$135 Find Cheap Flights from Bismarck to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Bismarck to Illinois departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bismarck to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bismarck to Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Bismarck to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bismarck to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bismarck to Illinois

Wed, Feb 25 - Sat, Feb 28
Delta Logo
5:00 am - 1:22 pm
BIS
-
ORD
8h 22m2 stops
Delta Logo
6:51 pm - 11:22 pm
ORD
-
BIS
4h 31m1 stop
$240Delta
Wed, Feb 25 - Sat, Feb 28
Delta Logo
5:00 am - 1:22 pm
BIS
-
ORD
8h 22m2 stops
Delta Logo
2:03 pm - 11:22 pm
ORD
-
BIS
9h 19m2 stops
$245Delta
Fri, Jan 16 - Mon, Jan 19
Delta Logo
5:27 pm - 11:25 pm
BIS
-
STL
5h 58m1 stop
Delta Logo
6:10 am - 10:41 am
STL
-
BIS
4h 31m1 stop
$249Delta
Sat, May 23 - Tue, May 26
American Airlines Logo
2:04 pm - 4:10 pm
BIS
-
ORD
2h 06mnonstop
American Airlines Logo
9:40 am - 12:01 pm
ORD
-
BIS
2h 21mnonstop
$303American Airlines
Sat, May 23 - Tue, May 26
American Airlines Logo
3:12 pm - 10:48 pm
BIS
-
ORD
7h 36m1 stop
American Airlines Logo
9:40 am - 12:01 pm
ORD
-
BIS
2h 21mnonstop
$333American Airlines
Sat, Jan 10 - Sun, Jan 18
American Airlines Logo
2:58 pm - 10:18 pm
BIS
-
ORD
7h 20m1 stop
American Airlines Logo
6:54 am - 2:24 pm
ORD
-
BIS
7h 30m1 stop
$380American Airlines
Sat, Jan 10 - Sun, Jan 18
American Airlines Logo
2:58 pm - 10:18 pm
BIS
-
ORD
7h 20m1 stop
American Airlines Logo
10:10 am - 10:27 pm
ORD
-
BIS
12h 17m2 stops
$385American Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
9:00 am - 4:55 pm
BIS
-
STL
7h 55m1 stop
United Airlines Logo
8:45 am - 4:32 pm
STL
-
BIS
7h 47m1 stop
$443United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
9:00 am - 4:55 pm
BIS
-
STL
7h 55m1 stop
United Airlines Logo
12:44 pm - 8:38 pm
STL
-
BIS
31h 54m2 stops
$521United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
9:00 am - 4:55 pm
BIS
-
STL
7h 55m1 stop
United Airlines Logo
6:00 am - 4:32 pm
STL
-
BIS
34h 32m3 stops
$593United Airlines
Booking Insights

KAYAK's insights & trends for Bismarck to Illinois flights

Get data-powered insights and trends into flights from Bismarck to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Bismarck to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Bismarck found in the last 72 hours was to Chicago, at $248 round-trip. The most popular route is from Bismarck (BIS) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $248.

Can I save money by flying with a layover from Bismarck to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $262, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Bismarck to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bismarck to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Bismarck to Illinois is February, when tickets cost $248 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $432 and $348 respectively.

What’s the cheapest day of the week to fly from Bismarck to Illinois?

The average price of all round-trip flights from Bismarck to Illinois clicked on KAYAK for each day over the last 12 months.

When flying from Bismarck to Illinois, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to Bismarck, you’ll find the best rates on Wednesdays and the most expensive ones on Thursdays.

Good to know

Low seasonAugust
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 7% increase in price.

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Bismarck 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 Bismarck to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Bismarck 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 Bismarck 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 Bismarck 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 Bismarck 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 Bismarck to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • 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 $385 on average. Morning departures are around 8% 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 $441.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Bismarck to the following destinations at these prices or less: Chicago $357 one-way - $363 round-trip

Reviews of the top airlines flying from Bismarck to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Bismarck to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Bismarck 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.
7.9
DeltaOverall score based on 8013 reviews
8.1Boarding
7.3Food
7.9Comfort
7.9Entertainment
8.5Crew
Airline reviews

The food is terrible. The staff is wonderful. Comfort is good.

10.0 ExcellentRonda, Dec 2025
JAX - JFK
Read more Delta reviews

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

Everything you need to know for your flight from Bismarck to Illinois

Information on your arrival and departure airports