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Cheap Flights from Boston to Seattle (SEA)
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Average price per month
- Low Season: February
- High Season: September
- Prices for this route are volatile and fluctuate from month to month.
- The cheapest flights are usually bought in February, April and January.
- High season months are December, June and September. However, it's not the rule and you should always search current flight deals.
Price increase as travel date approaches
- Flight prices for this route increase by 49% if you book last minute. Hover on the graph above to see for yourself!.
- To grab the lowest price possible, you should buy your flight around 35 days before departure!
- Consider booking at least 15 days before departure to increase your chances of getting a low price.
- Generally, it's safe to book between 90 and 60 days in advance.
Boston to Seattle Flight Information
| Flights Depart From | Boston (BOS) |
| Flights Arriving To | Seattle (SEA) |
| Distance | 4005 km |
| Current Price | $196.6 |
| Good Deal | $212.67 |
| Cheapest Airlines | Hawaiian Airlines, Alaska Airlines, Delta Air Lines, American Airlines, JetBlue |
| Popular Airlines | JetBlue, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, American Airlines, United Airlines |
| Flight Duration | 05 hours 20 minutes |
| Flights Depart From |
| Boston (BOS) |
| Flights Arrive In |
| Seattle (SEA) |
| Distance |
| 4005 km |
| Flight Duration |
| 05 hours 20 minutes |
| Current Price |
| $196.6 |
| Good Deal |
| $212.67 |
| Cheapest Airlines |
| Hawaiian Airlines, Alaska Airlines, Delta Air Lines, American Airlines, JetBlue |
| Popular Airlines |
| JetBlue, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, American Airlines, United Airlines |
Most Reliable Airlines flying to Seattle
- According to our data, JetBlue, Alaska Airlines and Delta Air Lines have the highest overall rating.
- The following airlines have the highest chance of on time arrivals: Alaska Airlines, Delta Air Lines and American Airlines.
- If legroom is important for you then you should consider flying with JetBlue, Alaska Airlines and American Airlines.
| Airline | Overall Rating | On time arrival | Check-in & Boarding | Cleanliness | Customer Service | Food & Beverage | Entertainment | Legroom | Seat Comfort |
|---|---|---|---|---|---|---|---|---|---|
JetBlue |
4.2 | 4.0 | 4.5 | 4.5 | 4.0 | 4.0 | 4.0 | 4.5 | 4.0 |
Alaska Airlines |
4.1 | 4.5 | 4.5 | 4.5 | 4.5 | 3.5 | 3.5 | 4.0 | 4.0 |
Delta Air Lines |
3.8 | 4.5 | 4.0 | 4.0 | 4.0 | 3.5 | 4.0 | 3.5 | 3.5 |
Hawaiian Airlines |
3.8 | - | 4.0 | 4.0 | 4.0 | 3.5 | 3.5 | 4.0 | 3.5 |
American Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.5 | 3.0 |
United Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.0 | 3.0 |
Overall Rating
4.0
On time arrival
4.0
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.0
Food & Beverage
4.0
Entertainment
4.0
Legroom
4.5
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.5
Food & Beverage
3.5
Entertainment
3.5
Legroom
4.0
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.0
Cleanliness
4.0
Customer Service
4.0
Food & Beverage
3.5
Entertainment
4.0
Legroom
3.5
Seat Comfort
3.5
Overall Rating
4.0
On time arrival
-
Check-in & Boarding
4.0
Cleanliness
4.0
Customer Service
4.0
Food & Beverage
3.5
Entertainment
3.5
Legroom
4.0
Seat Comfort
3.5
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.5
Seat Comfort
3.0
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.0
Seat Comfort
3.0
Good to know:
- Seattle-Tacoma International is the major airport in Seattle and surrounding area.
Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.
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Did you know that you could find even better deals when you use our Mobile App?. Awesome Deals
notifications_active In the past few days the following airlines offered the lowest prices from Boston to Seattle: Hawaiian Airlines, Alaska Airlines, Delta Air Lines, American Airlines and JetBlue..
