Cheap flights from Boston to Seattle from $135
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Seattle departing on 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Boston to Seattle by changing tabs
Find the cheapest one-way flights from Boston to Seattle
If you're looking for one-way flights from Boston to Seattle, view some of our deals below provided by Alaska Airlines, JetBlue and Spirit Airlines
Search last-minute flights to Seattle from Boston
Find and compare round-trip flight prices for your last-minute flight from Boston to Seattle
Best airlines flying from Boston to Seattle
Compare and see reviews for airlines that fly from Boston to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $115 | Free Cancellation | Rating 6.4 8,711 reviews | |||
| PriceFrom $129 | Free Cancellation | Rating 7.6 4,530 reviews | |||
| PriceFrom $138 | Free Cancellation | Rating 8.0 10,810 reviews | |||
| PriceFrom $138 | Free Cancellation | Rating 7.4 11,073 reviews | |||
| PriceFrom $139 | Free Cancellation | Rating 8.0 9,147 reviews | |||
| PriceFrom $173 | Free Cancellation | Rating 7.2 641 reviews | |||
| PriceFrom $203 | Free Cancellation | Rating 7.3 14,686 reviews |
Delta Flights From Boston to Seattle
Delta flies from Boston to Seattle around 20 times per week, with 10,810 momondo users rating the airline 8.0/10. The cheapest Delta deal from Boston to Seattle in the last 72 hours was $138 (round-trip), much lower than the average airfare cost of $381 for Delta flights on this route.
Alaska Airlines Flights From Boston to Seattle
The best Alaska Airlines deal for Boston to Seattle flight tickets found on momondo in the last 72 hours was $139, round-trip. It should be noted that an average Alaska Airlines flight deal for this route in this time was higher, at $381 round-trip. Alaska Airlines operates 14 flights out of Boston into Seattle in an average week, so prices vary by time and availability. 9,147 Alaska Airlines reviews by users on momondo have scored the airline at 8.0/10.
American Airlines flights from Boston to Seattle
Our best American Airlines deals on Boston to Seattle flight tickets
Sun Country Air flights from Boston to Seattle
Our best Sun Country Air deals on Boston to Seattle flight tickets
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 from Boston to Seattle?
January. The cheapest time of year to fly to Seattle from Boston is January. Most expensive is June
What is the cheapest day to depart Boston for Seattle?
Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
When is the cheapest time to fly from Boston to Seattle?
In the evening. Boston to Seattle flights are approximately 34% more expensive in the morning than in the evening
What is the cheapest airline that flies to Seattle from Boston?
Spirit Airlines. Alaska Airlines, JetBlue, and Spirit Airlines are the most popular carriers operating from Boston to Seattle
What is the cheapest Boston to Seattle flight route?
Boston Logan Intl - Seattle/Tacoma Intl. Fly from Boston Logan Intl to Seattle/Tacoma Intl for the best Boston - Seattle flight prices
How far in advance should you book Boston to Seattle flights?
36 days before. The cheapest time to buy a flight from Boston to Seattle is approximately 36 days to departure
How many flights depart from Boston to Seattle on average per day?
As of May 2024, there are 22 flights per week flying from Boston to Seattle. The most common time of day flights depart is 10:00AM, with 48% of flights taking off at noon.
How many flights depart from Boston to Seattle on average per week?
The number of flights available between Boston and Seattle is 158 per week as of May 2024. The most frequent departure day is Tuesday, with 16% of weekly flights leaving on this day.
What cabin class options are available on Boston to Seattle flights?
There are 4 cabin classes available to choose from on Boston to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Boston to Seattle flights?
You could potentially save up to 40% on your flight if you consider stops on a Boston to Seattle flight.
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
Best Price Found | $135 |
|---|---|
Fastest flight time | 6h 05m |
Direct flights | Every day |
Airports in Seattle | 1 airport |
How far is Boston Logan Intl to Seattle/Tacoma Intl by plane?
The straight-line distance from Boston Logan Intl to Seattle/Tacoma Intl is 2484.0 mi. Flights usually cover this in 6h 05m, depending on flying conditions and air traffic around both airports.
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 are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport?
As of May 2024, there are 8 operators available to choose from for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport.
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 layovers. 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 travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why 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?
Yes. momondo allows you to filter the results for Boston to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from Boston to Seattle?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Boston.
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.