h 5m
        Direct
        BOS14:00
        Los Angeles - Boston|Mon, May 6|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Ontario International Airport to Boston

View airlines operating flights from Ontario International Airport to Boston. Compare prices and find the airline that meets your travel needs to enjoy a comfortable journey.

Frontier Airlines
From US$69
Delta Air Lines
From US$128
Alaska Airlines
From US$130
Jetblue Airways
From US$146
United Airlines
From US$182
Southwest Airlines
From US$207
American Airlines
From US$225
ANA airlines
Find more flights and airlines

Flight Info of Flights from Ontario International Airport to Boston

Cheapest round-trip ticket price

$207

Cheapest nonstop flight price

$61

Off-season for travel

December

Peak season for travel

October

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