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Cheap flights from Idaho to Guam from $1,385

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Guam departing on 8/29. 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 Idaho to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:05 am - 4:20 am
BOI
-
GUM
29h 15m
2 stops
United Airlines Logo
7:05 am - 1:35 pm
GUM
-
BOI
22h 30m
2 stops
$1,385United Airlines
Sat, Aug 29 - Mon, Aug 31
United Airlines Logo
6:58 pm - 4:25 am
BOI
-
GUM
41h 27m
2 stops
United Airlines Logo
7:05 am - 6:15 pm
GUM
-
BOI
27h 10m
2 stops
$1,546United Airlines
Sun, May 10 - Wed, May 13
United Airlines Logo
4:20 pm - 4:25 am
BOI
-
GUM
44h 05m
2 stops
United Airlines Logo
7:05 am - 9:54 am
GUM
-
BOI
18h 49m
2 stops
$1,616United Airlines
Mon, May 11 - Thu, May 14
United Airlines Logo
6:58 pm - 4:25 am
BOI
-
GUM
41h 27m
2 stops
United Airlines Logo
7:05 am - 9:54 am
GUM
-
BOI
18h 49m
2 stops
$1,716United Airlines
Mon, May 11 - Thu, May 14
Multiple Airlines Logo
2:22 pm - 2:40 pm
BOI
-
GUM
56h 18m
2 stops
Multiple Airlines Logo
4:40 pm - 11:59 pm
GUM
-
BOI
47h 19m
2 stops
$1,790Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Delta Logo
6:10 am - 3:35 pm
GEG
-
GUM
40h 25m
2 stops
Delta Logo
5:20 pm - 10:49 pm
GUM
-
GEG
46h 29m
2 stops
$2,008Delta
Mon, May 18 - Wed, Jun 3
Delta Logo
4:15 pm - 11:55 pm
GEG
-
GUM
38h 40m
2 stops
Delta Logo
5:20 pm - 7:17 pm
GUM
-
GEG
42h 57m
2 stops
$2,016Delta
Sun, May 17 - Mon, Jun 8
Delta Logo
6:10 am - 3:35 pm
GEG
-
GUM
40h 25m
2 stops
Delta Logo
5:20 pm - 4:57 pm
GUM
-
GEG
40h 37m
2 stops
$2,058Delta
Fri, May 22 - Mon, Jun 8
Delta Logo
7:23 pm - 11:55 pm
GEG
-
GUM
35h 32m
2 stops
Delta Logo
5:20 pm - 4:57 pm
GUM
-
GEG
40h 37m
2 stops
$2,066Delta
Sun, May 17 - Thu, Jun 4
Delta Logo
9:30 am - 3:35 pm
GEG
-
GUM
37h 05m
2 stops
Delta Logo
3:00 am - 6:43 pm
GUM
-
GEG
32h 43m
2 stops
$2,108Delta
Fri, May 22 - Thu, Jun 4

United Airlines flights from Idaho to Guam

Our best United Airlines deals on Idaho to Guam flight tickets
United Airlines
Aug 29
BOI7:05 amBoise Air Term. Gowen Fld
29h 15m
2 stops
GUM4:20 amTamuning Guam Intl
Aug 31
GUM7:05 amTamuning Guam Intl
22h 30m
2 stops
BOI1:35 pmBoise Air Term. Gowen Fld
$1,385
United Airlines
May 10
BOI6:58 pmBoise Air Term. Gowen Fld
41h 27m
2 stops
GUM4:25 amTamuning Guam Intl
May 13
GUM7:05 amTamuning Guam Intl
27h 10m
2 stops
BOI6:15 pmBoise Air Term. Gowen Fld
$1,546
United Airlines
May 11
BOI4:20 pmBoise Air Term. Gowen Fld
44h 05m
2 stops
GUM4:25 amTamuning Guam Intl
May 14
GUM7:05 amTamuning Guam Intl
18h 49m
2 stops
BOI9:54 amBoise Air Term. Gowen Fld
$1,616

Delta flights from Idaho to Guam

Our best Delta deals on Idaho to Guam flight tickets
Delta
May 18
GEG5:00 amSpokane
41h 35m
2 stops
GUM3:35 pmTamuning Guam Intl
Jun 3
GUM5:20 pmTamuning Guam Intl
42h 23m
2 stops
GEG6:43 pmSpokane
$2,008
Delta
May 17
GEG4:15 pmSpokane
38h 40m
2 stops
GUM11:55 pmTamuning Guam Intl
Jun 8
GUM5:20 pmTamuning Guam Intl
44h 49m
2 stops
GEG9:09 pmSpokane
$2,016
Delta
May 22
GEG9:30 amSpokane
37h 05m
2 stops
GUM3:35 pmTamuning Guam Intl
Jun 8
GUM5:20 pmTamuning Guam Intl
46h 34m
2 stops
GEG10:54 pmSpokane
$2,058

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 March 26, 2026.
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

Cheapest round-trip
Quickest round-trip

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Sat 8/29

7:05 am-4:20 am

2 stops29h 15m

Tamuning Guam Intl

Mon 8/31

7:05 am-1:35 pm

2 stops22h 30m

$1,385

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Sun 5/10

6:58 pm-4:25 am

2 stops41h 27m

Tamuning Guam Intl

Wed 5/13

7:05 am-6:15 pm

2 stops27h 10m

$1,546

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Mon 5/11

4:20 pm-4:25 am

2 stops44h 05m

Tamuning Guam Intl

Thu 5/14

7:05 am-9:54 am

2 stops18h 49m

$1,616

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Mon 5/11

6:58 pm-4:25 am

2 stops41h 27m

Tamuning Guam Intl

Thu 5/14

7:05 am-9:54 am

2 stops18h 49m

$1,716

BoiseTamuning

BOI - GUM

BOIGUM

Boise Air Term. Gowen Fld

Tue 4/21

2:22 pm-2:40 pm

2 stops56h 18m

Tamuning Guam Intl

Tue 4/28

4:40 pm-11:59 pm

2 stops47h 19m

$1,790

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Mon 5/18

6:10 am-3:35 pm

2 stops40h 25m

Tamuning Guam Intl

Wed 6/3

5:20 pm-10:49 pm

2 stops46h 29m

$2,008

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sun 5/17

4:15 pm-11:55 pm

2 stops38h 40m

Tamuning Guam Intl

Mon 6/8

5:20 pm-7:17 pm

2 stops42h 57m

$2,016

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Fri 5/22

6:10 am-3:35 pm

2 stops40h 25m

Tamuning Guam Intl

Mon 6/8

5:20 pm-4:57 pm

2 stops40h 37m

$2,058

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sun 5/17

7:23 pm-11:55 pm

2 stops35h 32m

Tamuning Guam Intl

Thu 6/4

5:20 pm-4:57 pm

2 stops40h 37m

$2,066

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Fri 5/22

9:30 am-3:35 pm

2 stops37h 05m

Tamuning Guam Intl

Thu 6/4

3:00 am-6:43 pm

2 stops32h 43m

$2,108

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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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

41h 27m

Direct flights

None
The fastest flight from Idaho to Guam takes 41h 27m
There are no direct flights from Idaho to Guam. There are no popular flight routes from Idaho to Guam.
Search flight deals

  • 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
9,484 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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