Heightened sanitation
Daily cleaning, installation of cabin HEPA filters on flights from Seattle to Boston
Low season |
January | Best time to beat the crowds with an average 29% drop in price. |
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High season |
December | Most popular time to fly with an average 35% increase in price. |
Average price round-trip |
$291 | (avg. price over the last 2 weeks) |
Good deal round-trip |
$237 | or less |
Good deal one-way |
$153 | or less |
Alaska Airlines, Delta and Korean Air have all waived their change and cancellation fees on flights from Seattle to Boston. Confirm policies on booking site.
Alaska Airlines and Delta do not allow booking a middle seat on flights from Seattle to Boston.
Entry restrictions
The United States has restricted the entry of all foreign nationals who have passed through or have been in China, Iran, Most European Countries (Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, Monaco, San Marino, Vatican City), the UK, Ireland, Brazil and South Africa in the past 14 days.
With the exception of certain travelers which includes certain family members of US citizens or permanent residents including; spouses, children (under the age of 21), parents (provided that his/her US citizen or permanent resident child is unmarried and under the age of 21), and siblings (provided that both the sibling and the US citizen or permanent resident are unmarried and under the age of 21);
There is also an exception for travelers with the following visas: A-1, A-2, C-1, C-1/D, C-2, C-3, CR-1, CR-2, D, E-1 (as an employee of TECRO or TECO or the employee's immediate family members), G-1, G-2, G-3, G-4, IR-1, IR-4, IH-4, NATO-1 through NATO-4, or NATO-6 visa;
Members of the US Armed Forces, spouses, and children of members of the US Armed Forces;
Travelers with invitation of the USA government for a purpose related to the containment/mitigation of the Coronavirus (COVID-19);
Travelers with documents issued by the US Department of Homeland Security, US Customs and Border Protection, or US Department of State indicating that the traveler is exempt from the restriction;
B1 crew crewmembers that are engaged in lightering, Outer Continental Shelf (OCS) activity, wind farm activity, private air/sea crew and other similar crewmember activities;
Students with an F-1 or M-1 visa and their F-2 and M-2 dependents, if they arrive from or have been in Ireland, the UK or Schengen Area in the past 14 days.
Entry requirements
All travelers, 2 years of age or older (including US citizens and transit passenger) must present a negative COVID-19 viral or antigen test result issued 72 hours prior to departure or have a proof of recovery from the virus within the last 90 days prior to boarding the plane.
Travelers must complete a disclosure and attestation form before departure.
Exemptions or waiver to the testing requirements may be granted by the CDC on an extremely limited basis when emergency travel (like an emergency medical evacuation) must occur to preserve someone’s life, health against a serious danger, or physical safety and testing cannot be completed before travel.
US citizens and permanent residents arriving from the UK must present a medical certificate with a negative COVID-19 PCR or antigen test result issued within 72 hours prior to departure.
Travelers arriving in New York State must complete the Traveler Health Form.
Travelers arriving in Massachusetts must complete the Massachusetts Health Form.
Quarantine requirements
Travelers are advised to get tested 3-5 days after travel and stay home and self-quarantine for 7 days after travel. Even if they test negative, they must still stay home and self-quarantine for the full 7 days. If the test is positive, isolate to protect others from getting infected.
Travelers who did not get tested, are advised to stay home and self-quarantine for 10 days after travel.
All other info
Travelers are subject to COVID-19 measures set by the state/territory of their final destination. For more information go to CDC website.
There are currently 1,105 active cases of COVID-19 diagnosed in US and 0 deaths as of Mar 2 2021
Please see our Coronavirus (COVID-19) Travel Restrictions page for more information on restrictions worldwide.
An average nonstop flight takes 9h 30m, covering a distance of 2489 miles.
There are 219 (nonstop) flights between Seattle and Boston per week, averaging 31 per day.
In the past 3 days, the cheapest one-way tickets were found on Spirit Airlines ($32) and Multiple Airlines ($62), and the lowest round-trip tickets have been found on Multiple Airlines ($132) and Spirit Airlines ($144).
