Cheap Flights from Boston to Seattle
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Flights from Boston to Seattle
Cheapest airlines flights from Boston to Seattle
Fly from Boston to Seattle with 4 carriers, including Jetblue Airways, Alaska Airlines, and Hawaiian Airlines. Hawaiian Airlines offers the cheapest flights from Boston to Seattle.
Find cheap flights from Boston to Seattle
Non stop flights available! Find direct flights from Boston to Seattle within the next 3 months. Book one way flights from US$95 or round trip tickets from US$194.
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Round-trip
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One way
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Boston to Seattle Flight Information
The distance between Boston and Seattle is approximately 4,005.09 km. On average, a flight from Boston to Seattle takes around 6 hours 39 minutes. The most popular month to fly to Seattle is June. The off-season for travel is May.
| Cheapest one-way flight price | US$95 |
|---|---|
| Cheapest round-trip ticket price | US$187 |
| Off-season for travel | May |
| Peak season for travel | June |
| Flight distance | 4,005.09 km |
| Average flight time | 6 hours 39 minutes |
| Popular airline | Jetblue Airways |
When is the cheapest time to book flights from Boston to Seattle?
Best time for cheap flights from Boston to Seattle are between Aug 24 and Aug 31 with one way fares from US$95
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Frequently Asked Questions
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When are flight tickets from Boston (BOS) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from Boston to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Boston (BOS) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around $303. -
How long does it take to fly from Boston (BOS) to Seattle (SEA) and what is the distance?
It takes around 6 hours 39 minutes to fly from Boston (BOS) to Seattle (SEA). -
What are the most popular airlines that fly from Boston (BOS) to Seattle (SEA)?
Airlines with flights from Boston (BOS) to Seattle (SEA): Qatar Airways, El Al, Southwest Airlines, American Airlines, Virgin Atlantic, Jetblue Airways, United Airlines, Scandinavian Airlines, Air France, Alaska Airlines, Air Tahiti Nui, Hawaiian Airlines, Korean Air and TAP Air Portugal.
How to find a cheap flight from Boston to Seattle
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Boston to Seattle. Book your flights at the right time and save more.
Being flexible with your dates to get the cheapest Boston to Seattle ticket.
Tap "Date" on flight search bar to scan through the calender for Boston to Seattle airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Sat, Aug 30 at US$95 for one-way flights.
Compare cheap Boston to Seattle flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Boston to Seattle. The cheapest airline operating is Hawaiian Airlines.
Set up a Price Alert
By setting up a Price Alert for your Boston to Seattle route, you can easily track the price of your airline tickets from Boston to Seattle without manually checking every day.
Don't miss cheap Boston to Seattle flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Boston to Seattle to get exclusive deals for you.
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