$146 Find Cheap Flights from North Dakota to Illinois - Compare and Save

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Low season

January

Cheapest flight

$146
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Fargo to Chicago O'Hare Airport

FAQs for booking flights from North Dakota to Illinois

  • How does KAYAK find such low prices on flights from North Dakota to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from North Dakota to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from North Dakota to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from North Dakota to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from North Dakota to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from North Dakota to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from North Dakota to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from North Dakota to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines fly most frequently to Illinois?

    North Dakota and Illinois are connected by different airlines. The airlines that fly that route the most regularly are American Airlines (55 flights per week), United Airlines (47 flights per week), and Alaska Airlines (41 flights per week).

  • How many airports are there in Illinois?

    There are 12 airports in Illinois. The busiest airport is Chicago O'Hare Airport (ORD), with 92% of all flights arriving there.

  • Which is the cheapest airport to fly into in Illinois?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Chicago O'Hare Intl Airport (ORD), with an average flight price of $458.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Saturday where round-trip tickets can be as cheap as $478. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $699 on average.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $492 on average. Morning departures are around 6% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $565.

  • What is the cheapest flight to Illinois?

    The cheapest ticket to Illinois from North Dakota found in the last 5 days was to Chicago O'Hare Intl Airport, at $348 round-trip. The most popular route is Bismarck (BIS) to Chicago O'Hare Intl Airport (ORD) and the cheapest round-trip airline ticket found on this route in the last 5 days was $348.

  • What is the cheapest month to fly from North Dakota to Illinois?

    The cheapest month for flights from North Dakota to Illinois is August, when tickets cost $218 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is $444 and $384 respectively.

  • How far in advance should I book a flight from North Dakota to Illinois?

    To get a below average price on the flight from North Dakota to Illinois, you should book around 7 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

  • How many cities have direct flights to Illinois?

    From North Dakota, there are direct flights to Illinois from 2 cities. The city with the most direct flights is Fargo, with 264 direct flights each week.

  • How many direct flights to Illinois are there each day?

    There are around 42 direct flights from within North Dakota to Illinois every day. Most flights (43%) depart in the morning.

  • How many direct flights to Illinois are there each week?

    Each week there are around 294 direct flights from within North Dakota to Illinois. The most common day for departures is Monday, with 15% of flights taking off on this day.

  • How long is the flight to Illinois?

    An average nonstop flight from North Dakota to Illinois takes 6h 46m, covering a distance of 728 miles. The shortest route is Fargo (FAR) to Chicago O'Hare Intl Airport (ORD) with an average flight time of 2h 08m.

  • How many long-haul flights are there to Illinois each week?

    There are not any long-haul (6-12 hour flight duration) or medium-haul (3-6 hour flight duration) flights to Illinois. Instead, there are 294 short-haul flights (up to 3 hour flight duration), with the most arriving from Fargo.

Reviews of the top 3 airlines serving from North Dakota to Illinois

 
Need help choosing which airline to fly with from North Dakota to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8692 reviews
7.2Food
7.8Comfort
8.5Crew
7.8Entertainment
8.1Boarding
Airline reviews

Requested an aisle seat at the gate and got it. The staff so friendly

10.0 ExcellentMark, Oct 2026
Read more Delta reviews

Requested an aisle seat at the gate and got it. The staff so friendly

Flight was very delayed so I was able to get on an earlier flight via stand-by. Crew communicated effectively around delay and worked to make customers comfortable. Wifi was ok, streaming TV was great. App functionality broke down once I was moved to stand-by on earlier flight.

Sat in the tarmac at O’Hare for 65 minutes. This is a regular occurrence for delta at O’Hare

Delta was fine though my flight was delayed 4 hours into LGA and my return into ORD involved a taxi of 1+ hour to the gate

It was as good as it could be. Flying is not a pleasant experience these days.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

Got on the plane and sat there for an hour before departure.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Cramped seating for me. Luckily it wasn’t a long flight

Flight and crew were great. Need more legroom and do not allow seats to recline.

We arrived to Chicago nearly 30 minutes early, which was great, but then was on the ground for over an hour because the gate was not available. The issue I had was the pilot estimation was frustrating. First he said he was informed it would be 20 minutes but he said "it will probably be more like 10 minutes". After 30 minutes he came back on the comm and said it would be another 10 minutes, maybe 20. I understand he was only giving estimates but he also layered in his own gut feel. We were never told why we didn't have a gate even after our scheduled entry.

Just sat on the run way after we arrived early

Stored my cloth purse under seat in front off me as instructed. When I retrieved it, half of it was soaked, along with everything inside it. I don’t really know how that could have been prevented because the area did not look wet, but I was not happy about it.

Phx - ORD was nice 737 with starlink and the ORD - grr was ancient bare bones airbus with not even a power port lol

It was easy to board, and the staff was friendly and helpful. What could have been better is that I shouldn't have to pay extra for a seat that doesn't recline.

Was on the plane sitting longer than the actual flight in air was, boarded at 5:45p and didn't take off until 6:50p flight was only about 30 minutes long. Just was poor experience will booking more with American Airlines.

The couple in front of me were constantly talking over the announcement from the captain and this was annoying me.

The first leg of my trip the Republic Airlines aircraft was late due to a maintenance problem. Then I called United to reroute. Their reroute airline lost my bag but found it and returned it two days later. Hopefully my return trip home is better.

There was not even a single time where united airlines from lga has made to the gate straight , 1 hr if delay today

It was close to its perfect the flake could be took off early, landed early, didn’t have to wait for my daughter stroller luggage came out quick, very efficient, very good flight

The amount of gate changes and delays is completely unacceptable. This has happened on 3 of 4 trips between Chicago and Dallas in 2026.

The delay update was very late. I had a stressful short connection and RAN through Chicago to get to the next flight, only to find the plane wasn't at the gate yet an nobody was boarding. I would not have had to run if the delay was updated earlier.

No flight delays. No need to rebook to make connections. Enjoyed second leg of flight on Iberia.

Same the delay was not ideal and the credits to move flights was not sufficient

No food on 4.5 hour flight, wi-fi did not work. Terrible experience for a long haul flight.

The crew were diligent about ensuring that our pet dog remained in his carrier for the entire flight, as is their mandate. I wish that mandate was changed so that our poor, scared pets can be comforted during a flight, whereas service animals get to stay out and about for the whole flight. Thank you.

first leg from san diego to chicago, only had cookies for snack. 1 flavor of sparkling water chicago to washington dc had option of cookies, pretzels, or gold fish. had 2 flavors of sparkling water. 2nd flight better however the best part was there was no delays!!! Got to chicago and washington dc early. That was wonderful!!!!

Business class flight attendant was very good. But our flight was delayed two hours for a “mechanical” bathroom issue that literally took 5 minutes to fix. Our plane landed early from its previous flight but still waited for a mechanic to show up to fix an obvious minor issue for almost three hours. This caused us to miss our connecting flight. They put us up in a Days Inn that was 17 miles away from the airport that took a half hour of driving just to get to and this was at 11pm at night. Then when we finally got back on a plane after a full day delay they left our luggage back in the airport. This was an international flight, so no luggage or belongings after flying 8 hours to a different country. We will NEVER fly American Airlines again.

The flight was fine but the 8 hour delay in Chicago was awful - 5 gate changes and repeated delays without an explanation. No vouchers. Nothing.

More options for your flight to Illinois

Complete your trip to Illinois with a hotel stay or car rental