$763 Find Cheap Flights from Portland to Guam

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Guam departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Portland to Guam Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Guam that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Guam

Mon, May 11 - Sun, May 31
Multiple Airlines Logo
8:45 am - 2:40 pm
PDX
-
GUM
36h 55m
2 stops
Multiple Airlines Logo
4:40 pm - 4:55 pm
GUM
-
PDX
41h 15m
2 stops
$1,844Multiple Airlines
Sun, May 10 - Sun, May 31
Multiple Airlines Logo
1:52 pm - 2:40 pm
PDX
-
GUM
55h 48m
2 stops
Multiple Airlines Logo
4:40 pm - 4:55 pm
GUM
-
PDX
41h 15m
2 stops
$1,850Multiple Airlines
Wed, Jun 10 - Sat, Jun 20
Multiple Airlines Logo
7:38 pm - 2:35 pm
PDX
-
GUM
49h 57m
2 stops
Multiple Airlines Logo
4:35 pm - 11:30 pm
GUM
-
PDX
47h 55m
2 stops
$2,107Multiple Airlines
Thu, Jun 11 - Wed, Jun 24
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
19h 50m
2 stops
United Airlines Logo
7:05 am - 12:22 pm
GUM
-
PDX
22h 17m
2 stops
$2,256United Airlines
Tue, Jun 2 - Tue, Jun 9
United Airlines Logo
6:03 pm - 6:05 pm
PDX
-
GUM
31h 02m
2 stops
United Airlines Logo
7:05 am - 8:54 pm
GUM
-
PDX
30h 49m
2 stops
$2,259United Airlines
Wed, Jun 10 - Sat, Jun 20
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
43h 50m
3 stops
United Airlines Logo
7:05 am - 10:20 am
GUM
-
PDX
20h 15m
2 stops
$2,335United Airlines
Tue, Jun 2 - Tue, Jun 9
United Airlines Logo
7:00 am - 6:05 pm
PDX
-
GUM
18h 05m
2 stops
United Airlines Logo
7:05 am - 12:09 pm
GUM
-
PDX
22h 04m
2 stops
$2,429United Airlines
Fri, May 22 - Fri, Jun 5
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
19h 50m
2 stops
United Airlines Logo
7:05 am - 10:20 am
GUM
-
PDX
20h 15m
2 stops
$2,479United Airlines
Sat, Jul 11 - Sun, Jul 26
Delta Logo
6:00 am - 11:55 pm
PDX
-
GUM
24h 55m
2 stops
Delta Logo
5:20 pm - 5:06 pm
GUM
-
PDX
40h 46m
2 stops
$2,480Delta
Thu, Jun 4 - Thu, Jun 11
Delta Logo
9:20 am - 3:35 pm
PDX
-
GUM
37h 15m
2 stops
Delta Logo
5:20 pm - 5:09 pm
GUM
-
PDX
40h 49m
2 stops
$2,560Delta
Booking Insights

KAYAK's insights & trends for Portland to Guam flights

Get data-powered insights and trends into flights from Portland to Guam to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to Guam?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Guam, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Guam is June, when tickets cost $1,602 (return) on average. On the other hand, the most expensive months are January and October, when the average cost of round-trip tickets is $3,349 and $2,474 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$763
Best time to beat the crowds but there is an average 46% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Portland to Tamuning

FAQs - booking Guam flights

  • How does KAYAK find such low prices on flights from Portland to Guam?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Guam.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Guam?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Guam is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Guam?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Guam with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Guam?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Guam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Guam

 
Need help choosing which airline to fly with from Portland to Guam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9684 reviews
7.7Boarding
6.6Food
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

4.0 OkayMaya, May 2026
IAH - MIA
Read more United Airlines reviews

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Everything you need to know for your flight from Portland to Guam

Information on your arrival and departure airports

Portland (PDX)