Cheap flights from Boston to Tokyo from $435

The cheapest month to fly to Tokyo from Boston is in January. Flight prices, which tend to average around $970, are often lower during this time because this is during the off-season. If you’re not able to fly to Tokyo in January, then February is your next best option. Flight prices from Boston to Tokyo during February average around $1,185.

The cheapest day to depart on your flight to Tokyo is on a Monday when prices can be found for as low as $1,369. This is often the case because there is less demand to fly during this day of the week. Flights from Boston to Tokyo on a Saturday will generally be more expensive and average around $1,936. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the morning is the cheapest time of day to fly from Boston to Tokyo when you can find flight prices for as low as $1,388. Flying to Tokyo in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Tokyo is at noon when prices are around $1,698.

Fly from Boston Logan Intl to Tokyo Narita for the best Boston Logan Intl - Tokyo flight prices

You are more likely to see cheaper flights to Tokyo from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Tokyo for around $1,452 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tokyo from Boston for as low as $1,152 on momondo.

There are 3 cabin classes available to choose from on Boston to Tokyo flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 37% on your flight if you consider stops on a Boston to Tokyo flight.

As of October 2026, prices for Boston to Tokyo flights are approximately 15% more expensive when compared to flights at the same time last year.

Delta, Korean Air, and Alaska Airlines are the most popular carriers operating from Boston Logan Intl to Tokyo

Air Canada, Japan Airlines and United Airlines are the top three most popular airlines that fly to Tokyo from Boston according to our data. Air Canada is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Tokyo. Keep in mind that there are 9 different airlines that fly to Tokyo on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Boston and Tokyo have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, Japan Airlines have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

Toronto (YYZ) was the most common stop: 36% of momondo users choosing 1-stop flights on this route connected there.

Flights via Incheon (ICN) offer the lowest average round-trip price of $633.

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 15h 45m.

Washington, D.C. (IAD) has the shortest average layover time for this route: 1h 21m.

As of October 2026, 4 flights take off from Boston and land in Tokyo each day. The most common flight departure time for this route is 1:00PM, with 100% of daily flights taking off in the afternoon.

28 flights are operational weekly from Boston to Tokyo as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.