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$1,123+ Cheap flights from Illinois to Guam

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GUM
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find 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 November 2, 2025.

This United Airlines deal was found by Cheapflights users on 10/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/285:29 pmSTL - GUM
2 stops54h 16mUnited Airlines
Tue 12/27:40 amGUM - STL
2 stops20h 59mUnited Airlines
Deal found 10/30$1,123
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:00 amMDW - GUM
2 stops25h 05mDelta
Tue 12/91:00 amGUM - MDW
2 stops33h 00mDelta
Deal found 11/1$2,078
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:00 amORD - GUM
2 stops25h 05mDelta
Sun 12/71:00 amGUM - ORD
2 stops35h 35mDelta
Deal found 11/1$2,078
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amMDW - GUM
2 stops25h 05mDelta
Thu 12/111:00 amGUM - MDW
2 stops27h 34mDelta
Deal found 11/1$2,128
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:00 amORD - GUM
2 stops25h 05mDelta
Tue 12/91:00 amGUM - ORD
2 stops28h 50mDelta
Deal found 11/1$2,128
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:08 pmORD - GUM
2 stops28h 27mDelta
Mon 1/121:00 amGUM - ORD
2 stops38h 53mDelta
Deal found 11/1$2,138
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:00 amMDW - GUM
2 stops25h 05mDelta
Sat 12/61:00 amGUM - MDW
2 stops27h 34mDelta
Deal found 11/1$2,178
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:47 amORD - GUM
2 stops23h 18mDelta
Fri 12/121:00 amGUM - ORD
2 stops29h 17mDelta
Deal found 11/1$2,178
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:34 pmMDW - GUM
2 stops29h 01mDelta
Tue 1/134:50 pmGUM - MDW
2 stops45h 19mDelta
Deal found 11/2$2,203
This United Airlines deal was found by Cheapflights users on 11/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:00 amORD - GUM
2 stops20h 50mUnited Airlines
Mon 12/87:40 amGUM - ORD
2 stops19h 49mUnited Airlines
Deal found 11/1$2,228
This United Airlines deal was found by Cheapflights users on 11/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:10 pmORD - GUM
1 stop23h 10mUnited Airlines
Wed 12/107:40 amGUM - ORD
2 stops23h 01mUnited Airlines
Deal found 11/1$2,252
This United Airlines deal was found by Cheapflights users on 11/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:10 pmORD - GUM
1 stop23h 10mUnited Airlines
Mon 12/87:20 pmGUM - ORD
1 stop35h 50mUnited Airlines
Deal found 11/1$2,259

Cheap flight deals from Illinois to Guam

Keep the following information in mind while searching for Illinois to Guam flight deals. Data was last updated November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,123
(United Airlines)
Provider with most accurate pricing for Chicago (CHI)-Tamuning Guam Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Tamuning Guam Intl flights.
Search Deals
From Illinois to Guam
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Guam 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 November 2, 2025.
Use the filters below to find and compare flights from Illinois to Guam that are best for you.

Fly from

Illinois

Fly to

Guam

Route

Depart

Return

Price

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 11/28

5:29 pm-3:45 pm

2 stops54h 16m

Tamuning Guam Intl

Tue 12/2

7:40 am-12:39 pm

2 stops20h 59m

$1,123

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Fri 3/6

5:45 am-7:05 pm

2 stops21h 20m

Tamuning Guam Intl

Fri 3/13

7:25 am-8:23 pm

2 stops27h 58m

$2,018

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Thu 11/27

6:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Wed 12/10

1:00 am-12:34 pm

2 stops27h 34m

$2,078

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Thu 11/27

6:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Sun 12/7

1:00 am-6:00 pm

2 stops33h 00m

$2,078

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Tue 12/2

5:13 pm-2:35 pm

2 stops29h 22m

Tamuning Guam Intl

Tue 12/9

4:50 pm-6:00 pm

2 stops41h 10m

$2,078

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Tue 11/25

6:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Sun 12/7

1:00 am-6:00 pm

2 stops33h 00m

$2,078

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Tue 12/2

5:13 pm-2:35 pm

2 stops29h 22m

Tamuning Guam Intl

Wed 12/10

1:00 am-6:00 pm

2 stops33h 00m

$2,078

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Thu 11/27

5:34 pm-11:05 pm

2 stops37h 31m

Tamuning Guam Intl

Tue 12/9

4:50 pm-12:34 pm

2 stops35h 44m

$2,078

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Wed 11/26

6:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Wed 12/10

1:00 am-12:34 pm

2 stops27h 34m

$2,078

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Wed 12/3

10:49 am-2:35 pm

2 stops35h 46m

Tamuning Guam Intl

Wed 12/10

1:00 am-12:34 pm

2 stops27h 34m

$2,078

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 24 results
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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?

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 November 2, 2025.

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

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?

    Airlines like United Airlines and Delta fly from Illinois to Guam in about 25h 05m. The time it takes to get you to your destination can typically vary by up to 29h 11m. There are 7360 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

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Alternative routes for Illinois to Guam

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Top airline flying from Illinois to Guam

Discover the top airline that operate flights from Illinois to Guam. 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,916Average$2,227FlexibilityNo cancel feeOn-time69%

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