AirHint found the following cheapest return flights from Chicago (MDW) to Tokyo (NRT) in August 2025 (see full year).

Return flights

13 Aug - 24 Aug	Porter Airlines (Canada) Ltd
27 Aug - 09 Sep	WestJet
03 Aug - 09 Aug	Porter Airlines (Canada) Ltd
02 Aug - 10 Aug	WestJet
05 Aug - 17 Aug	WestJet
13 Aug - 20 Aug	WestJet
18 Aug - 27 Aug	WestJet
08 Aug - 17 Aug	WestJet
09 Aug - 16 Aug	KLM
20 Aug - 27 Aug	WestJet
11 Aug - 18 Aug	WestJet
02 Aug - 29 Sep	WestJet

Also check the deals for one-way flights from Chicago to Tokyo in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Chicago to Tokyo in August from $1527

Return flights