HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Duluth

$190+ Cheap flights from Illinois to Duluth (DLH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DLH
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Duluth with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Duluth

Keep the following information in mind while searching for Illinois to Duluth flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$198
(Delta)

One-way from

$190
(United Airlines)

Popular in

June

Cheapest in

December

Average price

$310

Good round-trip deal

$262 or less
Provider with most accurate pricing for Chicago (CHI)-Duluth Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Duluth Intl flights.
Search Deals
From Illinois to Duluth Intl
Search Deals
One-way flight from Illinois to Duluth Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Duluth Intl.
Search Deals

Find flight deals from Illinois to Duluth

Cheapest flights from Illinois to Duluth
Explore the most affordable flight options available from Illinois to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amORD - DLH
1 stop5h 20mDelta
Sun 12/145:00 amDLH - ORD
1 stop6h 40mDelta
Deal found 11/3$198
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/218:35 pmORD - DLH
1 stop3h 15mDelta
Tue 11/255:10 amDLH - ORD
1 stop3h 20mDelta
Deal found 11/3$213
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:51 amORD - DLH
Nonstop1h 47mUnited Airlines
Sun 11/167:55 amDLH - ORD
Nonstop1h 59mUnited Airlines
Deal found 11/1$239
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:13 pmORD - DLH
Nonstop1h 46mUnited Airlines
Sun 12/217:50 amDLH - ORD
Nonstop2h 03mUnited Airlines
Deal found 11/2$247
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:50 pmMDW - DLH
1 stop5h 45mDelta
Sun 12/1412:01 pmDLH - MDW
1 stop6h 17mDelta
Deal found 11/2$253
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/58:13 pmORD - DLH
Nonstop1h 46mUnited Airlines
Mon 12/82:57 pmDLH - ORD
Nonstop1h 59mUnited Airlines
Deal found 11/1$257
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:35 pmORD - DLH
1 stop3h 15mDelta
Sun 11/165:10 amDLH - ORD
1 stop3h 20mDelta
Deal found 11/2$258
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/218:51 amORD - DLH
Nonstop1h 47mUnited Airlines
Tue 11/253:06 pmDLH - ORD
Nonstop1h 59mUnited Airlines
Deal found 11/3$279
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:30 pmORD - DLH
2 stops9h 29mDelta
Sun 12/145:00 amDLH - ORD
2 stops8h 50mDelta
Deal found 11/3$294
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:51 amORD - DLH
Nonstop1h 47mUnited Airlines
Mon 12/82:57 pmDLH - ORD
Nonstop1h 59mUnited Airlines
Deal found 11/1$297
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:00 amSTL - DLH
1 stop5h 21mDelta
Sun 11/165:10 amDLH - STL
1 stop3h 45mDelta
Deal found 11/2$298
This United Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:51 amORD - DLH
Nonstop1h 47mUnited Airlines
Fri 11/2111:14 amDLH - ORD
Nonstop1h 59mUnited Airlines
Deal found 11/1$299

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Duluth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Illinois to Duluth that are best for you.

Fly from

Illinois

Fly to

Duluth

Route

Depart

Return

Price

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Tue 12/9

6:00 am-11:20 am

1 stop5h 20m

Duluth Intl

Sun 12/14

5:00 am-8:40 am

1 stop3h 40m

$198

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Wed 12/10

6:00 am-11:20 am

1 stop5h 20m

Duluth Intl

Sun 12/14

5:00 am-11:40 am

1 stop6h 40m

$198

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Mon 12/1

6:00 am-11:21 am

1 stop5h 21m

Duluth Intl

Mon 12/8

5:00 am-8:40 am

1 stop3h 40m

$198

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Tue 2/17

8:50 am-10:43 am

Nonstop1h 53m

Duluth Intl

Sat 2/21

11:20 am-1:09 pm

Nonstop1h 49m

$205

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Sat 2/14

8:50 am-10:43 am

Nonstop1h 53m

Duluth Intl

Tue 2/17

11:20 am-1:09 pm

Nonstop1h 49m

$209

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Sun 12/14

8:13 pm-9:59 pm

Nonstop1h 46m

Duluth Intl

Sun 12/21

7:50 am-9:53 am

Nonstop2h 03m

$247

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Tue 12/9

1:50 pm-7:35 pm

1 stop5h 45m

Duluth Intl

Sun 12/14

12:01 pm-6:18 pm

1 stop6h 17m

$253

St. LouisDuluth

STL - DLH

STLDLH

Lambert-St Louis

Fri 11/14

6:00 am-11:21 am

1 stop5h 21m

Duluth Intl

Sun 11/16

5:10 am-8:55 am

1 stop3h 45m

$298

St. LouisDuluth

STL - DLH

STLDLH

Lambert-St Louis

Sat 1/31

6:10 am-11:16 am

1 stop5h 06m

Duluth Intl

Sun 2/1

4:41 pm-11:25 pm

1 stop6h 44m

$313

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Mon 12/1

9:41 am-3:38 pm

1 stop5h 57m

Duluth Intl

Mon 12/8

12:01 pm-6:18 pm

1 stop6h 17m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 36 results
1
2
3
4

Best time to book a flight from Illinois to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Illinois to Duluth?

