$305+ Cheap flights from Illinois to Flagstaff (FLG)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Flagstaff with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Flagstaff
Keep the following information in mind while searching for Illinois to Flagstaff flight deals. Data was last updated March 28, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $386 (American Airlines) |
One-way from | $305 (American Airlines) |
Popular in | April |
Cheapest in | September |
Average price | $695 |
Find flight deals from Illinois to Flagstaff
Cheapest flights from Illinois to FlagstaffExplore the most affordable flight options available from Illinois to Flagstaff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.
Explore the most affordable flight options available from Illinois to Flagstaff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.
This American Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Flagstaff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Illinois to Flagstaff that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisFlagstaff
STL - FLG
STLFLG
Lambert-St Louis
Mon 4/28
6:20 pm-10:44 pm
1 stop6h 24m
Flagstaff Pulliam
Thu 5/1
10:50 am-5:23 pm
1 stop4h 33m
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Tue 5/27
6:00 am-9:57 am
1 stop5h 57m
Flagstaff Pulliam
Sat 5/31
5:20 am-2:26 pm
1 stop7h 06m
ChicagoFlagstaff
ORD - FLG
ORDFLG
Chicago O'Hare Intl
Sun 4/6
6:50 pm-10:44 pm
1 stop5h 54m
St. LouisFlagstaff
STL - FLG
STLFLG
Lambert-St Louis
Wed 4/9
7:04 am-12:01 pm
1 stop6h 57m
Best time to book a flight from Illinois to Flagstaff
Have a flexible travel schedule? Discover the best time to fly to Flagstaff from Illinois with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Flagstaff
What is the cheapest month to book a flight from Illinois to Flagstaff?
Currently, January is the cheapest month in which you can book a flight from Illinois to Flagstaff (average of $567). Flying from Illinois to Flagstaff in March is currently the most expensive (average of $661). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to FLG?
Find hourly flight availability from Illinois to Flagstaff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Flagstaff as you normally would.
Rainfall in Flagstaff by month
Plan your trip to Flagstaff by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Flagstaff ranges from 0.4 - 2.7 inches per month. August is typically the wettest month, when rainfall can reach 2.7 in. June is typically the driest time to visit Flagstaff when rainfall is around 0.4 in.
Temperature in Flagstaff by month
Plan your trip to Flagstaff by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Flagstaff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Reviews of airlines servicing Flagstaff
Get insights into the airlines that provide service to Flagstaff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Flagstaff. Reviews last updated March 28, 2025.
Entertainment
Overall
Food
Comfort
Boarding
Crew
Reviews
sheila,Mar 2025
DFW - MSP
Entertainment
Overall
Food
Comfort
Boarding
Crew
Reviews
sheila,Mar 2025
DFW - MSP
Related info for your journey
Find useful and relevant information for your journey from Illinois to Flagstaff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Illinois to Flagstaff
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Illinois to Flagstaff
Discover the top airline that operate flights from Illinois to Flagstaff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$501 | Average$636 | FlexibilityNo cancel fee | On-time71% |