How long is the flight from Illinois to Guam?

Airlines like Delta and United Airlines fly from Illinois to Guam in about 23h 10m. The time it takes to get you to your destination can typically vary by up to 2h 30m. There are 7345 mi between Illinois and Guam. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Guam ranges from 2.6 - 14.4 inches per month. August is typically the wettest month, when rainfall can reach 14.4 in. March is typically the driest time to visit Guam when rainfall is around 2.6 in.

If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

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

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

How can I find direct flights from Illinois to Guam?

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

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

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

$1,084+ Flights from Illinois to Guam

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Cheap flight deals from Illinois to Guam

Cheapest flights from Illinois to Guam
Explore the most affordable flight options available from Illinois to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Thu 12/256:00 amORD - GUM

2 stops25h 05mDelta

Sat 12/271:00 amGUM - ORD

2 stops39h 03mDelta

Deal found 12/14

$2,939

Wed 12/176:00 amORD - GUM

2 stops20h 50mUnited Airlines

Sun 1/47:40 amGUM - ORD

2 stops24h 47mUnited Airlines

Deal found 12/17

$2,978

Sun 12/215:49 amORD - GUM

2 stops21h 11mUnited Airlines

Tue 12/237:20 pmGUM - ORD

1 stop35h 50mUnited Airlines

Deal found 12/17

$3,102

Thu 12/185:49 amORD - GUM

2 stops21h 11mUnited Airlines

Sat 1/37:40 amGUM - ORD

2 stops29h 52mUnited Airlines

Deal found 12/17

$3,130

Fri 12/198:45 amORD - GUM

2 stops39h 00mUnited Airlines

Sun 12/217:20 pmGUM - ORD

1 stop35h 50mUnited Airlines

Deal found 12/15

$3,644

Best flights from Illinois to Guam
Discover carefully curated flight deals from Illinois to Guam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Tue 2/245:25 amORD - GUM

2 stops25h 40mDelta

Mon 3/94:50 pmGUM - ORD

2 stops46h 06mDelta

Deal found 12/15

$1,933

Tue 2/241:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Mon 3/97:20 pmGUM - ORD

1 stop35h 50mUnited Airlines

Deal found 12/15

$1,949

Thu 1/297:20 amORD - GUM

2 stops39h 15mDelta

Wed 2/41:00 amGUM - ORD

2 stops38h 53mDelta

Deal found 12/15

$2,078

Thu 1/291:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Thu 2/57:40 amGUM - ORD

2 stops19h 54mUnited Airlines

Deal found 12/15

$2,247

Thu 1/157:30 amORD - GUM

2 stops23h 35mDelta

Wed 1/211:00 amGUM - ORD

2 stops38h 53mDelta

Deal found 12/16

$2,138

Mon 2/91:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Tue 2/177:20 pmGUM - ORD

