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Cheap flights from Idaho to Guam from $2,003

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 9/12. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Idaho to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:10 am - 3:35 pm
GEG
-
GUM
41h 25m
2 stops
Delta Logo
2:00 am - 7:15 pm
GUM
-
GEG
34h 15m
2 stops
$2,003Delta
Sat, Sep 12 - Fri, Sep 18
Delta Logo
7:05 am - 3:35 pm
GEG
-
GUM
39h 30m
2 stops
Delta Logo
5:20 pm - 5:00 pm
GUM
-
GEG
40h 40m
2 stops
$2,163Delta
Sun, Aug 9 - Sun, Aug 16
Delta Logo
7:05 am - 11:55 pm
GEG
-
GUM
23h 50m
2 stops
Delta Logo
5:20 pm - 9:16 pm
GUM
-
GEG
44h 56m
2 stops
$2,213Delta
Sat, Aug 8 - Sat, Aug 15
United Airlines Logo
7:02 am - 7:00 pm
GEG
-
GUM
41h 58m
2 stops
United Airlines Logo
7:45 am - 3:19 pm
GUM
-
GEG
25h 34m
2 stops
$2,607United Airlines
Wed, Dec 23 - Sat, Jan 2
United Airlines Logo
6:00 am - 6:05 pm
GEG
-
GUM
19h 05m
3 stops
United Airlines Logo
7:05 am - 3:06 pm
GUM
-
GEG
25h 01m
2 stops
$2,766United Airlines
Sun, Aug 9 - Sun, Aug 16
United Airlines Logo
3:54 pm - 6:05 pm
GEG
-
GUM
33h 11m
3 stops
United Airlines Logo
1:00 pm - 6:51 pm
GUM
-
GEG
22h 51m
2 stops
$2,775United Airlines
Sat, Sep 12 - Sat, Sep 19
United Airlines Logo
6:00 am - 6:05 pm
GEG
-
GUM
19h 05m
2 stops
United Airlines Logo
1:00 pm - 6:51 pm
GUM
-
GEG
22h 51m
3 stops
$2,835United Airlines
Sat, Aug 8 - Sat, Aug 15
United Airlines Logo
5:00 am - 9:45 pm
GEG
-
GUM
23h 45m
3 stops
United Airlines Logo
1:00 pm - 6:51 pm
GUM
-
GEG
22h 51m
3 stops
$2,854United Airlines
Sat, Aug 8 - Sat, Aug 15
United Airlines Logo
7:02 am - 9:45 pm
GEG
-
GUM
20h 43m
2 stops
United Airlines Logo
7:45 am - 12:40 pm
GUM
-
GEG
22h 55m
3 stops
$2,923United Airlines
Wed, Dec 23 - Sat, Jan 2
United Airlines Logo
3:54 pm - 6:05 pm
GEG
-
GUM
33h 11m
3 stops
United Airlines Logo
12:15 pm - 6:51 pm
GUM
-
GEG
23h 36m
3 stops
$3,139United Airlines
Sat, Sep 12 - Sat, Sep 19

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United Airlines flights from Idaho to Guam

Our best United Airlines deals on Idaho to Guam flight tickets
United Airlines
Dec 23
GEG7:02 amSpokane
41h 58m
2 stops
GUM7:00 pmTamuning Guam Intl
Jan 2
GUM7:45 amTamuning Guam Intl
25h 34m
2 stops
GEG3:19 pmSpokane
$2,607
United Airlines
Aug 9
GEG6:00 amSpokane
19h 05m
3 stops
GUM6:05 pmTamuning Guam Intl
Aug 16
GUM7:05 amTamuning Guam Intl
25h 01m
2 stops
GEG3:06 pmSpokane
$2,766
United Airlines
Sep 12
GEG3:54 pmSpokane
33h 11m
3 stops
GUM6:05 pmTamuning Guam Intl
Sep 19
GUM1:00 pmTamuning Guam Intl
22h 51m
2 stops
GEG6:51 pmSpokane
$2,775

