
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $292 (Alaska Airlines) |
One-way from | $154 (Delta) |
Popular in | December |
Cheapest in | March |
Average price | $323 |
Fly from
Fly to
Route
Depart
Return
Price
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Wed 5/27
3:55 pm-12:23 am
Nonstop5h 28m
Boston Logan Intl
Fri 6/5
6:35 pm-10:05 pm
Nonstop6h 30m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Sat 2/28
10:20 pm-6:50 am
Nonstop5h 30m
Boston Logan Intl
Thu 3/5
10:03 am-10:22 pm
1 stop15h 19m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Mon 3/2
2:00 pm-7:30 am
1 stop14h 30m
Boston Logan Intl
Tue 3/3
6:57 pm-10:25 pm
Nonstop6h 28m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Wed 3/25
10:25 pm-6:50 am
Nonstop5h 25m
Boston Logan Intl
Mon 3/30
7:49 pm-9:59 am
1 stop17h 10m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Sat 3/14
10:25 pm-6:49 am
Nonstop5h 24m
Boston Logan Intl
Sun 3/22
6:45 pm-10:10 pm
Nonstop6h 25m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Fri 5/1
3:21 pm-11:59 pm
Nonstop5h 38m
Boston Logan Intl
Sat 5/9
5:46 pm-9:26 am
1 stop18h 40m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Wed 3/25
8:30 am-5:53 am
1 stop18h 23m
Boston Logan Intl
Mon 3/30
6:10 pm-9:34 pm
Nonstop6h 24m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Wed 3/4
7:30 am-3:59 pm
Nonstop5h 29m
Boston Logan Intl
Sun 3/8
5:30 am-9:15 pm
1 stop19h 45m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Mon 2/23
10:40 pm-6:54 am
Nonstop5h 14m
Boston Logan Intl
Sun 3/1
5:44 pm-9:28 am
1 stop18h 44m
SeattleBoston
SEA - BOS
SEABOS
Seattle/Tacoma Intl
Sat 2/7
9:25 am-9:42 pm
1 stop9h 17m
Boston Logan Intl
Wed 2/11
10:30 am-4:01 pm
1 stop8h 31m
To ensure you get the cheapest price possible for a flight from Seattle to Falmouth, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, March is the cheapest month in which you can book a flight from Seattle to Falmouth (average of $108). Flying from Seattle to Falmouth in December is currently the most expensive (average of $244). 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.
It’s optimal to fly from Seattle to Falmouth at noon. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight in the morning.
Travelers seeking maximum savings on their Seattle to Falmouth flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from SEA to FM5 are scheduled on a Thursday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).
Comfort
Entertainment
Overall
Crew
Food
Boarding
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Overall
Crew
Food
Boarding
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Overall
Crew
Food
Boarding
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Overall
Crew
Food
Boarding
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Overall
Crew
Food
Boarding
Reviews
Anonymous,Dec 2025
SEA - MSY
Comfort
Entertainment
Overall
Crew
Food
Boarding
Reviews
Anonymous,Dec 2025
SEA - MSY
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$296 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$119 | Average$319 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$140 | Average$428 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$178 | Average$470 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$196 | Average$425 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$213 | Average$398 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$223 | Average$457 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$236 | Average$560 | FlexibilityNo cancel fee | On-time75% |