$244 Find Cheap Flights from Duluth to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Illinois departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Duluth to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Duluth to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Duluth to Illinois

Fri, Aug 21 - Mon, Aug 24
United Airlines Logo
6:23 pm - 8:19 pm
DLH
-
ORD
1h 56mnonstop
United Airlines Logo
9:30 pm - 11:22 pm
ORD
-
DLH
1h 52mnonstop
$249United Airlines
Tue, Sep 1 - Tue, Sep 8
United Airlines Logo
6:23 pm - 8:19 pm
DLH
-
ORD
1h 56mnonstop
United Airlines Logo
9:20 pm - 11:10 pm
ORD
-
DLH
1h 50mnonstop
$249United Airlines
Fri, Sep 4 - Sat, Sep 5
United Airlines Logo
6:23 pm - 8:19 pm
DLH
-
ORD
1h 56mnonstop
United Airlines Logo
3:43 pm - 5:34 pm
ORD
-
DLH
1h 51mnonstop
$249United Airlines
Fri, Sep 4 - Mon, Sep 7
United Airlines Logo
6:23 pm - 8:19 pm
DLH
-
ORD
1h 56mnonstop
United Airlines Logo
9:30 pm - 11:22 pm
ORD
-
DLH
1h 52mnonstop
$249United Airlines
Sat, Dec 12 - Sat, Jan 2
United Airlines Logo
7:35 am - 9:31 am
DLH
-
ORD
1h 56mnonstop
United Airlines Logo
12:52 pm - 2:50 pm
ORD
-
DLH
1h 58mnonstop
$249United Airlines
Thu, Sep 3 - Mon, Sep 7
United Airlines Logo
6:23 pm - 8:19 pm
DLH
-
ORD
1h 56mnonstop
United Airlines Logo
12:40 pm - 2:29 pm
ORD
-
DLH
1h 49mnonstop
$249United Airlines
Sat, Sep 19 - Sat, Sep 26
United Airlines Logo
6:32 pm - 8:28 pm
DLH
-
ORD
1h 56mnonstop
United Airlines Logo
12:40 pm - 2:29 pm
ORD
-
DLH
1h 49mnonstop
$249United Airlines
Thu, Oct 1 - Sat, Oct 3
Delta Logo
11:43 am - 6:19 pm
DLH
-
MDW
6h 36m
1 stop
Delta Logo
9:59 am - 3:29 pm
MDW
-
DLH
5h 30m
1 stop
$268Delta
Fri, Oct 16 - Tue, Oct 20
Delta Logo
5:14 am - 8:44 am
DLH
-
MDW
3h 30m
1 stop
Delta Logo
12:27 pm - 7:12 pm
MDW
-
DLH
6h 45m
1 stop
$268Delta
Fri, Nov 6 - Sun, Nov 8
Delta Logo
5:14 am - 8:53 am
DLH
-
ORD
3h 39m
1 stop
Delta Logo
6:20 am - 11:44 am
ORD
-
DLH
5h 24m
1 stop
$268Delta
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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Duluth to Illinois departing in September.

Flight prices are below average for this route right now.

Flights to Illinois from Duluth usually cost between $457 and $494 in September.
The lowest price found in the past 5 days was $249 on United Airlines (Sep 4-Sep 7).

What is the cheapest Duluth to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

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 average price for all round-trip flights from Duluth to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $462 on average. Morning departures are around 5% 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?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $403, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Duluth to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

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 $494 respectively.

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

The average price of all round-trip flights from Duluth to Illinois clicked on KAYAK for each day over the last 12 months.

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.

Find deals

Good to know

Low season

January

Cheapest flight

$244
Most popular time to fly and prices are also 18% 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 $363 one-way - $385 round-trip

Reviews of the top airline flying from Duluth to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Duluth to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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 10059 reviews
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

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.

4.0 OkayN, Jul 2026
PHL - ORD
Read more United Airlines reviews

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

Gluten free snack options and meals that offer both gluten free and dairy free.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

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.

Great experience, boarding was fast and efficient, so much so that we arrived to Chicago very early

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

Duluth (DLH)