$1,504 Find Cheap Flights from Boston to Guam - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Price, demand and travel trends for Boston to Guam flights

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

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

The cheapest fare from Boston to Guam in the last week was $1,504 round-trip, to Tamuning Guam Intl (GUM).

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

All flights from Boston to Guam arrive at Tamuning Guam Intl (GUM). On average, round-trip fares are around $2,431.

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

Data from the past 12 months shows it's cheapest to fly to Guam during the evening with average prices of $1,993. The morning is the most expensive time to fly, with average prices of $2,554.

Key details for Boston to Guam flights

Low season

March

Cheapest flight

$1,504
Beat the crowds with an average 47% drop in travelers.
Round-trip flight from Boston to Tamuning

Your Boston 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 Boston to Guam?

    Yes. Fares from Boston to Guam are low right now. As a rule of thumb, a round-trip under $2,129 (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 Boston to Guam?

    Over the past 12 months, round-trip fares from Boston to Guam have ranged from $2,129 to $3,283.

  • 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 Boston to Guam?

    On flights from Boston to Guam you can only book Economy 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 Boston 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 June when flights are typically cheapest and avoid July when prices are at their highest.
  • Flying on Friday is usually the cheapest. Flights on Sunday cost about 61% 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 airline flying from Boston to Guam

 
Need help choosing which airline to fly with from Boston 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 10302 reviews
6.7Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

Very disappointing that on an international business class flight they would not give me access to the lounge in Boston. They said it was because it was a codeshare flight. International business class should include lounge access regardless of codeshare.

6.0 GoodAnonymous, Sep 2026
Read more United Airlines reviews

Very disappointing that on an international business class flight they would not give me access to the lounge in Boston. They said it was because it was a codeshare flight. International business class should include lounge access regardless of codeshare.

Great, except the canon was so cold. Even the flight attendants put jackets on

The app logs you out right when you are boarding requiring all passwords and reservation number for the flight. Super annoying

The pre-order only approach for fresh food is really challenging

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

I would have preferred a flight voucher and to hop on a different flight. Delayed over 6 hours.

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

It was Swiss. Our kosher meals were literally frozen solid and therefore inedible, and the crew didnt care.

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.

The flight was delayed, they didn’t even have water for the toilets or for drinks

More options for your flight from Boston to Guam

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