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Cheap flights from Illinois to Guam from $999

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Guam departing on 11/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Illinois to Guam

Cheap round-trip flights

United Airlines Logo
5:29 pm - 3:45 pmSTL-GUM
54h 16m2 stops
United Airlines Logo
7:25 am - 12:39 pmGUM-STL
21h 14m2 stops
$999United Airlines
Find Deal
Fri, Nov 28 - Tue, Dec 2
United Airlines Logo
5:29 pm - 3:45 pmSTL-GUM
54h 16m2 stops
United Airlines Logo
7:25 am - 8:57 pmGUM-STL
29h 32m2 stops
$1,093United Airlines
Find Deal
Fri, Nov 28 - Tue, Dec 2
United Airlines Logo
6:00 am - 6:50 pmORD-GUM
20h 50m2 stops
United Airlines Logo
7:25 am - 5:03 pmGUM-ORD
25h 38m2 stops
$1,917United Airlines
Find Deal
Mon, Dec 1 - Tue, Dec 9
Delta Logo
6:00 am - 2:35 pmORD-GUM
40h 35m2 stops
Delta Logo
4:50 pm - 9:56 pmGUM-ORD
45h 06m2 stops
$1,933Delta
Find Deal
Thu, Jan 22 - Sun, Feb 1
United Airlines Logo
9:15 am - 7:05 pmORD-GUM
17h 50m1 stop
United Airlines Logo
7:05 pm - 3:10 pmGUM-ORD
36h 05m1 stop
$1,937United Airlines
Find Deal
Thu, Jan 22 - Sun, Feb 1
United Airlines Logo
7:35 pm - 6:50 pmORD-GUM
31h 15m2 stops
United Airlines Logo
7:05 pm - 3:10 pmGUM-ORD
36h 05m1 stop
$1,942United Airlines
Find Deal
Sun, Nov 16 - Sun, Nov 30
United Airlines Logo
7:55 pm - 6:50 pmORD-GUM
30h 55m2 stops
United Airlines Logo
5:00 pm - 7:30 pmGUM-ORD
42h 30m2 stops
$1,953United Airlines
Find Deal
Sun, Nov 16 - Sun, Nov 30
United Airlines Logo
9:30 am - 6:05 pmORD-GUM
17h 35m1 stop
United Airlines Logo
7:10 am - 7:55 pmGUM-ORD
27h 45m2 stops
$1,967United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 13
Delta Logo
7:00 am - 2:35 pmORD-GUM
39h 35m2 stops
Delta Logo
4:50 pm - 9:56 pmGUM-ORD
45h 06m2 stops
$1,983Delta
Find Deal
Mon, Dec 1 - Sat, Jan 17
United Airlines Logo
9:15 am - 7:05 pmORD-GUM
17h 50m1 stop
United Airlines Logo
7:05 pm - 3:10 pmGUM-ORD
36h 05m1 stop
$1,987United Airlines
Find Deal
Fri, Jan 23 - Sun, Feb 1

Delta flights from Illinois to Guam

Our best Delta deals on Illinois to Guam flight tickets
Delta
Jan 22
ORD6:00 amChicago O'Hare Intl
40h 35m
2 stops
GUM2:35 pmTamuning Guam Intl
Feb 1
GUM4:50 pmTamuning Guam Intl
45h 06m
2 stops
ORD9:56 pmChicago O'Hare Intl
$1,933
Find similar
Delta
Dec 1
ORD7:30 amChicago O'Hare Intl
39h 05m
2 stops
GUM2:35 pmTamuning Guam Intl
Jan 13
GUM4:50 pmTamuning Guam Intl
46h 54m
2 stops
ORD11:44 pmChicago O'Hare Intl
$1,983
Find similar
Delta
Dec 1
ORD7:30 amChicago O'Hare Intl
39h 05m
2 stops
GUM2:35 pmTamuning Guam Intl
Jan 17
GUM4:50 pmTamuning Guam Intl
46h 54m
2 stops
ORD11:44 pmChicago O'Hare Intl
$2,102
Find similar

