Cheap flights from Boston to Seattle from £96
Trusted by millions
Kiwi.com Guarantee for stress-free travel
One search, all the best deals
Explore flight deals to Seattle
Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
Search by price
Search by departure date
Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
Search by price
Search by departure date
How much do flights to Seattle cost?
Key info about flying to Seattle
Weekly direct flights
Discover the top airlines offering direct flights from Boston to Seattle in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 23.06 | Tue 24.06 | Wed 25.06 | Thu 26.06 | Fri 27.06 | Sat 28.06 | Sun 29.06 |
|---|---|---|---|---|---|---|---|
| 4 | 3 | 4 | 4 | 4 | 4 | 4 | |
| 2 | --- | --- | 2 | 2 | 2 | 2 | |
| 3 | 2 | 2 | --- | --- | --- | --- | |
| Weekly flights: 44 total | Daily flights: 6.29 average | Most flights: Monday 4 flights |
| Airline | Mon 30.06 | Tue 01.07 | Wed 02.07 | Thu 03.07 | Fri 04.07 | Sat 05.07 | Sun 06.07 |
|---|---|---|---|---|---|---|---|
| 4 | --- | 4 | 4 | 4 | 4 | 4 | |
| 2 | 2 | 2 | 2 | 2 | 2 | 2 | |
| --- | 4 | --- | --- | --- | --- | --- | |
| Weekly flights: 42 total | Daily flights: 6 average | Most flights: Monday 4 flights |
| Airline | Mon 07.07 | Tue 08.07 | Wed 09.07 | Thu 10.07 | Fri 11.07 | Sat 12.07 | Sun 13.07 |
|---|---|---|---|---|---|---|---|
| 4 | 3 | 4 | 4 | 4 | 4 | 4 | |
| 2 | 2 | 2 | 2 | 1 | 1 | 2 | |
| --- | 1 | --- | --- | --- | --- | --- | |
| Weekly flights: 40 total | Daily flights: 5.71 average | Most flights: Monday 4 flights |
| Airline | Mon 14.07 | Tue 15.07 | Wed 16.07 | Thu 17.07 | Fri 18.07 | Sat 19.07 | Sun 20.07 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
| 2 | 2 | 2 | 2 | 1 | 2 | 1 | |
| --- | --- | 3 | 1 | --- | --- | --- | |
| Weekly flights: 44 total | Daily flights: 6.29 average | Most flights: Monday 4 flights |
Check-in for a flight from Boston to Seattle
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| United Airlines | UAL | UA | No |
| Hawaiian Airlines | HAL | HA | No |
| American Airlines | AAL | AA | No |
| JetBlue Airways | JBU | B6 | No |
| Alaska Airlines | ASA | AS | No |
Online check-in is not available for these airlines.
Weather in Seattle
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 7°C | 2°C |
| February | 8°C | 1°C |
| March | 10°C | 3°C |
| April | 13°C | 5°C |
| May | 18°C | 8°C |
| June | 21°C | 10°C |
| July | 25°C | 13°C |
| August | 26°C | 14°C |
| September | 22°C | 11°C |
| October | 15°C | 7°C |
| November | 10°C | 4°C |
| December | 6°C | 2°C |
14 day forecast
Seattle travel tips
The Seattle Waterfront is just a perfect place for strolling. Grab some food and find a secluded spot near the water passing by all street vendors. Enjoy watching the sunset, feel the vibe of Seattle, and appreciate life!
To stay downtown is cool, but the neighbourhoods of Seattle are also worth visiting. For example, Ballard is a charming historic neighbourhood, which nowadays is considered to be the trendiest. It’s overflowing with fancy bars, restaurants, stores as well as rich in maritime history. Check it out!
In Seattle, tap water is announced to be safe for drinking. However, to be on the safe side, restrain from drinking it or use an active carbon filter such as TAPP, which is quite affordable. Stay reasonable!
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Boston
Flights to Seattle
Popular routes
Airports near Boston
Airports near Seattle
Download our app
Start your next adventure now. Download our app and explore cheap flights effortlessly!