$173 Find Cheap Flights from Duluth to Illinois - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals
Booking Insights

KAYAK's insights & trends for Duluth to Illinois flights

Get data-powered insights and trends into flights from Duluth to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Duluth to Illinois?

Flight prices are below average for this route right now.

Flights to Illinois from Duluth usually cost between $293 and $419 in October.
The lowest price found in the past 5 days was $269 on United Airlines (Oct 8-Oct 11).

What is the cheapest Duluth to Illinois flight route?

The cheapest ticket to Illinois from Duluth found in the last 5 days was to Chicago, at $308 round-trip. The most popular route is from Duluth (DLH) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $308.

What is the cheapest time of day to fly to Illinois?

The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $460 on average. Morning departures are around 6% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $546.

Can I save money by flying with a layover from Duluth to Illinois?

No, with an average price for the route of $406, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Duluth to Illinois?

The cheapest month for flights from Duluth to Illinois is April, when tickets cost $228 (return) on average. On the other hand, the most expensive months are June and August, when the average cost of round-trip tickets is $592 and $476 respectively.

What’s the cheapest day of the week to fly from Duluth to Illinois?

Your flight ticket price will generally be cheaper if you fly to Illinois on a Tuesday and more expensive on a Sunday. On your return trip to Duluth, you should consider flying back on a Saturday, and avoid Tuesdays for better deals.

Good to know

Low season

September

Cheapest flight

$173
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Duluth to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Duluth to Illinois?

    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 Duluth to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Duluth to Illinois?

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

  • What is the Hacker Fare option on flights from Duluth to Illinois?

    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 from Duluth to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Duluth to Illinois?

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

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Duluth to the following destinations at these prices or less: Chicago $378 one-way - $424 round-trip

Reviews of the top airline flying from Duluth to Illinois

 
Need help choosing which airline to fly with from Duluth to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10146 reviews
6.7Food
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

Food was not Good Nuts came very wet & not tasting Good Main course I asked for Steak they got me Chicken because they don’t have more !!!!

2.0 MediocreRafik, Aug 2026
Read more United Airlines reviews

Food was not Good Nuts came very wet & not tasting Good Main course I asked for Steak they got me Chicken because they don’t have more !!!!

It cancelled and we were unable to catch our connecting international flights.

Leaving at 7 when scheduled to leave at 4:20 - you tell me. Understood there was a ground stop. Then having to "reboot" the plane because of a lighting strike, also understood. But basically the flight was a "clusterf#$%".

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

The Wi-Fi did not work, so you weren't able to watch entertainment on your own device. They did not have wired headphones so you couldn't watch it on the in-seat entertainment screen either. There was plenty of time to do a drink and snag service but the flight attendants chose not to.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

Everything you need to know for your flight from Duluth to Illinois

Information on your arrival and departure airports