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Cheap flights from Illinois to Guam from $1,156

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

Enter your travel dates to find the best prices.
United Airlines Logo
11:20 am - 3:45 pmSTL-GUM
60h 25m2 stops
United Airlines Logo
7:40 am - 4:27 pmGUM-STL
24h 47m2 stops
$1,156United Airlines
Find Deal
Fri, Nov 28 - Tue, Dec 2
United Airlines Logo
6:00 am - 7:05 pmSTL-GUM
21h 05m2 stops
United Airlines Logo
7:40 am - 8:58 pmGUM-STL
29h 18m2 stops
$1,968United Airlines
Find Deal
Mon, Jan 12 - Wed, Jan 21
United Airlines Logo
6:45 am - 7:05 pmSTL-GUM
44h 20m2 stops
United Airlines Logo
7:40 am - 8:58 pmGUM-STL
29h 18m2 stops
$1,994United Airlines
Find Deal
Sun, Jan 11 - Mon, Jan 19
United Airlines Logo
6:00 am - 7:05 pmSTL-GUM
21h 05m2 stops
United Airlines Logo
5:00 pm - 8:58 pmGUM-STL
43h 58m2 stops
$2,003United Airlines
Find Deal
Tue, Jan 13 - Mon, Jan 19
United Airlines Logo
6:40 pm - 4:20 amSTL-GUM
41h 40m2 stops
United Airlines Logo
7:20 pm - 7:27 pmGUM-STL
40h 07m2 stops
$2,016United Airlines
Find Deal
Sun, Jan 11 - Sun, Jan 25
United Airlines Logo
6:00 am - 7:05 pmSTL-GUM
21h 05m2 stops
United Airlines Logo
7:40 am - 3:52 pmGUM-STL
24h 12m2 stops
$2,018United Airlines
Find Deal
Fri, Jan 9 - Thu, Jan 22
United Airlines Logo
6:45 am - 7:05 pmSTL-GUM
44h 20m2 stops
United Airlines Logo
7:40 am - 3:37 pmGUM-STL
23h 57m2 stops
$2,044United Airlines
Find Deal
Sun, Jan 11 - Sat, Jan 24
United Airlines Logo
4:35 pm - 7:05 pmSTL-GUM
34h 30m2 stops
United Airlines Logo
7:40 am - 3:52 pmGUM-STL
24h 12m2 stops
$2,046United Airlines
Find Deal
Sun, Jan 11 - Fri, Jan 23
Delta Logo
8:30 pm - 11:05 pmSTL-GUM
34h 35m2 stops
Delta Logo
1:00 am - 9:57 pmGUM-STL
36h 57m2 stops
$2,053Delta
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Mon, Dec 1 - Mon, Dec 8
Delta Logo
5:34 pm - 2:35 pmMDW-GUM
29h 01m2 stops
Delta Logo
1:00 am - 10:09 pmGUM-MDW
37h 09m2 stops
$2,128Delta
Find Deal
Mon, Dec 1 - Fri, Jan 16

Delta flights from Illinois to Guam

Our best Delta deals on Illinois to Guam flight tickets
Delta
Dec 1
STL8:30 pmLambert-St Louis
34h 35m
2 stops
GUM11:05 pmTamuning Guam Intl
Dec 8
GUM1:00 amTamuning Guam Intl
36h 57m
2 stops
STL9:57 pmLambert-St Louis
$2,053
Find similar
Delta
Dec 1
MDW5:34 pmChicago Midway
29h 01m
2 stops
GUM2:35 pmTamuning Guam Intl
Jan 16
GUM1:00 amTamuning Guam Intl
37h 09m
2 stops
MDW10:09 pmChicago Midway
$2,128
Find similar
Delta
Dec 1
ORD7:20 amChicago O'Hare Intl
23h 45m
2 stops
GUM11:05 pmTamuning Guam Intl
Jan 12
GUM1:00 amTamuning Guam Intl
38h 53m
2 stops
ORD11:53 pmChicago O'Hare Intl
$2,138
Find similar

United Airlines flights from Illinois to Guam

Our best United Airlines deals on Illinois to Guam flight tickets
United Airlines
Nov 28
STL11:20 amLambert-St Louis
60h 25m
2 stops
GUM3:45 pmTamuning Guam Intl
Dec 2
GUM7:40 amTamuning Guam Intl
24h 47m
2 stops
STL4:27 pmLambert-St Louis
$1,156
Find similar
United Airlines
Jan 12
STL6:00 amLambert-St Louis
21h 05m
2 stops
GUM7:05 pmTamuning Guam Intl
Jan 21
GUM7:40 amTamuning Guam Intl
29h 18m
2 stops
STL8:58 pmLambert-St Louis
$1,968
Find similar
United Airlines
Jan 11
STL6:45 amLambert-St Louis
44h 20m
2 stops
GUM7:05 pmTamuning Guam Intl
Jan 19
GUM7:40 amTamuning Guam Intl
29h 18m
2 stops
STL8:58 pmLambert-St Louis
$1,994
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 October 28, 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

11:20 am-3:45 pm

2 stops60h 25m

Tamuning Guam Intl

Tue 12/2

7:40 am-4:27 pm

2 stops24h 47m

$1,156

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 1/12

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Wed 1/21

7:40 am-8:58 pm

2 stops29h 18m

$1,968

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 1/11

6:45 am-7:05 pm

2 stops44h 20m

Tamuning Guam Intl

Mon 1/19

7:40 am-8:58 pm

2 stops29h 18m

$1,994

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Tue 1/13

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Mon 1/19

5:00 pm-8:58 pm

2 stops43h 58m

$2,003

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 1/11

6:40 pm-4:20 am

2 stops41h 40m

Tamuning Guam Intl

Sun 1/25

7:20 pm-7:27 pm

2 stops40h 07m

$2,016

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Fri 1/9

6:00 am-7:05 pm

2 stops21h 05m

Tamuning Guam Intl

Thu 1/22

7:40 am-3:52 pm

2 stops24h 12m

$2,018

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 1/11

6:45 am-7:05 pm

2 stops44h 20m

Tamuning Guam Intl

Sat 1/24

7:40 am-3:37 pm

2 stops23h 57m

$2,044

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Sun 1/11

4:35 pm-7:05 pm

2 stops34h 30m

Tamuning Guam Intl

Fri 1/23

7:40 am-3:52 pm

2 stops24h 12m

$2,046

St. LouisTamuning

STL - GUM

STLGUM

Lambert-St Louis

Mon 12/1

8:30 pm-11:05 pm

2 stops34h 35m

Tamuning Guam Intl

Mon 12/8

1:00 am-9:57 pm

2 stops36h 57m

$2,053

ChicagoTamuning

MDW - GUM

MDWGUM

Chicago Midway

Mon 12/1

5:34 pm-2:35 pm

2 stops29h 01m

Tamuning Guam Intl

Fri 1/16

1:00 am-10:09 pm

2 stops37h 09m

$2,128

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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

Direct flights

None
There are no direct flights from Illinois to Guam. There are no popular flight routes from Illinois to Guam.
Search flight deals

  • 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
9,001 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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