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$187+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Duluth to Illinois

Keep the following information in mind while searching for Duluth to Illinois flight deals. Data was last updated June 12, 2025.

Round-trip from

$198
(Delta)

Popular in

April

Cheapest in

September

Average price

$284

Good round-trip deal

$399 or less

Good one-way deal

$231 or less
From Duluth Intl to Illinois
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Highest demand for flights based on searches. 16% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Duluth Intl to Illinois.
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Price to beat on a one-way flight from Duluth Intl to Illinois.
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Find 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/12. 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 10/103:07 pmDLH - ORD
Nonstop1h 55mUnited Airlines
Mon 10/138:20 pmORD - DLH
Nonstop1h 53mUnited Airlines
Deal found 6/12$187
This Delta deal was found by Cheapflights users on 6/11. 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 7/165:15 amDLH - ORD
1 stop3h 10mDelta
Mon 7/286:00 amORD - DLH
1 stop4h 23mDelta
Deal found 6/11$198
This Delta deal was found by Cheapflights users on 6/11. 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 6/265:15 amDLH - MDW
1 stop3h 29mDelta
Mon 6/307:21 pmMDW - DLH
1 stop4h 19mDelta
Deal found 6/11$348

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 June 12, 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 - ORD

DLHORD

Duluth Intl

Wed 7/16

5:15 am-8:25 am

1 stop3h 10m

Chicago O'Hare Intl

Mon 7/28

6:00 am-10:23 am

1 stop4h 23m

$198

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Thu 7/10

6:13 pm-8:05 pm

Nonstop1h 52m

Chicago O'Hare Intl

Sat 7/12

9:00 am-10:51 am

Nonstop1h 51m

$218

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Thu 6/26

5:15 am-8:44 am

1 stop3h 29m

Chicago Midway

Mon 6/30

7:21 pm-11:40 pm

1 stop4h 19m

$348

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Fri 7/11

6:13 pm-8:05 pm

Nonstop1h 52m

$209

DuluthChicago

DLH - MDW

DLHMDW

Duluth Intl

Fri 7/11

5:15 am-8:45 am

1 stop3h 30m

$218

DuluthChicago

DLH - ORD

DLHORD

Duluth Intl

Fri 7/11

4:01 pm-9:34 pm

1 stop5h 33m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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, August is the cheapest month in which you can book a flight from Duluth to Illinois (average of $245). Flying from Duluth to Illinois in March is currently the most expensive (average of $321). 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 June 12, 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.

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 June 12, 2025.

The most flights from DLH to USIL are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Duluth to Illinois, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    Consider Republic Airways (100%), Copa Airlines (96%) or United Airlines (85%) 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 $144. On average you can expect to pay $414. The most popular route, (Duluth Intl - Chicago O'Hare Intl), can usually be booked for $184.

  • 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, August is the cheapest month in which you can book a flight from Duluth to Illinois (average of $245). Flying from Duluth to Illinois in March is currently the most expensive (average of $321). 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.

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Top 2 airlines flying from Duluth to Illinois

Discover the top 2 airlines 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$178Average$318FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$310FlexibilityNo cancel feeOn-time69%

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