Q: How many flights are there between Boston and Seattle per day?

Each day, there are between 8 and 9 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 21m. The most common departure time is 4:00 p.m. and most flights take off in the morning. Each week, there are 62 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday. Visit our flight page for the latest deals!>/a>

Q: How many flights are there between Boston and Seattle per day?

Each day, there are between 8 and 9 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 21m. The most common departure time is 4:00 p.m. and most flights take off in the morning. Each week, there are 62 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday. Visit our flight page for the latest deals!>/a>

Q: What’s the cheapest day of the week to fly from Boston to Seattle?

For Boston to Seattle, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Boston, the best deals are generally found on Wednesday, with Sunday being the most expensive. Visit our flight page for the latest deals!>/a>

Q: What’s the cheapest day of the week to fly from Boston to Seattle?

For Boston to Seattle, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Boston, the best deals are generally found on Wednesday, with Sunday being the most expensive. Visit our flight page for the latest deals!>/a>

Q: What’s the earliest departure time from Boston to Seattle?

Early birds can take the earliest flight from Boston at 7:00 am and will be landing in Seattle at 10:20 am.

Question 1

How many flights are there between Boston and Seattle per day?

Accepted Answer

Each day, there are between 8 and 9 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 21m. The most common departure time is 4:00 p.m. and most flights take off in the morning. Each week, there are 62 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday. Visit our flight page for the latest deals!>/a>

Question 2

How many flights are there between Boston and Seattle per day?

Accepted Answer

Each day, there are between 8 and 9 nonstop flights that take off from Boston and land in Seattle, with an average flight time of 6h 21m. The most common departure time is 4:00 p.m. and most flights take off in the morning. Each week, there are 62 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday. Visit our flight page for the latest deals!>/a>

Question 3

Which airlines fly most frequently between Boston and Seattle?

Accepted Answer

Boston and Seattle are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (28 flights per week), Delta (20 flights per week), and JetBlue (14 flights per week). Visit our flight page for the latest deals!>/a>

Question 4

Which airlines fly most frequently between Boston and Seattle?

Accepted Answer

Boston and Seattle are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (28 flights per week), Delta (20 flights per week), and JetBlue (14 flights per week). Visit our flight page for the latest deals!>/a>

Question 5

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

Accepted Answer

For Boston to Seattle, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Boston, the best deals are generally found on Wednesday, with Sunday being the most expensive. Visit our flight page for the latest deals!>/a>

Question 6

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

Accepted Answer

For Boston to Seattle, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Seattle back to Boston, the best deals are generally found on Wednesday, with Sunday being the most expensive. Visit our flight page for the latest deals!>/a>

Question 7

What’s the earliest departure time from Boston to Seattle?

Accepted Answer

Early birds can take the earliest flight from Boston at 7:00 am and will be landing in Seattle at 10:20 am.

Question 8

What’s the latest departure time from Boston to Seattle?

Accepted Answer

If you prefer to fly at night, the latest flight from Boston to Seattle jets off at 6:59 pm and lands at 10:25 pm.

Question 9

Which airlines fly direct between Boston and Seattle?

Accepted Answer

There are 3 airlines that fly direc from Boston to Seattle. They are: Alaska Airlines, Delta and JetBlue. The cheapest price of all airlines flying this route was found with Alaska Airlines at C$ 339 for a round-trip flight. On average, the best prices for this route can be found at Alaska Airlines.

Question 10

Which airlines fly direct between Boston and Seattle?

Accepted Answer

There are 3 airlines that fly direc from Boston to Seattle. They are: Alaska Airlines, Delta and JetBlue. The cheapest price of all airlines flying this route was found with Alaska Airlines at C$ 339 for a round-trip flight. On average, the best prices for this route can be found at Alaska Airlines.

Question 11

Which airlines offer Wi-Fi service onboard planes from Boston to Seattle?

Accepted Answer

JetBlue, Alaska Airlines, Hawaiian Airlines, American Airlines, and Delta offer inflight Wi-Fi service on the Boston to Seattle flight route.

Question 12

Which aircraft models fly most regularly from Boston to Seattle?

Accepted Answer

The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Boston to Seattle flight route.

Question 13

Which airline alliances offer flights from Boston to Seattle?

