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Tamuning

$739+ Cheap flights from Illinois to Tamuning (GUM)

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GUM
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Illinois to Tamuning

Keep the following information in mind while searching for Illinois to Tamuning flight deals. Data was last updated September 16, 2025.

Round-trip from

$739
(United Airlines)
From Illinois to Tamuning Guam Intl
Search Deals

Find flight deals from Illinois to Tamuning

Cheapest flights from Illinois to Tamuning
Explore the most affordable flight options available from Illinois to Tamuning. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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 9/306:15 amSTL - GUM
2 stops42h 35mUnited Airlines
Fri 10/37:10 amGUM - STL
2 stops20h 34mUnited Airlines
Deal found 9/16$739
This United Airlines deal was found by Cheapflights users on 9/14. 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 stops24h 48mUnited Airlines
Deal found 9/14$999
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Sun 10/58:45 amORD - GUM
2 stops40h 05mUnited Airlines
Wed 10/87:10 amGUM - ORD
2 stops29h 20mUnited Airlines
Deal found 9/15$1,657
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/66:25 pmORD - GUM
2 stops41h 55mUnited Airlines
Sun 11/97:40 amGUM - ORD
2 stops20h 36mUnited Airlines
Deal found 9/15$1,928
This Delta deal was found by Cheapflights users on 9/16. 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
Tue 1/134:50 pmGUM - MDW
2 stops44h 56mDelta
Deal found 9/16$1,983
This Delta deal was found by Cheapflights users on 9/16. 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 12/15:32 amORD - GUM
2 stops25h 33mDelta
Fri 1/161:00 amGUM - ORD
2 stops38h 44mDelta
Deal found 9/16$1,983
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/11:10 pmORD - GUM
1 stop23h 10mUnited Airlines
Sat 1/177:20 pmGUM - ORD
1 stop35h 50mUnited Airlines
Deal found 9/16$2,000
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 9/2712:53 pmORD - GUM
2 stops48h 32mUnited Airlines
Tue 9/307:10 amGUM - ORD
2 stops27h 45mUnited Airlines
Deal found 9/14$2,009
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 12/176:00 amORD - GUM
2 stops20h 50mUnited Airlines
Thu 12/257:40 amGUM - ORD
2 stops29h 52mUnited Airlines
Deal found 9/14$2,017
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/11:10 pmORD - GUM
1 stop23h 10mUnited Airlines
Tue 1/137:40 amGUM - ORD
2 stops38h 45mUnited Airlines
Deal found 9/16$2,026
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/235:49 amORD - GUM
2 stops21h 11mUnited Airlines
Mon 12/297:20 pmGUM - ORD
1 stop35h 50mUnited Airlines
Deal found 9/15$2,042
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 12/141:10 pmORD - GUM
1 stop23h 10mUnited Airlines
Sat 1/177:20 pmGUM - ORD
1 stop35h 50mUnited Airlines
Deal found 9/16$2,050

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Tamuning 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 September 16, 2025.
Use the filters below to find and compare flights from Illinois to Tamuning that are best for you.

Fly from

Illinois

Fly to

Tamuning

Route

Depart

Return

Price

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 9/30

6:15 am-3:50 pm

2 stops42h 35m

Tamuning Guam Intl

Fri 10/3

7:10 am-12:44 pm

2 stops20h 34m

$739

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-8:57 pm

2 stops29h 17m

$999

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Thu 11/6

6:25 pm-4:20 am

2 stops41h 55m

Tamuning Guam Intl

Sun 11/9

7:40 am-12:16 pm

2 stops20h 36m

$1,928

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Mon 12/1

6:00 am-11:05 pm

2 stops25h 05m

Tamuning Guam Intl

Tue 1/13

4:50 pm-9:46 pm

2 stops44h 56m

$1,983

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Mon 12/1

5:34 pm-11:05 pm

2 stops37h 31m

Tamuning Guam Intl

Fri 1/16

1:00 am-9:46 pm

2 stops36h 46m

$1,983

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Mon 12/1

5:50 pm-11:05 pm

2 stops37h 15m

Tamuning Guam Intl

Fri 1/16

1:00 am-11:44 pm

2 stops38h 44m

$1,983

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Mon 12/1

1:10 pm-4:20 am

1 stop23h 10m

Tamuning Guam Intl

Tue 1/13

7:20 pm-3:10 pm

1 stop35h 50m

$2,000

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Mon 12/1

1:10 pm-4:20 am

1 stop23h 10m

Tamuning Guam Intl

Sat 1/17

7:20 pm-3:10 pm

1 stop35h 50m

$2,000

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Sat 9/27

12:53 pm-4:25 am

2 stops48h 32m

Tamuning Guam Intl

Tue 9/30

7:10 am-7:55 pm

2 stops27h 45m

$2,009

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Wed 12/17

6:00 am-6:50 pm

2 stops20h 50m

Tamuning Guam Intl

Mon 12/29

7:40 am-2:55 pm

2 stops23h 15m

$2,017

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 15 results
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Best time to book a flight from Illinois to Tamuning

Have a flexible travel schedule? Discover the best time to fly to Tamuning 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 Tamuning

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

Find hourly flight availability from Illinois to Tamuning. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Tamuning as you normally would.

Related info for your journey

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

  • What airport do you fly into for flights to Tamuning from Illinois?

    If you book a flight to Tamuning from Illinois, you will be flying to Guam Intl, which is the city’s only airport. Tamuning Guam Intl (GUM) is located 1.1 mi from the center of Tamuning.

  • How long is the flight from Illinois to Tamuning?

    A quick flight from Illinois to Tamuning can take about 25h 05m. United Airlines provides one of the quickest options available for as low as $1,983. There are 7360 mi between Illinois and Tamuning. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Illinois to Tamuning?

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

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

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

  • How can I find direct flights from Illinois to Tamuning?

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

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

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

  • What is the cheapest month to book a flight from Illinois to Tamuning?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Tamuning (average of $1,977). Flying from Illinois to Tamuning in May is currently the most expensive (average of $2,214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Tamuning

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Top airline flying from Illinois to Tamuning

Discover the top airline that operate flights from Illinois to Tamuning. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,916Average$2,226FlexibilityNo cancel feeOn-time69%

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