$569 Find Cheap Flights from Seattle to Guam - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals
Booking Insights

Price, demand and travel trends for Seattle to Guam flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Seattle to Guam cheaper or more expensive than last year?

Fares from Seattle to Guam are running about 4% lower than they were around this time last year, averaging $1,888 round-trip.

What are the cheapest fares from Seattle to Guam right now?

The cheapest fare from Seattle to Guam in the last week was $1,143 round-trip, to Tamuning Guam Intl (GUM).

What’s the cheapest month to fly from Seattle to Guam?

January, March and October are tied for the cheapest time of the year to fly, with average fares of $1,594. Prices are highest in February, when average flight costs increase to around $2,589.

Which airport in Guam is the cheapest to fly to from Seattle?

All flights from Seattle to Guam arrive at Tamuning Guam Intl (GUM). On average, round-trip fares are around $1,899.

What’s the cheapest day to fly from Seattle to Guam?

Wednesday tends to be the cheapest day to fly from Seattle to Guam, while Monday is the most expensive. Fares run about 39% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Seattle to Guam?

Data from the past 12 months shows it's cheapest to fly to Guam during the afternoon with average prices of $1,678. The evening is the most expensive time to fly, with average prices of $2,756.

Key details for Seattle to Guam flights

Low season

September

Cheapest flight

$569
Beat the crowds with an average 62% drop in travelers.
One-way flight from Seattle to Tamuning

Your Seattle to Guam flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Seattle to Guam?

    Yes. Fares from Seattle to Guam are low right now. As a rule of thumb, a round-trip under $1,644 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Seattle to Guam?

    Over the past 12 months, round-trip fares from Seattle to Guam have ranged from $1,644 to $2,544.

  • What are the main airports serving Guam?

    Flights to Guam all arrive at Tamuning Guam Intl (GUM).

  • Which cabin classes are available on flights from Seattle to Guam?

    On flights from Seattle to Guam you can book Economy Class, Premium Economy Class or First Class.

  • What are some popular landmarks in Guam?

    KAYAK travelers' favorite landmarks in Guam include:

    • Tumon Bay
    • Dusit Thani Guam Resort and Convention Center

Your guide to booking Seattle to Guam flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid February when prices are at their highest.
  • Flying on Wednesday is usually the cheapest. Flights on Monday cost about 39% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Tamuning, which is the most popular destination in Guam. From there, it's easy to continue on to other popular destinations such as Yona, Dededo and Barrigada.

Reviews of the top airlines flying from Seattle to Guam

 
Need help choosing which airline to fly with from Seattle 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.
7.8
DeltaOverall score based on 8633 reviews
8.1Boarding
7.8Entertainment
7.8Comfort
8.5Crew
7.2Food
Airline reviews

Delay from Atlanta to Tampa was simply unacceptable. Multiple delays led to us landing after 3am. Worst travel experience of my life

6.0 GoodMichael, Oct 2026
Read more Delta reviews

Delay from Atlanta to Tampa was simply unacceptable. Multiple delays led to us landing after 3am. Worst travel experience of my life

I somehow thought my food preferences was saved to my account— everything had dairy and couldn’t eat anything.

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

The flight was done by SkyWest only WIFI no entertainment center are available on the CRJ

Everything worked smoothly, never had a concern with the flight from start to finish.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

Premium economy was worth it. Great seats and good food.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

More options for your flight from Seattle to Guam

Complete your trip to Guam with a hotel stay or car rental