Cheap flights from Chicago to Duluth
from 263 US$
From 330 USD — compare hundreds of airlines
The cheapest month is usually 2026-09 · 263 US$
See prices for my dates →Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Chicago to Duluth, a about 651 km route (around 1h 19m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as United Airlines operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Chicago to Duluth?
It's usually 2026-09, from 263 USD. Use the price calendar to compare other dates.
How long is the flight from Chicago to Duluth?
A nonstop flight takes about 1h 19m and covers around 651 km. Connecting itineraries take longer.
Are there direct flights from Chicago to Duluth?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Chicago to Duluth?
United Airlines operate this route, among others. Compare them all in the results.
When should I book Chicago–Duluth flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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Chicago → Duluth · Live fares from 100+ sites — free, with no hidden fees.