How long is the flight from Idaho to Chicago Greater Rockford Airport?

For as low as $436, Allegiant Air can have you in Chicago Greater Rockford Airport from Idaho in 15h 32m. The distance between Idaho and Chicago Greater Rockford Airport is about 1431 mi.

In terms of precipitation, rainfall in Chicago Greater Rockford Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago Greater Rockford Airport when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago Greater Rockford Airport, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

How far in advance should I book a flight from Idaho to Chicago Greater Rockford Airport?

Travelers have found it’s best to book a flight 59 days in advance to save up to 182% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 59 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Idaho to Chicago Greater Rockford Airport 1-2 weeks in advance for as low as $370, or $424 for flights within the next 24 hours.

What is the cheapest month to fly from Idaho to Chicago Greater Rockford Airport?

January is one of the best times of the year to fly to Chicago Greater Rockford Airport from Idaho. Prices for January average $377 per person but you can even find prices for as low as $206. The most expensive prices can be found in the month of December. Opting for a January flight can save you 28% on your journey compared to booking in December

What is the cheapest time of day to fly from ID to RFD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Chicago Greater Rockford Airport as you normally would.

Can I find deals for flights from Idaho to Rockford that include hotel bookings?

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

How can I find direct flights from Idaho to Rockford?

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

Can I find deals for business class flights from Idaho to Rockford?

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

$190+ Cheap Flights from Idaho to Chicago Greater Rockford Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Idaho to Rockford 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 Idaho to Rockford

Round-trip from	$436 (Kiwi.com)
One-way from	$190 (Kiwi.com)
Popular in	December
Cheapest in	January
Average price	$397

From Idaho to Chicago Greater Rockford

Search Deals

One-way flight from Idaho to Chicago Greater Rockford

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Idaho to Rockford

Cheapest flights from Idaho to Rockford
Explore the most affordable flight options available from Idaho to Rockford. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 28, 2025.

Fri 10/106:38 pmGEG - RFD

1 stop15h 32mAllegiant Air

Sun 10/121:44 pmRFD - GEG

1 stop8h 34mAllegiant Air

Deal found 8/26

$436

Best flights from Idaho to Rockford
Discover carefully curated flight deals from Idaho to Rockford that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 28, 2025.

Fri 10/106:38 pmGEG - RFD

1 stop15h 32mAllegiant Air

Sun 10/121:44 pmRFD - GEG

1 stop8h 34mAllegiant Air

Deal found 8/26

$436

One-way flights from Idaho to Rockford
Search for one-way flight options from Idaho to Rockford. Find affordable one-way fares based on user searches. Data last updated August 28, 2025.

Thu 9/119:06 pmGEG - RFD

3 stops15h 19mMultiple Airlines

Deal found 8/28

$190

Thu 12/119:13 pmGEG - RFD

2 stops18h 53mMultiple Airlines

Deal found 8/28

$283

Fri 9/1211:53 amGEG - RFD

3 stops53h 01mMultiple Airlines

Deal found 8/28

$309

Thu 12/119:13 pmGEG - RFD

3 stops37h 35mAllegiant Air

Deal found 8/28

$404

Wed 10/228:54 pmGEG - RFD

3 stops43h 59mMultiple Airlines

Deal found 8/28

$467

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho to Chicago Greater Rockford Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SpokaneChicago

GEG - RFD

GEGRFD

Spokane

Fri 10/10

6:38 pm-12:10 pm

1 stop15h 32m

Chicago Greater Rockford

Sun 10/12

1:44 pm-8:18 pm

1 stop8h 34m

$436

SpokaneChicago

GEG - RFD

GEGRFD

Spokane

Thu 9/11

9:06 pm-2:25 pm

3 stops15h 19m

$190

SpokaneChicago

GEG - RFD

GEGRFD

Spokane

Thu 12/11

9:13 pm-6:06 pm

2 stops18h 53m

$283

SpokaneChicago

GEG - RFD

GEGRFD

Spokane

Fri 9/12

11:53 am-6:54 pm

3 stops53h 01m

$309

SpokaneChicago

GEG - RFD

GEGRFD

Spokane

Thu 12/11

9:13 pm-12:48 pm

3 stops37h 35m

$404

SpokaneChicago

GEG - RFD

GEGRFD

Spokane

Wed 10/22

8:54 pm-6:53 pm

3 stops43h 59m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/28

Best time to book a flight from Idaho to Rockford

Have a flexible travel schedule? Discover the best time to fly to Rockford from Idaho with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Chicago Greater Rockford Airport

