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Cheap flights from Idaho to Guam from $655

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Guam departing on 1/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Idaho to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:05 pm - 3:45 pm
BOI
-
GUM
55h 40m2 stops
United Airlines Logo
7:05 am - 9:54 am
GUM
-
BOI
18h 49m2 stops
$1,272United Airlines
Mon, Apr 27 - Fri, May 1
Delta Logo
4:55 pm - 11:05 pm
GEG
-
GUM
36h 10m2 stops
Delta Logo
1:00 am - 7:54 pm
GUM
-
GEG
36h 54m2 stops
$2,158Delta
Sun, Jan 18 - Fri, Jan 23
United Airlines Logo
6:53 am - 7:05 pm
GEG
-
GUM
42h 12m2 stops
United Airlines Logo
7:40 am - 10:44 am
GUM
-
GEG
21h 04m2 stops
$2,196United Airlines
Sun, Jan 18 - Sat, Jan 24
United Airlines Logo
5:00 am - 10:40 pm
GEG
-
GUM
23h 40m2 stops
United Airlines Logo
1:30 pm - 9:22 pm
GUM
-
GEG
25h 52m3 stops
$2,274United Airlines
Sun, Jan 18 - Sat, Jan 24
United Airlines Logo
7:00 am - 9:45 pm
GEG
-
GUM
20h 45m2 stops
United Airlines Logo
7:20 pm - 9:03 pm
GUM
-
GEG
43h 43m2 stops
$3,050United Airlines
Mon, Mar 2 - Wed, Mar 4

United Airlines flights from Idaho to Guam

Our best United Airlines deals on Idaho to Guam flight tickets
United Airlines
Apr 27
BOI4:05 pmBoise Air Term. Gowen Fld
55h 40m
2 stops
GUM3:45 pmTamuning Guam Intl
May 1
GUM7:05 amTamuning Guam Intl
18h 49m
2 stops
BOI9:54 amBoise Air Term. Gowen Fld
$1,272
Find similar
United Airlines
Jan 18
GEG6:53 amSpokane
42h 12m
2 stops
GUM7:05 pmTamuning Guam Intl
Jan 24
GUM7:40 amTamuning Guam Intl
21h 04m
2 stops
GEG10:44 amSpokane
$2,196
Find similar
United Airlines
Jan 18
GEG5:00 amSpokane
23h 40m
2 stops
GUM10:40 pmTamuning Guam Intl
Jan 24
GUM1:30 pmTamuning Guam Intl
25h 52m
3 stops
GEG9:22 pmSpokane
$2,274
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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 December 15, 2025.
Use the filters below to find and compare flights from Idaho to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Mon 4/27

4:05 pm-3:45 pm

2 stops55h 40m

Tamuning Guam Intl

Fri 5/1

7:05 am-9:54 am

2 stops18h 49m

$1,272

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sun 1/18

4:55 pm-11:05 pm

2 stops36h 10m

Tamuning Guam Intl

Fri 1/23

1:00 am-7:54 pm

2 stops36h 54m

$2,158

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sun 1/18

6:53 am-7:05 pm

2 stops42h 12m

Tamuning Guam Intl

Sat 1/24

7:40 am-10:44 am

2 stops21h 04m

$2,196

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sun 1/18

5:00 am-10:40 pm

2 stops23h 40m

Tamuning Guam Intl

Sat 1/24

1:30 pm-9:22 pm

3 stops25h 52m

$2,274

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Mon 3/2

7:00 am-9:45 pm

2 stops20h 45m

Tamuning Guam Intl

Wed 3/4

7:20 pm-9:03 pm

2 stops43h 43m

$3,050

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Tue 1/13

9:02 am-3:15 pm

3 stops37h 13m

$655

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Tue 1/13

9:02 am-2:35 pm

2 stops36h 33m

$936

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Wed 5/20

7:55 am-3:15 pm

2 stops38h 20m

$1,400

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 Idaho 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 airline that flies from Idaho to Guam?

Delta is the most popular carrier operating from Idaho to Guam

Cheap Idaho to Guam flight deals and tips

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

Fastest flight time

20h 45m

Direct flights

None
The fastest flight from Idaho to Guam takes 20h 45m
There are no direct flights from Idaho to Guam. There are no popular flight routes from Idaho to Guam.
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  • When did momondo last update prices for flights from Idaho to Guam?

    Prices for flights from Idaho to Guam are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Guam.

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

    The travel and health documents required for your trip to Guam can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Guam. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Idaho to Guam

Compare and see reviews for airlines that fly from Idaho to Guam with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $1,322Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Guam from Idaho.

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

Flights from Idaho to Guam with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Idaho and Guam by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Guam, momondo offers a useful price alert feature which will track prices for flights to Guam from Idaho and alert you when they change.

An easier way to manage your Guam trip

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Wed 1/14
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