$775 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 7/14. 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

Tue, Oct 13 - Wed, Oct 21
Multiple Airlines Logo
8:06 am - 2:40 pm
PDX
-
GUM
37h 34m
2 stops
Multiple Airlines Logo
4:40 pm - 9:47 am
GUM
-
PDX
58h 07m
2 stops
$1,222Multiple Airlines
Fri, Oct 2 - Sat, Oct 10
Multiple Airlines Logo
9:32 pm - 2:40 pm
PDX
-
GUM
48h 08m
2 stops
Multiple Airlines Logo
4:40 pm - 9:47 am
GUM
-
PDX
58h 07m
2 stops
$1,297Multiple Airlines
Fri, Oct 2 - Thu, Oct 8
Multiple Airlines Logo
9:32 pm - 2:40 pm
PDX
-
GUM
48h 08m
2 stops
Multiple Airlines Logo
4:40 pm - 9:47 am
GUM
-
PDX
58h 07m
2 stops
$1,347Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
5:41 pm - 2:35 pm
PDX
-
GUM
51h 54m
2 stops
Multiple Airlines Logo
4:35 pm - 7:50 pm
GUM
-
PDX
44h 15m
2 stops
$1,431Multiple Airlines
Mon, Jul 13 - Mon, Jul 20
Multiple Airlines Logo
6:19 am - 2:35 pm
PDX
-
GUM
39h 16m
2 stops
Multiple Airlines Logo
4:35 pm - 7:37 am
GUM
-
PDX
56h 02m
2 stops
$1,544Multiple Airlines
Tue, Sep 8 - Fri, Sep 25
Multiple Airlines Logo
6:20 am - 2:35 pm
PDX
-
GUM
39h 15m
2 stops
Multiple Airlines Logo
4:35 pm - 6:38 pm
GUM
-
PDX
43h 03m
2 stops
$1,576Multiple Airlines
Fri, Jul 3 - Thu, Jul 9
Multiple Airlines Logo
5:30 pm - 2:35 pm
PDX
-
GUM
52h 05m
2 stops
Multiple Airlines Logo
4:35 pm - 11:30 pm
GUM
-
PDX
47h 55m
2 stops
$1,606Multiple Airlines
Sun, Aug 2 - Sun, Aug 9
Multiple Airlines Logo
9:30 pm - 2:35 pm
PDX
-
GUM
48h 05m
2 stops
Multiple Airlines Logo
4:35 pm - 11:30 pm
GUM
-
PDX
47h 55m
2 stops
$1,653Multiple Airlines
Tue, Oct 20 - Tue, Oct 27
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
2 stops
United Airlines Logo
7:25 am - 6:31 pm
GUM
-
PDX
28h 06m
2 stops
$1,819United Airlines
Sun, Oct 18 - Mon, Oct 26
United Airlines Logo
9:00 am - 6:05 pm
PDX
-
GUM
40h 05m
2 stops
United Airlines Logo
7:25 am - 6:31 pm
GUM
-
PDX
28h 06m
2 stops
$1,835United 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 May, when tickets cost $0 (return) on average. On the other hand, the most expensive months are January and August, when the average cost of round-trip tickets is $3,349 and $2,854 respectively.

Good to know

Low seasonJune
Cheapest flight$775
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 12% 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 9859 reviews
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
Airline reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

4.0 OkayDavid, Jun 2026
FAR - DEN
Read more United Airlines reviews

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

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

Information on your arrival and departure airports