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Cheap flights from Portland to Tamuning from $645

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Tamuning departing on 8/9. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Tamuning

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:09 am - 3:35 pm
PDX
-
GUM
39h 26m
2 stops
Multiple Airlines Logo
2:00 am - 7:50 pm
GUM
-
PDX
34h 50m
2 stops
$1,228Multiple Airlines
Fri, Sep 4 - Thu, Sep 10
Alaska Airlines Logo
4:07 pm - 2:35 pm
PDX
-
GUM
52h 28m
2 stops
Alaska Airlines Logo
4:35 pm - 1:14 pm
GUM
-
PDX
38h 39m
2 stops
$1,455Alaska Airlines
Thu, Nov 5 - Mon, Nov 9
Alaska Airlines Logo
6:05 am - 2:35 pm
PDX
-
GUM
38h 30m
2 stops
Alaska Airlines Logo
4:35 pm - 4:50 pm
GUM
-
PDX
42h 15m
2 stops
$1,576Alaska Airlines
Thu, Nov 5 - Mon, Nov 9
Multiple Airlines Logo
6:20 am - 2:35 pm
PDX
-
GUM
39h 15m
2 stops
Multiple Airlines Logo
4:35 pm - 11:55 pm
GUM
-
PDX
48h 20m
2 stops
$1,645Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Alaska Airlines Logo
5:05 am - 2:35 pm
PDX
-
GUM
39h 30m
2 stops
Alaska Airlines Logo
4:35 pm - 8:50 pm
GUM
-
PDX
46h 15m
2 stops
$1,741Alaska Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
2 stops
United Airlines Logo
7:55 pm - 10:44 pm
GUM
-
PDX
44h 49m
2 stops
$1,844United Airlines
Thu, Oct 22 - Sun, Nov 15
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
2 stops
United Airlines Logo
7:10 am - 10:11 am
GUM
-
PDX
20h 01m
3 stops
$2,716United Airlines
Fri, Sep 4 - Fri, Sep 11
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
3 stops
United Airlines Logo
7:10 am - 10:11 am
GUM
-
PDX
20h 01m
3 stops
$2,768United Airlines
Wed, Sep 9 - Wed, Sep 16
United Airlines Logo
7:00 am - 6:05 pm
PDX
-
GUM
18h 05m
2 stops
United Airlines Logo
7:45 am - 6:29 pm
GUM
-
PDX
28h 44m
3 stops
$2,790United Airlines
Thu, Oct 22 - Sun, Nov 15
United Airlines Logo
6:53 am - 7:00 pm
PDX
-
GUM
18h 07m
2 stops
United Airlines Logo
7:45 am - 6:29 pm
GUM
-
PDX
28h 44m
3 stops
$2,976United Airlines
Thu, Nov 5 - Mon, Nov 9

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Alaska Airlines flights from Portland to Tamuning

Our best Alaska Airlines deals on Portland to Tamuning flight tickets
Alaska Airlines
Nov 5
PDX4:07 pmPortland
52h 28m
2 stops
GUM2:35 pmTamuning Guam Intl
Nov 9
GUM4:35 pmTamuning Guam Intl
38h 39m
2 stops
PDX1:14 pmPortland
$1,455
Alaska Airlines
Nov 5
PDX6:05 amPortland
38h 30m
2 stops
GUM2:35 pmTamuning Guam Intl
Nov 9
GUM4:35 pmTamuning Guam Intl
42h 15m
2 stops
PDX4:50 pmPortland
$1,576
Alaska Airlines
Nov 5
PDX5:05 amPortland
39h 30m
2 stops
GUM2:35 pmTamuning Guam Intl
Nov 9
GUM4:35 pmTamuning Guam Intl
46h 15m
2 stops
PDX8:50 pmPortland
$1,741

United Airlines flights from Portland to Tamuning

Our best United Airlines deals on Portland to Tamuning flight tickets
United Airlines
Oct 22
PDX5:30 amPortland
19h 35m
2 stops
GUM6:05 pmTamuning Guam Intl
Nov 15
GUM7:55 pmTamuning Guam Intl
44h 49m
2 stops
PDX10:44 pmPortland
$1,844
United Airlines
Sep 4
PDX5:30 amPortland
19h 35m
2 stops
GUM6:05 pmTamuning Guam Intl
Sep 11
GUM7:10 amTamuning Guam Intl
20h 01m
3 stops
PDX10:11 amPortland
$2,716
United Airlines
Sep 9
PDX5:30 amPortland
19h 35m
3 stops
GUM6:05 pmTamuning Guam Intl
Sep 16
GUM7:10 amTamuning Guam Intl
20h 01m
3 stops
PDX10:11 amPortland
$2,768

