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$143+ Cheap flights from Chicago (CHI) 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DLH
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Duluth Intl are usually found in October or December, booked 45 days in advance, depart on a Friday or Saturday and return on a Friday

Cheap flight deals from Chicago to Duluth

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Duluth (DLH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 31, 2025.

Round-trip from

$214
(United Airlines)

One-way from

$143
(Delta)

Popular in

June

Cheapest in

October

Average price

$373

Good round-trip deal

$328 or less

Good one-way deal

$333 or less
From Chicago (CHI) to Duluth Intl
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One-way flight from Chicago (CHI) to Duluth Intl
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Highest demand for flights based on searches. 16% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Duluth Intl.
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Price to beat on a one-way flight from Chicago (CHI) to Duluth Intl.
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Find flight deals from Chicago to Duluth

Cheapest flights from Chicago to Duluth
Explore the most affordable flight options available from Chicago to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/30. 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 9/198:12 pmORD - DLH
Nonstop1h 53mUnited Airlines
Sun 9/218:00 amDLH - ORD
Nonstop1h 55mUnited Airlines
Deal found 7/30$214
This Delta deal was found by Cheapflights users on 7/30. 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 8/196:10 amORD - DLH
1 stop4h 05mDelta
Sat 8/235:10 amDLH - ORD
1 stop3h 14mDelta
Deal found 7/30$228
This Delta deal was found by Cheapflights users on 7/30. 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.
Sun 8/317:17 pmMDW - DLH
1 stop3h 29mDelta
Sat 9/65:10 amDLH - MDW
2 stops7h 18mDelta
Deal found 7/30$294

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 July 31, 2025.
Use the filters below to find and compare flights from Chicago to Duluth that are best for you.

Fly from

Chicago

Fly to

Duluth

Route

Depart

Return

Price

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Fri 9/19

8:12 pm-10:05 pm

Nonstop1h 53m

Duluth Intl

Sun 9/21

8:00 am-9:55 am

Nonstop1h 55m

$214

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Tue 8/19

6:10 am-10:15 am

1 stop4h 05m

Duluth Intl

Sat 8/23

5:10 am-8:24 am

1 stop3h 14m

$228

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Sun 8/31

7:17 pm-10:46 pm

1 stop3h 29m

Duluth Intl

Sat 9/6

5:10 am-12:28 pm

2 stops7h 18m

$294

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Wed 10/1

6:15 am-10:07 am

1 stop3h 52m

$143

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Wed 10/1

8:58 am-10:45 am

Nonstop1h 47m

$209

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Tue 8/12

1:43 pm-7:20 pm

1 stop5h 37m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Chicago to Duluth

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

How far ahead should I book a flight from Chicago to Duluth?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Duluth. Price data was last updated on July 25, 2025.

Booking 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to Duluth. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Duluth (average of $336). Flying from Chicago to Duluth in June is currently the most expensive (average of $476). 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 CHI to DLH?

Find hourly flight availability from Chicago 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 July 31, 2025.

It’s typically best to fly out from Chicago to Duluth at noon. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Chicago to Duluth

Explore weekly flight availability from Chicago 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 July 31, 2025.

The most flights from CHI to DLH are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

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

Reviews of airlines servicing Duluth

Get insights into the airlines that provide service to Duluth. 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 Duluth. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Chicago to Duluth, 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
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
8.0
Excellent

Marie Antonette,Sep 2023

CDG - MSP

The actual flight out of MSP was great. However, it was delayed by an hour and we didn’t have anyone at our gate to provide any information until boarding.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

    Most people fly into Duluth Intl (DLH) if they book a flight to Duluth from Chicago. On average, Duluth Intl has 7 inbound flights from Chicago per day from 2 airlines. Duluth Intl is conveniently located just 5.8 mi from Duluth’s city center.

  • What are the cheapest airlines flying from Chicago to Duluth round-trip?

    Currently priced at $214, United Airlines will fly you from Chicago to Duluth and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $228. United Airlines is 29% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to Duluth on time: Air New Zealand (75%), Republic Airways (75%), United Airlines (63%).

  • What are the cheapest flights from Chicago to Duluth?

    On average you can expect to pay $396 for a flight from Chicago to Duluth. The cheapest flight overall is $238 while the most popular route, (Chicago O'Hare Intl - Duluth Intl) is currently priced at $182.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago to Duluth (average of $336). Flying from Chicago to Duluth in June is currently the most expensive (average of $476). 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

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Alternative routes for Chicago to Duluth

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Top 2 airlines flying from Chicago to Duluth

Discover the top 2 airlines that operate flights from Chicago 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$188Average$268FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$229Average$343FlexibilityNo cancel feeOn-time69%

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