HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Duluth

$199+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DLH
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
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

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 June 9, 2026.

This United Airlines deal was found by Cheapflights users on 6/7. 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 7/139:30 pm
ORD
-
DLH
Nonstop1h 53m
United Airlines
Tue 7/216:25 pm
DLH
-
ORD
Nonstop1h 57m
United Airlines
Deal found 6/7$249
This United Airlines deal was found by Cheapflights users on 6/5. 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 12/1311:00 pm
ORD
-
DLH
Nonstop1h 53m
United Airlines
Mon 12/215:00 am
DLH
-
ORD
Nonstop1h 56m
United Airlines
Deal found 6/5$263
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Sat 7/46:00 am
STL
-
DLH
1 stop4h 43m
United Airlines
Fri 7/106:25 pm
DLH
-
STL
1 stop5h 04m
United Airlines
Deal found 6/7$267
This Delta deal was found by Cheapflights users on 6/6. 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 9/253:58 pm
ORD
-
DLH
1 stop6h 37m
Delta
Mon 9/285:15 am
DLH
-
ORD
1 stop6h 34m
Delta
Deal found 6/6$268
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 7/79:30 pm
ORD
-
DLH
Nonstop1h 53m
United Airlines
Tue 7/146:25 pm
DLH
-
ORD
Nonstop1h 57m
United Airlines
Deal found 6/7$281
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Wed 8/59:30 pm
ORD
-
DLH
Nonstop1h 53m
United Airlines
Tue 8/116:23 pm
DLH
-
ORD
Nonstop1h 54m
United Airlines
Deal found 6/5$282
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 7/21:49 pm
MDW
-
DLH
1 stop5h 35m
Delta
Thu 7/911:50 am
DLH
-
MDW
1 stop6h 28m
Delta
Deal found 6/8$283
This Delta deal was found by Cheapflights users on 6/8. 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.
Sat 6/276:25 pm
ORD
-
DLH
1 stop4h 25m
Delta
Mon 7/65:00 am
DLH
-
ORD
1 stop3h 35m
Delta
Deal found 6/8$283
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 7/21:49 pm
MDW
-
DLH
1 stop5h 35m
Delta
Fri 7/38:00 am
DLH
-
MDW
2 stops10h 31m
Delta
Deal found 6/8$289
This Delta deal was found by Cheapflights users on 6/8. 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.
Sat 6/276:25 pm
ORD
-
DLH
1 stop4h 25m
Delta
Sat 7/45:00 am
DLH
-
ORD
2 stops8h 04m
Delta
Deal found 6/8$289
This Delta deal was found by Cheapflights users on 6/8. 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.
Sat 6/276:25 pm
ORD
-
DLH
1 stop4h 25m
Delta
Fri 7/311:48 am
DLH
-
ORD
2 stops8h 43m
Delta
Deal found 6/8$304
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/69:30 pm
ORD
-
DLH
Nonstop1h 53m
United Airlines
Thu 8/66:25 pm
DLH
-
ORD
Nonstop1h 57m
United Airlines
Deal found 6/8$308

Find flight deals from Illinois to Duluth

Keep the following information in mind while searching for Illinois to Duluth flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(United Airlines)

One-way from

$199
(United Airlines)

Popular in

March

Cheapest in

October

Average price

$463

Good round-trip deal

$383 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. 23% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Duluth Intl.
Search Deals

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 June 9, 2026.
Use the filters below to find and compare flights from Illinois to Duluth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Mon 7/6

