Delta offers free Wi-Fi for SkyMiles members, enhancing productivity during the 6-hour flight.
Delta Comfort Plus provides extra legroom and early boarding, ideal for a more comfortable journey.
Most accurate provider | FlightHub 3 stars |
---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $180 (Booking.com) |
One-way from | $100 (Mytrip) |
Popular in | July |
Cheapest in | January |
Average price | $297 |
Good round-trip deal | $295 or less |
Good one-way deal | $157 or less |
Fly from
Fly to
Route
Depart
Return
Price
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Mon 3/10
8:35 pm-7:02 pm
2 stops25h 27m
Seattle/Tacoma Intl
Wed 3/19
8:04 pm-9:16 pm
2 stops22h 12m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Wed 3/26
5:30 pm-8:54 pm
Nonstop6h 24m
Seattle/Tacoma Intl
Tue 4/1
3:45 pm-11:59 pm
Nonstop5h 14m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Mon 3/24
5:30 pm-8:54 pm
Nonstop6h 24m
Seattle/Tacoma Intl
Mon 4/14
12:30 pm-12:58 pm
2 stops21h 28m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Wed 3/5
7:10 am-10:45 am
Nonstop6h 35m
Seattle/Tacoma Intl
Sun 3/9
10:59 pm-7:26 am
Nonstop5h 27m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Mon 3/3
7:19 pm-10:38 pm
Nonstop6h 19m
Seattle/Tacoma Intl
Thu 3/6
11:48 pm-7:59 am
Nonstop5h 11m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Tue 3/4
2:00 pm-8:19 pm
1 stop9h 19m
Seattle/Tacoma Intl
Sun 3/9
7:10 pm-5:49 am
1 stop7h 39m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Wed 4/9
5:00 am-10:15 am
1 stop8h 15m
Seattle/Tacoma Intl
Wed 4/16
1:35 pm-11:59 pm
1 stop7h 24m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Sat 5/24
6:52 pm-10:00 pm
Nonstop6h 08m
Seattle/Tacoma Intl
Fri 5/30
3:40 pm-12:06 am
Nonstop5h 26m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Tue 3/25
2:00 pm-11:45 pm
1 stop12h 45m
Seattle/Tacoma Intl
Thu 4/10
5:35 am-5:55 pm
2 stops9h 20m
BostonSeattle
BOS - SEA
BOSSEA
Boston Logan Intl
Tue 3/25
2:10 pm-7:09 pm
3 stops31h 59m
Provider | Price Accuracy | Trust Score* |
---|---|---|
Price Accuracy1 star | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*2 stars | |
Price Accuracy3 stars | Trust Score*2 stars | |
Price Accuracy- | Trust Score*3 stars | |
Price Accuracy1 star | Trust Score*3 stars | |
Price Accuracy1 star | Trust Score*3 stars | |
Price Accuracy- | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*1 star |
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
The price you pay for your flight from Boston to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, January is the cheapest month in which you can book a flight from Boston to Seattle (average of $238). Flying from Boston to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Boston to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 32% on airfare.
Travelers seeking maximum savings on their Boston to Seattle flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from BOS to SEA are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).
In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).
Food
Comfort
Entertainment
Boarding
Overall
Crew
Reviews
Merlyn,Feb 2025
LAX - SMF
Food
Comfort
Entertainment
Boarding
Overall
Crew
Reviews
Merlyn,Feb 2025
LAX - SMF
Food
Comfort
Entertainment
Boarding
Overall
Crew
Reviews
Merlyn,Feb 2025
LAX - SMF
Food
Comfort
Entertainment
Boarding
Overall
Crew
Reviews
Merlyn,Feb 2025
LAX - SMF
Food
Comfort
Entertainment
Boarding
Overall
Crew
Reviews
Merlyn,Feb 2025
LAX - SMF
Food
Comfort
Entertainment
Boarding
Overall
Crew
Reviews
Merlyn,Feb 2025
LAX - SMF
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$144 | Average$403 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$153 | Average$337 | FlexibilityNo cancel fee | On-time85% | |
Cheapest$174 | Average$377 | FlexibilityNo cancel fee | On-time83% | |
Cheapest$181 | Average$413 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$192 | Average$289 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$209 | Average$454 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$211 | Average$456 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$238 | Average$421 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$396 | Average$521 | FlexibilityNo cancel fee | On-time63% |