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Idaho to Chicago Greater Rockford Airport?
For as low as $436, Allegiant Air can have you in Chicago Greater Rockford Airport from Idaho in 15h 32m. The distance between Idaho and Chicago Greater Rockford Airport is about 1431 mi.
Can I find deals for flights from Idaho to Rockford that include hotel bookings?
Yes. In addition to deals on Idaho to Rockford flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Idaho to Rockford?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Rockford.
Can I find deals for business class flights from Idaho to Rockford?
Yes. Cheapflights offers flight deals from Idaho to Rockford by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Merrillville

Lansing

Hammond

Benton Harbor

Porter

Chesterton

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Idaho to Rockford

John F Kennedy Intl to O'Hare Intl flights

Dallas/Fort Worth to O'Hare Intl flights

LaGuardia to O'Hare Intl flights

Newark to O'Hare Intl flights

Los Angeles to O'Hare Intl flights

Dulles Intl to O'Hare Intl flights

Seattle to O'Hare Intl flights

San Francisco to O'Hare Intl flights

Atlanta to O'Hare Intl flights

Reagan-National to O'Hare Intl flights

Ontario to O'Hare Intl flights

Boston to O'Hare Intl flights

Philadelphia to O'Hare Intl flights

Denver to O'Hare Intl flights

Baltimore to O'Hare Intl flights

John F Kennedy Intl to Midway flights

Hobby to Midway flights

Newark to Midway flights

Dallas/Fort Worth to Midway flights

Santa Ana to O'Hare Intl flights

Baltimore to Midway flights

Los Angeles to Midway flights

Dulles Intl to Midway flights

LaGuardia to Midway flights

Atlanta to Midway flights

Austin to O'Hare Intl flights

Burbank to O'Hare Intl flights

Sky Harbor Intl to O'Hare Intl flights

Minneapolis to O'Hare Intl flights

Orlando to O'Hare Intl flights

Hobby to O'Hare Intl flights

Portland to O'Hare Intl flights

Raleigh to O'Hare Intl flights

San Francisco to Midway flights

Charlotte to O'Hare Intl flights

George Bush Intcntl to O'Hare Intl flights

Philadelphia to Midway flights

San Diego to O'Hare Intl flights

Tampa to O'Hare Intl flights

Denver to Midway flights

Fort Lauderdale to O'Hare Intl flights

Miami to O'Hare Intl flights

San Jose to O'Hare Intl flights

Minneapolis to Midway flights

Tampa to Midway flights

Miami to Midway flights

Reagan-National to Midway flights

George Bush Intcntl to Midway flights

Seattle to Midway flights

Salt Lake City to O'Hare Intl flights

Other flights to Rockford

Chicago Greater Rockford Airport to Tampa flights

Chicago Greater Rockford Airport to Punta Gorda flights

Chicago Greater Rockford Airport to Tampa flights

Chicago Greater Rockford Airport to Phoenix-Mesa Gateway Airport flights

Chicago Greater Rockford Airport to Las Vegas flights

Chicago Greater Rockford Airport to Orlando Sanford Intl Airport flights

Chicago Greater Rockford Airport to Phoenix-Mesa Gateway Airport flights

Chicago Greater Rockford Airport to Las Vegas flights

Chicago Greater Rockford Airport to Punta Gorda flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$190+ Cheap flights from Idaho to Greater Rockford (RFD)

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho to Rockford with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Idaho to Rockford

Keep the following information in mind while searching for Idaho to Rockford flight deals. Data was last updated August 28, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Idaho to Rockford

Cheapest flights from Idaho to RockfordExplore the most affordable flight options available from Idaho to Rockford. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 28, 2025.

Explore the most affordable flight options available from Idaho to Rockford. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Idaho to Chicago Greater Rockford Airport that are best for you.

Best time to book a flight from Idaho to Rockford

Have a flexible travel schedule? Discover the best time to fly to Rockford from Idaho with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Chicago Greater Rockford Airport

Related info for your journey

Find useful and relevant information for your journey from Idaho to Rockford. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Idaho to Chicago Greater Rockford Airport?

Can I find deals for flights from Idaho to Rockford that include hotel bookings?

How can I find direct flights from Idaho to Rockford?

Can I find deals for business class flights from Idaho to Rockford?

Traveling to a place near Chicago Greater Rockford Airport?

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 Idaho to Rockford

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Idaho to Rockford
Explore the most affordable flight options available from Idaho to Rockford. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 28, 2025.