Cheap flights from Illinois to Japan from $431

The month of February is, on average, the cheapest month to fly to Japan from Illinois, with most prices found around $1,092. If you aren’t able to travel to Japan during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $1,131.

On average, the least expensive day to fly to Japan from Illinois is on a Monday. momondo users have found tickets for Monday departures for as low as $1,132. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Illinois to Japan on a Saturday will generally be more expensive and average around $1,438. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Japan from Illinois in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,147 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to Japan, so prices are often more expensive at around $1,395 per ticket.

Fly from Chicago O'Hare Intl to Tokyo Narita for the best Illinois - Japan flight prices

You are more likely to see cheaper flights to Japan from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Japan for around $1,447 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from Illinois for as low as $1,251 on momondo.

There are 4 cabin classes available to choose from on Illinois to Japan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Air Canada, Delta, and United Airlines are the most popular carriers operating from Illinois to Japan

ANA, United Airlines and Japan Airlines are the top three most popular airlines that fly to Japan from Illinois according to our data. ANA is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 8 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.

As of August 2026, there are 14 flights per day flying from Illinois to Japan. The most common time of day flights depart is 5:00PM, with 60% of flights taking off in the afternoon.

As of August 2026, there are 103 flights per week flying from Illinois to Japan. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.