$256 Find Cheap Flights from Flagstaff 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 Flagstaff to Illinois departing on 1/5. 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 Flagstaff 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 Flagstaff to Illinois, as well as popular online travel agencies
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Flight Deals

Book Cheap Flagstaff 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 Flagstaff 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 Flagstaff to Illinois

Fri, Jan 23 - Sun, Jan 25
American Airlines Logo
6:05 pm - 12:23 am
FLG
-
ORD
5h 18m1 stop
American Airlines Logo
6:54 am - 12:48 pm
ORD
-
FLG
6h 54m1 stop
$356American Airlines
Fri, Jan 23 - Sun, Jan 25
American Airlines Logo
12:38 pm - 10:18 pm
FLG
-
ORD
8h 40m2 stops
American Airlines Logo
6:54 am - 12:48 pm
ORD
-
FLG
6h 54m1 stop
$366American Airlines
Fri, Jan 23 - Sun, Jan 25
American Airlines Logo
12:38 pm - 11:44 pm
FLG
-
ORD
10h 06m2 stops
American Airlines Logo
5:05 am - 12:08 pm
ORD
-
FLG
8h 03m2 stops
$371American Airlines
Fri, Jan 30 - Wed, Feb 4
American Airlines Logo
1:30 pm - 10:18 pm
FLG
-
ORD
7h 48m1 stop
American Airlines Logo
5:00 am - 12:08 pm
ORD
-
FLG
8h 08m1 stop
$406American Airlines
Fri, Jan 30 - Wed, Feb 4
American Airlines Logo
12:38 pm - 11:44 pm
FLG
-
ORD
10h 06m2 stops
American Airlines Logo
12:10 pm - 5:31 pm
ORD
-
FLG
6h 21m1 stop
$416American Airlines
Fri, Jan 30 - Wed, Feb 4
American Airlines Logo
12:38 pm - 11:44 pm
FLG
-
ORD
10h 06m2 stops
American Airlines Logo
10:19 am - 5:31 pm
ORD
-
FLG
8h 12m2 stops
$421American Airlines
Fri, Jan 2 - Fri, Jan 9
American Airlines Logo
4:05 pm - 12:16 am
FLG
-
ORD
7h 11m1 stop
American Airlines Logo
7:05 am - 12:08 pm
ORD
-
FLG
6h 03m1 stop
$646American Airlines
Fri, Jan 2 - Fri, Jan 9
American Airlines Logo
4:05 pm - 12:16 am
FLG
-
ORD
7h 11m1 stop
American Airlines Logo
9:11 am - 5:31 pm
ORD
-
FLG
9h 20m2 stops
$656American Airlines
Fri, Jan 2 - Fri, Jan 9
American Airlines Logo
1:10 pm - 11:15 pm
FLG
-
ORD
9h 05m2 stops
American Airlines Logo
10:19 am - 5:31 pm
ORD
-
FLG
8h 12m2 stops
$681American Airlines
Tue, Dec 23 - Mon, Dec 29
American Airlines Logo
7:39 am - 2:24 pm
FLG
-
ORD
5h 45m1 stop
American Airlines Logo
5:00 am - 9:49 am
ORD
-
FLG
5h 49m1 stop
$696American Airlines
Booking Insights

KAYAK's insights & trends for Flagstaff to Illinois flights

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

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

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

Your flight ticket price will generally be cheaper if you fly to Illinois on a Thursday and more expensive on a Tuesday. On your return trip to Flagstaff, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

Find deals

Good to know

Cheapest flight$256
Flight from Flagstaff to Chicago

FAQs - booking Illinois flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Flagstaff 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 Flagstaff 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 Flagstaff 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 Flagstaff 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 Flagstaff 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 morning, when round-trip flights cost $603 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $603.

Reviews of the top airline flying from Flagstaff to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Flagstaff 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 Flagstaff 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.
7.2
American AirlinesOverall score based on 11042 reviews
8.0Crew
6.9Entertainment
7.2Comfort
7.5Boarding
6.5Food
Airline reviews

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

10.0 ExcellentJolene, Dec 2025
FLG - DFW
Read more American Airlines reviews

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

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.

Delayed delayed delayed and no offer for food or vouchers

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

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

Information on your arrival and departure airports

Flagstaff (FLG)