9:30 pm-11:23 pm

Nonstop1h 53m

Duluth Intl

Thu 8/6

6:25 pm-8:22 pm

Nonstop1h 57m

$308

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Mon 7/13

6:30 am-11:04 am

1 stop4h 34m

Duluth Intl

Tue 7/21

5:00 am-8:30 am

1 stop3h 30m

$313

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Fri 7/10

5:54 pm-10:49 pm

1 stop4h 55m

Duluth Intl

Tue 7/14

5:00 am-8:30 am

1 stop3h 30m

$313

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Wed 11/25

9:30 am-3:44 pm

2 stops6h 14m

Duluth Intl

Sun 11/29

5:10 am-8:49 am

1 stop3h 39m

$319

St. LouisDuluth

STL - DLH

STLDLH

Lambert-St Louis

Sat 7/4

5:36 pm-10:50 pm

1 stop5h 14m

Duluth Intl

Fri 7/10

5:00 am-10:28 am

1 stop5h 28m

$322

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Sat 7/18

6:55 pm-10:49 pm

1 stop3h 54m

Duluth Intl

Sat 7/25

5:00 am-8:37 am

1 stop3h 37m

$328

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Mon 7/13

7:06 pm-10:49 pm

1 stop3h 43m

Duluth Intl

Tue 7/21

8:00 am-1:09 pm

1 stop5h 09m

$328

St. LouisDuluth

STL - DLH

STLDLH

Lambert-St Louis

Sat 7/4

6:00 am-10:43 am

1 stop4h 43m

Duluth Intl

Fri 7/10

6:25 pm-11:29 pm

1 stop5h 04m

$347

St. LouisDuluth

STL - DLH

STLDLH

Lambert-St Louis

Wed 7/1

5:59 pm-11:23 pm

1 stop5h 24m

Duluth Intl

Wed 7/8

6:25 pm-11:29 pm

1 stop5h 04m

$360

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Wed 8/5

9:30 pm-11:23 pm

Nonstop1h 53m

Duluth Intl

Tue 8/11

6:23 pm-8:17 pm

Nonstop1h 54m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 48 resultsSorted by cheapest first
1
2
3
...
5

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, March is the cheapest month in which you can book a flight from Illinois to Duluth (average of $178). Flying from Illinois to Duluth in June is currently the most expensive (average of $273). 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 June 9, 2026.

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 June 9, 2026.

The most flights from USIL to DLH are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Illinois to Duluth?

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 1h 53m. The distance from Illinois to Duluth is about 397 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, Chicago Midway - Duluth Intl or Lambert-St Louis - Duluth Intl as they are the most popular.

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

    Consider Republic Airways (76%), Air New Zealand (71%) or United Airlines (67%) 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 $238. While the most popular route (Chicago O'Hare Intl - Duluth Intl) can be booked for $258 on average, our data indicates $474 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, March is the cheapest month in which you can book a flight from Illinois to Duluth (average of $178). Flying from Illinois to Duluth in June is currently the most expensive (average of $273). 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

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.
Dallas/Fort Worth to Minneapolis flights
Reagan-National to Minneapolis flights
Seattle to Minneapolis flights
Los Angeles to Minneapolis flights
LaGuardia to Minneapolis flights
Dulles Intl to Minneapolis flights
John F Kennedy Intl to Minneapolis flights
Newark to Minneapolis flights
Denver to Minneapolis flights
Atlanta to Minneapolis flights
Sky Harbor Intl to Minneapolis flights
San Francisco to Minneapolis flights
O'Hare Intl to Minneapolis flights
Baltimore to Minneapolis flights
Hobby to Minneapolis flights
Boston to Minneapolis flights
Philadelphia to Minneapolis flights
Midway to Minneapolis flights
George Bush Intcntl to Minneapolis flights
Portland to Minneapolis flights
San Diego to Minneapolis flights
Orlando to Minneapolis flights
Ontario to Minneapolis flights
Tampa to Minneapolis flights
Salt Lake City to Minneapolis flights
Cleveland to Minneapolis flights
Detroit to Minneapolis flights
Charlotte to Minneapolis flights
Austin to Minneapolis flights
Santa Ana to Minneapolis flights
Raleigh to Minneapolis flights
Cincinnati to Minneapolis flights
St. Louis to Minneapolis flights
Fort Lauderdale to Minneapolis flights
Love Field to Minneapolis flights
Nashville to Minneapolis flights
San Jose to Minneapolis flights
Jacksonville to Minneapolis flights
Sacramento to Minneapolis flights
Indianapolis to Minneapolis flights
Fort Myers to Minneapolis flights
Albuquerque to Minneapolis flights
Pittsburgh to Minneapolis flights
Oakland to Minneapolis flights
Hartford to Minneapolis flights
Columbus to Minneapolis flights
San Antonio to Minneapolis flights
Syracuse to Minneapolis flights
Oklahoma City to Minneapolis flights
Miami 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$209Average$372FlexibilityNo 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.