Cheap flights from Illinois to Phoenix from $53
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Phoenix departing on 10/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Spirit Airlines flights from Illinois to Phoenix Sky Harbor Intl Airport
Our best Spirit Airlines deals on Illinois to Phoenix Sky Harbor Intl Airport flight tickets
Frontier flights from Illinois to Phoenix Sky Harbor Intl Airport
Our best Frontier deals on Illinois to Phoenix Sky Harbor Intl Airport flight tickets
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How to get the cheapest flight ticket from Illinois to Phoenix Sky Harbor Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Phoenix Sky Harbor Intl Airport?
In general, September is the cheapest month to fly from Illinois to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $197. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Illinois during the month August is also very affordable. Most momondo users find prices during this month for around $209.
What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?
On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Illinois is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $300. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $386. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.
What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?
In the evening is the cheapest time of day to fly from Illinois to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $273. Flying to Phoenix Sky Harbor Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $347. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Illinois to Phoenix Sky Harbor Intl flight route?
Fly from Chicago O'Hare Intl to Phoenix Sky Harbor Intl for the best Illinois - Phoenix Sky Harbor Intl flight prices
How far in advance should I book a flight to Phoenix Sky Harbor Intl Airport?
You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $286 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Illinois for as low as $248 on momondo.
What cabin class options are available on Illinois to Phoenix Sky Harbor Intl flights?
There are 4 cabin classes available to choose from on Illinois to Phoenix Sky Harbor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Illinois to Phoenix Sky Harbor Intl?
Frontier and Spirit Airlines are the most popular carriers operating from Illinois to Phoenix Sky Harbor Intl
What airlines fly to Phoenix Sky Harbor Intl Airport?
American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Illinois according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 8 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Illinois to Phoenix Sky Harbor Intl Airport on average per day?
As of July 2025, there are 34 flights per day flying from Illinois to Phoenix Sky Harbor Intl Airport. The most common time of day flights depart is 8:00PM, with 43% of flights taking off in the evening.
How many flights depart from Illinois to Phoenix Sky Harbor Intl Airport on average per week?
As of July 2025, 238 flights take off from Illinois and land in Phoenix Sky Harbor Intl Airport each week. The most common flight departure day for this route is Thu, with 31% of weekly flights taking off on this day.
Cheap Illinois to Phoenix Sky Harbor Intl Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Illinois to Phoenix Sky Harbor Intl Airport
When did momondo last update prices for flights from Illinois to Phoenix Sky Harbor Intl Airport?
Prices for flights from Illinois to Phoenix Sky Harbor Intl Airport refresh daily.
How many operators does momondo search for flights from Illinois to Phoenix Sky Harbor Intl Airport?
As of July 2025, there are 8 operators available to choose from for flights from Illinois to Phoenix Sky Harbor Intl Airport.
How old do you have to be to fly from Illinois to Phoenix Sky Harbor Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Phoenix Sky Harbor Intl Airport.
What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?
The required travel and health documents for your Phoenix Sky Harbor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Phoenix Sky Harbor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Phoenix Sky Harbor Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Phoenix Sky Harbor Intl Airport is Boeing 737-800, representing 17.67% of all bookings. The subsequent popular models are Airbus A321neo at 11.96%, Boeing 737-900 at 11.31%, and Airbus A321-100/200 at 11.06%.
Best airlines flying from Illinois to Phoenix Sky Harbor Intl Airport
Compare and see reviews for airlines that fly from Illinois to Phoenix Sky Harbor Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $68 | Free Cancellation | Rating 5.9 3,284 reviews | |||
| PriceFrom $98 | Free Cancellation | Rating 6.3 8,094 reviews | |||
| PriceFrom $126 | Free Cancellation | Rating 7.2 709 reviews | |||
| PriceFrom $154 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $175 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 7.4 8,861 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 8.0 7,983 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 8.0 4,270 reviews |
Traveling to a place near Phoenix?
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Why should I use momondo to find a flight deal from Illinois to Phoenix?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Phoenix for you.
Can I find flights from Illinois to Phoenix with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Phoenix from Illinois with this policy.
How can momondo help me find flights from Illinois to Phoenix?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Phoenix from Illinois.
I’m not ready to book a flight from Illinois to Phoenix right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Phoenix, momondo offers a useful price alert feature which will track prices for flights to Phoenix from Illinois and alert you when they change.