Delta flights from Idaho to Guam

Our best Delta deals on Idaho to Guam flight tickets
Delta
Sep 12
GEG5:10 amSpokane
41h 25m
2 stops
GUM3:35 pmTamuning Guam Intl
Sep 18
GUM2:00 amTamuning Guam Intl
34h 15m
2 stops
GEG7:15 pmSpokane
$2,003
Delta
Aug 9
GEG7:05 amSpokane
39h 30m
2 stops
GUM3:35 pmTamuning Guam Intl
Aug 16
GUM5:20 pmTamuning Guam Intl
40h 40m
2 stops
GEG5:00 pmSpokane
$2,163
Delta
Aug 8
GEG7:05 amSpokane
23h 50m
2 stops
GUM11:55 pmTamuning Guam Intl
Aug 15
GUM5:20 pmTamuning Guam Intl
44h 56m
2 stops
GEG9:16 pmSpokane
$2,213

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 June 27, 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

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sat 9/12

5:10 am-3:35 pm

2 stops41h 25m

Tamuning Guam Intl

Fri 9/18

2:00 am-7:15 pm

2 stops34h 15m

$2,003

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sun 8/9

7:05 am-3:35 pm

2 stops39h 30m

Tamuning Guam Intl

Sun 8/16

5:20 pm-5:00 pm

2 stops40h 40m

$2,163

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sat 8/8

7:05 am-11:55 pm

2 stops23h 50m

Tamuning Guam Intl

Sat 8/15

5:20 pm-9:16 pm

2 stops44h 56m

$2,213

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Wed 12/23

7:02 am-7:00 pm

2 stops41h 58m

Tamuning Guam Intl

Sat 1/2

7:45 am-3:19 pm

2 stops25h 34m

$2,607

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sun 8/9

6:00 am-6:05 pm

3 stops19h 05m

Tamuning Guam Intl

Sun 8/16

7:05 am-3:06 pm

2 stops25h 01m

$2,766

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sat 9/12

3:54 pm-6:05 pm

3 stops33h 11m

Tamuning Guam Intl

Sat 9/19

1:00 pm-6:51 pm

2 stops22h 51m

$2,775
Quickest round-trip

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sat 8/8

6:00 am-6:05 pm

2 stops19h 05m

Tamuning Guam Intl

Sat 8/15

1:00 pm-6:51 pm

3 stops22h 51m

$2,835

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sat 8/8

5:00 am-9:45 pm

3 stops23h 45m

Tamuning Guam Intl

Sat 8/15

1:00 pm-6:51 pm

3 stops22h 51m

$2,854

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Wed 12/23

7:02 am-9:45 pm

2 stops20h 43m

Tamuning Guam Intl

Sat 1/2

7:45 am-12:40 pm

3 stops22h 55m

$2,923

SpokaneTamuning

GEG - GUM

GEGGUM

Spokane

Sat 9/12

3:54 pm-6:05 pm

3 stops33h 11m

Tamuning Guam Intl

Sat 9/19

12:15 pm-6:51 pm

3 stops23h 36m

$3,139

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

39h 30m

Direct flights

None
The fastest flight from Idaho to Guam takes 39h 30m
There are no direct flights from Idaho to Guam. There are no popular flight routes from Idaho to Guam.
Search flight deals

Frequently asked questions about flying from Idaho to Guam

  • When did momondo last update prices for flights from Idaho to Guam?

    Prices for flights from Idaho to Guam are updated daily.

  • 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.

Frequently asked questions about flying from Idaho to Guam

  • How do I get Price Alerts for flights from Idaho to Guam?

    Price Alerts will notify you by email when the price for flights to Guam from Idaho decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Idaho to Guam with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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.

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Popular flights according to clicks in the last 7 days on momondo
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