$1,819 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 2/6. 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, Apr 20 - Mon, Apr 27
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
2 stops
United Airlines Logo
7:05 am - 12:26 pm
GUM
-
PDX
22h 21m
2 stops
$1,819United Airlines
Thu, Apr 30 - Wed, Jul 1
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
2 stops
United Airlines Logo
7:05 am - 10:03 am
GUM
-
PDX
19h 58m
2 stops
$1,869United Airlines
Thu, Apr 30 - Wed, Jul 1
United Airlines Logo
5:30 am - 9:45 pm
PDX
-
GUM
23h 15m
3 stops
United Airlines Logo
7:05 am - 10:03 am
GUM
-
PDX
19h 58m
2 stops
$1,896United 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 - 10:03 am
GUM
-
PDX
19h 58m
2 stops
$1,969United Airlines
Tue, Mar 17 - Tue, Mar 24
Delta Logo
7:05 am - 11:05 pm
PDX
-
GUM
23h 00m
2 stops
Delta Logo
4:50 pm - 8:59 pm
GUM
-
PDX
45h 09m
2 stops
$2,075Delta
Sat, Feb 28 - Sat, Mar 7
Delta Logo
5:30 am - 11:05 pm
PDX
-
GUM
23h 35m
2 stops
Delta Logo
4:50 pm - 6:03 pm
GUM
-
PDX
43h 13m
2 stops
$2,240Delta
Mon, Apr 20 - Mon, Apr 27
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
2 stops
United Airlines Logo
7:05 am - 6:07 pm
GUM
-
PDX
28h 02m
3 stops
$2,682United Airlines
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 February, when tickets cost $797 (return) on average. On the other hand, the most expensive months are August and January, when the average cost of round-trip tickets is $2,854 and $2,853 respectively.

Good to know

Low seasonMay
Cheapest flight$670
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 5% 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 9219 reviews
7.3Comfort
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

2.0 MediocreJames, Jan 2026
ORD - MSP
Read more United Airlines reviews

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

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

Information on your arrival and departure airports