$179 Find Cheap Flights from Duluth to Illinois

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Illinois departing on 4/3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Illinois, as well as popular online travel agencies
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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, Apr 3 - Sun, Apr 5
United Airlines Logo
7:45 am - 9:40 am
DLH
-
ORD
1h 55mnonstop
United Airlines Logo
8:12 pm - 10:01 pm
ORD
-
DLH
1h 49mnonstop
$179United Airlines
Tue, Jan 27 - Sat, Jan 31
Delta Logo
11:56 am - 6:36 pm
DLH
-
MDW
6h 40m1 stop
Delta Logo
11:45 am - 3:44 pm
MDW
-
DLH
3h 59m1 stop
$198Delta
Fri, Feb 13 - Mon, Feb 16
Delta Logo
12:15 pm - 6:01 pm
DLH
-
ORD
5h 46m1 stop
Delta Logo
6:15 am - 11:30 am
ORD
-
DLH
5h 15m1 stop
$198Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
11:56 am - 6:36 pm
DLH
-
MDW
6h 40m1 stop
Delta Logo
9:33 am - 3:44 pm
MDW
-
DLH
6h 11m2 stops
$204Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
4:24 pm - 9:43 pm
DLH
-
ORD
5h 19m1 stop
Delta Logo
6:50 am - 3:44 pm
ORD
-
DLH
8h 54m2 stops
$204Delta
Tue, Jan 27 - Sat, Jan 31
Delta Logo
11:56 am - 9:05 pm
DLH
-
ORD
9h 09m2 stops
Delta Logo
6:50 am - 3:44 pm
ORD
-
DLH
8h 54m2 stops
$209Delta
Fri, Feb 13 - Mon, Feb 16
Delta Logo
12:15 pm - 6:40 pm
DLH
-
MDW
6h 25m1 stop
Delta Logo
7:20 pm - 11:55 pm
MDW
-
DLH
4h 35m1 stop
$213Delta
Fri, Jan 23 - Sun, Jan 25
Delta Logo
11:56 am - 5:55 pm
DLH
-
ORD
5h 59m1 stop
Delta Logo
6:15 am - 11:16 am
ORD
-
DLH
5h 01m1 stop
$213Delta
Wed, Jan 28 - Sat, Jan 31
Delta Logo
11:56 am - 6:36 pm
DLH
-
MDW
6h 40m1 stop
Delta Logo
9:33 am - 3:44 pm
MDW
-
DLH
6h 11m2 stops
$219Delta
Thu, Mar 12 - Sun, Mar 15
United Airlines Logo
7:53 am - 9:50 am
DLH
-
ORD
1h 57mnonstop
United Airlines Logo
8:50 am - 10:43 am
ORD
-
DLH
1h 53mnonstop
$221United Airlines
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.

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 72 hours was to Chicago, at $283 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 72 hours was $283.

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 $359, 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 December, when tickets cost $275 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $681 and $414 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 Thursday and more expensive on a Sunday. On your return trip to Duluth, you should consider flying back on a Saturday, and avoid Thursdays for better deals.

Find deals

Good to know

Low seasonDecember
Cheapest flight$179
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 12% 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.

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

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $504 on average. Morning departures are around 4% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $533.

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 $394 one-way - $381 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 9138 reviews
8.1Crew
7.1Entertainment
6.6Food
7.7Boarding
7.3Comfort
Airline reviews

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

10.0 ExcellentDr. Joseph, Jan 2026
EWR - ORD
Read more United Airlines reviews

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

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

Information on your arrival and departure airports

Duluth (DLH)