$134 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 1/18. 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

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

Sat, Apr 4 - Wed, Apr 8
Delta Logo
1:10 pm - 6:08 pmBIS-MDW
4h 58m1 stop
Delta Logo
2:00 pm - 8:07 pmMDW-BIS
6h 07m1 stop
$219Delta
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Sat, Apr 4 - Wed, Apr 8
Delta Logo
5:30 pm - 9:56 pmBIS-ORD
4h 26m1 stop
Delta Logo
6:00 am - 12:47 pmORD-BIS
6h 47m1 stop
$219Delta
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Sat, Apr 4 - Wed, Apr 8
Delta Logo
11:30 am - 8:38 pmBIS-ORD
9h 08m2 stops
Delta Logo
6:00 am - 12:47 pmORD-BIS
6h 47m1 stop
$224Delta
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Tue, Nov 4 - Sat, Nov 8
American Airlines Logo
12:55 pm - 3:27 pmBIS-ORD
2h 32mnonstop
American Airlines Logo
9:40 am - 12:10 pmORD-BIS
2h 30mnonstop
$247American Airlines
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Sat, Apr 4 - Wed, Apr 8
Delta Logo
1:10 pm - 4:50 pmBIS-STL
3h 40m1 stop
Delta Logo
6:30 am - 10:56 amSTL-BIS
4h 26m1 stop
$249Delta
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Tue, Nov 4 - Sat, Nov 8
American Airlines Logo
3:02 pm - 11:37 pmBIS-ORD
8h 35m1 stop
American Airlines Logo
9:40 am - 12:10 pmORD-BIS
2h 30mnonstop
$257American Airlines
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Tue, Nov 4 - Sat, Nov 8
Delta Logo
5:42 pm - 11:06 pmBIS-STL
5h 24m1 stop
Delta Logo
4:45 pm - 11:16 pmSTL-BIS
6h 31m1 stop
$259Delta
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Thu, Dec 11 - Tue, Dec 16
Multiple Airlines Logo
11:36 am - 11:42 amBIS-ORD
24h 06m1 stop
Multiple Airlines Logo
8:52 pm - 10:46 amORD-BIS
37h 54m2 stops
$374Multiple Airlines
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Fri, Feb 13 - Fri, Feb 20
United Airlines Logo
1:43 pm - 7:40 pmBIS-ORD
5h 57m1 stop
United Airlines Logo
2:02 pm - 9:58 pmORD-BIS
7h 56m1 stop
$515United Airlines
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Fri, Nov 7 - Sun, Nov 9
United Airlines Logo
5:15 pm - 11:59 pmBIS-ORD
6h 44m1 stop
United Airlines Logo
9:38 pm - 11:39 pmORD-BIS
26h 01m2 stops
$554United Airlines
Find Deal
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 $259 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 $259.

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 $303, 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 November and October, when the average cost of round-trip tickets is $442 and $373 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 Mondays.

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 33% 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 10% 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 $431.

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 $232 one-way - $378 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 7978 reviews
8.5Crew
8.2Boarding
7.9Entertainment
7.3Food
7.9Comfort
Airline reviews

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

6.0 GoodDavid, Oct 2025LAX - JFK
Read more Delta reviews

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

On time flight. Seat comfort could be better in the Comfort section.

My issue was with TSA agents for delta airlines. My luggage got flagged. The agent was going thru another persons first. He took 20 min to go thru hers. I asked them to bring mine closer so I could sit down . They said you can go sit it will be fine. I said I am supposed to keep my eyes on my bags at all times. The agent was meticulously unwrapping 2 gifts that the lady had and then tried to re warp it. He was trying to be kind i get it but 20 min for me to stand watching him do that was ridiculous. It was 6 am and there were a ton of travelers. Mine was flagged for some air packed tea that I bought in Turkey. My previous delta flight and 2 others before didn’t flag it. Consistency would be nice. Also on the flight the window shades were down for take off and landing - I thought that was very odd I thought they had to remain open for take off and landing.

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.

Pretty good. The food was just mediocre, the boarding and crew were good.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

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

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