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$198+ Cheap flights from Duluth (DLH) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — ORD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Duluth to Illinois

Cheapest flights from Duluth to Illinois
Explore the most affordable flight options available from Duluth to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/253:03 pmDLH - ORD
Nonstop2h 02mUnited Airlines
Sat 1/39:05 pmORD - DLH
Nonstop1h 50mUnited Airlines
Deal found 12/17$239
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/247:50 amDLH - ORD
Nonstop2h 03mUnited Airlines
Wed 12/319:05 pmORD - DLH
Nonstop1h 50mUnited Airlines
Deal found 12/17$409
This Delta deal was found by Cheapflights users on 12/17. 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 12/254:10 pmDLH - ORD
1 stop5h 24mDelta
Sat 1/36:35 amORD - DLH
1 stop4h 40mDelta
Deal found 12/17$418
This Delta deal was found by Cheapflights users on 12/17. 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 12/275:00 amDLH - ORD
1 stop6h 50mDelta
Sat 1/310:05 amORD - DLH
1 stop5h 32mDelta
Deal found 12/17$458
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/193:03 pmDLH - ORD
Nonstop2h 02mUnited Airlines
Mon 12/229:05 pmORD - DLH
Nonstop1h 50mUnited Airlines
Deal found 12/17$519
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/303:03 pmDLH - ORD
Nonstop2h 02mUnited Airlines
Fri 1/29:05 pmORD - DLH
Nonstop1h 50mUnited Airlines
Deal found 12/16$588
This Delta deal was found by Cheapflights users on 12/16. 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 12/3011:55 amDLH - ORD
1 stop5h 52mDelta
Fri 1/26:35 amORD - DLH
1 stop4h 40mDelta
Deal found 12/16$718
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/277:50 amDLH - ORD
Nonstop2h 03mUnited Airlines
Sat 1/39:05 pmORD - DLH
Nonstop1h 50mUnited Airlines
Deal found 12/17$809
This Delta deal was found by Cheapflights users on 12/17. 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 12/194:24 pmDLH - ORD
1 stop5h 16mDelta
Mon 12/226:35 amORD - DLH
1 stop4h 40mDelta
Deal found 12/17$833
This Delta deal was found by Cheapflights users on 12/16. 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 12/3011:55 amDLH - MDW
1 stop5h 24mDelta
Fri 1/211:48 amMDW - DLH
1 stop3h 42mDelta
Deal found 12/16$878

Find flight deals from Duluth to Illinois

Keep the following information in mind while searching for Duluth to Illinois flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(United Airlines)

Popular in

August

Cheapest in

March

Average price

$299

Good round-trip deal

$414 or less

Good one-way deal

$373 or less
Provider with most accurate pricing for Duluth Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Duluth Intl-Chicago (CHI) flights.
Search Deals
From Duluth Intl to Illinois
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Duluth Intl to Illinois.
Search Deals
Price to beat on a one-way flight from Duluth Intl to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Duluth to Illinois 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 December 18, 2025.
Use the filters below to find and compare flights from Duluth to Illinois that are best for you.

Fly from

Duluth

Fly to

Illinois

Route

Depart

Return

Price

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Sat 3/7

5:00 am-11:03 am

1 stop6h 03m

Chicago Midway

Wed 3/11

2:03 pm-8:01 pm

1 stop5h 58m

$198

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Sat 3/7

5:00 am-10:25 am

1 stop5h 25m

Chicago O'Hare Intl

Wed 3/11

3:59 pm-8:01 pm

1 stop4h 02m

$198

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Thu 1/8

11:56 am-6:32 pm

1 stop6h 36m

Chicago Midway

Tue 1/13

9:50 am-3:44 pm

1 stop5h 54m

$213

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 2/19

3:19 pm-5:05 pm

Nonstop1h 46m

Chicago O'Hare Intl

Mon 2/23

8:15 pm-9:59 pm

Nonstop1h 44m

$224

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Tue 1/6

11:56 am-6:32 pm

1 stop6h 36m

Chicago Midway

Tue 1/13

9:50 am-3:44 pm

1 stop5h 54m

$228

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 12/25

3:03 pm-5:05 pm

Nonstop2h 02m

Chicago O'Hare Intl

Sat 1/3

9:05 pm-10:55 pm

Nonstop1h 50m

$239

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Fri 1/9

11:56 am-6:32 pm

1 stop6h 36m

Chicago Midway

Sun 1/11

7:16 pm-11:52 pm

1 stop4h 36m

$243

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Thu 2/19

5:00 am-9:06 am

1 stop4h 06m

Chicago Midway

Mon 2/23

7:17 pm-11:25 pm

1 stop4h 08m

$243

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Thu 1/8

11:56 am-6:32 pm

1 stop6h 36m

Chicago Midway

Mon 1/12

7:16 pm-11:52 pm

1 stop4h 36m

$243

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Thu 1/8

5:00 am-12:48 pm

2 stops7h 48m

Chicago Midway

Sun 1/11

7:16 pm-11:52 pm

1 stop4h 36m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 28 results
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Best time to book a flight from Duluth to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Duluth 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 Duluth to Illinois

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

Currently, October is the cheapest month in which you can book a flight from Duluth to Illinois (average of $158). Flying from Duluth to Illinois in December is currently the most expensive (average of $346). 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 DLH to IL?

Find hourly flight availability from Duluth to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Duluth to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown United Airlines from Duluth to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,091 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Related info for your journey

Find useful and relevant information for your journey from Duluth to Illinois. 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 from for flights from Duluth to Illinois?

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

  • How long is the flight from Duluth to Illinois?

    There are many flights that can get you from Duluth to Illinois in 1h 46m. Fly via Delta or United Airlines to get the fastest option. There are 397 mi between Duluth and Illinois. This flight may include one or multiple stops.

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

    Consider Copa Airlines (77%), SkyWest Airlines (73%) or United Airlines (73%) when booking your flight. These represent the most reliable airlines when flying from Duluth to Illinois.

  • What are the cheapest flights from Duluth to Illinois?

    The cheapest flight price from Duluth to Illinois is $233. On average you can expect to pay $791. The most popular route, (Duluth Intl - Chicago O'Hare Intl), can usually be booked for $198.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Duluth to Illinois 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 Duluth to Illinois?

    Currently, October is the cheapest month in which you can book a flight from Duluth to Illinois (average of $158). Flying from Duluth to Illinois in December is currently the most expensive (average of $346). 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

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Top airline flying from Duluth to Illinois

Discover the top airline that operate flights from Duluth to Illinois. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$207Average$341FlexibilityNo cancel feeOn-time69%

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