May is the cheapest month to fly this route, with average fares around $260 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $260 | $237 | Best | |
| June 2026 | $301 | $253 | Peak | |
| July 2026 | $264 | $224 | ||
| August 2026 | $267 | $244 |
Departing on Wednesday offers the lowest average fares at $261. Sunday departures are the most expensive at $327, a difference of $66.
The best time to fly is May. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Boston to Los Angeles is May, with average round-trip fares around $260. The lowest fare found in May is $237.
Wednesday departures are the cheapest, averaging $261 round trip. The most expensive day is Sunday at $327.
Based on current pricing trends, booking for May travel offers the best value. Avoid June if possible, as fares average $301 compared to $260 in the cheapest month. August is a solid middle-ground option at $267.
Flying in May instead of June can save you approximately $41 per round trip. The cheapest month averages $260 while the most expensive averages $301.
Airlines, flight times, price calendar, and more for Boston to Los Angeles
View BOS → LAX Details