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$547+ Cheap flights from Aalborg (AAL) 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
AAL — ORD
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap flight deals from Aalborg to Illinois

Cheapest flights from Aalborg to Illinois
Explore the most affordable flight options available from Aalborg to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This Ticket deal was found by Cheapflights users on 2/9. 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.
Wed 2/256:00 am
AAL
-
ORD
1 stop15h 20m
Multiple Airlines
Sun 3/14:25 pm
ORD
-
AAL
1 stop23h 05m
Multiple Airlines
Deal found 2/9$547
This Ticket deal was found by Cheapflights users on 2/11. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:20 pm
AAL
-
ORD
2 stops16h 36m
KLM
Mon 3/24:25 pm
ORD
-
AAL
1 stop14h 20m
KLM
Deal found 2/11$559
This Delta deal was found by Cheapflights users on 2/9. 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 3/106:00 am
AAL
-
ORD
2 stops18h 53m
Delta
Tue 3/171:57 pm
ORD
-
AAL
2 stops17h 48m
Delta
Deal found 2/9$586
This Delta deal was found by Cheapflights users on 2/9. 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 2/256:00 am
AAL
-
ORD
2 stops18h 43m
Delta
Sun 3/14:25 pm
ORD
-
AAL
1 stop14h 20m
Delta
Deal found 2/9$595
This KLM deal was found by Cheapflights users on 2/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/102:20 pm
AAL
-
ORD
1 stop31h 00m
KLM
Tue 3/171:37 pm
ORD
-
AAL
2 stops14h 13m
KLM
Deal found 2/9$605
This Scandinavian Airlines deal was found by Cheapflights users on 2/8. 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 4/96:50 pm
AAL
-
ORD
1 stop28h 20m
Scandinavian Airlines
Mon 4/137:15 pm
ORD
-
AAL
1 stop21h 40m
Scandinavian Airlines
Deal found 2/8$723
This Trip.com deal was found by Cheapflights users on 2/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/269:50 am
AAL
-
ORD
1 stop13h 55m
Scandinavian Airlines
Mon 3/27:20 pm
ORD
-
AAL
1 stop14h 50m
Scandinavian Airlines
Deal found 2/11$728

Find flight deals from Aalborg to Illinois

Keep the following information in mind while searching for Aalborg to Illinois flight deals. Data was last updated February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$547
(Ticket)

Popular in

July

Cheapest in

May

Average price

$660
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 Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aalborg 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 February 12, 2026.
Use the filters below to find and compare flights from Aalborg to Illinois that are best for you.

Fly from

Aalborg

Fly to

Illinois

Route

Depart

Return

Price

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 2/26

2:20 pm-11:56 pm

2 stops16h 36m

Chicago O'Hare Intl

Mon 3/2

4:25 pm-1:45 pm

1 stop14h 20m

$559

AalborgChicago

AAL - ORD

AALORD

Aalborg

Tue 3/10

6:00 am-6:53 pm

2 stops18h 53m

Chicago O'Hare Intl

Tue 3/17

1:57 pm-1:45 pm

2 stops17h 48m

$586

AalborgChicago

AAL - ORD

AALORD

Aalborg

Wed 2/25

6:00 am-5:43 pm

2 stops18h 43m

Chicago O'Hare Intl

Sun 3/1

4:25 pm-1:45 pm

1 stop14h 20m

$595

AalborgChicago

AAL - ORD

AALORD

Aalborg

Tue 3/10

2:20 pm-3:20 pm

1 stop31h 00m

Chicago O'Hare Intl

Tue 3/17

1:37 pm-9:50 am

2 stops14h 13m

$605

AalborgChicago

AAL - ORD

AALORD

Aalborg

Thu 4/9

6:50 pm-4:10 pm

1 stop28h 20m

Chicago O'Hare Intl

Mon 4/13

7:15 pm-11:55 pm

1 stop21h 40m

$723

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Best time to book a flight from Aalborg to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois

What is the cheapest month to book a flight from Aalborg to Illinois?

Currently, January is the cheapest month in which you can book a flight from Aalborg to Illinois (average of $458). Flying from Aalborg to Illinois in June is currently the most expensive (average of $645). 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.

Related info for your journey

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

    Located just 4.0 mi from the city center, Aalborg (AAL) is the airport most travelers will use when flying to Illinois from Aalborg.

  • How long is the flight from Aalborg to Illinois?

    Departing from Aalborg to Illinois will take you 16h 36m. The distance between Aalborg and Illinois is about 4110 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Aalborg to Illinois (average of $458). Flying from Aalborg to Illinois in June is currently the most expensive (average of $645). 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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