Find cheap flights from London Luton Airport to Chicago from $251

In the last 3 days, the lowest price for a flight from London Luton Airport to Chicago O'Hare Intl Airport was $251 for a one-way ticket and $767 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in London Luton Airport and on arrival in Chicago.

We unfortunately don’t have that data for this specific route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Luton Airport to Chicago.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from London Luton Airport is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to London Luton Airport with another airline. Booking your flights between London Luton Airport and ORD can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from London Luton Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.