Cheap flights from Seattle, WA to Boston, MA
Flights starting at CA$157. Choose between United Airlines, Alaska Airlines, or JetBlue Airways to find the best price.
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How much do flights to Boston cost?
Cheapest one-way trip | CA$157 |
|---|---|
Cheapest nonstop round-trip | CA$317 |
Cheapest round-trip | CA$290 |
Average round-trip | CA$512 |
Nonstop flights in December | CA$170 – CA$1,145 |
Key info about flying to Boston
Great deals from Seattle to Boston
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Weekly direct flights
Discover the top airlines offering direct flights from Seattle to Boston in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Sun 15.12 | Mon 16.12 | Tue 17.12 | Wed 18.12 | Thu 19.12 | Fri 20.12 | Sat 21.12 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | 1 | 3 | 3 | 2 | |
| --- | --- | --- | --- | 1 | 1 | 1 | |
| Weekly flights: 12 total | Daily flights: 1.71 average | Most flights: Thursday 3 flights |
| Airline | Sun 22.12 | Mon 23.12 | Tue 24.12 | Wed 25.12 | Thu 26.12 | Fri 27.12 | Sat 28.12 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 3 | 3 | 3 | 3 | 2 | |
| 1 | 1 | 1 | --- | --- | --- | 1 | |
| Weekly flights: 24 total | Daily flights: 3.43 average | Most flights: Sunday 3 flights |
| Airline | Sun 29.12 | Mon 30.12 | Tue 31.12 | Wed 01.01 | Thu 02.01 | Fri 03.01 | Sat 04.01 |
|---|---|---|---|---|---|---|---|
| 3 | 3 | 3 | 3 | 3 | 3 | 2 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Weekly flights: 27 total | Daily flights: 3.86 average | Most flights: Sunday 3 flights |
| Airline | Sun 05.01 | Mon 06.01 | Tue 07.01 | Wed 08.01 | Thu 09.01 | Fri 10.01 | Sat 11.01 |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 1 | 1 | 2 | 2 | 2 | |
| --- | 1 | 1 | 1 | 1 | 1 | 1 | |
| Weekly flights: 18 total | Daily flights: 2.57 average | Most flights: Sunday 2 flights |
Check-in for a flight from Seattle to Boston
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| United Airlines | UAL | UA | Yes |
| Alaska Airlines | ASA | AS | No |
| JetBlue Airways | JBU | B6 | No |
| American Airlines | AAL | AA | No |
Online check-in is not available for these airlines.
Weather in Boston
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 2°C | -4°C |
| February | 3°C | -3°C |
| March | 7°C | 0°C |
| April | 13°C | 5°C |
| May | 19°C | 10°C |
| June | 23°C | 14°C |
| July | 27°C | 18°C |
| August | 27°C | 18°C |
| September | 23°C | 14°C |
| October | 16°C | 9°C |
| November | 10°C | 3°C |
| December | 5°C | 0°C |
14 day forecast
Frequently asked questions
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