Question 1

What are the cheapest airlines to fly from Illinois to Tempe one-way?

Accepted Answer

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $32. Allegiant Air flights start at $71 while deals on JetBlue start at $77 one-way.

Question 2

What is the cheapest day to fly from Illinois to Tempe?

Accepted Answer

Travelers seeking maximum savings on their Illinois to Tempe flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 3

Weekly flight availability from Illinois to Tempe

Accepted Answer

The most flights from USIL to TM9 are scheduled on a Sunday (61 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (46 on average).

Question 4

E

Accepted Answer

In terms of precipitation, rainfall in Tempe ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Tempe when rainfall is around 0.0 in.

Question 5

E

Accepted Answer

If weather is an important factor for your trip to Tempe, 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 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

Question 6

What are the most popular routes from Illinois to Tempe?

Accepted Answer

Most travelers choose Chicago O'Hare Intl - Phoenix Sky Harbor Intl, Chicago Midway - Phoenix Sky Harbor Intl or Lambert-St Louis - Phoenix Sky Harbor Intl when deciding on the best route from Illinois to Tempe.

Question 7

What are the cheapest flights from Illinois to Tempe?

Accepted Answer

While on average a flight from Illinois to Tempe is generally $809, our data shows the cheapest flight currently is $120. When looking at the most popular route, (Chicago O'Hare Intl - Phoenix Sky Harbor Intl), you can expect to pay $192 for that flight.

Question 8

What are the most reliable airlines from Illinois to Tempe?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Illinois to Tempe consider choosing Air Canada (74%), Brussels Airlines (73%) or United Airlines (70%) as they are the most reliable in getting you off to your destination on time.

Question 9

What are the most popular airlines that fly from Illinois to Tempe?

Accepted Answer

Before booking your flight from Illinois to Tempe check out the most popular airlines for this route: Frontier, American Airlines or United Airlines.

Question 10

What is the cheapest time of day to fly from IL to TM9?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from Illinois to Tempe at noon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the morning.

Question 11

Can I find deals for flights from Illinois to Tempe that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Illinois to Tempe flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 12

How can I find direct flights from Illinois to Tempe?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Tempe.

Question 13

Can I find deals for business class flights from Illinois to Tempe?

Accepted Answer

Yes. Cheapflights offers flight deals from Illinois to Tempe by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Popular in	September
Cheapest in	January
Average price	$368

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$63	Average$226	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$108	Average$274	FlexibilityNo cancel fee	On-timeN/A
Allegiant Air	Cheapest$118	Average$228	FlexibilityNo cancel fee	On-time88%
JetBlue	Cheapest$188	Average$306	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$190	Average$397	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$196	Average$426	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$217	Average$343	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$231	Average$269	FlexibilityNo cancel fee	On-time75%

Cheap flights from Illinois to Tempe, AZ

Find cheap flights from Illinois to Tempe with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Illinois to Tempe

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from IL to TM9?

A simple way to save on the total cost of your ticket is to fly from Illinois to Tempe at noon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Illinois to Tempe?

Travelers seeking maximum savings on their Illinois to Tempe flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Illinois to Tempe

The most flights from USIL to TM9 are scheduled on a Sunday (61 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (46 on average).

Related info for your journey

What are the cheapest airlines to fly from Illinois to Tempe one-way?

What are the most popular routes from Illinois to Tempe?

What are the most reliable airlines from Illinois to Tempe?

What are the cheapest flights from Illinois to Tempe?

Can I find deals for flights from Illinois to Tempe that include hotel bookings?

How can I find direct flights from Illinois to Tempe?

Can I find deals for business class flights from Illinois to Tempe?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Tempe

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Tempe by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Illinois to Tempe by cabin class

Find flights from Illinois to Tempe, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Tempe flights

Browse other Illinois and Tempe flight options. Last updated on September 29, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Find a return flight route from Tempe

Find the right flight back to Illinois after your stay in Tempe

Illinois to Tempe flights

Consider these flights traveling from Illinois to Tempe.

Top 8 airlines flying from Illinois to Tempe

100% Free

Book with Flexibility

Travel Smart