AirHint found the following cheapest return flights from Chicago (MDW) to London (LHR) in November 2025 (see full year).

Return flights

12 Nov - 19 Nov	Delta
12 Nov - 18 Nov	Delta
07 Nov - 12 Nov	Delta
04 Nov - 09 Nov	Air France
25 Nov - 06 Dec	Air France
14 Nov - 23 Nov	Air France
08 Nov - 06 Dec	KLM
14 Nov - 16 Nov	Air France
20 Nov - 28 Nov	Delta
20 Nov - 24 Nov	Delta
22 Nov - 30 Nov	Delta
21 Nov - 06 Dec	Virgin Atlantic
21 Nov - 24 Nov	Air France

Also check the deals for one-way flights from Chicago to London in November.

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 London in November from $650

Return flights