1 stop35h 50mUnited Airlines

Deal found 12/15

$2,259

Sat 1/314:30 pmMDW - GUM

2 stops38h 35mDelta

Fri 2/61:00 amGUM - MDW

2 stops27h 46mDelta

Deal found 12/17

$2,178

Sun 2/19:05 pmORD - GUM

2 stops30h 00mUnited Airlines

Sat 2/77:40 amGUM - ORD

2 stops19h 54mUnited Airlines

Deal found 12/16

$2,278

Sat 1/316:15 amORD - GUM

2 stops24h 50mDelta

Fri 2/61:00 amGUM - ORD

2 stops31h 38mDelta

Deal found 12/17

$2,178

Mon 3/99:40 amORD - GUM

1 stop18h 10mUnited Airlines

Fri 3/137:20 pmGUM - ORD

1 stop35h 50mUnited Airlines

Deal found 12/14

$2,297

Fri 1/306:50 amORD - GUM

2 stops39h 45mDelta

Fri 2/64:50 pmGUM - ORD

2 stops47h 06mDelta

Deal found 12/16

$2,178

Wed 1/77:30 amORD - GUM

2 stops23h 35mDelta

Tue 1/131:00 amGUM - ORD

2 stops38h 53mDelta

Deal found 12/17

$2,198

Wed 2/46:14 pmMDW - GUM

2 stops28h 21mDelta

Mon 2/91:00 amGUM - MDW

2 stops32h 55mDelta

Deal found 12/17

$2,278

Thu 1/155:31 pmMDW - GUM

2 stops37h 34mDelta

Wed 1/211:00 amGUM - MDW

2 stops37h 22mDelta

Deal found 12/16

$2,333

Tue 3/248:30 amSTL - GUM

2 stops28h 50mUnited Airlines

Wed 4/112:10 pmGUM - STL

2 stops25h 09mUnited Airlines

Deal found 12/16

$4,169

Tue 3/248:30 amSTL - GUM

2 stops28h 50mUnited Airlines

Thu 4/212:10 pmGUM - STL

2 stops23h 35mUnited Airlines

Deal found 12/16

$4,169

Last-minute flights from Illinois to Guam
Discover last-minute flight deals from Illinois to Guam. Data last updated December 18, 2025 and is based on user searches.

Wed 1/77:30 amORD - GUM

2 stops23h 35mDelta

Tue 1/131:00 amGUM - ORD

2 stops38h 53mDelta

Deal found 12/17

$2,198

Thu 1/157:30 amORD - GUM

2 stops23h 35mDelta

Wed 1/211:00 amGUM - ORD

2 stops38h 53mDelta

Deal found 12/16

$2,138

Thu 1/151:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Thu 1/227:40 amGUM - ORD

2 stops19h 54mUnited Airlines

Deal found 12/16

$2,316

Thu 1/155:31 pmMDW - GUM

2 stops37h 34mDelta

Wed 1/211:00 amGUM - MDW

2 stops37h 22mDelta

Deal found 12/17

$2,333

Thu 1/297:20 amORD - GUM

2 stops39h 15mDelta

Wed 2/41:00 amGUM - ORD

2 stops38h 53mDelta

Deal found 12/15

$2,078

Thu 1/291:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Thu 2/57:40 amGUM - ORD

2 stops19h 54mUnited Airlines

Deal found 12/15

$2,247

Fri 1/306:50 amORD - GUM

2 stops39h 45mDelta

Fri 2/64:50 pmGUM - ORD

2 stops47h 06mDelta

Deal found 12/16

$2,178

Fri 1/305:40 amORD - GUM

2 stops21h 25mUnited Airlines

Sat 2/77:40 amGUM - ORD

2 stops23h 13mUnited Airlines

Deal found 12/17

$2,328

Fri 1/301:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Fri 2/67:40 amGUM - ORD

2 stops19h 54mUnited Airlines

Deal found 12/16

$2,347

Sat 1/314:30 pmMDW - GUM

2 stops38h 35mDelta

Fri 2/61:00 amGUM - MDW

2 stops27h 46mDelta

Deal found 12/17

$2,178

One-way flights from Illinois to Guam
Search for one-way flight options from Illinois to Guam. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Sun 1/48:00 amORD - GUM

3 stops39h 15mMultiple Airlines

Deal found 12/17

$1,084

Mon 12/227:10 amORD - GUM

3 stops47h 50mMultiple Airlines

Deal found 12/15

$1,511

Mon 2/1612:46 pmMDW - GUM

2 stops33h 49mDelta

Deal found 12/17

$1,602

Sun 1/45:30 amORD - GUM

2 stops41h 05mDelta

Deal found 12/17

$1,602

Sun 1/411:48 amMDW - GUM

2 stops43h 17mDelta

Deal found 12/17

$1,613

Mon 12/222:15 pmORD - GUM

2 stops40h 50mDelta

Deal found 12/15

$1,628

Mon 2/161:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Deal found 12/17

$1,788

Sun 1/41:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Deal found 12/17

$1,838

Mon 3/165:40 amORD - GUM

2 stops22h 10mUnited Airlines

Deal found 12/17

$3,271

Mon 12/221:10 pmORD - GUM

1 stop23h 10mUnited Airlines

Deal found 12/15

$3,963

Find flight deals from Illinois to Guam

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,918 (United Airlines)
One-way from	$1,084 (Kiwi.com)

Provider with most accurate pricing for Chicago (CHI)-Tamuning Guam Intl flight deals.

