Cheap flights from Chicago to London
One-way fares from $304, found recently by travellers. Plus what 5 days in London costs once you land.
Cheapest dates we found
- 17 Nov2026ORD → LGWFI · 1 stop · 9h 30m$304one way
- 6 Jan2027ORD → LHRTAP Air Portugal · 1 stop · 10h 55m$306one way
- 8 Nov2026ORD → STNTAP Air Portugal · 2 stops · 14h 35m$309one way
- 4 Jan2027ORD → LHRFI · 1 stop · 9h 30m$318one way
- 31 Dec2026ORD → LGWFI · 1 stop · 9h 30m$322one way
- 17 Oct2026ORD → LHRB6 · 1 stop · 9h 49m$323one way
- 14 Oct2026ORD → LHRB6 · 1 stop · 9h 49m$329one way
- 14 Nov2026ORD → LHRB6 · 1 stop · 9h 34m$329one way
One-way economy prices travellers found on Aviasales in the last few days. They change often, so open a fare to see today's price.
Lowest fare by month
Lowest one-way fare seen for each month. Months with no price had no recent searches.
Airlines on this route
Recent cheap fares were with FI, TAP Air Portugal, B6. Low-cost airlines often charge extra for checked bags and seats, so compare the full price.
When to go to London
May to September has the best weather. Winter is quieter and hotel prices drop after the new year.
Money-saving tips for London
- Tap the same contactless card or phone for every journey; daily and weekly caps apply automatically.
- Meal deals from supermarkets and street food markets keep lunch cheap.
- Buses are cheaper than the Tube, with a flat fare and free transfers within an hour.
Questions
How much is a flight from Chicago to London?
The cheapest one-way fare we found recently was $304 with FI on 17 Nov 2026. Most of the fares we saw were between $304 and $329 one way. Prices change daily, so open the fare to see today's price.
How long is the flight from Chicago to London?
The quickest flight in our recent results took 9h 30m with 1 stop.
Are there direct flights from Chicago to London?
The cheapest fares we found all had at least one stop. Non-stop flights may exist at higher prices, so check the flight search.
What is the cheapest month to fly from Chicago to London?
In our recent results, November had the lowest fare ($304 one way). This is based on prices other travellers found, not a forecast.
How much money do I need for 5 days in London?
About $485 for one backpacker, or $2,300 for two people travelling mid-range (hotel, food, transport and sights, flights not included). Add about $608 per person for a return flight from Chicago.
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Fly to London from
- Istanbul
- Lisbon
- Barcelona
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- Paris
- Amsterdam
- Prague
- Budapest
- Athens
- New York
- Mexico City
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- Berlin
- Munich
- Madrid
- Milan
Fares are recent prices found by travellers, cached for a few hours. Trip costs are planning estimates checked 2026-10-11. Always confirm the final price when you book. Some links are affiliate links; they never change your price.