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Tamuning 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 July 21, 2026.
Use the filters below to find and compare flights from Portland to Tamuning that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 9/4

7:09 am-3:35 pm

2 stops39h 26m

Tamuning Guam Intl

Thu 9/10

2:00 am-7:50 pm

2 stops34h 50m

$1,228

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 11/5

4:07 pm-2:35 pm

2 stops52h 28m

Tamuning Guam Intl

Mon 11/9

4:35 pm-1:14 pm

2 stops38h 39m

$1,455

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 11/5

6:05 am-2:35 pm

2 stops38h 30m

Tamuning Guam Intl

Mon 11/9

4:35 pm-4:50 pm

2 stops42h 15m

$1,576

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 9/9

6:20 am-2:35 pm

2 stops39h 15m

Tamuning Guam Intl

Wed 9/16

4:35 pm-11:55 pm

2 stops48h 20m

$1,645

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 11/5

5:05 am-2:35 pm

2 stops39h 30m

Tamuning Guam Intl

Mon 11/9

4:35 pm-8:50 pm

2 stops46h 15m

$1,741

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 10/22

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Sun 11/15

7:55 pm-10:44 pm

2 stops44h 49m

$1,844
Quickest round-trip

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 9/4

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Fri 9/11

7:10 am-10:11 am

3 stops20h 01m

$2,716

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 9/9

5:30 am-6:05 pm

3 stops19h 35m

Tamuning Guam Intl

Wed 9/16

7:10 am-10:11 am

3 stops20h 01m

$2,768

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 10/22

7:00 am-6:05 pm

2 stops18h 05m

Tamuning Guam Intl

Sun 11/15

7:45 am-6:29 pm

3 stops28h 44m

$2,790

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 11/5

6:53 am-7:00 pm

2 stops18h 07m

Tamuning Guam Intl

Mon 11/9

7:45 am-6:29 pm

3 stops28h 44m

$2,976

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 Tamuning from

How to get the cheapest flight ticket from Portland to Tamuning

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 typical price of a round-trip flight between Portland and Tamuning?

What is the cheapest month to fly to Tamuning?

The month of May is, on average, the cheapest month to fly to Tamuning from Portland, with most prices found around $0. If you aren’t able to travel during the month of May, then book flights to Tamuning from Portland during September instead. Flights to Tamuning in September, while not as cheap as those in May, still average around $1,914.

When to book flights from Portland to Tamuning

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Tamuning according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Tamuning (PDX to GUM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Tamuning

Fastest flight time

19h 30m

Direct flights

None
The fastest flight from Portland to Tamuning takes 19h 30m
There are no direct flights from Portland to Tamuning. There are no popular flight routes from Portland to Tamuning.
Search flight deals

Frequently asked questions about flying from Portland to Tamuning

  • How far is Portland to Tamuning Guam Intl by plane?

    A flight from Portland to Tamuning Guam Intl will travel around 5673.6 mi. A reasonable flight in good conditions will take 19h 30m.

  • When did momondo last update prices for flights from Portland Airport to Tamuning Guam Intl Airport?

    Prices for flights from Portland Airport to Tamuning Guam Intl Airport refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Tamuning Guam Intl Airport?

  • How old do you have to be to fly from Portland Airport to Tamuning Guam Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Tamuning Guam Intl Airport.

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

    The required travel and health documents for your Tamuning Guam Intl Airport 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 Tamuning Guam Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Portland to Tamuning?

Best airlines flying from Portland to Tamuning

Compare and see reviews for airlines that fly from Portland to Tamuning with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $1,817Free CancellationRating
7.4
10,011 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Tamuning?

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 Tamuning from Portland.

Can I find flights from Portland to Tamuning with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Tamuning from Portland with this policy.

How can momondo help me find flights from Portland to Tamuning?

momondo provides multiple filters to help you find the best flight to Tamuning from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Tamuning from Portland. 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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