No.
Alaska Airlines (7 times daily), Hawaiian Airlines (3 times daily), Delta (2 times daily) are the most frequent flyers on this route.
From Seattle to Boston, Wednesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Boston back to Seattle , the best deals are generally found on Thursday, with Saturday being the most expensive.
When flying out of Seattle you will be using Seattle/Tacoma Intl, often referred to as Seattle Airport. You will be landing at Boston Logan Intl, also known as Boston Airport.
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Boston.
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Seattle with another airline.
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
Scores according to KAYAK customer reviews
Pros: "It got the job done"
Cons: "We were delayed about 45 minutes, which happens, I’m fine with that. I did not like that there was zero communication about it. Up until the scheduled takeoff they still hadn’t told us it would be delayed and nothing else was updated either to indicated a delay."
Cons: "The way have to bus us to the plane."
Pros: "Plane interior was bright and new."
Cons: "Baggage retrieval. Chairs don't recline."
Pros: "This airline is completely disorganized and with no apologies. I waited an hour in a bag drop line and then an hour and a half in the plane with no real explanation as to why. Planes are super bare bones which is fine. They just seem to be incredibly understaffed and unorganized as a company. All of the attendants and desk workers were trying their best but were set up for failure"
Cons: "This airline is completely disorganized and with no apologies. I waited an hour in a bag drop line and then an hour and a half in the plane with no real explanation as to why. Planes are super bare bones which is fine. They just seem to be incredibly understaffed and unorganized as a company. All of the attendants and desk workers were trying their best but were set up for failure"
Pros: "hmm"
Cons: "layover nothing was in order staff sucked yall kept moving gate yall could at lest give us a soda for the long rides"
Pros: "Nothing"
Cons: "It was a total shit-show. Only one person to check people in the counter. No kiosks were working on my way back. On the way there very few were working, I did it once, paid for my one bag, and it printed blank. There were no available workers to help me, so I switched to another kiosk and had to again, pay for my bag. On the way back we landed and had to wait 30 minutes to get to the gate. It was a horrible experience in all."
Pros: "Family emergency caused us to stay 4 more days -"
Cons: "No credit offered"
Cons: "The breaks failed on the plane so we had to deplane at the gate. They couldn't get us out until late the next day so I had to cancel my trip."
Pros: "Timely as expected"
Pros: "I sat in row 3 and had a lot of leg room. I am 6' 2" and usually have 0 leg room in most coach seating."
Cons: "There were no free snacks/soft drinks available."
Pros: "Reclining seat"
Cons: "Not having a seat in front to stretch legs out."
Cons: "None"
Cons: "No one at Frontier desk. Sign stated to check in at kiosk or online, but there were no kiosks. Online check in was unnecessarily long and onerous, and then last step couldn't be completed; advised to download app. Then had to repeat process with app. Then had to go back to desk to drop off luggage; still no one there, very long long formed, and finally when someone came to the desk the line took 20 minutes. Every other airline has figured out how to avoid this!"
Pros: "Cheap, kind of"
Cons: "No food, no water, no recline, no relax, no hospitality"
Cons: "Unexpected fees on carry ons, should be more clear about charges. Tiny trays couldn't for my snack and drinks even. Won't fly with frontier again"
Cons: "Uncomfortable and everything was delayed. Overall terrible"
Cons: "We landed early and then had to sit on the tarmac for 45 minutes for a gate. And then the jetway didn't work. So instead of getting home early for a change, I wasn't home until very late."
Cons: "It is very clear that Frontier is a budget airline that prioritizes money over people. Right down to the unnecessary announcement that you may not drink your own 'minis' but are required to purchase their liquor (at ridiculously inflated prices). The pretty girls who approached us and offered perks...for a price as we queued for more than an hour simply to check in, made me feel even more like faceless animal prey with dollars in my pockets. I will not fly Frontier again, no matter how 'cheap' their tickets."
