Cheap flights from Seattle to Logan Intl

Round-trip
Economy
Seattle (SEA)
Boston (BOS)
Depart
Return
Any month
Compare vs. Cheapflights |

The best prices from Seattle to Logan Intl are usually found in January or February, booked 60 days in advance, depart on a Wednesday or Monday and return on a Wednesday

How to find the cheapest flight from
Seattle (SEA) to Logan Intl (BOS)

SEA - BOS
Price
C$ 264 - C$ 570
BOS
Temperature
4 - 29 °C
BOS
Rainfall
70 - 99 mm

Popular in

December

High demand for flights, 35% potential price rise

Cheapest in

January

Best time to find cheap flights, 29% potential price drop

Round-trip from

C$ 264

From Seattle to Logan Intl

One-way from

C$ 187

One-way flight from Seattle to Logan Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to Logan Intl?

Wednesday flights are generally found to be more expensive for flights from Seattle to Logan Intl. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Logan Intl.

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

Users have found that booking a flight from Seattle to Logan Intl at least 33 days early can save you up to 92% on average compared to booking a flight this week. If booking 33 days before your flight isn’t an option for you, users have found flights from Seattle to Logan Intl for as little as C$ 446 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 619 for flights departing within the next 3 days.

What is the cheapest month to fly from Seattle to Logan Intl?

March is one of the best times of the year to fly to Logan Intl from Seattle. Prices for March average C$ 333 per person but you can even find prices for as low as C$ 258. The most expensive prices can be found in the month of December. Opting for a March flight can save you 6% on your journey compared to booking in March

When is the cheapest time to fly from Seattle to Logan Intl (SEA - BOS)?

One of the essential ways to save on airfare from Seattle to Logan Intl is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 40% on airfare.

Cheap flights from Seattle to Logan Intl in March, April 2021

19 Mar - 21 Mar
C$ 251pp
SEA
Seattle/Tacoma Intl
JetBlue
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
JetBlue
Direct
SEA
Seattle/Tacoma Intl
21 Mar - 27 Mar
C$ 276pp
SEA
Seattle/Tacoma Intl
Delta
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Delta
Direct
SEA
Seattle/Tacoma Intl
22 Mar - 26 Mar
C$ 289pp
SEA
Seattle/Tacoma Intl
Delta
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Delta
Direct
SEA
Seattle/Tacoma Intl

Seattle to Logan Intl 2021 flight deals

19 Mar - 21 Mar
C$ 251pp
SEA
Seattle/Tacoma Intl
JetBlue
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
JetBlue
Direct
SEA
Seattle/Tacoma Intl
21 Mar - 27 Mar
C$ 276pp
SEA
Seattle/Tacoma Intl
Delta
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Delta
Direct
SEA
Seattle/Tacoma Intl
22 Mar - 26 Mar
C$ 289pp
SEA
Seattle/Tacoma Intl
Delta
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Delta
Direct
SEA
Seattle/Tacoma Intl

Direct flights to Logan Intl from Seattle

19 Mar - 21 Mar
C$ 251pp
SEA
Seattle/Tacoma Intl
JetBlue
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
JetBlue
Direct
SEA
Seattle/Tacoma Intl
21 Mar - 27 Mar
C$ 276pp
SEA
Seattle/Tacoma Intl
Delta
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Delta
Direct
SEA
Seattle/Tacoma Intl
22 Mar - 26 Mar
C$ 289pp
SEA
Seattle/Tacoma Intl
Delta
Direct
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Delta
Direct
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Logan Intl

11 Mar - 14 Mar
C$ 415pp
SEA
Seattle/Tacoma Intl
United Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
United Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
7 Mar - 21 Mar
C$ 432pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Delta
Direct
SEA
Seattle/Tacoma Intl
6 Mar - 15 Mar
C$ 434pp
SEA
Seattle/Tacoma Intl
United Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
United Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Logan Intl from Seattle

4:55 a.m. - 7:42 p.m.
United Airlines
1 stop
11h 47m
SEA - BOS
United Airlines
C$ 188
United
7:59 p.m. - 4:17 a.m.
JetBlue
Direct
5h 18m
SEA - BOS
JetBlue
C$ 216
8:50 a.m. - 3:25 a.m.
Alaska Airlines
2 stops
15h 35m
SEA - BOS
Alaska Airlines
C$ 248
Alaska Airlines

Related info for your journey

Flight FAQs

From Seattle to Logan Intl

Can I find flights from Seattle to Logan Intl for under C$ 255 on Cheapflights?

