Cheapest return flights from Chicago to Singapore in May from 666€

AirHint found the following cheapest return flights from Chicago (ORD) to Singapore (SIN) in May 2026 (see full year).

Return flights

04 May - 13 May United
12 May - 27 May United
07 May - 24 May United
08 May - 23 May United
18 May - 22 May Delta
17 May - 22 May Delta

Also check the deals for one-way flights from Chicago to Singapore in May.

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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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