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From Illinois to Guam

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One-way flight from Illinois to Guam

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Route

Depart

Return

Price

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Tue 2/24

5:25 am-11:05 pm

2 stops25h 40m

Tamuning Guam Intl

Mon 3/9

4:50 pm-11:56 pm

2 stops46h 06m

$1,933

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Tue 2/24

1:10 pm-4:20 am

1 stop23h 10m

Tamuning Guam Intl

Mon 3/9

7:20 pm-4:10 pm

1 stop35h 50m

$1,949

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Thu 1/29

7:20 am-2:35 pm

2 stops39h 15m

Tamuning Guam Intl

Wed 2/4

1:00 am-11:53 pm

2 stops38h 53m

$2,078

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Thu 1/15

7:30 am-11:05 pm

2 stops23h 35m

Tamuning Guam Intl

Wed 1/21

1:00 am-11:53 pm

2 stops38h 53m

$2,138

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Sat 1/31

4:30 pm-11:05 pm

2 stops38h 35m

Tamuning Guam Intl

Fri 2/6

1:00 am-12:46 pm

2 stops27h 46m

$2,178

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Sat 1/31

6:15 am-11:05 pm

2 stops24h 50m

Tamuning Guam Intl

Fri 2/6

1:00 am-4:38 pm

2 stops31h 38m

$2,178

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Fri 1/30

6:50 am-2:35 pm

2 stops39h 45m

Tamuning Guam Intl

Fri 2/6

4:50 pm-11:56 pm

2 stops47h 06m

$2,178

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Wed 1/7

7:30 am-11:05 pm

2 stops23h 35m

Tamuning Guam Intl

Tue 1/13

1:00 am-11:53 pm

2 stops38h 53m

$2,198

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Thu 1/29

1:10 pm-4:20 am

1 stop23h 10m

Tamuning Guam Intl

Thu 2/5

7:40 am-11:34 am

2 stops19h 54m

$2,247

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Mon 2/9

1:10 pm-4:20 am

1 stop23h 10m

Tamuning Guam Intl

Tue 2/17

7:20 pm-3:10 pm

1 stop35h 50m

$2,259

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 26 results

Best time to book a flight from Illinois to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Illinois 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 Illinois to Guam

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

Unlike in the afternoon, when flights are generally more expensive, you can save up to 35% on flights from Illinois to Guam by exploring options for tickets in the evening.

Related info for your journey

How long is the flight from Illinois to Guam?
Airlines like Delta and United Airlines fly from Illinois to Guam in about 23h 10m. The time it takes to get you to your destination can typically vary by up to 2h 30m. There are 7345 mi between Illinois and Guam. This flight may include one or multiple stops.
Can I find deals for flights from Illinois to Guam that include hotel bookings?
Yes. In addition to deals on Illinois to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Guam?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Guam.
Can I find deals for business class flights from Illinois to Guam?
Yes. Cheapflights offers flight deals from Illinois to Guam 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Illinois to Guam

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,916	Average$2,226	FlexibilityNo cancel fee	On-time69%

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$1,084+ Cheap flights from Illinois to Guam

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Guam with Cheapflights

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Cheap flight deals from Illinois to Guam

Cheapest flights from Illinois to GuamExplore the most affordable flight options available from Illinois to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from Illinois to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Find flight deals from Illinois to Guam

Keep the following information in mind while searching for Illinois to Guam flight deals. Data was last updated December 18, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Guam that are best for you.

Best time to book a flight from Illinois to Guam

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

Cheapflights Insights

Everything you need to know about your flight from Illinois to Guam

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

Find hourly flight availability from Illinois to Guam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Guam. 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 Illinois to Guam?

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

How can I find direct flights from Illinois to Guam?

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

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Alternative routes for Illinois to Guam

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Top airline flying from Illinois to Guam

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Cheapest flights from Illinois to Guam
Explore the most affordable flight options available from Illinois to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.