Hawaiian AirlinesThu, 11 Sep BOS SEA
Mon, 15 Sep SEA BOS Trip duration: 4 days$196.6
Hawaiian AirlinesThu, 25 Sep BOS SEA
Sun, 28 Sep SEA BOS Trip duration: 3 days$206.6
Hawaiian AirlinesThu, 23 Oct BOS SEA
Sun, 26 Oct SEA BOS Trip duration: 3 days$216.6
Hawaiian AirlinesSun, 14 Sep BOS SEA
Tue, 23 Sep SEA BOS Trip duration: 9 days$216.6
Alaska AirlinesWed, 22 Oct BOS SEA
Wed, 29 Oct SEA BOS Trip duration: 7 days$216.6
Alaska AirlinesTue, 16 Sep BOS SEA
Mon, 22 Sep SEA BOS Trip duration: 6 days$216.6
Alaska AirlinesThu, 09 Oct BOS SEA
Mon, 13 Oct SEA BOS Trip duration: 4 days$216.6
Alaska AirlinesThu, 25 Sep BOS SEA
Sun, 28 Sep SEA BOS Trip duration: 3 days$216.6
Delta Air LinesMon, 13 Oct BOS SEA
Mon, 20 Oct SEA BOS Trip duration: 7 days$216.96
Hawaiian AirlinesTue, 16 Sep BOS SEA
Thu, 18 Sep SEA BOS Trip duration: 2 days$226.59
American AirlinesWed, 24 Sep BOS SEA
Wed, 08 Oct SEA BOS Trip duration: 14 days$236.36
Hawaiian AirlinesTue, 09 Sep BOS SEA
Wed, 24 Sep SEA BOS Trip duration: 15 days$236.59
American AirlinesThu, 14 Aug BOS SEA
Tue, 19 Aug SEA BOS Trip duration: 5 days$256.36
Hawaiian AirlinesFri, 19 Sep BOS SEA
Fri, 10 Oct SEA BOS Trip duration: 21 days$256.6
American AirlinesTue, 12 Aug BOS SEA
Tue, 19 Aug SEA BOS Trip duration: 7 days$256.68
JetBlueSun, 13 Jul BOS SEA
Sun, 20 Jul SEA BOS Trip duration: 7 days$271.96
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Frequently Asked Questions
- How long is a direct flight from Boston to Seattle?A direct flight from Boston to Seattle takes roughly 05 hours 20 minutes.
- How many direct flights are there between Boston to Seattle daily?On average, there are 37 direct flights from Boston to Seattle each day.
- Which airlines offer cheap airfare from Boston to Seattle?That may change at any time. But in the past 14 days, the cheapest tickets we've found were with Hawaiian Airlines, Alaska Airlines, Delta Air Lines, American Airlines and JetBlue.
- Do I need my passport to fly from Boston to Seattle?Nope, not this time.
- Which airlines fly from Boston to Seattle most often?JetBlue, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, American Airlines and United Airlines are the top.
- What's the cheapest day to fly from Boston to Seattle?That depends. Recently, the cheapest day to fly from Boston to Seattle has been Wednesday. And the cheapest return flight from Saturday has been. That said, the cheapest departure days are constantly changing.
- Which airport will I be flying from in Boston?When departing from Boston you'll be flying out of Logan International.
- Which airport will I be flying from in Seattle?When departing from Seattle you'll be flying out of Seattle-Tacoma International.
- How is Justfly.com so good at finding cheap flights?We've taken an oath of secrecy and vowed never to say. Just kidding. Our team and technology allows us to browse through hundreds of airlines and hundreds of thousands of flights to find the lowest prices. Then we pass the savings on to you.
- Can Justfly.com help me save money in any other way?We're glad you asked. We help you save money with our Fare Alerts, Price Trend charts and multi-ticket bookings. We also help you save on hotels and car rentals.
- How many airlines does Justfly.com search to find affordable flights?We typically search over 400 airlines.
- Can Justfly.com's Price Trend tool really tell me the best time to buy tickets?Absolutely! That's why we've made it accessible to you.
- Will the price of my flight change?Flight prices and availability change often. To counter this, we update the important data as often as possible every step of the way.
- How will I receive my booking confirmation and travel information?We'll send you an email with the important details!
- Can you cancel or change Justfly.com flights?You sure can. But give us a call first. We'll do our best to find a solution. However, in some cases, if we cancel your booking, we'll have to charge an administrative fee of $75 (domestic), $125 (trans-border between Canada and USA) and $200 (international).
- Are Justfly.com's tickets refundable?All bookings are currently non-refundable.
- How do I contact Justfly.com?To find answers to all of your questions, click here to visit our support page.