Pros: "I got home safely"
Cons: "Both flights were over an hour and a half late. The seat designer should be arrested! Drinks and snacks were beyond "overpriced"!!"
Pros: "Fiight itself was ok"
Cons: "I did not like out of the two tickets I did buy I had to pay an additional $104.00 for seating and baggage"
Pros: "Quick boarding"
Cons: "Paying for carry on luggage."
Pros: "Nothing"
Cons: "Carry on fee?!?! WTF!!!"
Pros: "Cheap"
Cons: "Unexpected fees"
Pros: "stewardess was excellent/funny"
Cons: "too cramped. to get additional legroom it is more money."
Pros: "What is to like?"
Cons: "everything!"
Pros: "The staff was kindly and it moved swiftly."
Cons: "Hour late,"
Cons: "It is a sad state of affairs to charge $40 -45 To carry a weekend bag on board."
Pros: "The airline niceled and dimes you to death. My luggage charges were almost as much as the airfare. I will never ever fly Frontier again. The trip sucked!"
Cons: "NOTHING"
Pros: "nothing"
Cons: "everything"
Pros: "Nothing in particular stood out"
Cons: "Cost of ~49 $ extra for a carry on. This adds 90$ to trip. I would have choose another airline if I had known this was the ask."
Cons: "The hour and a half delay. Some of the passengers who were drinking were a little noisy, and used language inappropriate for the kids and the location for adult"
Pros: "Delayed 2 hours with no update information. As a frustrated passenger asked for answers. Called all over the nation for help. Upon boarding, was told Frontier had the right not to serve me. Refunded my money and then i had to book through another airline at 3am... long story short, nightmare."
Cons: "All of it."
Cons: "Showed up a day late. Oops!!!"
Pros: "Nothing"
Cons: "Everything"
Cons: "Really uncomfortable chairs that don't recline, no drink service included."
Cons: "Paying up to $60 for a carry on. Waiting on the runway for 30 minutes with no communication from the pilot when we landed in Denver."
Pros: "Pilots"
Cons: "Service"
Pros: "Cost"
Cons: "6/11/2016- stuck on Tarmac for no reason for over an hour. Missed last shuttle to Boulder due to waiting on luggage at baggage claim for another 2 hrs. Unacceptable!!!"
Cons: "Delayed forced me to rebook with different carrier last minute"
Pros: "The price and the ability to reserve a seat"
Cons: "No wifi dude"
Pros: "Nothing"
Cons: "Staff is rude, not considerate at all"
Pros: "everything was great"
Cons: "nothing"
Cons: "Should at least offer water(for free) to passengers"
Cons: "Hit a bird and had to return to the airport."
Pros: "All was good!"
Pros: "Getting off the plane."
Cons: "Everything else."
Cons: "They charged me for my carry on at the gate!"
Cons: "Bad service, expensive everything"
Pros: "No issues. It was comfortable."
Pros: "No lines"
Cons: "Spirit employees at check in"
Pros: "I enoyed my flights to Seattle and back to los Angeles"
Cons: "Spirit over chargin carry on and luggage 55.00 per carry on and 65.00 per luggage"
Pros: "The staff was friendly. That's the only good thing about my Spirit experience!"
Cons: "Everything was bad!!"
Pros: "Cheap"
Cons: "Second of two flights that were late Baggage pick up took twenty minutes..."
Pros: "The attitude's of the staff was excellent..."
Cons: "I didn't like the high prices for luggage and why I couldn't pay for my bag on line after going to your site repeatedly?!"
Pros: "It was ontime and uneventful. OTOH it was Spirit."
Pros: "Nothing"
Cons: "Cramped seating"
Cons: "So just remember that while the ticket itself might not be that expensive, you'll be charged for everything other than your personal bag, which might make up for the difference in ticket cost. Both of my flights were also delayed by about a half hour, which didn't make that much difference to my trip, but could be problematic if you have a tight layover."