United Airlines flights from Illinois to Guam

Our best United Airlines deals on Illinois to Guam flight tickets
United Airlines
Nov 28
STL5:29 pmLambert-St Louis
54h 16m
2 stops
GUM3:45 pmTamuning Guam Intl
Dec 2
GUM7:25 amTamuning Guam Intl
21h 14m
2 stops
STL12:39 pmLambert-St Louis
$999
Find similar
United Airlines
Nov 28
STL5:29 pmLambert-St Louis
54h 16m
2 stops
GUM3:45 pmTamuning Guam Intl
Dec 2
GUM7:25 amTamuning Guam Intl
29h 32m
2 stops
STL8:57 pmLambert-St Louis
$1,093
Find similar
United Airlines
Dec 1
ORD6:00 amChicago O'Hare Intl
20h 50m
2 stops
GUM6:50 pmTamuning Guam Intl
Dec 9
GUM7:25 amTamuning Guam Intl
25h 38m
2 stops
ORD5:03 pmChicago O'Hare Intl
$1,917
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from Illinois to Guam that are best for you.

Fly from

Fly to

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

7:25 am-12:39 pm

2 stops21h 14m

$999

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

7:25 am-8:57 pm

2 stops29h 32m

$1,093

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Mon 12/1

6:00 am-6:50 pm

2 stops20h 50m

Tamuning Guam Intl

Tue 12/9

7:25 am-5:03 pm

2 stops25h 38m

$1,917

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Thu 1/22

6:00 am-2:35 pm

2 stops40h 35m

Tamuning Guam Intl

Sun 2/1

4:50 pm-9:56 pm

2 stops45h 06m

$1,933

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Thu 1/22

9:15 am-7:05 pm

1 stop17h 50m

Tamuning Guam Intl

Sun 2/1

7:05 pm-3:10 pm

1 stop36h 05m

$1,937

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Sun 11/16

7:35 pm-6:50 pm

2 stops31h 15m

Tamuning Guam Intl

Sun 11/30

7:05 pm-3:10 pm

1 stop36h 05m

$1,942

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Sun 11/16

7:55 pm-6:50 pm

2 stops30h 55m

Tamuning Guam Intl

Sun 11/30

5:00 pm-7:30 pm

2 stops42h 30m

$1,953

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Fri 10/3

9:30 am-6:05 pm

1 stop17h 35m

Tamuning Guam Intl

Mon 10/13

7:10 am-7:55 pm

2 stops27h 45m

$1,967

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Mon 12/1

7:00 am-2:35 pm

2 stops39h 35m

Tamuning Guam Intl

Sat 1/17

4:50 pm-9:56 pm

2 stops45h 06m

$1,983

ChicagoTamuning

ORD - GUM

ORDGUM

Chicago O'Hare Intl

Fri 1/23

9:15 am-7:05 pm

1 stop17h 50m

Tamuning Guam Intl

Sun 2/1

7:05 pm-3:10 pm

1 stop36h 05m

$1,987

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Guam from

How to get the cheapest flight ticket from Illinois to Guam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Guam?

The cheapest day to depart from Illinois to Guam is on a Wednesday when prices can be found for as low as $1,966. Flights from Illinois to Guam on a Friday will generally be more expensive and average around $2,286. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Guam?

Flying to Guam from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $2,084 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to Guam is in the morning when prices are around $2,096.

Cheap Illinois to Guam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Guam

Best Price Found

$999

Fastest flight time

17h 35m

Direct flights

None

Airports in Guam

1 airport
The best flight deal from Illinois to Guam found on momondo in the last 72 hours is $999
The fastest flight from Illinois to Guam takes 17h 35m
There are no direct flights from Illinois to Guam. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Tamuning Guam Intl Airport, Lambert-St Louis Airport - Tamuning Guam Intl Airport and Chicago Midway Airport - Tamuning Guam Intl Airport.
There is 1 airport near Guam: Tamuning Guam Intl (GUM)
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  • When did momondo last update prices for flights from Illinois to Guam?

    Prices for flights from Illinois to Guam are updated daily.

  • How many operators does momondo search for flights from Illinois to Guam?

  • How old do you have to be to fly from Illinois to Guam?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Guam.

  • What documentation or ID do you need to fly to Guam?

    The required travel and health documents for your Guam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Guam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Guam

Compare and see reviews for airlines that fly from Illinois to Guam with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $1,916Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Guam?

It is quick and easy to find Illinois to Guam flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Guam that suits you.

Can I find flights from Illinois to Guam with flexible booking policies on momondo?

momondo does allow users to show only those flights to Guam from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Guam?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Guam from Illinois.

I’m not ready to book a flight from Illinois to Guam right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Guam from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Flights to Tamuningfrom $788