Currently, October is the cheapest month in which you can book a flight from Illinois to Duluth (average of $143). Flying from Illinois to Duluth in March is currently the most expensive (average of $249). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to DLH?

Find hourly flight availability from Illinois to Duluth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Duluth as you normally would.

Weekly flight availability from Illinois to Duluth

Explore weekly flight availability from Illinois to Duluth. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 3, 2025.

The most flights from USIL to DLH are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Duluth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Duluth from Illinois?

    Located just 5.8 mi from the city center, Duluth Intl (DLH) is the airport most travelers will use when flying to Duluth from Illinois.

  • How long is the flight from Illinois to Duluth?

    Departing from Illinois to Duluth will take you 5h 20m. The distance from Illinois to Duluth is about 397 mi.

  • What are the most popular routes from Illinois to Duluth?

    When deciding which route to take from Illinois to Duluth consider Chicago O'Hare Intl - Duluth Intl, Lambert-St Louis - Duluth Intl or Chicago Midway - Duluth Intl as they are the most popular.

  • What are the most reliable airlines from Illinois to Duluth?

    Consider Emirates (78%), Air New Zealand (77%) or SkyWest Airlines (72%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Duluth.

  • What are the cheapest flights from Illinois to Duluth?

    Looking at all options, your cheapest flight can be booked for $184. While the most popular route (Chicago O'Hare Intl - Duluth Intl) can be booked for $205 on average, our data indicates $279 when flying from Illinois to Duluth.

  • Can I find deals for flights from Illinois to Duluth that include hotel bookings?

    Yes. In addition to deals on Illinois to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Duluth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Duluth.

  • Can I find deals for business class flights from Illinois to Duluth?

    Yes. Cheapflights offers flight deals from Illinois to Duluth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Duluth?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Duluth (average of $143). Flying from Illinois to Duluth in March is currently the most expensive (average of $249). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Duluth?

Book flights to Duluth if you plan to visit one of these locations
Two Harbors
Superior

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Duluth

See prices for flight routes from nearby airports that may be better suited for you.
Wichita to Minneapolis flights
John F Kennedy Intl to Minneapolis flights
Newark to Minneapolis flights
Dallas/Fort Worth to Minneapolis flights
Seattle to Minneapolis flights
Los Angeles to Minneapolis flights
San Francisco to Minneapolis flights
O'Hare Intl to Minneapolis flights
LaGuardia to Minneapolis flights
Denver to Minneapolis flights
Sky Harbor Intl to Minneapolis flights
Baltimore to Minneapolis flights
Dulles Intl to Minneapolis flights
Orlando to Minneapolis flights
Boston to Minneapolis flights
Midway to Minneapolis flights
Hobby to Minneapolis flights
Reagan-National to Minneapolis flights
Atlanta to Minneapolis flights
Portland to Minneapolis flights
Salt Lake City to Minneapolis flights
Charlotte to Minneapolis flights
Detroit to Minneapolis flights
Austin to Minneapolis flights
Tampa to Minneapolis flights
George Bush Intcntl to Minneapolis flights
San Diego to Minneapolis flights
Raleigh to Minneapolis flights
Santa Ana to Minneapolis flights
Boise to Minneapolis flights
Philadelphia to Minneapolis flights
Ontario to Minneapolis flights
Columbus to Minneapolis flights
Hartford to Minneapolis flights
Kansas City to Minneapolis flights
Fort Lauderdale to Minneapolis flights
Indianapolis to Minneapolis flights
Richmond to Minneapolis flights
Miami to Minneapolis flights
San Jose to Minneapolis flights
Nashville to Minneapolis flights
St. Louis to Minneapolis flights
Jacksonville to Minneapolis flights
Las Vegas to Minneapolis flights
Grand Rapids to Minneapolis flights
Milwaukee to Minneapolis flights
Oklahoma City to Minneapolis flights
Cleveland to Minneapolis flights
Pittsburgh to Minneapolis flights
Cincinnati to Minneapolis flights

Top airline flying from Illinois to Duluth

Discover the top airline that operate flights from Illinois to Duluth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$209Average$354FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.