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$545+ Cheap flights from Aalborg (AAL) to Chicago (CHI)

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
AAL — CHI
Feb 21 — Feb 281
Sat 2/21
Sat 2/28
1 adult, Economy
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Cheap flight deals from Aalborg to Chicago

Cheapest flights from Aalborg to Chicago
Explore the most affordable flight options available from Aalborg to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2026.

This Ticket deal was found by Cheapflights users on 1/21. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/510:20 am
AAL
-
ORD
2 stops15h 25m
KLM
Mon 2/94:25 pm
ORD
-
AAL
1 stop14h 20m
KLM
Deal found 1/21$545
This Delta deal was found by Cheapflights users on 1/21. 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 2/52:20 pm
AAL
-
ORD
2 stops16h 35m
Delta
Mon 2/910:29 am
ORD
-
AAL
2 stops16h 21m
Delta
Deal found 1/21$573
This Scandinavian Airlines deal was found by Cheapflights users on 1/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/92:25 pm
AAL
-
ORD
1 stop32h 45m
Scandinavian Airlines
Mon 4/137:15 pm
ORD
-
AAL
1 stop29h 35m
Scandinavian Airlines
Deal found 1/20$717
This Scandinavian Airlines deal was found by Cheapflights users on 1/21. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:00 am
AAL
-
ORD
2 stops21h 35m
Scandinavian Airlines
Mon 2/97:01 am
ORD
-
AAL
3 stops19h 19m
Scandinavian Airlines
Deal found 1/21$796
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:55 am
AAL
-
ORD
1 stop11h 50m
Multiple Airlines
Mon 2/97:20 pm
ORD
-
AAL
1 stop12h 35m
Multiple Airlines
Deal found 1/21$994

Find flight deals from Aalborg to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Aalborg (AAL) to Chicago (CHI). 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 January 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$545
(Ticket)

Popular in

July

Cheapest in

May

Average price

$783
Provider with most accurate pricing for Aalborg-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Aalborg-Chicago (CHI) flights.
Search Deals
From Aalborg to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($152 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aalborg to Chicago 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 22, 2026.
Use the filters below to find and compare flights from Aalborg to Chicago that are best for you.

Fly from

Aalborg

Fly to

Chicago

Route

Depart

Return

Price

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 2/5

10:20 am-6:45 pm

2 stops15h 25m

Chicago O'Hare Intl

Mon 2/9

4:25 pm-1:45 pm

1 stop14h 20m

$545

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 2/5

2:20 pm-11:55 pm

2 stops16h 35m

Chicago O'Hare Intl

Mon 2/9

10:29 am-9:50 am

2 stops16h 21m

$573

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 4/9

2:25 pm-4:10 pm

1 stop32h 45m

Chicago O'Hare Intl

Mon 4/13

7:15 pm-7:50 am

1 stop29h 35m

$717

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 2/5

7:00 am-9:35 pm

2 stops21h 35m

Chicago O'Hare Intl

Mon 2/9

7:01 am-9:20 am

3 stops19h 19m

$796

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

  • Most accurate provider: When it comes to deals on Aalborg-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Aalborg-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Aalborg-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Aalborg-Chicago 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 Aalborg-Chicago 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 Aalborg to Chicago

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

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

Use this chart to determine the optimal time to book a round-trip flight from Aalborg to Chicago. Price data was last updated on January 16, 2026.

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Aalborg to Chicago. 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 Aalborg to Chicago?

Currently, January is the cheapest month in which you can book a flight from Aalborg to Chicago (average of $458). Flying from Aalborg to Chicago in July is currently the most expensive (average of $627). 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.

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

Related info for your journey

Find useful and relevant information for your journey from Aalborg to Chicago. 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 Aalborg to Chicago?

    Most people fly from Aalborg (AAL) if they book a flight from Aalborg to Chicago. On average, Aalborg has 0 outbound flights to Chicago per day from 0 airlines. Aalborg is conveniently located just 4.0 mi from Aalborg’s city center.

  • How long is the flight from Aalborg to Chicago?

    A quick flight from Aalborg to Chicago can take about 15h 25m. KLM provides one of the quickest options available for as low as $545. The distance between Aalborg and Chicago is about 4110 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Aalborg to Chicago (average of $458). Flying from Aalborg to Chicago in July is currently the most expensive (average of $627). 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 Chicago?

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Lansing
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Porter
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