$381 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 7/28. 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

Wed, Jun 24 - Sat, Jun 27
American Airlines Logo
1:48 pm - 9:19 pm
FLG
-
ORD
5h 31m
1 stop
American Airlines Logo
5:00 am - 11:55 am
ORD
-
FLG
8h 55m
1 stop
$498American Airlines
Wed, Jun 24 - Sat, Jun 27
American Airlines Logo
1:48 pm - 12:39 am
FLG
-
ORD
8h 51m
2 stops
American Airlines Logo
5:00 am - 11:13 am
ORD
-
FLG
8h 13m
1 stop
$508American Airlines
Thu, Jul 23 - Wed, Jul 29
American Airlines Logo
12:35 pm - 10:15 pm
FLG
-
ORD
7h 40m
1 stop
American Airlines Logo
2:25 pm - 8:04 pm
ORD
-
FLG
7h 39m
1 stop
$518American Airlines
Thu, Jul 23 - Wed, Jul 29
American Airlines Logo
12:35 pm - 9:22 pm
FLG
-
ORD
6h 47m
1 stop
American Airlines Logo
5:00 am - 11:14 am
ORD
-
FLG
8h 14m
2 stops
$528American Airlines
Mon, Jul 6 - Fri, Jul 31
American Airlines Logo
1:50 pm - 9:30 pm
FLG
-
ORD
5h 40m
1 stop
American Airlines Logo
7:00 am - 11:54 am
ORD
-
FLG
6h 54m
1 stop
$538American Airlines
Tue, Aug 11 - Sat, Aug 15
American Airlines Logo
12:36 pm - 10:07 pm
FLG
-
ORD
7h 31m
1 stop
American Airlines Logo
5:00 am - 11:11 am
ORD
-
FLG
8h 11m
2 stops
$547American Airlines
Mon, Jul 6 - Fri, Jul 31
American Airlines Logo
1:50 pm - 12:43 am
FLG
-
ORD
8h 53m
2 stops
American Airlines Logo
7:00 am - 11:54 am
ORD
-
FLG
6h 54m
1 stop
$548American Airlines
Wed, Jun 24 - Sat, Jun 27
American Airlines Logo
1:48 pm - 12:39 am
FLG
-
ORD
8h 51m
2 stops
American Airlines Logo
10:50 am - 7:56 pm
ORD
-
FLG
11h 06m
2 stops
$552American Airlines
Fri, Aug 14 - Tue, Aug 18
American Airlines Logo
11:42 am - 10:00 pm
FLG
-
ORD
8h 18m
1 stop
American Airlines Logo
5:00 am - 11:11 am
ORD
-
FLG
8h 11m
2 stops
$567American Airlines
Wed, May 13 - Sat, May 16
American Airlines Logo
7:52 pm - 5:37 am
FLG
-
ORD
7h 45m
1 stop
American Airlines Logo
3:00 pm - 6:42 pm
ORD
-
FLG
5h 42m
1 stop
$576American 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.

How much is a round-trip flight from Flagstaff to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Flagstaff to Illinois departing in June.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Flagstaff 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 Flagstaff to Illinois is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are October and March, when the average cost of round-trip tickets is $905 and $893 respectively.

Good to know

Low seasonJanuary
Cheapest flight$381
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 14% increase in price.
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.

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.
7.1
American AirlinesOverall score based on 11681 reviews
7.5Boarding
7.2Comfort
7.9Crew
6.9Entertainment
6.4Food
Airline reviews

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

10.0 ExcellentDeepa, Apr 2026
DFW - ORD
Read more American Airlines reviews

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

The new planes (American Eagle) are beautiful and especially comfortable. The flight attendants are consistently professional and courteous. And, while it may seem inconsequential, the new liquid tube of coffee creamer—in contrast to the powdered coffee creamer—makes all the difference in a cup of coffee.

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Crew at the gate was very crabby and not at all polite. The plane was very hot the entire flight. And the seat cushion was very worn out.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Delays with no explanation. It could have been handled better.

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

Information on your arrival and departure airports