How many flights from Boston to Seattle are non-stop?

Across the trailing quarter, approximately 18.2% of flights from Boston to Seattle were non-stop. For routes that include stopovers, travelers typically experience a median of 2 stopovers. This indicates that a majority of the available flights on this route involve at least one connection. While direct options exist, they represent a smaller portion of the overall flight availability.

How long does it take to fly from Boston to Seattle?

A direct flight from Boston to Seattle typically takes approximately 6 hours and 23 minutes. This corresponds to a median flight duration of 383 minutes for non-stop journeys. For flights with one stop, the median travel time increases significantly to about 13 hours and 30 minutes, or 810 minutes. The distance covered on this route is approximately 4006 kilometers.

How often do Boston to Seattle flight prices drop?

Historically, flight prices for the Boston to Seattle route have shown frequent drops. This indicates that travelers may often find opportunities for price reductions. Monitoring this route can be beneficial for securing a more favorable fare. The frequent price adjustments are a consistent pattern observed in the trailing 30 days of data.

Flights From Boston

To Seattle

Cheap Flights from Boston to Seattle

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Deals from

Boston

RatePunk searches hundreds of travel sites at once for deals on flights to Seattle

Prices updated 7 days ago

483 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Oct 26, 2026.)

Today’s best flight deals from Boston to Seattle

Explore current cheapest deals departing from Boston to Seattle

2026-12-06 – 2026-12-16
BOS - Seattle
71% AI deal score
$285
$313
Round trip
2026-12-04 – 2026-12-16
BOS - Seattle
71% AI deal score
$279
$313
Round trip
2026-12-08 – 2026-12-16
BOS - Seattle
71% AI deal score
$294
$313
Round trip
2026-12-04 – 2026-12-14
BOS - Seattle
71% AI deal score
$285
$315
Round trip
2026-12-08 – 2026-12-14
BOS - Seattle
71% AI deal score
$308
$315
Round trip
2026-12-06 – 2026-12-14
BOS - Seattle
71% AI deal score
$294
$315
Round trip
2026-12-13 – 2026-12-16
BOS - Seattle
73% AI deal score
$324
$315
Round trip
2026-11-19 – 2026-11-24
BOS - Seattle
74% AI deal score
$338
$316
Round trip
2026-12-07 – 2026-12-12
BOS - Seattle
74% AI deal score
$319
$316
Round trip
2026-11-18 – 2026-11-21
BOS - Seattle
74% AI deal score
$344
$326
Round trip

Boston to Seattle: Overview

Insights for flights from Boston to Seattle

A typical journey from Boston to Seattle takes about 6h 23m, including connections. Given that most itineraries connect at least once, with a median of 2 stopovers when connecting, this duration reflects the overall travel time for this long-haul route. This journey covers a significant distance of 4006 km, classifying it as a long-haul flight.

For travelers looking for cheap flights from Boston to Seattle, fares typically range from $447–$1028, with a median of $693. Right now, current fares are above the typical level. There is a frequent appearance of new deals, suggesting that new offers show up almost daily.

The cheapest time to fly from Boston to Seattle is often in May, with a median fare of $395. Other cost-effective months include September, where the median fare is $432, and March, with a median fare of $437. These months present opportunities to find more budget-friendly options for your trip.

When flying from Boston to Seattle, most itineraries connect at least once, with only 18.2% of recent fares being direct flights from Boston to Seattle. For those itineraries that include connections, the typical number of stopovers is 2. This indicates that travelers should generally expect a journey involving at least one stop between these two cities.

How much is a round trip from Boston to Seattle

Regular price: $259 - $504

Prices for flights from Boston to Seattle are currently within the regular range.

The regular price range for this route is $259 to $504. The current lowest deal is $312 with Alaska Airlines, Inc. for travel from Dec 9 to Dec 16.

now $312

Low $259

High $504

The cheapest time to fly from Boston to Seattle

The cheapest month to fly from Boston to Seattle is September, with a median price of $432. The most expensive month is April, with a median price of $1007. Prices are generally lower from January to November.

September

Cheapest

Flights from $432

April

Most Expensive

Flights from $1,007

Jan

Feb

Mar

Apr

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boston to Seattle

Alaska Airlines, Inc.

Last-minute flights going from Boston to Seattle

Thu, Oct 29

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$731

One-way

Thu, Oct 29

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$731

One-way

Thu, Oct 29

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$731

One-way

Fri, Oct 30

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$730

One-way

Fri, Oct 30

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$730

One-way

Fri, Oct 30

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$730

One-way

Biggest price drops on these dates for flights from Boston to Seattle

4 nights

Nov 19 - Nov 23

$344 → $316

5 nights

Nov 18 - Nov 23

$337 → $314

3 nights

Nov 13 - Nov 16

$355 → $335

1 night

Nov 13 - Nov 14

$354 → $335

Popular Airports to fly from Boston to Seattle

Boston - Seattle route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for Boston to Seattle are above the typical level, with a median price of $693.