Yes, there are multiple flights from Seattle to Logan Intl for under C$ 255. The cheapest flight booked recently is on Delta for just C$ 251, but on average you can expect to pay C$ 321.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Boston Logan Intl to control the spread of COVID-19?

New policies can now be found on Alaska Airlines and Delta to help keep travellers safe while flying. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from Seattle/Tacoma Intl to Boston Logan Intl. Policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to Boston Logan Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Seattle/Tacoma Intl to Boston Logan Intl that may be offering flexible cancellation policies are JetBlue, Alaska Airlines, and Delta. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Are there direct flights from Seattle to Logan Intl for under C$ 255 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to Logan Intl under C$ 255. A good price for a direct flight from Seattle to Logan Intl is less than C$ 344.

Are there last-minute flights available from Seattle to Logan Intl for under C$ 509?

There are currently 12+ open flights from Seattle to Logan Intl within the next 7 days for less than C$ 509.

What days are direct flights available from Seattle to Boston?

Days when direct flights are available for this flight are: Wednesday, Thursday, Saturday.

How many flights depart from Seattle to Logan Intl on average per day?

On average 7 flights depart from Seattle/Tacoma Intl to Boston Logan Intl per day.
Morning (6am - Noon) - 14% of flight departures
Evening (6pm - Midnight) - 86% of flight departures

Does it rain more in Seattle or Boston?

When travelling, it's generally smart to pack in preparation for rain or any other conditions that may arise. The rainfall in Seattle is roughly similar to Boston. You can assume this to be the case over the next 22 days.

Is Seattle weather warmer or cooler than Boston?

Temperatures around the 29 °C's can be experienced in July. The weather in Boston is hotter than in Seattle. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Seattle to Logan Intl?

A quick flight from Seattle to Logan Intl can take about 5h 05m. Alaska Airlines provides one of the quickest options available for as low as C$ 394. The distance from Seattle to Logan Intl is about 4027 km. Most flights are nonstop.

What are the cheapest airlines to flying from Seattle to Logan Intl round-trip?

Delta, at C$ 251, was found to be the cheapest airline from Seattle to Logan Intl.Alternate airlines to your destination round-trip include Spirit Airlines and Alaska Airlines. Delta is currently priced 32% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Seattle to Logan Intl one-way?

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 127. United Airlines flights start at C$ 188 while deals on Alaska Airlines start at C$ 203 one-way.

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Destination information for Logan Intl

Flight duration
5h 47m
Average temperature for March in Logan Intl
9.0 °C
Avg rainfall for March in Logan Intl
99.0 mm

Airports servicing Seattle

Airports servicing Boston

Top 4 airlines flying from Seattle to Logan Intl

Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
C$ 118 C$ 226 No cancel fee N/A
Search Delta flights
American Airlines
C$ 117 C$ 240 No cancel fee 71%
Search American Airlines flights
Alaska Airlines
C$ 118 C$ 288 No cancel fee 75%
Search Alaska Airlines flights
JetBlue
C$ 156 C$ 391 No cancel fee 62%
Search JetBlue flights

Hourly flight availability from Seattle to Logan Intl

Morning 6 AM to noon 42% of flight departures
Afternoon Noon to 6 PM 42% of flight departures
Evening 6 PM to midnight 15% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Logan Intl
Sunday
1 daily flight
Monday
6 daily flights
Tuesday
0 flights
Wednesday
2 daily flights
Thursday
1 daily flight
Friday
4 daily flights
Saturday
1 daily flight
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