Accepted Answer

oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Seattle, with SkyTeam being the most commonly used for this route.

Question 14

On which days can I fly direct from Boston to Seattle?

Accepted Answer

There are direct flights from Boston to Seattle on a daily basis.

Question 15

What is the cheapest month to fly from Boston to Seattle?

Accepted Answer

The cheapest month for flights from Boston to Seattle is January, where tickets cost C$ 325 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is C$ 641 and C$ 609 respectively.

Question 16

What is the cheapest month to fly from Boston to Seattle?

Accepted Answer

The cheapest month for flights from Boston to Seattle is January, where tickets cost C$ 325 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is C$ 641 and C$ 609 respectively.

Question 17

How does KAYAK find such low prices on flights from Boston to Seattle?

Accepted Answer

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 Boston to Seattle. <a href='/flight-routes/Boston-Logan-Intl-BOS/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 18

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

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Boston is likely to change within 7 days, so travelers know whether to wait or book now. <a href='/flight-routes/Boston-Logan-Intl-BOS/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 19

What is the Hacker Fare option on flights from Boston to Seattle?

Accepted Answer

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 to Seattle with an airline and back to Boston with another airline. <a href='/flight-routes/Boston-Logan-Intl-BOS/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 20

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Seattle?

Accepted Answer

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 to Seattle from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. <a href='/flight-routes/Boston-Logan-Intl-BOS/Seattle-Tacoma-Intl-SEA'>Visit our flight page for the latest deals!>/a>

Question 21

Which cabin class options are there for flights between Boston and Seattle?

Accepted Answer

There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 22

Which cabin class options are there for flights between Boston and Seattle?

Accepted Answer

There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 23

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

Accepted Answer

To get a below average price on the flight from Boston to Seattle, you should book around 3 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Question 24

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

Accepted Answer

To get a below average price on the flight from Boston to Seattle, you should book around 3 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Low season	January
High season	August

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KAYAK's insights & trends for Boston to Seattle flights

Get data-powered insights and trends into flights from Boston to Seattle to help you find the cheapest flights, the best time to fly and much more.

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

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

What is the cheapest month to fly from Boston to Seattle?

The cheapest month for flights from Boston to Seattle is January, where tickets cost C$ 325 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is C$ 641 and C$ 609 respectively.

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

To get a below average price on the flight from Boston to Seattle, you should book around 3 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Which airlines fly most frequently between Boston and Seattle?

Boston and Seattle are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (28 flights per week), Delta (20 flights per week), and JetBlue (14 flights per week).

Which airlines fly direct between Boston and Seattle?

Which cabin class options are there for flights between Boston and Seattle?

There are 3 cabin class options for the route. These are First, Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How many flights are there between Boston and Seattle per day?

What’s the earliest departure time from Boston to Seattle?

Early birds can take the earliest flight from Boston at 7:00 am and will be landing in Seattle at 10:20 am.

What’s the latest departure time from Boston to Seattle?

If you prefer to fly at night, the latest flight from Boston to Seattle jets off at 6:59 pm and lands at 10:25 pm.

Good to know

When to book flights from Boston to Seattle

Flights from Boston to Seattle: the best tips from KAYAK users' own experiences

FAQs for booking flights from Boston to Seattle

Which airlines offer Wi-Fi service onboard planes from Boston to Seattle?

JetBlue, Alaska Airlines, Hawaiian Airlines, American Airlines, and Delta offer inflight Wi-Fi service on the Boston to Seattle flight route.

Which aircraft models fly most regularly from Boston to Seattle?

The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Boston to Seattle flight route.

Which airline alliances offer flights from Boston to Seattle?

oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and Seattle, with SkyTeam being the most commonly used for this route.

On which days can I fly direct from Boston to Seattle?

There are direct flights from Boston to Seattle on a daily basis.

How does KAYAK find such low prices on flights from Boston to Seattle?

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 Boston to Seattle.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Boston 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 Boston to Seattle?

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 to Seattle with an airline and back to Boston with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Seattle?

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 to Seattle from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Seattle

Prefer to fly direct from Boston to Seattle?

Reviews of the top airline flying from Boston to Seattle

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

Information on your arrival and departure airports

Cabin class types available on flights from Boston to Seattle

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

Find direct flights to and from Boston and Seattle

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