📅 Best time to fly

Fly in May for the best prices.

Historically, May offers the lowest median price at $395, followed by September at $432.

⏱️ Flight duration

Direct flights take 6h 23m.

The median flight duration for a direct flight from Boston to Seattle is 6h 23m.

✈️ Airlines & availability

Connecting flights are dominant.

Connecting flights make up 81.8% of available options, with a median of 2 stopovers.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights.

Alaska Airlines, Inc. has direct flights available for the Boston to Seattle route.

🎯 Booking tip

Deals are frequent on this route.

Deals for flights from Boston to Seattle are frequent, appearing within a 30-day window.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Fly from Boston Logan International to Seattle, offering a convenient departure for your journey.

📍 ~4 km from city center (reachable by car or public transport)

💸 Flights from ~$297

Seattle main airports to arrive at

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a key arrival airport for flights from Boston to Seattle.

📍 ~18 km from city center (reachable by car)

💸 Flights from ~$347

Airports nearby Seattle used as alternative

Paine Field Everett (PAE)

Paine Field Everett can be a useful alternative for travelers located in North Seattle or Snohomish County.

📍 ~30 km from Seattle (reachable by car)

💸 Flights from ~$336

Business & First Class Flight Deals to Seattle

79% AI deal score

$1,405

$1,208

Save $197

American Airlines

Business Class

From BOS

Elite

Dec 08

Seattle, United States

78% AI deal score

$1,387

$1,216

Save $171

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 07

Seattle, United States

76% AI deal score

$1,370

$1,287

Save $83

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 02

Seattle, United States

76% AI deal score

$1,371

$1,287

Save $84

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 02

Seattle, United States

76% AI deal score

$1,387

$1,287

Save $100

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 02

Seattle, United States

76% AI deal score

$1,371

$1,287

Save $84

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 02

Seattle, United States

76% AI deal score

$1,397

$1,287

Save $110

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 07

Seattle, United States

76% AI deal score

$1,370

$1,287

Save $83

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 07

Seattle, United States

76% AI deal score

$1,417

$1,306

Save $111

Porter Airlines, +1

Business Class

From BOS

Elite

Dec 02

Seattle, United States

76% AI deal score

$1,417

$1,306

Save $111

Porter Airlines, +1

Business Class

Frequently Asked Questions About Flights to Seattle

Historically, the optimal booking window for flights from Boston to Seattle is typically between 28 and 59 days prior to departure. During this period, the average price observed was $579. Prices tend to be significantly higher outside this window, with tickets purchased 0-6 days out averaging around $1026 and those booked 60+ days in advance also averaging approximately $1027. Planning your purchase within this timeframe can lead to more favorable pricing.

Based on historical data for flights from Boston to Seattle, a price of $447 or less is considered a good deal. The median price for this route across the trailing quarter was $693. Prices can vary, with 75% of tickets historically costing $1028 or less. Aiming for prices at or below the $447 threshold can help secure a more economical fare.

Historically, May has been the cheapest month to fly from Boston to Seattle, with a median price of $395. September also offers competitive pricing, with a median of $432. March, with a median price of $437, is another relatively inexpensive option. These months typically present better value compared to the annual median price of $693 for this route.

Boston to Seattle: Overview

Insights for flights from Boston to Seattle

How much is a round trip from Boston to Seattle

Regular price: $259 - $504

Prices for flights from Boston to Seattle are currently within the regular range.

The regular price range for this route is $259 to $504. The current lowest deal is $312 with Alaska Airlines, Inc. for travel from Dec 9 to Dec 16.

now $312

Low $259

High $504

The cheapest time to fly from Boston to Seattle

September

Cheapest

Flights from $432

April

Most Expensive

Flights from $1,007

Jan

Feb

Mar

Apr

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boston to Seattle

Alaska Airlines, Inc.

Last-minute flights going from Boston to Seattle

Thu, Oct 29

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$731

One-way

Thu, Oct 29

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$731

One-way

Thu, Oct 29

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$731

One-way

Fri, Oct 30

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$730

One-way

Fri, Oct 30

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$730

One-way

Fri, Oct 30

⌛ Last-Minute

BOS - Seattle

Boston (BOS) - Seattle (SEA)

Alaska Airlines, Inc.

