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How to get the cheapest flight ticket from Boston to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
The cheapest month to fly to Seattle from Boston is in January. Flight prices, which tend to average around R4 329, are often lower during this time because this is during the off-season. If you aren’t able to travel to Seattle during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of R5 430.
What is the cheapest day to depart on your flight to Seattle?
The cheapest day to depart from Boston to Seattle is on a Monday. Travellers who choose to depart for Seattle on a Monday will often find tickets for as low as R0. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Tuesday is R6 105.
What is the cheapest Boston Logan Intl to Seattle/Tacoma Intl flight route?
Fly from Boston Logan Intl to Seattle/Tacoma Intl for the best Boston Logan Intl - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Boston when booking 14 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around R6 781 when searching 14 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Boston for as low as R6 383 on momondo.
What cabin class options are available on Boston Logan Intl to Seattle/Tacoma Intl flights?
There are 2 cabin classes available to choose from on Boston Logan Intl to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How have Boston to Seattle flight prices changed over time?
As of February 2025, prices for Boston to Seattle flights are approximately 1% cheaper when compared to flights at the same time last year.
When to book flights from Boston to Seattle
Cheap Boston to Seattle (BOS to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Boston to Seattle
How far is Boston Logan Intl to Seattle/Tacoma Intl by plane?
Boston Logan Intl and Seattle/Tacoma Intl are 3997,7 km apart from one another.
When did momondo last update prices for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Boston to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Boston to Seattle is Airbus A321neo, representing 27,95% of all bookings. The subsequent popular models are Airbus A318/A319/A320/A321 at 22,48%, Boeing 737 at 21,74%, and Boeing 737-900 Passenger/BBJ3 (winglets) at 6,61%.
Travelling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Boston to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Boston to Seattle with flexible booking policies on momondo?
All flight searches from Boston to Seattle on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Boston to Seattle?
Once all potential Boston to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Boston to Seattle right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Boston and alert you when they change.