$572 Find Cheap Flights from Seattle 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 Seattle to Guam departing on 1/12. 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 Seattle 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 Seattle 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 Seattle to Guam

Mon, Feb 9 - Mon, Feb 23
Delta Logo
11:25 am - 11:05 pmSEA-GUM
17h 40m1 stop
Delta Logo
4:50 pm - 1:20 pmGUM-SEA
38h 30m1 stop
$1,544Delta
Find Deal
Mon, Feb 9 - Mon, Feb 23
Delta Logo
5:00 am - 11:05 pmSEA-GUM
24h 05m2 stops
Delta Logo
4:50 pm - 1:20 pmGUM-SEA
38h 30m1 stop
$1,548Delta
Find Deal
Mon, Feb 9 - Sun, Feb 22
Delta Logo
5:00 am - 11:05 pmSEA-GUM
24h 05m2 stops
Delta Logo
1:00 am - 8:46 pmGUM-SEA
37h 46m2 stops
$1,553Delta
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Sun, Feb 22 - Sun, Mar 8
Delta Logo
7:00 pm - 11:05 pmSEA-GUM
34h 05m2 stops
Delta Logo
4:50 pm - 1:20 pmGUM-SEA
38h 30m1 stop
$1,558Delta
Find Deal
Sun, Feb 22 - Sun, Mar 8
Delta Logo
7:00 pm - 11:05 pmSEA-GUM
34h 05m2 stops
Delta Logo
4:50 pm - 10:51 pmGUM-SEA
48h 01m2 stops
$1,562Delta
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Mon, Apr 6 - Sat, Apr 18
Delta Logo
12:45 pm - 3:15 pmSEA-GUM
33h 30m1 stop
Delta Logo
5:00 pm - 2:00 pmGUM-SEA
38h 00m1 stop
$1,594Delta
Find Deal
Mon, Apr 6 - Sat, Apr 18
Delta Logo
12:45 pm - 3:15 pmSEA-GUM
33h 30m1 stop
Delta Logo
5:00 pm - 11:26 pmGUM-SEA
47h 26m2 stops
$1,598Delta
Find Deal
Mon, Apr 6 - Sat, Apr 18
Delta Logo
11:59 pm - 3:15 pmSEA-GUM
46h 16m2 stops
Delta Logo
5:00 pm - 12:01 amGUM-SEA
48h 01m2 stops
$1,603Delta
Find Deal
Sun, Feb 22 - Sat, Mar 7
Delta Logo
4:40 pm - 11:05 pmSEA-GUM
36h 25m2 stops
Delta Logo
1:00 am - 1:20 pmGUM-SEA
30h 20m1 stop
$1,608Delta
Find Deal
Sun, Feb 22 - Sat, Mar 7
Delta Logo
7:00 pm - 11:05 pmSEA-GUM
34h 05m2 stops
Delta Logo
1:00 am - 11:01 pmGUM-SEA
40h 01m2 stops
$1,612Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Guam flights

Get data-powered insights and trends into flights from Seattle 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 Seattle to Guam?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 Seattle to Guam is October, when tickets cost $1,571 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $2,356 and $1,944 respectively.

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

The average price of all round-trip flights from Seattle to Guam clicked on KAYAK for each day over the last 12 months.

For Seattle to Guam, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Guam back to Seattle, the best deals are generally found on Monday, with Friday being the most expensive.

How far in advance should I book a flight from Seattle to Guam?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Guam, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Guam, you should book around 10 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$572
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Seattle to Tamuning

FAQs - booking Guam flights

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to Guam.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle 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 Seattle 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 Seattle 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 Seattle 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 Seattle to Guam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Guam?

    The cheapest time of day to fly to Guam is generally in the afternoon, when round-trip flights cost $1,776 on average. Morning departures are around 5% more expensive than evening flights, on average. The most expensive time of day to fly to Guam is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,903.

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.
7.9
DeltaOverall score based on 8010 reviews
8.1Boarding
7.3Food
8.5Crew
7.9Comfort
7.9Entertainment
Airline reviews

Good seats in Main cabin, excellent service and excellent landing

10.0 ExcellentAnonymous, Dec 2025SEA - MSP
Read more Delta reviews

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight and crew were great. United didn't inform crew of immigration process which was disappointing!

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

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

Information on your arrival and departure airports