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$179+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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 2/2611:20 am
DLH
-
ORD
Nonstop1h 49m
United Airlines
Thu 3/58:50 am
ORD
-
DLH
Nonstop1h 53m
United Airlines
Deal found 1/27$179
This United Airlines deal was found by Cheapflights users on 1/28. 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 3/203:07 pm
DLH
-
ORD
Nonstop1h 46m
United Airlines
Sun 3/228:50 am
ORD
-
DLH
Nonstop1h 53m
United Airlines
Deal found 1/28$191
This Delta deal was found by Cheapflights users on 1/27. 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 2/204:15 pm
DLH
-
ORD
1 stop5h 15m
Delta
Mon 2/236:51 pm
ORD
-
DLH
1 stop5h 04m
Delta
Deal found 1/27$198
This Delta deal was found by Cheapflights users on 1/28. 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 3/512:15 pm
DLH
-
ORD
1 stop5h 46m
Delta
Mon 3/96:15 am
ORD
-
DLH
1 stop5h 41m
Delta
Deal found 1/28$213
This Delta deal was found by Cheapflights users on 1/27. 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 2/125:00 am
DLH
-
ORD
1 stop3h 40m
Delta
Sun 2/156:15 am
ORD
-
DLH
1 stop5h 15m
Delta
Deal found 1/27$228
This United Airlines deal was found by Cheapflights users on 1/26. 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 6/123:14 pm
DLH
-
ORD
Nonstop1h 44m
United Airlines
Sun 6/148:20 pm
ORD
-
DLH
Nonstop1h 37m
United Airlines
Deal found 1/26$231
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/123:19 pm
DLH
-
ORD
Nonstop1h 46m
United Airlines
Sun 2/158:50 am
ORD
-
DLH
Nonstop1h 53m
United Airlines
Deal found 1/27$235
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/193:19 pm
DLH
-
ORD
Nonstop1h 46m
United Airlines
Mon 2/238:50 am
ORD
-
DLH
Nonstop1h 53m
United Airlines
Deal found 1/27$239
This Delta deal was found by Cheapflights users on 1/28. 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 3/512:15 pm
DLH
-
ORD
1 stop5h 46m
Delta
Sun 3/86:15 am
ORD
-
DLH
1 stop5h 41m
Delta
Deal found 1/28$243
This deal was found by Cheapflights users on 1/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/277:53 am
DLH
-
ORD
Nonstop1h 57m
United Airlines
Mon 3/308:40 am
ORD
-
DLH
Nonstop1h 49m
United Airlines
Deal found 1/27$254
This Delta deal was found by Cheapflights users on 1/28. 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 2/511:51 am
DLH
-
ORD
1 stop6h 04m
Delta
Wed 2/116:15 am
ORD
-
DLH
1 stop4h 56m
Delta
Deal found 1/28$258
This Delta deal was found by Cheapflights users on 1/27. 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 2/1312:15 pm
DLH
-
MDW
1 stop6h 25m
Delta
Mon 2/167:20 pm
MDW
-
DLH
1 stop4h 35m
Delta
Deal found 1/27$288

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(United Airlines)

Popular in

August

Cheapest in

December

Average price

$337

Good round-trip deal

$396 or less

Good one-way deal

$243 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. 22% potential increase in price ($109 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 January 2026
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 January 29, 2026.
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 - ORD

DLHORD

Duluth Intl

Fri 2/20

4:15 pm-9:30 pm

1 stop5h 15m

Chicago O'Hare Intl

Mon 2/23

6:51 pm-11:55 pm

1 stop5h 04m

$198

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Sat 2/21

12:15 pm-6:01 pm

1 stop5h 46m

Chicago O'Hare Intl

Mon 2/23

6:15 am-11:30 am

1 stop5h 15m

$198

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 3/5

12:15 pm-6:01 pm

1 stop5h 46m

Chicago O'Hare Intl

Mon 3/9

6:15 am-11:56 am

1 stop5h 41m

$213

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 2/12

5:00 am-8:40 am

1 stop3h 40m

Chicago O'Hare Intl

Sun 2/15

6:15 am-11:30 am

1 stop5h 15m

$228

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 2/12

3:19 pm-5:05 pm

Nonstop1h 46m

Chicago O'Hare Intl

Sun 2/15

8:50 am-10:43 am

Nonstop1h 53m

$235

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Sat 2/21

3:19 pm-5:05 pm

Nonstop1h 46m

Chicago O'Hare Intl

Mon 2/23

8:50 am-10:43 am

Nonstop1h 53m

$239

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Fri 2/13

11:20 am-1:09 pm

Nonstop1h 49m

Chicago O'Hare Intl

Mon 2/16

8:50 am-10:43 am

Nonstop1h 53m

$239

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Fri 2/20

12:15 pm-6:01 pm

1 stop5h 46m

Chicago O'Hare Intl

Sun 2/22

6:15 am-11:30 am

1 stop5h 15m

$243

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 3/5

12:15 pm-6:01 pm

1 stop5h 46m

Chicago O'Hare Intl

Sun 3/8

6:15 am-11:56 am

1 stop5h 41m

$243

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 2/19

12:15 pm-6:01 pm

1 stop5h 46m

Chicago O'Hare Intl

Mon 2/23

6:51 pm-11:55 pm

1 stop5h 04m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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 $336). 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 January 29, 2026.

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.

Weekly flight availability from Duluth to Illinois

Explore weekly flight availability from Duluth to Illinois. 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 January 29, 2026.

The most flights from DLH to USIL 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).

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 January 29, 2026.
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
9,215 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 5h 15m. Fly via Delta to get the fastest option. There are 397 mi between Duluth and Illinois.

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

    Consider Copa Airlines (66%), SkyWest Airlines (64%) or United Airlines (64%) 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 $218. On average you can expect to pay $677. The most popular route, (Duluth Intl - Chicago O'Hare Intl), can usually be booked for $179.

  • 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 $336). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$209Average$340FlexibilityNo cancel feeOn-time69%

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