$225 Find Cheap Flights from Chicago to Thunder Bay

In the last 3 days, the lowest price for a flight from Chicago to Thunder Bay was $225 for a one-way ticket and $346 for a round-trip.

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

When flying out of Chicago you will be using one of these airports: Chicago Midway or Chicago O'Hare Intl. You will be landing at Thunder Bay.

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

Star Alliance is the only airline alliance operating flights between Chicago and Thunder Bay.

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 Chicago to Thunder Bay.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Thunder Bay from Chicago 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 Thunder Bay with an airline and back to Chicago with another airline.

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 Thunder Bay from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.