Pros: "Nothing"
Cons: "Everything"
Pros: "nothing"
Cons: "everything"
Pros: "Nice to have an economic no frills option for flying. Would like them to allow a normal size carry on for free. It wouldn't be worth the price if I had to pay the large bag fees."
Cons: "Have been using the small carry-on suitcase for years boarding other airlines without any problems, it fits the Spirit case-measuring device, only the wheels were outside. I was ripped off by the gate agents for $130 for me and my daughter."
Cons: "Both flights on Spirit were delayed by an hour or more."
Cons: "Never again with spirit."
Pros: "Got a free upgrade to first seat. Super comfy!"
Cons: "Constant pitching and threatening about paying for bags. Constant yammer on the plane about offers etc. Money, Money, Money is all they talk about!!!!"
Pros: "Boarding was fast and efficient."
Cons: "The food selections for purchase were poor."
Pros: "Nothing"
Cons: "Everything"
Pros: "Nothing much"
Cons: "Paying my small luggage for 45 dollars"
Pros: "NOTHING"
Cons: "Spirit may as well charge real ticket prices instead of charging arms and legs once they've got you "on the line and in the door". I've NEVER experienced such terrible add-on charges"
Pros: "I got put into row 3 by the gate attendant! Nice wide seat, plenty of legroom. What's not to like?"
Cons: "My bag was lost and the people who work there are incompetent"
Cons: "please see my scathing 1x page long review to feedback"
Cons: "Ridiculous charges for Carry-on and checked luggage. An hour wait between landing and going to the gate. Long wait for bags to get to carrousell."
Pros: "That it was cheap."
Pros: "Boarding/seating fine."
Cons: "1 hour wait to deplane for lack of gate. Food & entertainment does not exist without charge."
Pros: "I got what I payed for. No complaints."
Pros: "If you can prepare for your trip well this works out really well."
Pros: "Got to Boston 20 minutes early"
Cons: "Planes are filthy."
Pros: "Nothing"
Cons: "No compensation, missed first day if trip, no explanation"
Pros: "50$ cheaper sounded attractive but its not worth saving that money for comfort"
Cons: "They did not even accept the electronic boarding pass from Spirit at the security and send me back for printing it"
Cons: "Everything"
Cons: "Baggage fee"
Cons: "Terrible, they charged extra for everything and not professional"
Pros: "Nothing"
Cons: "Horrible servie. Just taking money for no show. Terrible system."
Pros: "overall value"
Cons: "need more legroom, tray table was minimal"
Pros: "Big comfy seat was worth the upgrade."
Pros: "Inexpensive"
Cons: "Very cramped. No reclining. This is the city bus of airlines."
Pros: "Good rate"
Cons: "Like all"
Cons: "If you're eager for an entirely dehumanizing, infuriating travel experience, try Spirit!"
Pros: "Got where I was going in a timely fashion and at a great price point"
Cons: "Couldn't bring as much with me as I'd like, but everyone could do with a bit of simplification!"
Cons: "Spirit airlines"
Pros: "Arrived in one piece."
Cons: "Seat space nonexistent and they can't move back."
Cons: "LONG delays!"
Pros: "No hassles"
Cons: "Advertising and limited space"
Cons: "Charging $55 for a carry-on in order to make your tickets appear cheaper on sites like Kayak.com is a total scam."
Pros: "Nothing"
Cons: "Extra carry on costs Delay"
Cons: "Spirit charges 50.00 fee for checked AND carry on"
Airlines flying from Seattle to Boston have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.
Heightened sanitation
Daily cleaning, installation of cabin HEPA filters on flights from Seattle to Boston
Mandatory masks
Masks required on board, masks provided on flights from Seattle to Boston
Social distancing seating
Middle seats unavailable to book on flights from Seattle to Boston
Pre-flight testing
Testing for antibodies, testing for symptoms for flights from Seattle to Boston
Flexible cancellations
Waiving of change fees. Search flexible flights from Seattle to Boston
Average price | |
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Flights | $621 |
Trains | $426 |