Cheap flights from Seattle to Boston from £116
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How much do flights to Boston cost?
Cheapest one-way trip | £116 |
|---|---|
Cheapest nonstop round-trip | £244 |
Cheapest round-trip | £276 |
Average round-trip | £308 |
Nonstop flights in May | £120 – £748 |
Getting from Boston's airport to the city center
Fastest options: Blue Line subway or taxi. Best value: MBTA Blue Line and Silver Line bus.
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
10-15 min | $2.40; CharlieCard fare | every 5–10 min (traffic dependent) | budget travelers | |
15-25 min | $0; free from airport to South Station | every 8–15 min (traffic dependent) | free ride to South Station | |
7-15 min | $15 – $22; varies by operator and destination | on-demand during operating hours (traffic dependent) | scenic harbor crossing | |
15-35 min | $25 – $45; metered; includes tunnel tolls and airport fee | on-demand 24/7 (traffic dependent) | door-to-door convenience | |
15-35 min | $20 – $50; surge pricing may apply | on-demand 24/7 (traffic dependent) | app-based booking | |
15-35 min | $50 – $100; pre-booked; varies by provider | by reservation (traffic dependent) | groups or business travelers | |
15-40 min | $40 – $100; daily rate; parking extra in downtown | on-demand (traffic dependent) | exploring beyond Boston |
Notes:
- Prices in USD; table created in 2025 and subject to change.
- The Silver Line SL1 is free when traveling from the airport to South Station; fare applies in the opposite direction.
- Free shuttle buses connect all airport terminals to the Blue Line Airport station and the rental car center.
- Taxi fares include a $2.75 airport fee and tunnel tolls; traffic can significantly affect journey times.
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
Key info about flying to Boston
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 | Mon 25.05 | Tue 26.05 | Wed 27.05 | Thu 28.05 | Fri 29.05 | Sat 30.05 | Sun 31.05 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | 4 | 4 | 4 | 4 | |
| --- | --- | --- | 1 | 1 | 1 | 1 | |
| --- | --- | --- | 1 | 1 | 1 | 1 | |
| Weekly flights: 24 total | Daily flights: 3.43 average | Most flights: Thursday 4 flights |
| Airline | Mon 01.06 | Tue 02.06 | Wed 03.06 | Thu 04.06 | Fri 05.06 | Sat 06.06 | Sun 07.06 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 1 | 1 | 1 | 1 | 1 | 1 | --- | |
| Weekly flights: 41 total | Daily flights: 5.86 average | Most flights: Monday 4 flights |
| Airline | Mon 08.06 | Tue 09.06 | Wed 10.06 | Thu 11.06 | Fri 12.06 | Sat 13.06 | Sun 14.06 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 3 | 4 | |
| 1 | 1 | 1 | 2 | 2 | 1 | 2 | |
| --- | 1 | 1 | --- | --- | --- | --- | |
| Weekly flights: 39 total | Daily flights: 5.57 average | Most flights: Monday 4 flights |
| Airline | Mon 15.06 | Tue 16.06 | Wed 17.06 | Thu 18.06 | Fri 19.06 | Sat 20.06 | Sun 21.06 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 3 | 4 | |
| 2 | 1 | 2 | 2 | 2 | 2 | 2 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 40 total | Daily flights: 5.71 average | Most flights: Monday 4 flights |
Check-in for a flight from Seattle to Boston
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| JetBlue Airways | JBU | B6 | No |
| Alaska Airlines | ASA | AS | No |
| WestJet | WJA | WS | No |
| Harbour Air (Priv) | HES | YB | No |
| United Airlines | UAL | UA | 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 | 1°C | -4°C |
| February | 3°C | -4°C |
| March | 7°C | 0°C |
| April | 12°C | 5°C |
| May | 18°C | 10°C |
| June | 23°C | 15°C |
| July | 27°C | 19°C |
| August | 27°C | 18°C |
| September | 22°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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