HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Duluth

$134+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DLH
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago 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 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 March 19, 2026.

This deal was found by Cheapflights users on 3/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:40 am
ORD
-
DLH
Nonstop1h 55m
United Airlines
Sun 7/127:35 am
DLH
-
ORD
Nonstop1h 56m
United Airlines
Deal found 3/16$234
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Thu 4/238:17 pm
ORD
-
DLH
Nonstop1h 49m
United Airlines
Sat 4/255:00 am
DLH
-
ORD
Nonstop1h 55m
United Airlines
Deal found 3/16$239
This United Airlines deal was found by Cheapflights users on 3/16. 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.
Fri 4/34:24 pm
ORD
-
DLH
Nonstop1h 43m
United Airlines
Tue 4/76:57 pm
DLH
-
ORD
Nonstop1h 53m
United Airlines
Deal found 3/16$254
This Delta deal was found by Cheapflights users on 3/15. 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 5/297:13 pm
MDW
-
DLH
1 stop3h 31m
Delta
Sun 5/315:15 am
DLH
-
MDW
1 stop3h 27m
Delta
Deal found 3/15$258
This Delta deal was found by Cheapflights users on 3/13. 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 4/116:35 pm
ORD
-
DLH
1 stop4h 12m
Delta
Sat 4/184:29 pm
DLH
-
ORD
1 stop3h 23m
Delta
Deal found 3/13$258
This United Airlines deal was found by Cheapflights users on 3/17. 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 7/313:40 pm
ORD
-
DLH
Nonstop1h 54m
United Airlines
Sat 8/86:25 pm
DLH
-
ORD
Nonstop1h 56m
United Airlines
Deal found 3/17$262
This United Airlines deal was found by Cheapflights users on 3/17. 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 4/28:17 pm
ORD
-
DLH
Nonstop1h 49m
United Airlines
Sun 4/56:57 pm
DLH
-
ORD
Nonstop1h 53m
United Airlines
Deal found 3/17$269
This Delta deal was found by Cheapflights users on 3/15. 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 4/39:30 am
MDW
-
DLH
1 stop6h 22m
Delta
Sun 4/55:00 am
DLH
-
MDW
1 stop3h 50m
Delta
Deal found 3/15$273
This Delta deal was found by Cheapflights users on 3/15. 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 4/106:15 am
ORD
-
DLH
1 stop5h 41m
Delta
Sun 4/125:00 am
DLH
-
ORD
1 stop3h 40m
Delta
Deal found 3/15$273
This United Airlines deal was found by Cheapflights users on 3/14. 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 7/89:45 pm
ORD
-
DLH
Nonstop1h 53m
United Airlines
Sun 7/126:25 pm
DLH
-
ORD
Nonstop1h 57m
United Airlines
Deal found 3/14$281
This United Airlines deal was found by Cheapflights users on 3/15. 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 5/811:05 pm
ORD
-
DLH
Nonstop1h 37m
United Airlines
Sun 5/106:44 pm
DLH
-
ORD
Nonstop1h 56m
United Airlines
Deal found 3/15$283
This United Airlines deal was found by Cheapflights users on 3/15. 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 6/123:40 pm
ORD
-
DLH
Nonstop1h 54m
United Airlines
Sun 6/147:35 am
DLH
-
ORD
Nonstop1h 57m
United Airlines
Deal found 3/15$295

Find 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 March 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$234

One-way from

$134
(Delta)

Popular in

December

Cheapest in

October

Average price

$209

Good round-trip deal

$213 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 Chicago (CHI) to Duluth Intl
Search Deals
One-way flight from Chicago (CHI) to Duluth Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Duluth Intl.
Search Deals

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 March 19, 2026.
Use the filters below to find and compare flights from Chicago to Duluth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Fri 5/29

7:13 pm-10:44 pm

1 stop3h 31m

Duluth Intl

Sun 5/31

5:15 am-8:42 am

1 stop3h 27m

$258

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Fri 5/29

3:47 pm-7:31 pm

1 stop3h 44m

Duluth Intl

Sun 5/31

12:46 pm-7:20 pm

1 stop6h 34m

$258

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Sat 4/11

6:35 pm-10:47 pm

1 stop4h 12m

Duluth Intl

Sat 4/18

4:29 pm-7:52 pm

1 stop3h 23m

$258

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Thu 4/2

12:43 pm-2:27 pm

Nonstop1h 44m

Duluth Intl

Mon 4/6

7:25 am-9:20 am

Nonstop1h 55m

$269
Quickest round-trip

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Fri 5/8

11:05 pm-12:42 am

Nonstop1h 37m

Duluth Intl

Sun 5/10

6:44 pm-8:40 pm

Nonstop1h 56m

$283

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Wed 5/13

8:45 am-10:34 am

Nonstop1h 49m

Duluth Intl

Sun 5/17

6:44 pm-8:40 pm

Nonstop1h 56m

$299

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Sat 5/23

3:40 pm-5:34 pm

Nonstop1h 54m

Duluth Intl

Wed 6/3

3:03 pm-5:00 pm

Nonstop1h 57m

$299

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Tue 5/26

7:55 pm-9:54 pm

Nonstop1h 59m

Duluth Intl

Wed 6/3

6:10 pm-8:07 pm

Nonstop1h 57m

$299

ChicagoDuluth

ORD - DLH

ORDDLH

Chicago O'Hare Intl

Wed 5/20

9:25 am-3:48 pm

2 stops6h 23m

Duluth Intl

Tue 5/26

5:15 am-8:36 am

1 stop3h 21m

$309

ChicagoDuluth

MDW - DLH

MDWDLH

Chicago Midway

Fri 6/12

2:00 pm-7:26 pm

1 stop5h 26m

Duluth Intl

Tue 6/16

5:10 am-8:38 am

1 stop3h 28m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 41 resultsSorted by cheapest first
1
2
3
...
5

Compare providers for flights from Chicago to Duluth

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Duluth in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Duluth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Duluth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Duluth flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Duluth flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Duluth flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Currently, February is the cheapest month in which you can book a flight from Chicago to Duluth (average of $124). Flying from Chicago to Duluth in March is currently the most expensive (average of $238). 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 March 19, 2026.

When flying from Chicago to Duluth, 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 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 March 19, 2026.

The most flights from CHI to DLH 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 (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 March 19, 2026.
Read through reviews of airlines operating flights from Chicago to Duluth, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,439 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Overall

7.4

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
9,439 reviews
United Airlines
7.4
Good
9,439 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Overall

7.4

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 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 8 inbound flights from Chicago per day from 1 airline. Duluth Intl is conveniently located just 5.8 mi from Duluth’s city center.

  • How long is the flight from Chicago to Duluth?

    Delta and United Airlines can get you from Chicago to Duluth in just under 1h 44m. Your travel time can differ by up to 1h 47m. There are 397 mi between Chicago and Duluth. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Chicago to Duluth round-trip?

    Currently priced at $209, 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. United Airlines is 34% 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: Copa Airlines (83%), SkyWest Airlines (64%), United Airlines (64%).

  • What are the cheapest flights from Chicago to Duluth?

    On average you can expect to pay $378 for a flight from Chicago to Duluth. The cheapest flight overall is $178 while the most popular route, (Chicago O'Hare Intl - Duluth Intl) is currently priced at $234.

  • 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, February is the cheapest month in which you can book a flight from Chicago to Duluth (average of $124). Flying from Chicago to Duluth in March is currently the most expensive (average of $238). 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

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.

Top airline flying from Chicago to Duluth

Discover the top airline 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 March 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$209Average$365FlexibilityNo 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.