$264

$730

One-way

Biggest price drops on these dates for flights from Boston to Seattle

4 nights

Nov 19 - Nov 23

$344 → $316

5 nights

Nov 18 - Nov 23

$337 → $314

3 nights

Nov 13 - Nov 16

$355 → $335

1 night

Nov 13 - Nov 14

$354 → $335

Popular Airports to fly from Boston to Seattle

Boston - Seattle route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for Boston to Seattle are above the typical level, with a median price of $693.

📅 Best time to fly

Fly in May for the best prices.

Historically, May offers the lowest median price at $395, followed by September at $432.

⏱️ Flight duration

Direct flights take 6h 23m.

The median flight duration for a direct flight from Boston to Seattle is 6h 23m.

✈️ Airlines & availability

Connecting flights are dominant.

Connecting flights make up 81.8% of available options, with a median of 2 stopovers.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights.

Alaska Airlines, Inc. has direct flights available for the Boston to Seattle route.

🎯 Booking tip

Deals are frequent on this route.

Deals for flights from Boston to Seattle are frequent, appearing within a 30-day window.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Fly from Boston Logan International to Seattle, offering a convenient departure for your journey.

📍 ~4 km from city center (reachable by car or public transport)

💸 Flights from ~$297

Seattle main airports to arrive at

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a key arrival airport for flights from Boston to Seattle.

📍 ~18 km from city center (reachable by car)

💸 Flights from ~$347

Airports nearby Seattle used as alternative

Paine Field Everett (PAE)

Paine Field Everett can be a useful alternative for travelers located in North Seattle or Snohomish County.

📍 ~30 km from Seattle (reachable by car)

💸 Flights from ~$336

Business & First Class Flight Deals to Seattle

Discover luxury on the budget with premium cabin class on flights from Boston to Seattle.

Elite

Best Elite deals to Seattle

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From BOS

Elite

Nov 16

Seattle, United States

84% AI deal score

$1,584

$1,187

Save $397

From BOS

Seattle, United States

76% AI deal score

$1,417

$1,306

Save $111

Porter Airlines, +1

Business Class

Frequently Asked Questions About Flights to Seattle

Cheap Flights from Boston to Seattle

Today’s best flight deals from Boston to Seattle

Boston to Seattle: Overview

Insights for flights from Boston to Seattle

How much is a round trip from Boston to Seattle

The cheapest time to fly from Boston to Seattle

Direct flights from Boston to Seattle

Last-minute flights going from Boston to Seattle

Biggest price drops on these dates for flights from Boston to Seattle

Popular Airports to fly from Boston to Seattle

Boston - Seattle route insights

Recent fares are above the typical level.

Fly in May for the best prices.

Direct flights take 6h 23m.

Connecting flights are dominant.

Alaska Airlines, Inc. offers direct flights.

Deals are frequent on this route.

Boston main airports to depart from

Seattle main airports to arrive at

Airports nearby Seattle used as alternative

Business & First Class Flight Deals to Seattle

Best Elite deals to Seattle

Nov 16

Nov 04

Dec 21

Dec 08

Dec 07

Dec 02

Dec 02

Dec 02

Dec 02

Dec 07

Dec 07

Dec 02

Frequently Asked Questions About Flights to Seattle

When should I buy Boston to Seattle tickets?

What is a good price for a flight from Boston to Seattle?

What's the cheapest month to fly from Boston to Seattle?

How many flights from Boston to Seattle are non-stop?

How long does it take to fly from Boston to Seattle?

How often do Boston to Seattle flight prices drop?

Related routes

More routes from Boston

Flights to Seattle from other cities

Boston to Seattle: Overview

Insights for flights from Boston to Seattle

How much is a round trip from Boston to Seattle

The cheapest time to fly from Boston to Seattle

Direct flights from Boston to Seattle

Last-minute flights going from Boston to Seattle

Biggest price drops on these dates for flights from Boston to Seattle

Popular Airports to fly from Boston to Seattle

Boston - Seattle route insights

Recent fares are above the typical level.

Fly in May for the best prices.

Direct flights take 6h 23m.

Connecting flights are dominant.

Alaska Airlines, Inc. offers direct flights.

Deals are frequent on this route.

Boston main airports to depart from

Seattle main airports to arrive at

Airports nearby Seattle used as alternative

Business & First Class Flight Deals to Seattle

Best Elite deals to Seattle

Nov 16

Nov 04

Dec 21

Dec 08

Dec 07

Dec 02

Dec 02

Dec 02

Dec 02

Dec 07

Dec 07

Dec 02

Frequently Asked Questions About Flights to Seattle

When should I buy Boston to Seattle tickets?

What is a good price for a flight from Boston to Seattle?

What's the cheapest month to fly from Boston to Seattle?